Analysis

  • max time kernel
    117s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2024 06:23

General

  • Target

    914350a00cb299d2807c459fd950e750.exe

  • Size

    495KB

  • MD5

    914350a00cb299d2807c459fd950e750

  • SHA1

    8df271a04e4e45e1e6210f1f01b517d71b9236f4

  • SHA256

    228ee56c9ca55a911f1c0789b58050e408d14a7fbc21bb1ef3a41426a2dae840

  • SHA512

    d15f3d2914c28561e4b5f2466f3651e4eba7d175dd76d9232923dccf7d4abf154670991d74c5949c8fe79349808b834ffde8e5833b20ca8d09e955504ad08a06

  • SSDEEP

    6144:dfptJNaTZTXr1u3P55Z9JZ1145i4Hw6a3eOU3gkWtXP6x08lZO8oLCGRcgi6Ov4W:dfpts7hiL9JZ1KB/dDgyHZoLM6zG

Malware Config

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.

  • VMProtect packed file 1 IoCs

    Detects executables packed with VMProtect commercial packer.

  • 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.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\914350a00cb299d2807c459fd950e750.exe
    "C:\Users\Admin\AppData\Local\Temp\914350a00cb299d2807c459fd950e750.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2872

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

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:\ProgramData\44\Process.txt
    Filesize

    258B

    MD5

    60170862076a43edfffbd308928725d7

    SHA1

    bcc89c11b070611f69a7de3e1d573e0373950449

    SHA256

    67ddd5a2e76edb080d3464cad95d8df5aa14f7663275f13ac81160d216048e72

    SHA512

    6ec9daff478fd58e39015dcab6c993d7b3b9cf677e4b599ec4df4a703ac102840030868c05d5f21d1a12e05d4c57326894c21d2ab71ccaf78aac0e690bae4bc9

  • memory/2872-0-0x0000000000300000-0x00000000003EA000-memory.dmp
    Filesize

    936KB

  • memory/2872-1-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp
    Filesize

    9.9MB

  • memory/2872-2-0x000000001AF40000-0x000000001AFC0000-memory.dmp
    Filesize

    512KB

  • memory/2872-4-0x000000001AF40000-0x000000001AFC0000-memory.dmp
    Filesize

    512KB

  • memory/2872-3-0x000000001AF40000-0x000000001AFC0000-memory.dmp
    Filesize

    512KB

  • memory/2872-65-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp
    Filesize

    9.9MB