Analysis

  • max time kernel
    120s
  • max time network
    186s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 17:08

General

  • Target

    qqwN5be4oIxaByX.exe

  • Size

    816KB

  • MD5

    2bea67be8c5cb1d75e1b30306f7b4a88

  • SHA1

    bd2094cfbfb10a266bd888a3c12bccc561186a59

  • SHA256

    699482d44a6cd0c8a5e2c171315d138627e72130d5a3ff9f6bc65b992eb82517

  • SHA512

    5b540816b0913b2600f77252e1e0972f9ace0dd342da84f3bee3a4b14606c59e7076d21995352e352d29f15c547a46fd61c03efc29bdff3d306e6fd5984c1f30

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    SMTP.VIVALDI.NET
  • Port:
    587
  • Username:
    AKASSBABA99@VIVALDI.NET
  • Password:
    #munachimso#

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\qqwN5be4oIxaByX.exe
    "C:\Users\Admin\AppData\Local\Temp\qqwN5be4oIxaByX.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CskrxfA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC0C0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:772
    • C:\Users\Admin\AppData\Local\Temp\qqwN5be4oIxaByX.exe
      "C:\Users\Admin\AppData\Local\Temp\qqwN5be4oIxaByX.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1584 -s 1100
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:432

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC0C0.tmp
    MD5

    4b6ba95fce0fa7983da520a3cd1e20f3

    SHA1

    35ffd38230fd5e87f162393274491aa2ba97f286

    SHA256

    dbd8496ad87d774013445c7595a7a24102598217b4142f370b01abc1ddc2284b

    SHA512

    309941fd6c9add48419f3fe50800dab8988540229cb25965d3ab58fcd1c872224dc1254de36954eea0f6d024b3641db91b2f2e81660f177e714a3bd799911707

  • memory/432-74-0x00000000004E0000-0x00000000004E1000-memory.dmp
    Filesize

    4KB

  • memory/432-73-0x0000000000000000-mapping.dmp
  • memory/772-66-0x0000000000000000-mapping.dmp
  • memory/1032-64-0x0000000001020000-0x0000000001085000-memory.dmp
    Filesize

    404KB

  • memory/1032-65-0x0000000000640000-0x0000000000664000-memory.dmp
    Filesize

    144KB

  • memory/1032-60-0x00000000012B0000-0x00000000012B1000-memory.dmp
    Filesize

    4KB

  • memory/1032-63-0x0000000000390000-0x00000000003AB000-memory.dmp
    Filesize

    108KB

  • memory/1032-62-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
    Filesize

    4KB

  • memory/1584-68-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1584-69-0x000000000041F86E-mapping.dmp
  • memory/1584-70-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1584-72-0x0000000004B20000-0x0000000004B21000-memory.dmp
    Filesize

    4KB