Analysis

  • max time kernel
    154s
  • max time network
    173s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    22-10-2021 18:42

General

  • Target

    03f2f05fd23256e1e87c96107a388aad.exe

  • Size

    653KB

  • MD5

    03f2f05fd23256e1e87c96107a388aad

  • SHA1

    5f04ef9eb70f32a0245d9c752193693ffacf57fc

  • SHA256

    a01644daf56c53fc12d8757a63d9ccf35929e30d17fe6f1076f6320d2e1115f6

  • SHA512

    5e1629fec02855c5a9e464a013bceb004bf46d561323c1fad2672318ce949b8be0399c345d4c71d09bf9073521e38f518517edefc25de259ca2d9f87f9fc9c33

Malware Config

Extracted

Family

redline

Botnet

22.10

C2

185.215.113.17:7700

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

    suricata: ET MALWARE AutoHotkey Downloader Checkin via IPLogger

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03f2f05fd23256e1e87c96107a388aad.exe
    "C:\Users\Admin\AppData\Local\Temp\03f2f05fd23256e1e87c96107a388aad.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4328
    • C:\Users\Admin\AppData\Roaming\wowsfree\ipstersh.exe
      ipstersh.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3108

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\wowsfree\ipstersh.exe
    MD5

    c4d5d13ebf7d05776d60caa9f33428af

    SHA1

    385e771216489a904ceda560d2715a760bfa7451

    SHA256

    391fe7f9cb02a497ee846f1637eb01ca6f3586cadc277bf71074906d5c0d4be1

    SHA512

    689a0e819c00be0b3b74c7fd386597274f44b38ac435c0bdc5db8ba5e51b1ea6a20478131f9c4b6ecafcc724509069e854064b8c128d5adfc19028a86097efed

  • C:\Users\Admin\AppData\Roaming\wowsfree\ipstersh.exe
    MD5

    c4d5d13ebf7d05776d60caa9f33428af

    SHA1

    385e771216489a904ceda560d2715a760bfa7451

    SHA256

    391fe7f9cb02a497ee846f1637eb01ca6f3586cadc277bf71074906d5c0d4be1

    SHA512

    689a0e819c00be0b3b74c7fd386597274f44b38ac435c0bdc5db8ba5e51b1ea6a20478131f9c4b6ecafcc724509069e854064b8c128d5adfc19028a86097efed

  • memory/3108-131-0x0000000005072000-0x0000000005073000-memory.dmp
    Filesize

    4KB

  • memory/3108-142-0x0000000008CF0000-0x0000000008CF1000-memory.dmp
    Filesize

    4KB

  • memory/3108-143-0x0000000008EB0000-0x0000000008EB1000-memory.dmp
    Filesize

    4KB

  • memory/3108-125-0x0000000000400000-0x0000000002F1A000-memory.dmp
    Filesize

    43.1MB

  • memory/3108-124-0x0000000002F20000-0x000000000306A000-memory.dmp
    Filesize

    1.3MB

  • memory/3108-126-0x0000000003080000-0x00000000030AF000-memory.dmp
    Filesize

    188KB

  • memory/3108-127-0x0000000004D70000-0x0000000004D8C000-memory.dmp
    Filesize

    112KB

  • memory/3108-128-0x00000000074F0000-0x00000000074F1000-memory.dmp
    Filesize

    4KB

  • memory/3108-129-0x0000000005020000-0x000000000503A000-memory.dmp
    Filesize

    104KB

  • memory/3108-130-0x0000000005070000-0x0000000005071000-memory.dmp
    Filesize

    4KB

  • memory/3108-144-0x00000000090B0000-0x00000000090B1000-memory.dmp
    Filesize

    4KB

  • memory/3108-121-0x0000000000000000-mapping.dmp
  • memory/3108-135-0x0000000008070000-0x0000000008071000-memory.dmp
    Filesize

    4KB

  • memory/3108-134-0x0000000008040000-0x0000000008041000-memory.dmp
    Filesize

    4KB

  • memory/3108-133-0x00000000079F0000-0x00000000079F1000-memory.dmp
    Filesize

    4KB

  • memory/3108-136-0x0000000008180000-0x0000000008181000-memory.dmp
    Filesize

    4KB

  • memory/3108-137-0x0000000005074000-0x0000000005076000-memory.dmp
    Filesize

    8KB

  • memory/3108-138-0x0000000008200000-0x0000000008201000-memory.dmp
    Filesize

    4KB

  • memory/3108-139-0x00000000086D0000-0x00000000086D1000-memory.dmp
    Filesize

    4KB

  • memory/3108-140-0x0000000008B70000-0x0000000008B71000-memory.dmp
    Filesize

    4KB

  • memory/3108-141-0x0000000008C00000-0x0000000008C01000-memory.dmp
    Filesize

    4KB

  • memory/3108-132-0x0000000005073000-0x0000000005074000-memory.dmp
    Filesize

    4KB

  • memory/4328-119-0x0000000000D70000-0x0000000000E3F000-memory.dmp
    Filesize

    828KB

  • memory/4328-120-0x0000000000400000-0x00000000008D3000-memory.dmp
    Filesize

    4.8MB