Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2022 21:33

General

  • Target

    6af5dcd86f242fce001d1f8bec24f65af20420161636bcd8f27abf6373d1b1cd.exe

  • Size

    4.0MB

  • MD5

    ed66a0ef198a1b93fcd7ea90691a74aa

  • SHA1

    3db48debea43bc88e5badfdd89618d51343a78e7

  • SHA256

    6af5dcd86f242fce001d1f8bec24f65af20420161636bcd8f27abf6373d1b1cd

  • SHA512

    0bf0fe2c5d6a58abea71f43cbf8e1ee19da5881790b4abb684cf29aaad9e0c16a45cf83a2f696640433b7ffbe24444bb1f2cf026a05cbd3d85729bd81ec574c8

  • SSDEEP

    98304:WBLaX2XjPrbVGbFWMZNA2wITWuXIu/M1vrGp1oVXt:YLaWrh3WNVwWWuz/M1vqpeXt

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 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6af5dcd86f242fce001d1f8bec24f65af20420161636bcd8f27abf6373d1b1cd.exe
    "C:\Users\Admin\AppData\Local\Temp\6af5dcd86f242fce001d1f8bec24f65af20420161636bcd8f27abf6373d1b1cd.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1044
    • 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\6af5dcd86f242fce001d1f8bec24f65af20420161636bcd8f27abf6373d1b1cd.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:972

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

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

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

    Filesize

    247KB

    MD5

    5cae01aea8ed390ce9bec17b6c1237e4

    SHA1

    3a80a49efaac5d839400e4fb8f803243fb39a513

    SHA256

    19896a23d7b054625c2f6b1ee1551a0da68ad25cddbb24510a3b74578418e618

    SHA512

    c8e54c92133ba686238ea554c1cd82ba441db5fd4b0cbd5082d5eb4ddfcedd15506b9dac553459d0b2221c75778241f926ed3eef64571e4b1e0eb6f80ff9b481

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

    Filesize

    247KB

    MD5

    5cae01aea8ed390ce9bec17b6c1237e4

    SHA1

    3a80a49efaac5d839400e4fb8f803243fb39a513

    SHA256

    19896a23d7b054625c2f6b1ee1551a0da68ad25cddbb24510a3b74578418e618

    SHA512

    c8e54c92133ba686238ea554c1cd82ba441db5fd4b0cbd5082d5eb4ddfcedd15506b9dac553459d0b2221c75778241f926ed3eef64571e4b1e0eb6f80ff9b481

  • memory/972-62-0x000007FEFB821000-0x000007FEFB823000-memory.dmp

    Filesize

    8KB

  • memory/1044-54-0x0000000075071000-0x0000000075073000-memory.dmp

    Filesize

    8KB

  • memory/1044-55-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/1044-56-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/1044-57-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/1044-58-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB

  • memory/1044-65-0x0000000000400000-0x0000000001092000-memory.dmp

    Filesize

    12.6MB