Analysis

  • max time kernel
    151s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    23-06-2022 15:02

General

  • Target

    A.dll

  • Size

    1.0MB

  • MD5

    aa95079f104db9cf097b37a0275b8d01

  • SHA1

    019c5b1204950d263f308ca737a44692af7a88e5

  • SHA256

    9e806c06eb65dd6e36df8383830cb068f7b345170258070c2806bc8f43dbfe29

  • SHA512

    a7cdf7e6199d18cf2194f79ff53e32c3893f02293fad49c08b137efa79d14285344aafe65564b8d5d940bd83d8be1c81344e30173c340839d343de08b7823edc

Malware Config

Extracted

Family

qakbot

Version

403.780

Botnet

AA

Campaign

1655971687

C2

38.70.253.226:2222

47.23.89.60:993

120.150.218.241:995

117.248.109.38:21

37.34.253.233:443

86.132.14.70:2078

111.125.245.116:995

217.165.85.191:993

176.45.232.204:995

5.32.41.45:443

93.48.80.198:995

100.38.242.113:995

94.59.252.166:2222

74.14.5.179:2222

71.13.93.154:2222

193.253.44.249:2222

108.60.213.141:443

45.241.231.78:993

217.128.122.65:2222

40.134.246.185:995

Attributes
  • salt

    jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\A.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\A.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /Z /ST 17:04 /tn ywytfogef /ET 17:15 /tr "powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAQQAuAGQAbABsACIA" /SC ONCE
          4⤵
          • Creates scheduled task(s)
          PID:1528
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {71B6F584-9A77-4B03-9DAA-A81BE93A33A4} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAQQAuAGQAbABsACIA
      2⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\system32\regsvr32.exe
        "C:\Windows\system32\regsvr32.exe" C:\Users\Admin\AppData\Local\Temp\A.dll
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:832
        • C:\Windows\SysWOW64\regsvr32.exe
          C:\Users\Admin\AppData\Local\Temp\A.dll
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1892
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            5⤵
            • Modifies data under HKEY_USERS
            PID:900

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\A.dll
    Filesize

    1.0MB

    MD5

    aa95079f104db9cf097b37a0275b8d01

    SHA1

    019c5b1204950d263f308ca737a44692af7a88e5

    SHA256

    9e806c06eb65dd6e36df8383830cb068f7b345170258070c2806bc8f43dbfe29

    SHA512

    a7cdf7e6199d18cf2194f79ff53e32c3893f02293fad49c08b137efa79d14285344aafe65564b8d5d940bd83d8be1c81344e30173c340839d343de08b7823edc

  • \Users\Admin\AppData\Local\Temp\A.dll
    Filesize

    1.0MB

    MD5

    aa95079f104db9cf097b37a0275b8d01

    SHA1

    019c5b1204950d263f308ca737a44692af7a88e5

    SHA256

    9e806c06eb65dd6e36df8383830cb068f7b345170258070c2806bc8f43dbfe29

    SHA512

    a7cdf7e6199d18cf2194f79ff53e32c3893f02293fad49c08b137efa79d14285344aafe65564b8d5d940bd83d8be1c81344e30173c340839d343de08b7823edc

  • memory/832-75-0x0000000000000000-mapping.dmp
  • memory/900-89-0x0000000000000000-mapping.dmp
  • memory/916-78-0x000000000130B000-0x000000000132A000-memory.dmp
    Filesize

    124KB

  • memory/916-77-0x0000000001304000-0x0000000001307000-memory.dmp
    Filesize

    12KB

  • memory/916-69-0x0000000000000000-mapping.dmp
  • memory/916-74-0x000000000130B000-0x000000000132A000-memory.dmp
    Filesize

    124KB

  • memory/916-72-0x000007FEF2290000-0x000007FEF2DED000-memory.dmp
    Filesize

    11.4MB

  • memory/916-73-0x0000000001304000-0x0000000001307000-memory.dmp
    Filesize

    12KB

  • memory/916-71-0x000007FEF2DF0000-0x000007FEF3813000-memory.dmp
    Filesize

    10.1MB

  • memory/916-70-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp
    Filesize

    8KB

  • memory/1528-67-0x0000000000000000-mapping.dmp
  • memory/1608-62-0x0000000000000000-mapping.dmp
  • memory/1608-64-0x00000000741F1000-0x00000000741F3000-memory.dmp
    Filesize

    8KB

  • memory/1608-66-0x0000000000080000-0x00000000000A2000-memory.dmp
    Filesize

    136KB

  • memory/1608-68-0x0000000000080000-0x00000000000A2000-memory.dmp
    Filesize

    136KB

  • memory/1892-86-0x0000000000230000-0x0000000000252000-memory.dmp
    Filesize

    136KB

  • memory/1892-87-0x00000000001F0000-0x0000000000212000-memory.dmp
    Filesize

    136KB

  • memory/1892-92-0x0000000000230000-0x0000000000252000-memory.dmp
    Filesize

    136KB

  • memory/1892-88-0x0000000000230000-0x0000000000252000-memory.dmp
    Filesize

    136KB

  • memory/1892-85-0x0000000000230000-0x0000000000252000-memory.dmp
    Filesize

    136KB

  • memory/1892-84-0x0000000000230000-0x0000000000252000-memory.dmp
    Filesize

    136KB

  • memory/1892-83-0x0000000000B30000-0x0000000000C3D000-memory.dmp
    Filesize

    1.1MB

  • memory/1892-80-0x0000000000000000-mapping.dmp
  • memory/1912-56-0x00000000008D0000-0x00000000009DD000-memory.dmp
    Filesize

    1.1MB

  • memory/1912-57-0x0000000000760000-0x0000000000782000-memory.dmp
    Filesize

    136KB

  • memory/1912-59-0x0000000000760000-0x0000000000782000-memory.dmp
    Filesize

    136KB

  • memory/1912-58-0x0000000000760000-0x0000000000782000-memory.dmp
    Filesize

    136KB

  • memory/1912-65-0x0000000000760000-0x0000000000782000-memory.dmp
    Filesize

    136KB

  • memory/1912-54-0x0000000000000000-mapping.dmp
  • memory/1912-60-0x00000000006B0000-0x00000000006D2000-memory.dmp
    Filesize

    136KB

  • memory/1912-55-0x0000000074F91000-0x0000000074F93000-memory.dmp
    Filesize

    8KB

  • memory/1912-61-0x0000000000760000-0x0000000000782000-memory.dmp
    Filesize

    136KB