Analysis

  • max time kernel
    93s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2024 05:29

General

  • Target

    ONETAP V4 CRACK.exe

  • Size

    274KB

  • MD5

    31732d9535ba2bdb12beeb40a75790de

  • SHA1

    7cce72d5128f33f2a9e894c58d353472bcef27a9

  • SHA256

    26f829868cd841f2da691689045c28b308e1f1c21d5af129c8216dd3cc5a0476

  • SHA512

    705b2a04a5d8afcff83e78fe2daf8adfd9e0e6b146c1799f4b1bd7923fe206cda5ebc6af8a33fb6198c154097e2e1af58f7fb56d1199ad2077afac33edea0302

  • SSDEEP

    6144:xf+BLtABPDpFJAKXYSlrLirJbz3ORA1D0qaR:vFKSlrLiBz1D0R

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/922044577169424395/qwAEIr00IbMp6PeuupxU_XupCXhK82a_lw1-3gBrRFMHaRsff_21yyAHBlGdXbxpacQ_

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\ ONETAP V4 CRACK.exe
    "C:\Users\Admin\AppData\Local\Temp\ ONETAP V4 CRACK.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3924

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    739B

    MD5

    769931470d4c3c83a5c0ad3d10c34ab3

    SHA1

    d388aadce157e64cf95db08d4507b4e8eb635def

    SHA256

    039864c6d59150b6a2617354f983d1f3dccd70988cca6e03e8dbbb6961d15052

    SHA512

    8a02fde21843951eb26ec1e8c2ff9b8da93caaa9a6dcecc334367a6a04a21d4061e695516a388fba9a01f5a3d04c70dc6d2361e6bae80eb6720848071741b4ad

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

    1KB

    MD5

    8561cb163424d7b1fa823afbf05c157d

    SHA1

    14a5f5e87a341d5663808395017c63c047853f85

    SHA256

    9bf2e3018dc75dbe50f061a4b027fabb3105c214f79e7c6b9531ab92497a79f4

    SHA512

    5052585764f315a2ff2d17da2361a2eb2432808580bf2ad18eec2c2288d2e101d048776d432e9fac87478ff03349a3c2698b86e9064f1adfe364cf6e1e1535ba

  • memory/3924-0-0x0000000000BC0000-0x0000000000C0A000-memory.dmp
    Filesize

    296KB

  • memory/3924-10-0x00007FFCF2710000-0x00007FFCF31D1000-memory.dmp
    Filesize

    10.8MB

  • memory/3924-11-0x000000001B9B0000-0x000000001B9C0000-memory.dmp
    Filesize

    64KB

  • memory/3924-120-0x000000001C530000-0x000000001C6D9000-memory.dmp
    Filesize

    1.7MB

  • memory/3924-121-0x00007FFCF2710000-0x00007FFCF31D1000-memory.dmp
    Filesize

    10.8MB