Overview

overview

10

Static

static

10

SerotoninLoader.exe

windows7-x64

10

SerotoninLoader.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24-01-2024 22:15

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General

  • Target

    SerotoninLoader.exe

  • Size

    274KB

  • MD5

    a1e427ad2ef7f222aa66a6256eae9470

  • SHA1

    5bf1775f86b3c20387f164055322692ef1e2a508

  • SHA256

    1ea45c54e59585e1cd3b415c1a8dd4e5e6146559802d55ad00549e88d0dad03c

  • SHA512

    59cd96e21c224301bd9721852c4714436b7896f5cddb55c39715bdfa4b33100a7bc8d86246f2c211e365cab2f8f41acb091ed1089756d9dd24ff0bdf76e46cf7

  • SSDEEP

    6144:of+BLtABPDslRpZrQWT0IQZQZtafTy8lI1D0Qkv:jlmK0IQZQNx1Dov

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1190238303706943558/sspm8U_-iZm0lPr7lzq2HlHtwE1OvN49WbP5Wq0jsesUiJAxFQ_ILy_elOLuM4tFYIXC

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\SerotoninLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\SerotoninLoader.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2400

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\Roaming\44\Process.txt
    Filesize

    380B

    MD5

    613edcb1c63351a8506768e65d82ca1d

    SHA1

    2cb6c80e41362c43ecd32f4684863e47a70a8f35

    SHA256

    910f976e49e94f4e59f3f9a9fc79a61ee8563ed11e8c357d93e19215f8f140eb

    SHA512

    63b546c7d665b957b554b8e822b6b1fe74ca3ca120e0d79e1db0fa4d2d66f87151e5b2a2095edb5d8e0ed880007ef868df5f703e425ce1d7f07000886b8dd8c1

    Download Submit
  • memory/2400-0-0x0000000000260000-0x00000000002AA000-memory.dmp
    Filesize

    296KB

    Download
  • memory/2400-1-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/2400-2-0x000000001B0E0000-0x000000001B160000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2400-48-0x000007FEF5CA0000-0x000007FEF668C000-memory.dmp
    Filesize

    9.9MB

    Download