Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2022 18:31

General

  • Target

    ff65b2c8def38b91397b5d647cdf67343e5ad5861384f1153a6f267420cc43d1.exe

  • Size

    4.0MB

  • MD5

    c542d5094d71800d86229dd4ed139072

  • SHA1

    8018686b2fc9884e254b6d2606b8af946d6ae50d

  • SHA256

    ff65b2c8def38b91397b5d647cdf67343e5ad5861384f1153a6f267420cc43d1

  • SHA512

    9b3f479d5f939a584c6e1f553d79139549640b6fdc4b8dd1e0cb72c6f011ddf3563fc0e6826b47809649fcfd2679277a88cb96e706738d5b437e98e2c5fdd6b1

  • SSDEEP

    98304:WBLaX2XjPrbVGbFWMZNA2wITWuXIu/M1vrGp1oVXx:YLaWrh3WNVwWWuz/M1vqpeXx

Malware Config

Extracted

Family

joker

C2

https://htuzi.oss-cn-shanghai.aliyuncs.com

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 5 IoCs
  • joker

    Joker is an Android malware that targets billing and SMS fraud.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff65b2c8def38b91397b5d647cdf67343e5ad5861384f1153a6f267420cc43d1.exe
    "C:\Users\Admin\AppData\Local\Temp\ff65b2c8def38b91397b5d647cdf67343e5ad5861384f1153a6f267420cc43d1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Users\Admin\AppData\Local\Temp\tuzi_nsudo\NSudo.exe
      "C:\Users\Admin\AppData\Local\Temp\tuzi_nsudo\NSudo.exe" -U:S "C:\Users\Admin\AppData\Local\Temp\ff65b2c8def38b91397b5d647cdf67343e5ad5861384f1153a6f267420cc43d1.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:684

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tuzi_nsudo\NSudo.exe

    Filesize

    247KB

    MD5

    5cae01aea8ed390ce9bec17b6c1237e4

    SHA1

    3a80a49efaac5d839400e4fb8f803243fb39a513

    SHA256

    19896a23d7b054625c2f6b1ee1551a0da68ad25cddbb24510a3b74578418e618

    SHA512

    c8e54c92133ba686238ea554c1cd82ba441db5fd4b0cbd5082d5eb4ddfcedd15506b9dac553459d0b2221c75778241f926ed3eef64571e4b1e0eb6f80ff9b481

  • C:\Users\Admin\AppData\Local\Temp\tuzi_nsudo\NSudo.json

    Filesize

    211B

    MD5

    922322fab45a284dbb248760125dfb1c

    SHA1

    120e77b90baa85287b2ee5bc63ff7dcd149767b5

    SHA256

    254beac232a7bb20289b0608db5a0ccc69789fb8befe2bf3c76fa09953eea6f5

    SHA512

    899dc404559518e311343a0a71ef4f88e4820268ff821082400660647259594cb1a088359c75b17f4e0df85ea5ad91e49b3e86f636e95955c2c56f1e667f4aaf

  • memory/4820-132-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/4820-133-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/4820-134-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/4820-135-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/4820-136-0x0000000010000000-0x00000000100BE000-memory.dmp

    Filesize

    760KB

  • memory/4820-138-0x0000000010000000-0x00000000100BE000-memory.dmp

    Filesize

    760KB

  • memory/4820-139-0x0000000010000000-0x00000000100BE000-memory.dmp

    Filesize

    760KB

  • memory/4820-143-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB