Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2023 02:23

General

  • Target

    c2ade6498bf4fe3991c76104a2d5a8ad880ab4baaf0756f707eb3b22d9734a8f.exe

  • Size

    274KB

  • MD5

    e94364b4239eb39286dd3b07a9ea469c

  • SHA1

    95a3fc71b5a4f63e1ce10c163af55b56f168a6f8

  • SHA256

    c2ade6498bf4fe3991c76104a2d5a8ad880ab4baaf0756f707eb3b22d9734a8f

  • SHA512

    bb924f1c1f8b851c70d5639abed43ed047452bac62580d060229e7a054d5f1be269e2888a3dfe511b434ac5a785dcf37216c95cffd8baaa9432cd930670acc13

  • SSDEEP

    6144:8f+BLtABPDWlR1ZroWT0Ilb5wqlYeJ6lA1D0wIk:RluK0Ilb5/lYed1DMk

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1101119692103491584/GTMNvMSwfNfgMdtSqTcvjCvj1QDXJYPNxW9vEtgHszOELGeSAQDBrIp9Qf7oWif26BJd

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c2ade6498bf4fe3991c76104a2d5a8ad880ab4baaf0756f707eb3b22d9734a8f.exe
    "C:\Users\Admin\AppData\Local\Temp\c2ade6498bf4fe3991c76104a2d5a8ad880ab4baaf0756f707eb3b22d9734a8f.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\44\Process.txt

    Filesize

    1KB

    MD5

    10d4b2f5279240a22e2a1b09590e4420

    SHA1

    cd667609fa059e97b7dafd8d0b0848ad63e02126

    SHA256

    ece21a8ce00e2cf6ac248517ccc065eece7e41d5b45c6d0b3ef1970108ab5993

    SHA512

    0237396af95fb8b2f33878d1c64cc16bce0fcf0b0288fd8f30ac9d3cc58d304cd3effef6d67d1a83967f77def0d7886cff838e08e5b4d1b4dfb25897d7f387da

  • C:\Users\Admin\AppData\Local\44\Process.txt

    Filesize

    1KB

    MD5

    10d4b2f5279240a22e2a1b09590e4420

    SHA1

    cd667609fa059e97b7dafd8d0b0848ad63e02126

    SHA256

    ece21a8ce00e2cf6ac248517ccc065eece7e41d5b45c6d0b3ef1970108ab5993

    SHA512

    0237396af95fb8b2f33878d1c64cc16bce0fcf0b0288fd8f30ac9d3cc58d304cd3effef6d67d1a83967f77def0d7886cff838e08e5b4d1b4dfb25897d7f387da

  • memory/4396-0-0x0000029BBCA70000-0x0000029BBCABA000-memory.dmp

    Filesize

    296KB

  • memory/4396-4-0x0000029BD70D0000-0x0000029BD70E0000-memory.dmp

    Filesize

    64KB

  • memory/4396-3-0x00007FFD094A0000-0x00007FFD09F61000-memory.dmp

    Filesize

    10.8MB

  • memory/4396-120-0x00007FFD094A0000-0x00007FFD09F61000-memory.dmp

    Filesize

    10.8MB