Joe Sandbox Cloud Basic Analysis Report

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Windows Analysis Report
ChromeFIX_errorMEM.exe

Overview

General Information

Sample Name:ChromeFIX_errorMEM.exe
Analysis ID:829699
MD5:74b6b35627f6453d787f1c7ea3b9ec33
SHA1:a9282e204443fed6e0be28e8e2dfe7c927706428
SHA256:51921d13908bd84b1c8fbdd77e6e29d4359ce0fc40857f6f0ad15b1b6ee74730
Tags:exe
Infos:

Detection

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

Signatures

Yara detected RedLine Stealer
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Snort IDS alert for network traffic
Writes to foreign memory regions
Tries to steal Crypto Currency Wallets
Machine Learning detection for sample
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Contains functionality to inject code into remote processes
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
C2 URLs / IPs found in malware configuration
Tries to harvest and steal browser information (history, passwords, etc)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
One or more processes crash
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query locales information (e.g. system language)
May sleep (evasive loops) to hinder dynamic analysis
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found evasive API chain (may stop execution after checking a module file name)
Yara detected Credential Stealer
Contains functionality to dynamically determine API calls
Contains long sleeps (>= 3 min)
Enables debug privileges
Is looking for software installed on the system
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
AV process strings found (often used to terminate AV products)
Sample file is different than original file name gathered from version info
Contains functionality to read the PEB
Detected TCP or UDP traffic on non-standard ports
Checks if the current process is being debugged
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Creates a process in suspended mode (likely to inject code)

Classification

Process Tree

  • System is w10x64
  • ChromeFIX_errorMEM.exe (PID: 5764 cmdline: C:\Users\user\Desktop\ChromeFIX_errorMEM.exe MD5: 74B6B35627F6453D787F1C7EA3B9EC33)
    • conhost.exe (PID: 5772 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • AppLaunch.exe (PID: 5828 cmdline: C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AppLaunch.exe MD5: 6807F903AC06FF7E1670181378690B22)
    • WerFault.exe (PID: 5884 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 5764 -s 132 MD5: 9E2B8ACAD48ECCA55C0230D63623661B)
  • cleanup

Malware Threat Intel

Provided by

NameDescriptionAttributionBlogpost URLsLink
RedLine StealerRedLine Stealer is a malware available on underground forums for sale apparently as standalone ($100/$150 depending on the version) or also on a subscription basis ($100/month). This malware harvests information from browsers such as saved credentials, autocomplete data, and credit card information. A system inventory is also taken when running on a target machine, to include details such as the username, location data, hardware configuration, and information regarding installed security software. More recent versions of RedLine added the ability to steal cryptocurrency. FTP and IM clients are also apparently targeted by this family, and this malware has the ability to upload and download files, execute commands, and periodically send back information about the infected computer.No Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/win.redline_stealer

Malware Configuration

Threatname: RedLine

{"C2 url": ["135.181.173.163:4323"], "Authorization Header": "a909e2aaecf96137978fea4f86400b9b"}

Yara Signatures

PCAP (Network Traffic)

SourceRuleDescriptionAuthorStrings
dump.pcapJoeSecurity_RedLineYara detected RedLine StealerJoe Security

    Memory Dumps

    SourceRuleDescriptionAuthorStrings
    00000002.00000002.304460782.0000000000402000.00000020.00000400.00020000.00000000.sdmpJoeSecurity_RedLineYara detected RedLine StealerJoe Security
      00000000.00000002.247722749.0000000000FE0000.00000004.00000001.01000000.00000003.sdmpJoeSecurity_RedLineYara detected RedLine StealerJoe Security
        00000000.00000003.240337295.0000000000F82000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_RedLineYara detected RedLine StealerJoe Security
          Process Memory Space: AppLaunch.exe PID: 5828JoeSecurity_RedLineYara detected RedLine StealerJoe Security
            Process Memory Space: AppLaunch.exe PID: 5828JoeSecurity_CredentialStealerYara detected Credential StealerJoe Security

              Unpacked PEs

              SourceRuleDescriptionAuthorStrings
              2.2.AppLaunch.exe.400000.0.unpackJoeSecurity_RedLineYara detected RedLine StealerJoe Security
                2.2.AppLaunch.exe.400000.0.unpackMALWARE_Win_RedLineDetects RedLine infostealerditekSHen
                • 0x1a434:$pat14: , CommandLine:
                • 0x134a2:$v2_1: ListOfProcesses
                • 0x13281:$v4_3: base64str
                • 0x13e05:$v4_4: stringKey
                • 0x11b63:$v4_5: BytesToStringConverted
                • 0x10d76:$v4_6: FromBase64
                • 0x12098:$v4_8: procName
                • 0x12814:$v5_5: FileScanning
                • 0x11d6c:$v5_7: RecordHeaderField
                • 0x11a34:$v5_9: BCRYPT_KEY_LENGTHS_STRUCT
                0.3.ChromeFIX_errorMEM.exe.f80000.0.unpackJoeSecurity_RedLineYara detected RedLine StealerJoe Security
                  0.3.ChromeFIX_errorMEM.exe.f80000.0.unpackMALWARE_Win_RedLineDetects RedLine infostealerditekSHen
                  • 0x1a434:$pat14: , CommandLine:
                  • 0x134a2:$v2_1: ListOfProcesses
                  • 0x13281:$v4_3: base64str
                  • 0x13e05:$v4_4: stringKey
                  • 0x11b63:$v4_5: BytesToStringConverted
                  • 0x10d76:$v4_6: FromBase64
                  • 0x12098:$v4_8: procName
                  • 0x12814:$v5_5: FileScanning
                  • 0x11d6c:$v5_7: RecordHeaderField
                  • 0x11a34:$v5_9: BCRYPT_KEY_LENGTHS_STRUCT
                  0.2.ChromeFIX_errorMEM.exe.fd0000.0.unpackJoeSecurity_RedLineYara detected RedLine StealerJoe Security
                    Click to see the 1 entries

                    Sigma Signatures

                    ⊘No Sigma rule has matched

                    Snort Signatures

                    Timestamp:192.168.2.3135.181.173.1634968543232043233 03/19/23-00:27:09.983730
                    SID:2043233
                    Source Port:49685
                    Destination Port:4323
                    Protocol:TCP
                    Classtype:A Network Trojan was detected
                    Timestamp:135.181.173.163192.168.2.34323496852043234 03/19/23-00:27:12.062612
                    SID:2043234
                    Source Port:4323
                    Destination Port:49685
                    Protocol:TCP
                    Classtype:A Network Trojan was detected
                    Timestamp:192.168.2.3135.181.173.1634968543232043231 03/19/23-00:27:21.986883
                    SID:2043231
                    Source Port:49685
                    Destination Port:4323
                    Protocol:TCP
                    Classtype:A Network Trojan was detected

                    Joe Sandbox Signatures

                    Click to jump to signature section

                    Show All Signature Results

                    AV Detection

                    barindex
                    Multi AV Scanner detection for submitted file
                    Source: ChromeFIX_errorMEM.exeReversingLabs: Detection: 38%
                    Source: ChromeFIX_errorMEM.exeVirustotal: Detection: 48%Perma Link
                    Machine Learning detection for sample
                    Source: ChromeFIX_errorMEM.exeJoe Sandbox ML: detected
                    Source: 2.2.AppLaunch.exe.400000.0.unpackMalware Configuration Extractor: RedLine {"C2 url": ["135.181.173.163:4323"], "Authorization Header": "a909e2aaecf96137978fea4f86400b9b"}
                    Source: ChromeFIX_errorMEM.exeStatic PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
                    Source: ChromeFIX_errorMEM.exeStatic PE information: DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE

                    Networking

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