Analysis

  • max time kernel
    595s
  • max time network
    598s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-12-2021 21:57

General

  • Target

    second_stage1.bin.dll

  • Size

    664KB

  • MD5

    60d10d0aa07877496fc18e82b540abdc

  • SHA1

    b540af55ae7f5f239104a9586aa58d3288e7ac56

  • SHA256

    1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

  • SHA512

    9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

Malware Config

Extracted

Family

qakbot

Version

403.10

Botnet

cullinan

Campaign

1640084934

C2

95.5.133.68:995

188.159.122.122:443

140.82.49.12:443

32.221.229.7:443

24.152.219.253:995

31.35.28.29:443

96.37.113.36:993

109.12.111.14:443

14.96.72.249:61202

93.48.80.198:995

45.9.20.200:2211

24.95.61.62:443

79.167.192.206:995

37.210.226.125:61202

103.139.242.30:995

70.163.1.219:443

114.79.148.170:443

63.153.187.104:443

103.143.8.71:6881

24.53.49.240:443

Attributes
  • salt

    jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Windows security bypass 2 TTPs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 6 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 63 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3064
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2420
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn mffpbrq /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll\"" /SC ONCE /Z /ST 19:03 /ET 19:15
          4⤵
          • Creates scheduled task(s)
          PID:3912
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:3972
        • C:\Windows\system32\reg.exe
          C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Ilvimh" /d "0"
          4⤵
            PID:1156
          • C:\Windows\system32\reg.exe
            C:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Uaiymqeybj" /d "0"
            4⤵
              PID:664

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Defense Evasion

      Disabling Security Tools

      1
      T1089

      Modify Registry

      1
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
        MD5

        60d10d0aa07877496fc18e82b540abdc

        SHA1

        b540af55ae7f5f239104a9586aa58d3288e7ac56

        SHA256

        1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

        SHA512

        9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

      • \Users\Admin\AppData\Local\Temp\second_stage1.bin.dll
        MD5

        60d10d0aa07877496fc18e82b540abdc

        SHA1

        b540af55ae7f5f239104a9586aa58d3288e7ac56

        SHA256

        1e7ef79feb151b4434c1d03c3729feb259de07f06fdb07efa04ff7df842ec7a6

        SHA512

        9b41be602a514b690664077d5a657604aee448ac0f4c53e56ea79866ed5359d69553e31b4d05efc090ef57487399fadb11443765b234c9f20239b1a341328351

      • memory/664-130-0x0000000000000000-mapping.dmp
      • memory/1156-129-0x0000000000000000-mapping.dmp
      • memory/1476-126-0x0000000003B50000-0x0000000003BCB000-memory.dmp
        Filesize

        492KB

      • memory/1476-124-0x0000000000000000-mapping.dmp
      • memory/1476-127-0x0000000003BD0000-0x0000000003D5E000-memory.dmp
        Filesize

        1.6MB

      • memory/2420-119-0x0000000000000000-mapping.dmp
      • memory/2420-120-0x0000000002800000-0x0000000002821000-memory.dmp
        Filesize

        132KB

      • memory/2420-122-0x0000000002BD0000-0x0000000002BD1000-memory.dmp
        Filesize

        4KB

      • memory/3064-118-0x0000000000400000-0x00000000004A2000-memory.dmp
        Filesize

        648KB

      • memory/3064-115-0x0000000000000000-mapping.dmp
      • memory/3064-116-0x0000000004400000-0x000000000447B000-memory.dmp
        Filesize

        492KB

      • memory/3064-117-0x0000000004480000-0x000000000460E000-memory.dmp
        Filesize

        1.6MB

      • memory/3912-121-0x0000000000000000-mapping.dmp
      • memory/3972-128-0x0000000000000000-mapping.dmp
      • memory/3972-131-0x0000000002C90000-0x0000000002C91000-memory.dmp
        Filesize

        4KB

      • memory/3972-132-0x0000000002C90000-0x0000000002C91000-memory.dmp
        Filesize

        4KB

      • memory/3972-133-0x0000000002800000-0x0000000002821000-memory.dmp
        Filesize

        132KB