Analysis Report yBio5dWAOl.exe

Overview

General Information

Sample Name: yBio5dWAOl.exe
Analysis ID: 381756
MD5: 101b50ca3a4279b8beba434a9830469c
SHA1: e8c991888b909af9214f77393ef7438bee611a16
SHA256: 3c944637c2265aca62569b447ff9b459f2ea02ad32eb7cddf0de715e3fa2eb5a
Tags: exeNanoCoreRAT
Infos:

Most interesting Screenshot:

Detection

Nanocore
Score: 100
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Antivirus / Scanner detection for submitted sample
Detected Nanocore Rat
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected Nanocore RAT
.NET source code contains potential unpacker
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Antivirus or Machine Learning detection for unpacked file
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains long sleeps (>= 3 min)
Detected TCP or UDP traffic on non-standard ports
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Uses 32bit PE files
Yara signature match

Classification

AV Detection:

barindex
Antivirus / Scanner detection for submitted sample
Source: yBio5dWAOl.exe Avira: detected
Multi AV Scanner detection for submitted file
Source: yBio5dWAOl.exe Virustotal: Detection: 79% Perma Link
Source: yBio5dWAOl.exe ReversingLabs: Detection: 100%
Yara detected Nanocore RAT
Source: Yara match File source: yBio5dWAOl.exe, type: SAMPLE
Source: Yara match File source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY
Source: Yara match File source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE
Machine Learning detection for sample
Source: yBio5dWAOl.exe Joe Sandbox ML: detected
Antivirus or Machine Learning detection for unpacked file
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack Avira: Label: TR/Dropper.MSIL.Gen7

Compliance:

barindex
Uses 32bit PE files
Source: yBio5dWAOl.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9445_none_d08c58b4442ba54f\MSVCR80.dll Jump to behavior

Networking:

barindex
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49733 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49740 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49746 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49747 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49748 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49751 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49752 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49753 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49764 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49767 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49771 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49777 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49778 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49779 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49780 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49782 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49784 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49785 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49786 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49787 -> 79.134.225.7:161
Source: Traffic Snort IDS: 1418 SNMP request tcp 192.168.2.4:49788 -> 79.134.225.7:161
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.4:49733 -> 79.134.225.7:161
IP address seen in connection with other malware
Source: Joe Sandbox View IP Address: 79.134.225.7 79.134.225.7
Internet Provider seen in connection with other malware
Source: Joe Sandbox View ASN Name: FINK-TELECOM-SERVICESCH FINK-TELECOM-SERVICESCH
Source: unknown DNS traffic detected: queries for: view43748.viewdns.net

E-Banking Fraud:

barindex
Yara detected Nanocore RAT
Source: Yara match File source: yBio5dWAOl.exe, type: SAMPLE
Source: Yara match File source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY
Source: Yara match File source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE

System Summary:

barindex
Malicious sample detected (through community Yara rule)
Source: yBio5dWAOl.exe, type: SAMPLE Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: yBio5dWAOl.exe, type: SAMPLE Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE Matched rule: Detetcs the Nanocore RAT Author: Florian Roth
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE Matched rule: NanoCore Author: Kevin Breen <kevin@techanarchy.net>
Uses 32bit PE files
Source: yBio5dWAOl.exe Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED
Yara signature match
Source: yBio5dWAOl.exe, type: SAMPLE Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: yBio5dWAOl.exe, type: SAMPLE Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: yBio5dWAOl.exe, type: SAMPLE Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE Matched rule: Nanocore_RAT_Gen_2 date = 2016-04-22, hash1 = 755f49a4ffef5b1b62f4b5a5de279868c0c1766b528648febf76628f1fe39050, author = Florian Roth, description = Detetcs the Nanocore RAT, license = https://creativecommons.org/licenses/by-nc/4.0/, score = https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE Matched rule: Nanocore_RAT_Feb18_1 date = 2018-02-19, hash1 = aa486173e9d594729dbb5626748ce10a75ee966481b68c1b4f6323c827d9658c, author = Florian Roth, description = Detects Nanocore RAT, reference = Internal Research - T2T, license = https://creativecommons.org/licenses/by-nc/4.0/
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE Matched rule: NanoCore date = 2014/04, filetype = exe, author = Kevin Breen <kevin@techanarchy.net>, maltype = Remote Access Trojan, ref = http://malwareconfig.com/stats/NanoCore
Source: yBio5dWAOl.exe Static PE information: Section: .rsrc ZLIB complexity 0.999732142857
Source: yBio5dWAOl.exe, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: yBio5dWAOl.exe, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs Cryptographic APIs: 'CreateDecryptor'
Source: yBio5dWAOl.exe, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs Cryptographic APIs: 'TransformFinalBlock'
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Cryptographic APIs: 'TransformFinalBlock', 'CreateDecryptor'
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs Cryptographic APIs: 'CreateDecryptor'
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqVxXNKnhAcArgJoGGYXiyyQu003du003d.cs Cryptographic APIs: 'TransformFinalBlock'
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Security API names: System.Security.Principal.WindowsIdentity System.Security.Principal.WindowsIdentity::GetCurrent()
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Security API names: System.Boolean System.Security.Principal.WindowsPrincipal::IsInRole(System.Security.Principal.WindowsBuiltInRole)
Source: yBio5dWAOl.exe, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Security API names: System.Security.Principal.WindowsIdentity System.Security.Principal.WindowsIdentity::GetCurrent()
Source: yBio5dWAOl.exe, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs Security API names: System.Boolean System.Security.Principal.WindowsPrincipal::IsInRole(System.Security.Principal.WindowsBuiltInRole)
Source: classification engine Classification label: mal100.troj.evad.winEXE@1/3@21/1
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File created: C:\Users\user\AppData\Roaming\D06ED635-68F6-4E9A-955C-4899F5F57B9A Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\{cd4d42b9-d6a7-4a12-bb97-882b5bef7e8d}
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Mutant created: \Sessions\1\BaseNamedObjects\Global\.net clr networking
Source: yBio5dWAOl.exe Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Section loaded: C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\9603718106bd57ecfbb18fefd769cab4\mscorlib.ni.dll Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sorttbls.nlp Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Section loaded: C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\sortkey.nlp Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: yBio5dWAOl.exe Virustotal: Detection: 79%
Source: yBio5dWAOl.exe ReversingLabs: Detection: 100%
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File read: C:\Users\user\Desktop\yBio5dWAOl.exe Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0A29FF9E-7F9C-4437-8B11-F424491E3931}\InprocServer32 Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File opened: C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorrc.dll Jump to behavior
Source: yBio5dWAOl.exe Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File opened: C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.9445_none_d08c58b4442ba54f\MSVCR80.dll Jump to behavior

Data Obfuscation:

barindex
.NET source code contains potential unpacker
Source: yBio5dWAOl.exe, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs .Net Code: #=q_FL69pQf17BUSAFbWYu1SStMAbdu$R1GJ8VY8UL5_EA= System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: yBio5dWAOl.exe, u0023u003dqxoz66kOqvxr21iYXZYXWiumy9eZGwFWaiX4C5X8aecUu003d.cs .Net Code: #=qKU0J1fiP8KA33eFK1owekQ== System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqjIje6jGWLd2EOkfZXKqBbgu003du003d.cs .Net Code: #=q_FL69pQf17BUSAFbWYu1SStMAbdu$R1GJ8VY8UL5_EA= System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqxoz66kOqvxr21iYXZYXWiumy9eZGwFWaiX4C5X8aecUu003d.cs .Net Code: #=qKU0J1fiP8KA33eFK1owekQ== System.Reflection.Assembly System.Reflection.Assembly::Load(System.Byte[])
Source: yBio5dWAOl.exe, u0023u003dqJT4I5hOweIku0024xYFEeDszbikglXCuquUdu0024v9AXtyq2nsu003d.cs High entropy of concatenated method names: '#=qBeOBlH6CwHFnQdZWWBgZ_pemudZ6CfCVcfOQtgpeG$Y=', '#=q5v5cLSMFBaxiTtOEjscx86gN2ozXlfytiL6UmXnyWtg=', '#=q_XA5h2lVGHLcY9dK754wKGrOjAm6aBbwPxcUJXgJThJUz83kMbCL53G5uuOLP6Rq', '#=qIFfr$DrKqIieRc688$vylAlBsEnx9Z3$TxvrDsPURfM=', '#=qejgvNXJQvgM2GomZsygLjreyguSPQ29pQHqjR_a0dWk=', '#=qCGokdf0OOxeMJLDkXSfc3NPmwygIQ29RjKQWj$wbNGB9C1pPgma_891QiNyTRXcA', '#=qDqyUVyJLXCtYqhZ0$opqkomqhUBn2WCeEEvGAXlNQ$I=', '#=qdImPAY1o3YhbLtukwCQ91cISaeIEWRKSYrGZ3dTVnkY=', '#=qza7O1AHrroJC7yRIJz4wINR_Sgo4hDpQrj_OYfIrlJE=', '#=q6Ct3QmvVLFC7my$dL1uEiHGmXJ5qCuK4WIhDwfhPTFs='
Source: yBio5dWAOl.exe, u0023u003dqWrm21vQ8CBMZP_RBTwpusAu003du003d.cs High entropy of concatenated method names: '#=qCgU$tDqtOAyz2b$RwfSF7UzBcCAr0rFJWxm16x7Lre0=', '#=qeD3MBfedCIuKIQf9V1u2N3YS4VXE_FOHqw_XAjWtZK8=', '#=q$mvEHEBkZud$AdHPWqsMQnw5Xm5sD4vBSSmqrKuXGOk=', '#=qZaN94n8dM6tBEf$qCdY2kbTZb5BOW8Z134$2tNv7EJs=', '#=qtlZnL8mho$rv1eTFz0Mw9UYFC_yCabEZ0xtVePn6wR5aSHE7ti3UfKg2l7D0_xk8', '#=qVS$QmQjvFfsXSqQAKGSl6HGbkse2SG0XCab4upVjtRJkvhTEk$oIS2I9Zja7id1Q', '#=qxJg7RxTW1v5mnt12xXeJiYJv_bcctbtL2BCD5MjDi45Hlz6t8vwDNTv1Rv7tgIct', '#=qp$ZVC1r9spi890l$D7IwEd3faoKeWHvv42mVq8wIIWM=', '#=qCoWHlVuoVRMkOzC7RZubJCslkxaEWn9yZiIydECf69$ktj0IPD5wAwC2H5Cc8C$L', '#=qqs1moO$mYaS72OXOWe0Z6GycslEb6e9Ipoy7ppW0O5abIp05ajv8doqdJZHlN3cK'
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqJT4I5hOweIku0024xYFEeDszbikglXCuquUdu0024v9AXtyq2nsu003d.cs High entropy of concatenated method names: '#=qBeOBlH6CwHFnQdZWWBgZ_pemudZ6CfCVcfOQtgpeG$Y=', '#=q5v5cLSMFBaxiTtOEjscx86gN2ozXlfytiL6UmXnyWtg=', '#=q_XA5h2lVGHLcY9dK754wKGrOjAm6aBbwPxcUJXgJThJUz83kMbCL53G5uuOLP6Rq', '#=qIFfr$DrKqIieRc688$vylAlBsEnx9Z3$TxvrDsPURfM=', '#=qejgvNXJQvgM2GomZsygLjreyguSPQ29pQHqjR_a0dWk=', '#=qCGokdf0OOxeMJLDkXSfc3NPmwygIQ29RjKQWj$wbNGB9C1pPgma_891QiNyTRXcA', '#=qDqyUVyJLXCtYqhZ0$opqkomqhUBn2WCeEEvGAXlNQ$I=', '#=qdImPAY1o3YhbLtukwCQ91cISaeIEWRKSYrGZ3dTVnkY=', '#=qza7O1AHrroJC7yRIJz4wINR_Sgo4hDpQrj_OYfIrlJE=', '#=q6Ct3QmvVLFC7my$dL1uEiHGmXJ5qCuK4WIhDwfhPTFs='
Source: 0.0.yBio5dWAOl.exe.850000.0.unpack, u0023u003dqWrm21vQ8CBMZP_RBTwpusAu003du003d.cs High entropy of concatenated method names: '#=qCgU$tDqtOAyz2b$RwfSF7UzBcCAr0rFJWxm16x7Lre0=', '#=qeD3MBfedCIuKIQf9V1u2N3YS4VXE_FOHqw_XAjWtZK8=', '#=q$mvEHEBkZud$AdHPWqsMQnw5Xm5sD4vBSSmqrKuXGOk=', '#=qZaN94n8dM6tBEf$qCdY2kbTZb5BOW8Z134$2tNv7EJs=', '#=qtlZnL8mho$rv1eTFz0Mw9UYFC_yCabEZ0xtVePn6wR5aSHE7ti3UfKg2l7D0_xk8', '#=qVS$QmQjvFfsXSqQAKGSl6HGbkse2SG0XCab4upVjtRJkvhTEk$oIS2I9Zja7id1Q', '#=qxJg7RxTW1v5mnt12xXeJiYJv_bcctbtL2BCD5MjDi45Hlz6t8vwDNTv1Rv7tgIct', '#=qp$ZVC1r9spi890l$D7IwEd3faoKeWHvv42mVq8wIIWM=', '#=qCoWHlVuoVRMkOzC7RZubJCslkxaEWn9yZiIydECf69$ktj0IPD5wAwC2H5Cc8C$L', '#=qqs1moO$mYaS72OXOWe0Z6GycslEb6e9Ipoy7ppW0O5abIp05ajv8doqdJZHlN3cK'

Hooking and other Techniques for Hiding and Protection:

barindex
Hides that the sample has been downloaded from the Internet (zone.identifier)
Source: C:\Users\user\Desktop\yBio5dWAOl.exe File opened: C:\Users\user\Desktop\yBio5dWAOl.exe:Zone.Identifier read attributes | delete Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

Malware Analysis System Evasion:

barindex
Contains long sleeps (>= 3 min)
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Window / User API: foregroundWindowGot 898 Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Window / User API: foregroundWindowGot 429 Jump to behavior
May sleep (evasive loops) to hinder dynamic analysis
Source: C:\Users\user\Desktop\yBio5dWAOl.exe TID: 6944 Thread sleep time: -922337203685477s >= -30000s Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Thread delayed: delay time: 922337203685477 Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process information queried: ProcessInformation Jump to behavior

Anti Debugging:

barindex
Enables debug privileges
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Process token adjusted: Debug Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Memory allocated: page read and write | page guard Jump to behavior
Source: C:\Users\user\Desktop\yBio5dWAOl.exe Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid Jump to behavior

Lowering of HIPS / PFW / Operating System Security Settings:

barindex
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiVirusProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM AntiSpywareProduct
Source: C:\Users\user\Desktop\yBio5dWAOl.exe WMI Queries: IWbemServices::ExecQuery - ROOT\SecurityCenter2 : SELECT DisplayName FROM FirewallProduct

Stealing of Sensitive Information:

barindex
Yara detected Nanocore RAT
Source: Yara match File source: yBio5dWAOl.exe, type: SAMPLE
Source: Yara match File source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY
Source: Yara match File source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE

Remote Access Functionality:

barindex
Detected Nanocore Rat
Source: yBio5dWAOl.exe, 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp String found in binary or memory: NanoCore.ClientPluginHost
Source: yBio5dWAOl.exe String found in binary or memory: NanoCore.ClientPluginHost
Yara detected Nanocore RAT
Source: Yara match File source: yBio5dWAOl.exe, type: SAMPLE
Source: Yara match File source: 00000000.00000000.637615961.0000000000852000.00000002.00020000.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: yBio5dWAOl.exe PID: 6904, type: MEMORY
Source: Yara match File source: 0.0.yBio5dWAOl.exe.850000.0.unpack, type: UNPACKEDPE
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Is Windows Process
  • Number of created Registry Values
  • Number of created Files
  • Visual Basic
  • Delphi
  • Java
  • .Net C# or VB.NET
  • C, C++ or other language
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 381756 Sample: yBio5dWAOl.exe Startdate: 04/04/2021 Architecture: WINDOWS Score: 100 13 view43748.viewdns.net 2->13 17 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->17 19 Malicious sample detected (through community Yara rule) 2->19 21 Antivirus / Scanner detection for submitted sample 2->21 23 6 other signatures 2->23 6 yBio5dWAOl.exe 10 2->6         started        signatures3 process4 dnsIp5 15 view43748.viewdns.net 79.134.225.7, 161, 49733, 49740 FINK-TELECOM-SERVICESCH Switzerland 6->15 11 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 6->11 dropped 25 Hides that the sample has been downloaded from the Internet (zone.identifier) 6->25 file6 signatures7
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
79.134.225.7
view43748.viewdns.net Switzerland
6775 FINK-TELECOM-SERVICESCH true

Contacted Domains

Name IP Active
view43748.viewdns.net 79.134.225.7 true