Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    09-05-2022 03:19

General

  • Target

    ApplicationReject-689776197.xlsb

  • Size

    1.1MB

  • MD5

    82239992f4dbf4023f54a7cdc456203d

  • SHA1

    703175441fd36823fa5fdc2ed006d24c901004c9

  • SHA256

    cc71ff537d46f1a27ad1e0a43bbb5e1beca407e50bdd35149e1fd0b957a40bd2

  • SHA512

    636f9b11120dddfa449ef5a7995ae749dd38d3c2137167ad21a77aec3c294cdc20f5c9efa1abfdc33776db8c64e42375f755f80da9cae6072c5a6e9e953e0885

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://103.155.93.53/341667610.dat

xlm40.dropper

http://87.236.146.69/341667610.dat

xlm40.dropper

http://94.140.114.172/341667610.dat

Extracted

Family

qakbot

Version

403.573

Botnet

obama180

Campaign

1650959141

C2

2.50.4.57:443

85.246.82.244:443

121.7.223.59:2222

197.161.137.67:993

38.70.253.226:2222

47.23.89.62:993

172.114.160.81:443

75.99.168.194:443

82.152.39.39:443

108.60.213.141:443

148.64.96.100:443

167.86.191.84:443

187.207.47.198:61202

103.107.113.120:443

203.122.46.130:443

106.51.48.170:50001

47.23.89.62:995

140.82.49.12:443

102.65.38.74:443

103.246.242.202:443

Attributes
  • salt

    jHxastDcds)oMc=jvh7wdUhxcsdt2

Signatures

  • Process spawned unexpected child process 4 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ApplicationReject-689776197.xlsb"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 /s calc
      2⤵
      • Process spawned unexpected child process
      PID:3980
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertu.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:2852
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertua.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:116
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertub.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:5080
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Rujiky\Ubada\Vertub.ooccxx
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1624
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2416
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:3696

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Rujiky\Ubada\Vertub.ooccxx
      Filesize

      962KB

      MD5

      da389e3ec855a20aefd27cb3f9ac9897

      SHA1

      17965e7d7b7cd8c87ed56c510de69d59f0e0e8ac

      SHA256

      163a1c313b2545b40491d2ca92a684c3e4d0c72ec1d80f7739315c6fa51f64f5

      SHA512

      bce39129fa9527b0a85cdd5892ef976341e49fc98f54914746b595f62e3c960c3bff656515a34dcc63a54295c716c3c52861028803241264587ed3f0919f3a78

    • C:\Rujiky\Ubada\Vertub.ooccxx
      Filesize

      962KB

      MD5

      da389e3ec855a20aefd27cb3f9ac9897

      SHA1

      17965e7d7b7cd8c87ed56c510de69d59f0e0e8ac

      SHA256

      163a1c313b2545b40491d2ca92a684c3e4d0c72ec1d80f7739315c6fa51f64f5

      SHA512

      bce39129fa9527b0a85cdd5892ef976341e49fc98f54914746b595f62e3c960c3bff656515a34dcc63a54295c716c3c52861028803241264587ed3f0919f3a78

    • memory/116-139-0x0000000000000000-mapping.dmp
    • memory/1624-144-0x0000000010000000-0x000000001008F000-memory.dmp
      Filesize

      572KB

    • memory/1624-142-0x0000000000000000-mapping.dmp
    • memory/2416-151-0x0000000001070000-0x00000000010FF000-memory.dmp
      Filesize

      572KB

    • memory/2416-150-0x0000000000000000-mapping.dmp
    • memory/2852-138-0x0000000000000000-mapping.dmp
    • memory/3420-130-0x00007FF854B30000-0x00007FF854B40000-memory.dmp
      Filesize

      64KB

    • memory/3420-136-0x00007FF852740000-0x00007FF852750000-memory.dmp
      Filesize

      64KB

    • memory/3420-135-0x00007FF852740000-0x00007FF852750000-memory.dmp
      Filesize

      64KB

    • memory/3420-134-0x00007FF854B30000-0x00007FF854B40000-memory.dmp
      Filesize

      64KB

    • memory/3420-133-0x00007FF854B30000-0x00007FF854B40000-memory.dmp
      Filesize

      64KB

    • memory/3420-132-0x00007FF854B30000-0x00007FF854B40000-memory.dmp
      Filesize

      64KB

    • memory/3420-131-0x00007FF854B30000-0x00007FF854B40000-memory.dmp
      Filesize

      64KB

    • memory/3980-137-0x0000000000000000-mapping.dmp
    • memory/5080-140-0x0000000000000000-mapping.dmp