Overview

overview

10

Static

static

10

robux.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    31-01-2024 18:10

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General

  • Target

    robux.exe

  • Size

    274KB

  • MD5

    b3dca103204683157780d5562579d100

  • SHA1

    61a249df0a3ce1849b7047e252a323c9f26e44c4

  • SHA256

    8077c458cca5d446d5699c86d18cd2ed03507f59ab09582a1147e17291f33c65

  • SHA512

    89c4335aafa72a286b34460790abe4aa9e035db269f9b5e451a85c98326aa87b31d60a6742125011a54f421283e11cc5cf56d7fccfdcdff95d36dac21abec556

  • SSDEEP

    6144:Af+BLtABPDOpJTNN6eTSUdZ/pOlYeJqlA1D0FkB:ppYSSUdZ/olYet1DHB

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/915691701547446283/wUW0ZMfS9Ea3nfJC3GBW1nyVurXzKmQnFhIAcuEwGucZF2JJhh8YakLcl2RpJb6iFOek

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\robux.exe
    "C:\Users\Admin\AppData\Local\Temp\robux.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2336

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

    348B

    MD5

    6a41d84e3c9ce26f7ce016fcf640074f

    SHA1

    b7985ea8eae45c46cc55fdd23bd46cfcdb613cd0

    SHA256

    2b040448d58fd2a5940862c65d2946bce473eff4d298f2e0befc3eae6a43e758

    SHA512

    d0fa353c23297146631f5db663324c8caa43673ada991de88c44d254a4009304bc5f47d9b95c1717978207371dfecc14da158e306776dda8e6a925b0137546a9

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

    934B

    MD5

    ef218771839360f7ed0658eedec1cf58

    SHA1

    b5f18e9ebb544549984e8a66f9525bc3faa01b88

    SHA256

    2940d8680212fc4fa173f2e31c1f99f484cb08e4e13f8b83651a55035d41ec28

    SHA512

    b980877a6d61e6e9ba28d6ed59ef2bb971bad9562bfacb8d0966c59380fe327df98c22f18b4c4c8d9baf1d11ceb793dc5f983c5a0f0c103cab36207951db9fdd

    Download Submit
  • memory/2336-0-0x0000015EB3690000-0x0000015EB36DA000-memory.dmp
    Filesize

    296KB

    Download
  • memory/2336-31-0x0000015ECDD60000-0x0000015ECDD70000-memory.dmp
    Filesize

    64KB

    Download
  • memory/2336-30-0x00007FF8985B0000-0x00007FF899072000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/2336-111-0x00007FF8985B0000-0x00007FF899072000-memory.dmp
    Filesize

    10.8MB

    Download