Overview

overview

10

Static

static

10

new winloc...te.exe

windows10-1703-x64

10

Analysis

  • max time kernel
    15s
  • max time network
    24s
  • platform
    windows10-1703_x64
  • resource
    win10-20240214-en
  • resource tags

    arch:x64arch:x86image:win10-20240214-enlocale:en-usos:windows10-1703-x64system
  • submitted
    18-02-2024 09:31

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General

  • Target

    new winlocker buider lite.exe

  • Size

    274KB

  • MD5

    3e54f46726f891cbf75860b18e7c211a

  • SHA1

    8823967efa7b979e34e8b7a0eca529eab4377f17

  • SHA256

    c6bc499a80527fd29ec372ac626ae6ae27776de14ee83b15d37a97236e29465b

  • SHA512

    47597edafa0fdbf54a6f850f964aa1078bb1fa1f1e82673e04af8d12d1c2c4e62f7550ff30b1207698678607cca8045c6b70d30c1ef533e7d4a72e0d044e222f

  • SSDEEP

    6144:of+BLtABPD5lRuZrQWT0IQZQZ9qgMlI1D03wg:SlFK0IQZQXh1DHg

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1137391151696072804/iUyZWW_cx_XI9ln3zsr9LCtIFqjJAXtZ1pVtqyQ0I7Ar3nKxBrgEkQqr9b1pcXmV8sA_

Signatures

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • 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\new winlocker buider lite.exe
    "C:\Users\Admin\AppData\Local\Temp\new winlocker buider lite.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1416

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\ProgramData\44\Process.txt
    Filesize

    1KB

    MD5

    d7504419ead34c94c41bcbfa453f5aed

    SHA1

    c9c71beb211d8a330b74565b857525574382a7c4

    SHA256

    2c34553de4a19571f31227ccc7414861950d34ac5ec0a95a7c28ec1f4e8e5261

    SHA512

    99aef762ec9596d29afc7d32f5a2196c533a824fd70f43bee4f7fd998d0ed7f94dca1c704726fd9b80d1ca18ac114b39ed274287b26b959ac870504fb39ea4f1

    Download Submit
  • C:\ProgramData\44\Process.txt
    Filesize

    1KB

    MD5

    4eac55e44be5748473c976633398f658

    SHA1

    58a6414c2f95756d6dcc475dbebd19c464f6e5f4

    SHA256

    6f08afc8af1e85cab925d6d234979d85da0dd0bae01a20485272e23b361abaca

    SHA512

    d547ed3c9a645f85995b78329014c9265cdbecb05225ceb6e4ac381c1b7cd26ff7796f289461b606a3a79dc0b91e874832d25f8df08de624aaa471deb4af3d8b

    Download Submit
  • memory/1416-0-0x000001F52C1E0000-0x000001F52C22A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1416-18-0x00007FF96D9B0000-0x00007FF96E39C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/1416-19-0x000001F546810000-0x000001F546820000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1416-95-0x00007FF96D9B0000-0x00007FF96E39C000-memory.dmp
    Filesize

    9.9MB

    Download