Analysis

  • max time kernel
    147s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    02-02-2021 00:21

General

  • Target

    21254.jpg.dll

  • Size

    556KB

  • MD5

    5454995814c5c0af5b18d5e49b361d69

  • SHA1

    83e98d7c819a56c240926f8e36534ace3b681490

  • SHA256

    f540357d1b588091c99f739171e8846fb604a5ee0f9a3dd776f5584c023cb4a3

  • SHA512

    6ab4354a76835f0f52e95f83f5d6e768e7c080f7d1f1592e2e4f7aac5bea7375ed0ad735f728d6d63e787660092c399a11b527d44d8d03a2561c797858875976

Malware Config

Extracted

Family

qakbot

Botnet

krk01

Campaign

1611569149

C2

31.5.21.66:995

89.3.198.238:443

202.188.138.162:443

188.24.128.253:443

175.141.219.71:443

151.60.15.183:443

184.189.122.72:443

80.227.5.70:443

140.82.49.12:443

89.211.241.100:995

81.97.154.100:443

77.27.174.49:995

92.154.83.96:2078

42.3.8.54:443

71.187.170.235:443

46.153.36.53:995

71.182.142.63:443

105.186.102.16:443

50.244.112.106:443

78.63.226.32:443

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 2 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\21254.jpg.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\21254.jpg.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1228
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wghkzblq /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\21254.jpg.dll\"" /SC ONCE /Z /ST 00:27 /ET 00:39
          4⤵
          • Creates scheduled task(s)
          PID:1388
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {A28E3D7F-69E5-43ED-988E-3FD3C286100C} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\21254.jpg.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:560
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\21254.jpg.dll"
        3⤵
        • Loads dropped DLL
        PID:992

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\21254.jpg.dll
    MD5

    ab335c2a416383c748615aed31707260

    SHA1

    6afaf5458cd0caef19db7755d5ef8aa7a6f39474

    SHA256

    060fd250d8ef9ae8a143790cbd787ac09516c58ba60eda57aa68b412d58ef2cd

    SHA512

    1acb60cbcb5ecd9280395567670ed965267e7ca5f42df5bac889457d10d122b650c267252e9520b76be814c4414f320ca7cc5eb62bbf7cd970ec2b88cbf161fd

  • \Users\Admin\AppData\Local\Temp\21254.jpg.dll
    MD5

    ab335c2a416383c748615aed31707260

    SHA1

    6afaf5458cd0caef19db7755d5ef8aa7a6f39474

    SHA256

    060fd250d8ef9ae8a143790cbd787ac09516c58ba60eda57aa68b412d58ef2cd

    SHA512

    1acb60cbcb5ecd9280395567670ed965267e7ca5f42df5bac889457d10d122b650c267252e9520b76be814c4414f320ca7cc5eb62bbf7cd970ec2b88cbf161fd

  • memory/560-12-0x0000000000000000-mapping.dmp
  • memory/560-13-0x000007FEFC2C1000-0x000007FEFC2C3000-memory.dmp
    Filesize

    8KB

  • memory/992-15-0x0000000000000000-mapping.dmp
  • memory/1228-6-0x0000000000000000-mapping.dmp
  • memory/1228-8-0x0000000074FC1000-0x0000000074FC3000-memory.dmp
    Filesize

    8KB

  • memory/1228-10-0x00000000000C0000-0x00000000000F5000-memory.dmp
    Filesize

    212KB

  • memory/1228-11-0x00000000000C0000-0x00000000000F5000-memory.dmp
    Filesize

    212KB

  • memory/1388-9-0x0000000000000000-mapping.dmp
  • memory/1956-2-0x0000000000000000-mapping.dmp
  • memory/1956-5-0x0000000000140000-0x0000000000141000-memory.dmp
    Filesize

    4KB

  • memory/1956-4-0x0000000010000000-0x0000000010035000-memory.dmp
    Filesize

    212KB

  • memory/1956-3-0x00000000756A1000-0x00000000756A3000-memory.dmp
    Filesize

    8KB