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Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2025, 01:22

General

  • Target

    082d09d95fdc1a362078d9374662588dbdc8f8e561199e3c8040059f739f77e7.exe

  • Size

    274KB

  • MD5

    cc38ca65b4b44a200e6df763acf832ce

  • SHA1

    2243c93668f421ac5b9bcf2409afd494833000f7

  • SHA256

    082d09d95fdc1a362078d9374662588dbdc8f8e561199e3c8040059f739f77e7

  • SHA512

    a73a4e77565e44e7dc8cca24adf4817da0ca61f8177f6b209e95a32c7868833b7514d10d1acd5a1a0d77288b6634578c77b6627060b96963817fafb387937589

  • SSDEEP

    6144:Cf+BLtABPD345GxbeCpwaUsZ3FVafTrNlI1D0Z2cP:y4sZKaUsZ3sg1DfcP

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1268575223754522654/p3kG7TYiNnRJt6AGaKl6yqWSNq4m8D-z5DmsFHvopaDzLbxf2LlN6fYTIX4FWMVt7UOg

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • 44Caliber family
  • Reads user/profile data of web browsers 3 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\082d09d95fdc1a362078d9374662588dbdc8f8e561199e3c8040059f739f77e7.exe
    "C:\Users\Admin\AppData\Local\Temp\082d09d95fdc1a362078d9374662588dbdc8f8e561199e3c8040059f739f77e7.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    733B

    MD5

    9bccae7c212370a16c050c8688443baa

    SHA1

    750045efa42467adb11ec52961a42e91388e6517

    SHA256

    083baaf7370156405a8a73ee88853cf1cf72392379606977dbb9dc4672ed3eac

    SHA512

    f55348ac5ac7ddc6d5dbb939ed238b4ce0089097f65dbd43070cf6aec8a9efb5ca3ac7a480aa3c3d6e52d7b7744cb2b066966530b9154b0d6cff7914b1f01afc

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

    Filesize

    1KB

    MD5

    be7d176a5ff8daefc4a04339f026650e

    SHA1

    9a5a7c7e2d34a3775bfc79fd59a8e4c82fc2010f

    SHA256

    eaae79946123626ac9d03387aa8c1703a992ff0085273dbfca74acd5aef30926

    SHA512

    73ace7e7eb09d23d89a19b468956b0dc177f06866e956b5258cff50837b8cd43725fa8d125cc829bddd2bb5bbf5f05e90ba962352cbc321d8c15f2bdfd583231

  • memory/2968-0-0x00007FFBA1763000-0x00007FFBA1765000-memory.dmp

    Filesize

    8KB

  • memory/2968-1-0x000001A1674E0000-0x000001A16752A000-memory.dmp

    Filesize

    296KB

  • memory/2968-21-0x00007FFBA1760000-0x00007FFBA2221000-memory.dmp

    Filesize

    10.8MB

  • memory/2968-120-0x00007FFBA1760000-0x00007FFBA2221000-memory.dmp

    Filesize

    10.8MB