Analysis

  • max time kernel
    149s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    23-06-2022 15:54

General

  • Target

    C.dll

  • Size

    1.1MB

  • MD5

    8b81e6a7702f58b93fdc2b57ab401ffb

  • SHA1

    2990b8adc8891564c404190bedab55df5027da32

  • SHA256

    500f85201bcfc0ae49204bd31ed4f055cac1b0b7f8e74339907f5c14b8e711a8

  • SHA512

    957929d5000d17bd44d9ef21b5b1d6bf3c1e153527000ad545cec7fc8ed9470e15fb4c7316acfd66d3004cc109f2fc483daaebbc27ff1264fc6539c827618659

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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\C.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\C.dll,#1
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:980
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /Z /ST 17:56 /tn lsetlydlgr /ET 18:07 /tr "powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAQwAuAGQAbABsACIA" /SC ONCE
          4⤵
          • Creates scheduled task(s)
          PID:1952
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {5E609F33-84F1-4C58-9272-7B0F155986C5} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1168
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -encodedCommand cgBlAGcAcwB2AHIAMwAyAC4AZQB4AGUAIAAiAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAQwAuAGQAbABsACIA
      2⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:524
      • C:\Windows\system32\regsvr32.exe
        "C:\Windows\system32\regsvr32.exe" C:\Users\Admin\AppData\Local\Temp\C.dll
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1096
        • C:\Windows\SysWOW64\regsvr32.exe
          C:\Users\Admin\AppData\Local\Temp\C.dll
          4⤵
          • Loads dropped DLL
          PID:620

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\C.dll
    Filesize

    1.1MB

    MD5

    8b81e6a7702f58b93fdc2b57ab401ffb

    SHA1

    2990b8adc8891564c404190bedab55df5027da32

    SHA256

    500f85201bcfc0ae49204bd31ed4f055cac1b0b7f8e74339907f5c14b8e711a8

    SHA512

    957929d5000d17bd44d9ef21b5b1d6bf3c1e153527000ad545cec7fc8ed9470e15fb4c7316acfd66d3004cc109f2fc483daaebbc27ff1264fc6539c827618659

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

    1.1MB

    MD5

    8b81e6a7702f58b93fdc2b57ab401ffb

    SHA1

    2990b8adc8891564c404190bedab55df5027da32

    SHA256

    500f85201bcfc0ae49204bd31ed4f055cac1b0b7f8e74339907f5c14b8e711a8

    SHA512

    957929d5000d17bd44d9ef21b5b1d6bf3c1e153527000ad545cec7fc8ed9470e15fb4c7316acfd66d3004cc109f2fc483daaebbc27ff1264fc6539c827618659

  • memory/524-69-0x0000000000000000-mapping.dmp
  • memory/524-70-0x000007FEFB721000-0x000007FEFB723000-memory.dmp
    Filesize

    8KB

  • memory/524-71-0x000007FEF33A0000-0x000007FEF3DC3000-memory.dmp
    Filesize

    10.1MB

  • memory/524-74-0x0000000000980000-0x0000000000A00000-memory.dmp
    Filesize

    512KB

  • memory/524-73-0x0000000000980000-0x0000000000A00000-memory.dmp
    Filesize

    512KB

  • memory/524-72-0x000007FEF2840000-0x000007FEF339D000-memory.dmp
    Filesize

    11.4MB

  • memory/620-83-0x0000000000360000-0x0000000000382000-memory.dmp
    Filesize

    136KB

  • memory/620-85-0x0000000000310000-0x0000000000332000-memory.dmp
    Filesize

    136KB

  • memory/620-84-0x0000000000360000-0x0000000000382000-memory.dmp
    Filesize

    136KB

  • memory/620-82-0x0000000000360000-0x0000000000382000-memory.dmp
    Filesize

    136KB

  • memory/620-81-0x00000000007E0000-0x00000000008ED000-memory.dmp
    Filesize

    1.1MB

  • memory/620-78-0x0000000000000000-mapping.dmp
  • memory/620-86-0x0000000000360000-0x0000000000382000-memory.dmp
    Filesize

    136KB

  • memory/980-64-0x0000000074241000-0x0000000074243000-memory.dmp
    Filesize

    8KB

  • memory/980-68-0x0000000000080000-0x00000000000A2000-memory.dmp
    Filesize

    136KB

  • memory/980-62-0x0000000000000000-mapping.dmp
  • memory/980-66-0x0000000000080000-0x00000000000A2000-memory.dmp
    Filesize

    136KB

  • memory/1096-75-0x0000000000000000-mapping.dmp
  • memory/1672-57-0x00000000002C0000-0x00000000002E2000-memory.dmp
    Filesize

    136KB

  • memory/1672-56-0x0000000000390000-0x000000000049D000-memory.dmp
    Filesize

    1.1MB

  • memory/1672-65-0x00000000002C0000-0x00000000002E2000-memory.dmp
    Filesize

    136KB

  • memory/1672-55-0x0000000075871000-0x0000000075873000-memory.dmp
    Filesize

    8KB

  • memory/1672-61-0x00000000002C0000-0x00000000002E2000-memory.dmp
    Filesize

    136KB

  • memory/1672-60-0x0000000000260000-0x0000000000282000-memory.dmp
    Filesize

    136KB

  • memory/1672-58-0x00000000002C0000-0x00000000002E2000-memory.dmp
    Filesize

    136KB

  • memory/1672-59-0x00000000002C0000-0x00000000002E2000-memory.dmp
    Filesize

    136KB

  • memory/1672-54-0x0000000000000000-mapping.dmp
  • memory/1952-67-0x0000000000000000-mapping.dmp