Analysis

  • max time kernel
    150s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20220414-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://103.155.93.53/193007648.dat

xlm40.dropper

http://87.236.146.69/193007648.dat

xlm40.dropper

http://94.140.114.172/193007648.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
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\ApplicationReject-689776197.xlsb
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 /s calc
      2⤵
      • Process spawned unexpected child process
      PID:696
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertu.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1592
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertua.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1488
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32 C:\Rujiky\Ubada\Vertub.ooccxx
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:824
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1676

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    962KB

    MD5

    bbc8423b8ddc9956846a00ff406792d2

    SHA1

    774750376f10db1830601f1a0887211efc9d5033

    SHA256

    8b0f97178b6797576f08b70ec6b52aa332b6fc02a165a0a3bf76482a950c8b3b

    SHA512

    a62636a0f1b715db522bea2ac3be2aa2df03668575338d4ad85ba646485b731250c3e28921348533b75f6044bcb8f368fad29e39d87a6afbd8d7792a7a5da867

  • \Rujiky\Ubada\Vertub.ooccxx
    Filesize

    962KB

    MD5

    bbc8423b8ddc9956846a00ff406792d2

    SHA1

    774750376f10db1830601f1a0887211efc9d5033

    SHA256

    8b0f97178b6797576f08b70ec6b52aa332b6fc02a165a0a3bf76482a950c8b3b

    SHA512

    a62636a0f1b715db522bea2ac3be2aa2df03668575338d4ad85ba646485b731250c3e28921348533b75f6044bcb8f368fad29e39d87a6afbd8d7792a7a5da867

  • memory/696-59-0x0000000000000000-mapping.dmp
  • memory/824-69-0x0000000010000000-0x000000001008F000-memory.dmp
    Filesize

    572KB

  • memory/824-65-0x0000000000000000-mapping.dmp
  • memory/1416-57-0x000000007237D000-0x0000000072388000-memory.dmp
    Filesize

    44KB

  • memory/1416-58-0x00000000764C1000-0x00000000764C3000-memory.dmp
    Filesize

    8KB

  • memory/1416-54-0x000000002F0A1000-0x000000002F0A4000-memory.dmp
    Filesize

    12KB

  • memory/1416-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1416-55-0x0000000071391000-0x0000000071393000-memory.dmp
    Filesize

    8KB

  • memory/1488-63-0x0000000000000000-mapping.dmp
  • memory/1592-61-0x0000000000000000-mapping.dmp
  • memory/1676-75-0x0000000000000000-mapping.dmp
  • memory/1676-77-0x000000006C401000-0x000000006C403000-memory.dmp
    Filesize

    8KB

  • memory/1676-78-0x0000000000140000-0x00000000001CF000-memory.dmp
    Filesize

    572KB