Analysis

  • max time kernel
    142s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-06-2021 18:59

General

  • Target

    a4d36466a9c1e7a7296c41fbff701c05.dll

  • Size

    736KB

  • MD5

    a4d36466a9c1e7a7296c41fbff701c05

  • SHA1

    651f3e7b5e3c03033da9e942ffc67fde1c1813bb

  • SHA256

    bd09c02a8064de5f44d409eae767cfaa743c154edf967986f87ffb703467cf62

  • SHA512

    8281399aec3656762c0829712d6d85c2d7b1fdcdb200cf38c5b3affb9fc1ee5e961e66716807041c01e2f7a0b350a3b2ea28646b4785936842d769e20e5a1bd2

Malware Config

Extracted

Family

qakbot

Version

402.115

Botnet

obama62

Campaign

1624268905

C2

184.185.103.157:443

24.179.77.236:443

71.41.184.10:3389

95.77.223.148:443

81.97.154.100:443

105.198.236.99:443

86.220.60.247:2222

197.45.110.165:995

149.28.98.196:2222

149.28.98.196:995

149.28.101.90:443

149.28.101.90:8443

149.28.99.97:2222

45.32.211.207:995

45.63.107.192:995

45.63.107.192:443

45.63.107.192:2222

45.32.211.207:2222

207.246.77.75:8443

45.32.211.207:8443

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 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 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn yppynzk /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll\"" /SC ONCE /Z /ST 18:58 /ET 19:10
          4⤵
          • Creates scheduled task(s)
          PID:1576
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {19A161FA-1949-4BF1-A764-952B5CC15B58} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll"
        3⤵
        • Loads dropped DLL
        PID:632

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll
    MD5

    72328efca4d0f9e0ef4311bf93ead541

    SHA1

    17cb389ffac8945911b31bfc141ab59cc103cd49

    SHA256

    dc1e90e0bee0148de63e311637910f46ed23eff6293813501ad2889143a58a42

    SHA512

    2396181573fbbf23d9e364a00a6613ef3b66eff60359231015711875e6582b4c9442005bca01c97d28e7c144fdfa8922480687f8e57b4d264b4001467df03404

  • \Users\Admin\AppData\Local\Temp\a4d36466a9c1e7a7296c41fbff701c05.dll
    MD5

    72328efca4d0f9e0ef4311bf93ead541

    SHA1

    17cb389ffac8945911b31bfc141ab59cc103cd49

    SHA256

    dc1e90e0bee0148de63e311637910f46ed23eff6293813501ad2889143a58a42

    SHA512

    2396181573fbbf23d9e364a00a6613ef3b66eff60359231015711875e6582b4c9442005bca01c97d28e7c144fdfa8922480687f8e57b4d264b4001467df03404

  • memory/632-72-0x0000000000000000-mapping.dmp
  • memory/828-70-0x000007FEFC661000-0x000007FEFC663000-memory.dmp
    Filesize

    8KB

  • memory/828-69-0x0000000000000000-mapping.dmp
  • memory/1576-67-0x0000000000000000-mapping.dmp
  • memory/1652-66-0x00000000750A1000-0x00000000750A3000-memory.dmp
    Filesize

    8KB

  • memory/1652-68-0x0000000000080000-0x00000000000AF000-memory.dmp
    Filesize

    188KB

  • memory/1652-64-0x0000000000000000-mapping.dmp
  • memory/1932-60-0x0000000075A31000-0x0000000075A33000-memory.dmp
    Filesize

    8KB

  • memory/1932-63-0x0000000000160000-0x0000000000161000-memory.dmp
    Filesize

    4KB

  • memory/1932-62-0x0000000075210000-0x0000000075362000-memory.dmp
    Filesize

    1.3MB

  • memory/1932-61-0x0000000075210000-0x000000007523F000-memory.dmp
    Filesize

    188KB

  • memory/1932-59-0x0000000000000000-mapping.dmp