Analysis

  • max time kernel
    100s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    20/10/2020, 23:07

General

  • Target

    doc_pack-616670631.xls

  • Size

    62KB

  • MD5

    4b4d5112a28518693fb254ea267f021f

  • SHA1

    c7628effb6be42dc9975cc2c5267c20f8484d747

  • SHA256

    36c2bf7eca190f7f7d2c22bdb9cf35d02ab75235d5b4245c5df772e01d0edc97

  • SHA512

    60533c4cc0c8d383d255c4575c085215bfcd511375af6483bd8307e0ff35c3ee4b09d2db9066e3d24d4cf8e9b375ac958700aaa0f0cf0f5d4909c26c42222e68

Malware Config

Extracted

Family

qakbot

Botnet

tr01

Campaign

1602688146

C2

73.228.1.246:443

74.109.219.145:443

76.111.128.194:443

90.175.88.99:2222

108.191.28.158:443

68.225.60.77:443

75.136.40.155:443

5.193.181.221:2078

72.204.242.138:20

118.160.162.234:443

68.14.210.246:22

148.101.74.12:443

74.222.204.82:443

96.30.198.161:443

140.82.27.132:443

2.50.131.64:443

45.32.155.12:995

45.63.104.123:443

45.32.165.134:443

217.162.149.212:443

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\doc_pack-616670631.xls
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\COsuv\Wegerb\szvMhegn.exe
      "C:\COsuv\Wegerb\szvMhegn.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\COsuv\Wegerb\szvMhegn.exe
        C:\COsuv\Wegerb\szvMhegn.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1176
      • C:\Users\Admin\AppData\Roaming\Microsoft\Yomlyeyuvkad\acqek.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Yomlyeyuvkad\acqek.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:828
        • C:\Users\Admin\AppData\Roaming\Microsoft\Yomlyeyuvkad\acqek.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Yomlyeyuvkad\acqek.exe /C
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:936
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1272
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn dwekschg /tr "\"C:\COsuv\Wegerb\szvMhegn.exe\" /I dwekschg" /SC ONCE /Z /ST 01:17 /ET 01:29
        3⤵
        • Creates scheduled task(s)
        PID:1916
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {165BABEB-9184-49FA-95F9-D464A22D3010} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\COsuv\Wegerb\szvMhegn.exe
      C:\COsuv\Wegerb\szvMhegn.exe /I dwekschg
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/540-6-0x0000000006100000-0x0000000006104000-memory.dmp

    Filesize

    16KB

  • memory/540-5-0x0000000007100000-0x0000000007104000-memory.dmp

    Filesize

    16KB

  • memory/540-9-0x0000000004EA0000-0x0000000004EA4000-memory.dmp

    Filesize

    16KB

  • memory/828-23-0x0000000000500000-0x0000000000537000-memory.dmp

    Filesize

    220KB

  • memory/936-22-0x0000000002600000-0x0000000002611000-memory.dmp

    Filesize

    68KB

  • memory/1176-13-0x0000000002480000-0x0000000002491000-memory.dmp

    Filesize

    68KB

  • memory/1880-2-0x000007FEF7ED0000-0x000007FEF814A000-memory.dmp

    Filesize

    2.5MB