Analysis

  • max time kernel
    132s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    28-04-2021 23:37

General

  • Target

    file.dll

  • Size

    400KB

  • MD5

    3f7b2d6109dc784099ea770e39d5e95d

  • SHA1

    7961db9069d45a8809e7bdbed1a7b0929f137fc1

  • SHA256

    f29a954d34392d8b0d45a0bad49c49b4a5c5ac9f0c8179340f1e7ae8675e5594

  • SHA512

    584c1e20cc6a57cd3c235d3f77a328a8c34ea65278e43d5ef16c601ac98d728e91d08ead4ed04e4890f7217e859ba65fe0d75239b848dddeacb4540735fb4ce1

Malware Config

Extracted

Family

qakbot

Version

401.138

Botnet

biden02

Campaign

1614154620

C2

98.173.34.213:995

160.3.187.114:443

73.25.124.140:2222

24.50.118.93:443

82.127.125.209:990

83.110.109.106:2222

79.129.121.81:995

189.223.234.23:995

125.63.101.62:443

113.22.175.141:443

172.78.30.215:443

47.146.169.85:443

47.22.148.6:443

76.25.142.196:443

78.63.226.32:443

105.198.236.101:443

75.67.192.125:443

176.181.247.197:443

105.96.8.96:443

108.31.15.10:995

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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\file.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\file.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1140
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1620
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn skoebnfwi /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\file.dll\"" /SC ONCE /Z /ST 03:21 /ET 03:33
          4⤵
          • Creates scheduled task(s)
          PID:284
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {21B2513E-4700-4571-92B3-1A8D327ADC88} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\system32\regsvr32.exe
      regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\file.dll"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\SysWOW64\regsvr32.exe
        -s "C:\Users\Admin\AppData\Local\Temp\file.dll"
        3⤵
        • Loads dropped DLL
        PID:1948

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

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Downloads

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

    04f415a3ffdbc8d9c693e1c852f795f3

    SHA1

    0dc02b9b3a6bd0cf20c7a80a9472618897c30050

    SHA256

    b4e239dbc91247fd1dcf350fd7bbf971802597823e396f988e032f11897781a3

    SHA512

    ff4a167d015920c62cc69a934c380335db254b99c8ae3d735b3c3de3c80b947979fabca08f6b6841a45660e6a18f239a29043fd21a2ac9c78db9eeea9663dc0d

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

    04f415a3ffdbc8d9c693e1c852f795f3

    SHA1

    0dc02b9b3a6bd0cf20c7a80a9472618897c30050

    SHA256

    b4e239dbc91247fd1dcf350fd7bbf971802597823e396f988e032f11897781a3

    SHA512

    ff4a167d015920c62cc69a934c380335db254b99c8ae3d735b3c3de3c80b947979fabca08f6b6841a45660e6a18f239a29043fd21a2ac9c78db9eeea9663dc0d

  • memory/284-69-0x0000000000000000-mapping.dmp
  • memory/1140-61-0x0000000000000000-mapping.dmp
  • memory/1140-62-0x0000000076691000-0x0000000076693000-memory.dmp
    Filesize

    8KB

  • memory/1140-63-0x0000000000170000-0x00000000001D6000-memory.dmp
    Filesize

    408KB

  • memory/1140-64-0x0000000010000000-0x0000000010066000-memory.dmp
    Filesize

    408KB

  • memory/1620-67-0x0000000074821000-0x0000000074823000-memory.dmp
    Filesize

    8KB

  • memory/1620-68-0x0000000000130000-0x0000000000165000-memory.dmp
    Filesize

    212KB

  • memory/1620-65-0x0000000000000000-mapping.dmp
  • memory/1640-70-0x0000000000000000-mapping.dmp
  • memory/1920-60-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmp
    Filesize

    8KB

  • memory/1948-73-0x0000000000000000-mapping.dmp