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Windows Analysis Report
iuvRyl9i7D

Overview

General Information

Sample Name:iuvRyl9i7D (renamed file extension from none to exe)
Analysis ID:626605
MD5:f7ecd12d134aaf3541396c78337ce672
SHA1:bb41a84d4f5eef537e41cf4bde375c99bff86a04
SHA256:ec2f5710fdf33c7b843829ebd9f088b15141b643b4354dd92d39b6e290ceca70
Tags:32exetrojan
Infos:

Detection

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

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected FormBook
Malicious sample detected (through community Yara rule)
Yara detected AntiVM3
System process connects to network (likely due to code injection or exploit)
Antivirus detection for URL or domain
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Sample uses process hollowing technique
Tries to steal Mail credentials (via file / registry access)
Maps a DLL or memory area into another process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
Performs DNS queries to domains with low reputation
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
.NET source code contains method to dynamically call methods (often used by packers)
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Machine Learning detection for dropped file
Modifies the context of a thread in another process (thread injection)
C2 URLs / IPs found in malware configuration
Adds a directory exclusion to Windows Defender
Uses schtasks.exe or at.exe to add and modify task schedules
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
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
HTTP GET or POST without a user agent
Contains functionality for execution timing, often used to detect debuggers
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Sample file is different than original file name gathered from version info
Drops PE files
Contains functionality to read the PEB
Uses a known web browser user agent for HTTP communication
Checks if the current process is being debugged
Found large amount of non-executed APIs
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

  • System is w10x64
  • iuvRyl9i7D.exe (PID: 4928 cmdline: "C:\Users\user\Desktop\iuvRyl9i7D.exe" MD5: F7ECD12D134AAF3541396C78337CE672)
    • powershell.exe (PID: 6568 cmdline: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\user\AppData\Roaming\dDqpEdJEtzi.exe MD5: DBA3E6449E97D4E3DF64527EF7012A10)
      • conhost.exe (PID: 6600 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • schtasks.exe (PID: 6640 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dDqpEdJEtzi" /XML "C:\Users\user\AppData\Local\Temp\tmp280F.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6748 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • iuvRyl9i7D.exe (PID: 6804 cmdline: C:\Users\user\Desktop\iuvRyl9i7D.exe MD5: F7ECD12D134AAF3541396C78337CE672)
    • iuvRyl9i7D.exe (PID: 6932 cmdline: C:\Users\user\Desktop\iuvRyl9i7D.exe MD5: F7ECD12D134AAF3541396C78337CE672)
      • explorer.exe (PID: 3616 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
        • control.exe (PID: 6628 cmdline: C:\Windows\SysWOW64\control.exe MD5: 40FBA3FBFD5E33E0DE1BA45472FDA66F)
          • cmd.exe (PID: 3984 cmdline: /c copy "C:\Users\user\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\user\AppData\Local\Temp\DB1" /V MD5: F3BDBE3BB6F734E357235F4D5898582D)
            • conhost.exe (PID: 5132 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cleanup
{"C2 list": ["www.admincost.com/n6g4/"], "decoy": ["bw589jumpb.xyz", "lojas-marias.com", "gadgersvip.com", "zeavd.com", "moment4miracles.com", "wildcanetours.com", "executivetravelandlogistics.com", "uspplongee.com", "schilova.online", "smoothie-optics.com", "masterima.net", "kickball.site", "theastralark.com", "nick-sylvestro.com", "properscooter.com", "wave-thermodynamics.com", "bitcollide.com", "xed5555.com", "tsue-sangyo.com", "lucianaejoaoalberto.com", "6084pinelake.info", "plentyhearty.com", "findmylostphone.me", "cliffpassphotographyllc.com", "goddessboi.com", "vulkan-platinum-online.info", "jumpn-giveaway.online", "linymar.xyz", "topgir.site", "oifreunion.com", "lewks.beauty", "servellobody.com", "eagle-five.com", "agelessfish.com", "daulat-kantorbahasamalut.com", "zombarias.com", "chimneyrepairbiloxi.com", "starline-pools.com", "financeenovationinc.com", "sakvoyge.online", "46458.pet", "babyminer.xyz", "alcosto.club", "aeroyogabrasil.com", "cellphstudy.com", "bldh45.xyz", "sguoffcampusrentals.com", "nehalooks.com", "employeebnsf.com", "duniacuan.online", "running-diary.site", "o-taguro.com", "iacli.run", "cariniclinicalconsulting.com", "btcspay.xyz", "funaoka-watanabedent.com", "jamesreadtanusa.com", "dems-clicks.com", "dowsuserc.top", "joseikinmadoguchi.com", "hulizb6.com", "luxurybathshowers.com", "kapamilla.com", "duowb.com"]}
SourceRuleDescriptionAuthorStrings
0000000C.00000002.367415725.0000000000400000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
    0000000C.00000002.367415725.0000000000400000.00000040.00000400.00020000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
    • 0x8c08:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x8fa2:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
    • 0x16345:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
    • 0x15df1:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
    • 0x16447:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
    • 0x165bf:$sequence_4: 5D C3 8D 50 7C 80 FA 07
    • 0x99ba:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
    • 0x1506c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
    • 0xa732:$sequence_7: 66 89 0C 02 5B 8B E5 5D
    • 0x1b987:$sequence_8: 3C 54 74 04 3C 74 75 F4
    • 0x1ca9a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
    0000000C.00000002.367415725.0000000000400000.00000040.00000400.00020000.00000000.sdmpFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
    • 0x18809:$sqlite3step: 68 34 1C 7B E1
    • 0x1891c:$sqlite3step: 68 34 1C 7B E1
    • 0x18838:$sqlite3text: 68 38 2A 90 C5
    • 0x1895d:$sqlite3text: 68 38 2A 90 C5
    • 0x1884b:$sqlite3blob: 68 53 D8 7F 8C
    • 0x18973:$sqlite3blob: 68 53 D8 7F 8C
    00000015.00000002.508372558.0000000000600000.00000040.80000000.00040000.00000000.sdmpJoeSecurity_FormBookYara detected FormBookJoe Security
      00000015.00000002.508372558.0000000000600000.00000040.80000000.00040000.00000000.sdmpFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
      • 0x8c08:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
      • 0x8fa2:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
      • 0x16345:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
      • 0x15df1:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
      • 0x16447:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
      • 0x165bf:$sequence_4: 5D C3 8D 50 7C 80 FA 07
      • 0x99ba:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
      • 0x1506c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
      • 0xa732:$sequence_7: 66 89 0C 02 5B 8B E5 5D
      • 0x1b987:$sequence_8: 3C 54 74 04 3C 74 75 F4
      • 0x1ca9a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
      Click to see the 31 entries
      SourceRuleDescriptionAuthorStrings
      12.0.iuvRyl9i7D.exe.400000.8.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
        12.0.iuvRyl9i7D.exe.400000.8.unpackFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
        • 0x7e08:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
        • 0x81a2:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
        • 0x15545:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
        • 0x14ff1:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
        • 0x15647:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
        • 0x157bf:$sequence_4: 5D C3 8D 50 7C 80 FA 07
        • 0x8bba:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
        • 0x1426c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
        • 0x9932:$sequence_7: 66 89 0C 02 5B 8B E5 5D
        • 0x1ab87:$sequence_8: 3C 54 74 04 3C 74 75 F4
        • 0x1bc9a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00
        12.0.iuvRyl9i7D.exe.400000.8.unpackFormbookdetect Formbook in memoryJPCERT/CC Incident Response Group
        • 0x17a09:$sqlite3step: 68 34 1C 7B E1
        • 0x17b1c:$sqlite3step: 68 34 1C 7B E1
        • 0x17a38:$sqlite3text: 68 38 2A 90 C5
        • 0x17b5d:$sqlite3text: 68 38 2A 90 C5
        • 0x17a4b:$sqlite3blob: 68 53 D8 7F 8C
        • 0x17b73:$sqlite3blob: 68 53 D8 7F 8C
        12.0.iuvRyl9i7D.exe.400000.6.raw.unpackJoeSecurity_FormBookYara detected FormBookJoe Security
          12.0.iuvRyl9i7D.exe.400000.6.raw.unpackFormbook_1autogenerated rule brought to you by yara-signatorFelix Bilstein - yara-signator at cocacoding dot com
          • 0x8c08:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
          • 0x8fa2:$sequence_0: 03 C8 0F 31 2B C1 89 45 FC
          • 0x16345:$sequence_1: 3C 24 0F 84 76 FF FF FF 3C 25 74 94
          • 0x15df1:$sequence_2: 3B 4F 14 73 95 85 C9 74 91
          • 0x16447:$sequence_3: 3C 69 75 44 8B 7D 18 8B 0F
          • 0x165bf:$sequence_4: 5D C3 8D 50 7C 80 FA 07
          • 0x99ba:$sequence_5: 0F BE 5C 0E 01 0F B6 54 0E 02 83 E3 0F C1 EA 06
          • 0x1506c:$sequence_6: 57 89 45 FC 89 45 F4 89 45 F8
          • 0xa732:$sequence_7: 66 89 0C 02 5B 8B E5 5D
          • 0x1b987:$sequence_8: 3C 54 74 04 3C 74 75 F4
          • 0x1ca9a:$sequence_9: 56 68 03 01 00 00 8D 85 95 FE FF FF 6A 00