Overview

overview

10

Static

static

10

SerotoninLoader.exe

windows7-x64

10

SerotoninLoader.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-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:1572

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

    1KB

    MD5

    5bdc3e4c99f00f0bd8f1f9f5ffd0f2b3

    SHA1

    9203a8e49a3b1eeffd7f5dc07ba9735381b7ece7

    SHA256

    d79bab573918c198aa92df6246f7c23ee7e1c525911c1011869806e553d7896e

    SHA512

    85661a178d585b113e65ffddc0f216a4579f737fa3b4b78d2997c0ff5b2c2a92423ce364e8a2cd329bc7e8f096f619308416c37994e3c8053b5eb3472a7aac9a

    Download Submit
  • memory/1572-0-0x00000234C5760000-0x00000234C57AA000-memory.dmp
    Filesize

    296KB

    Download
  • memory/1572-31-0x00007FF8FCFB0000-0x00007FF8FDA71000-memory.dmp
    Filesize

    10.8MB

    Download
  • memory/1572-32-0x00000234C7610000-0x00000234C7620000-memory.dmp
    Filesize

    64KB

    Download
  • memory/1572-122-0x00007FF8FCFB0000-0x00007FF8FDA71000-memory.dmp
    Filesize

    10.8MB

    Download