Analysis

  • max time kernel
    122s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2023 15:12

General

  • Target

    e6002162f961fccb720de43120de00d6.exe

  • Size

    1.2MB

  • MD5

    e6002162f961fccb720de43120de00d6

  • SHA1

    230082005dea8730637d0139d65e05a057c47219

  • SHA256

    d7316147eebe9516b3270a0db0f6115946cbf16c7481b3a1c3559ba9467ea912

  • SHA512

    e7c1a43b1ccb9575f9c8f4409e5d92c8b4acde473b35dc88bdbb605944d25cbeed2d2c698f5a6e4235cbc6e343d21994b9dac1824e2c1582f4ac2a47251aa4eb

  • SSDEEP

    24576:tDbtrJZ5HAlzh3psjXEuMPBbQCnoVFrfFku+otcsrJsC:nz5glzh52EuMlQLVFrGot1rJs

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/858957282438938625/3kCjQ4X7YW4TW7DTgUtbmym8GLG7UL3BOSBerPvdbDKL2ADHt7MRoSh9PuPhgf460TIb

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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • 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
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6002162f961fccb720de43120de00d6.exe
    "C:\Users\Admin\AppData\Local\Temp\e6002162f961fccb720de43120de00d6.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    397B

    MD5

    f94200f2ab6849986c9541b70ceb5e3f

    SHA1

    a6e6037a289930718c187313555e9446086f8f7d

    SHA256

    6f732ba084c31dac92b79a99b7734b249d327a379a2af374b7f04d496634cb78

    SHA512

    05fdc81a728a077c8d9e721331f4d34276d7afbadafe5074721f90d6ac092d2ea5744fe7da0d8263d5a6394382f5e1be2c32f1a7bd987ae12c169f5be006db7d

  • memory/2052-0-0x00000000001C0000-0x000000000056E000-memory.dmp

    Filesize

    3.7MB

  • memory/2052-2-0x0000000074930000-0x000000007501E000-memory.dmp

    Filesize

    6.9MB

  • memory/2052-1-0x00000000001C0000-0x000000000056E000-memory.dmp

    Filesize

    3.7MB

  • memory/2052-3-0x00000000001C0000-0x000000000056E000-memory.dmp

    Filesize

    3.7MB

  • memory/2052-4-0x0000000002F60000-0x0000000002FA0000-memory.dmp

    Filesize

    256KB

  • memory/2052-56-0x00000000001C0000-0x000000000056E000-memory.dmp

    Filesize

    3.7MB

  • memory/2052-57-0x0000000074930000-0x000000007501E000-memory.dmp

    Filesize

    6.9MB