Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 22:58

General

  • Target

    ApplicationReject-1331512570.xlsb

  • Size

    1.1MB

  • MD5

    42cbc5ddb5557da767eab9cda26e5a2a

  • SHA1

    da84b9331a7c06b5733415023442e3f54e9bf6ac

  • SHA256

    3f3efec4833708030ae62c298c0bf8ffb16233694369eb6d0a9c169c1d89f9c8

  • SHA512

    66e1b92cd5f90967b47db01629c6884d47bc24eeac2070465b3d16587b6b67bb2f6186206c6e9402407f9a4ed360a5023cfa13bf719cd20e5e188e7595fa482f

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://103.155.93.53/694604484.dat

xlm40.dropper

http://87.236.146.69/694604484.dat

xlm40.dropper

http://94.140.114.172/694604484.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-1331512570.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:2996
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 /s calc
      2⤵
      • Process spawned unexpected child process
      PID:3472
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertu.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1324
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertua.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:3112
    • C:\Windows\SYSTEM32\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertub.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3640
      • 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:3500
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2520

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

    d937885cc62beccc3e67bd51fb6f0a2b

    SHA1

    4786c99209232b763430afd68b013a9e1ad9e36e

    SHA256

    2bbed3fb496ef58cbe53caef2b96443aa66b91f79ecc6f612dbe70f1ca9ba1e5

    SHA512

    789e04a822c1d36d9a6c9ff2765be96606fdf98d8144cc153f7558f82247456f7a14ebaa9b721caf7df70fa05ae2de67303b7d00f37f0fce6908874cfc377118

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

    962KB

    MD5

    d937885cc62beccc3e67bd51fb6f0a2b

    SHA1

    4786c99209232b763430afd68b013a9e1ad9e36e

    SHA256

    2bbed3fb496ef58cbe53caef2b96443aa66b91f79ecc6f612dbe70f1ca9ba1e5

    SHA512

    789e04a822c1d36d9a6c9ff2765be96606fdf98d8144cc153f7558f82247456f7a14ebaa9b721caf7df70fa05ae2de67303b7d00f37f0fce6908874cfc377118

  • memory/1324-138-0x0000000000000000-mapping.dmp
  • memory/2520-151-0x0000000000C40000-0x0000000000CCF000-memory.dmp
    Filesize

    572KB

  • memory/2520-150-0x0000000000000000-mapping.dmp
  • memory/2996-130-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
    Filesize

    64KB

  • memory/2996-136-0x00007FF8CDFC0000-0x00007FF8CDFD0000-memory.dmp
    Filesize

    64KB

  • memory/2996-135-0x00007FF8CDFC0000-0x00007FF8CDFD0000-memory.dmp
    Filesize

    64KB

  • memory/2996-132-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
    Filesize

    64KB

  • memory/2996-131-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
    Filesize

    64KB

  • memory/2996-133-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
    Filesize

    64KB

  • memory/2996-134-0x00007FF8D0890000-0x00007FF8D08A0000-memory.dmp
    Filesize

    64KB

  • memory/3112-139-0x0000000000000000-mapping.dmp
  • memory/3472-137-0x0000000000000000-mapping.dmp
  • memory/3500-142-0x0000000000000000-mapping.dmp
  • memory/3500-144-0x0000000010000000-0x000000001008F000-memory.dmp
    Filesize

    572KB

  • memory/3640-140-0x0000000000000000-mapping.dmp