Analysis

  • max time kernel
    121s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    24-11-2021 23:05

General

  • Target

    482b64b04200b41a4f2d1e996665d7b9b02c2cc29644cb2d9c62178160ed4ac3.exe

  • Size

    543KB

  • MD5

    c105cb833c1b9659d20dc59ce622de4b

  • SHA1

    04bd170ea86e1e05e92f2eaf70e3cf51ed87df5e

  • SHA256

    482b64b04200b41a4f2d1e996665d7b9b02c2cc29644cb2d9c62178160ed4ac3

  • SHA512

    c35459f8b4c77c6dc882761cb41f81143bbb8e78465dab7086ad553f3266d6bdf1faf68c032a0d5c31b807518b61bd76a2443d9543c0c447ecab195a51d1c25f

Malware Config

Extracted

Family

redline

Botnet

25.11

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\482b64b04200b41a4f2d1e996665d7b9b02c2cc29644cb2d9c62178160ed4ac3.exe
    "C:\Users\Admin\AppData\Local\Temp\482b64b04200b41a4f2d1e996665d7b9b02c2cc29644cb2d9c62178160ed4ac3.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:408

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\blair\dipster.exe
    MD5

    257225c69bce80a10227a6d158217989

    SHA1

    eef104788d8ec248357868a1a8005308a900a87c

    SHA256

    3a29db8c7caf9d999a35298da6afcdca99c1b64d6195abecd21962fd15dc4416

    SHA512

    0b5451cb7597e843fb85d8c54cc6808d0a021e0176f0a525a7c2499f99faed5a7074c2884c5e15581a5bfd844f4d088836aac96aab63f3f210034dce66b30e39

  • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
    MD5

    257225c69bce80a10227a6d158217989

    SHA1

    eef104788d8ec248357868a1a8005308a900a87c

    SHA256

    3a29db8c7caf9d999a35298da6afcdca99c1b64d6195abecd21962fd15dc4416

    SHA512

    0b5451cb7597e843fb85d8c54cc6808d0a021e0176f0a525a7c2499f99faed5a7074c2884c5e15581a5bfd844f4d088836aac96aab63f3f210034dce66b30e39

  • memory/408-130-0x0000000005550000-0x0000000005551000-memory.dmp
    Filesize

    4KB

  • memory/408-124-0x00000000004A0000-0x00000000004CB000-memory.dmp
    Filesize

    172KB

  • memory/408-132-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
    Filesize

    4KB

  • memory/408-144-0x0000000006630000-0x0000000006631000-memory.dmp
    Filesize

    4KB

  • memory/408-133-0x0000000005140000-0x0000000005141000-memory.dmp
    Filesize

    4KB

  • memory/408-125-0x00000000004F0000-0x000000000063A000-memory.dmp
    Filesize

    1.3MB

  • memory/408-126-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/408-135-0x00000000049C2000-0x00000000049C3000-memory.dmp
    Filesize

    4KB

  • memory/408-128-0x00000000049D0000-0x00000000049D1000-memory.dmp
    Filesize

    4KB

  • memory/408-129-0x0000000004ED0000-0x0000000004EFC000-memory.dmp
    Filesize

    176KB

  • memory/408-143-0x0000000006460000-0x0000000006461000-memory.dmp
    Filesize

    4KB

  • memory/408-131-0x0000000004FC0000-0x0000000004FC1000-memory.dmp
    Filesize

    4KB

  • memory/408-142-0x0000000005D50000-0x0000000005D51000-memory.dmp
    Filesize

    4KB

  • memory/408-121-0x0000000000000000-mapping.dmp
  • memory/408-127-0x00000000021D0000-0x00000000021FE000-memory.dmp
    Filesize

    184KB

  • memory/408-134-0x00000000049C0000-0x00000000049C1000-memory.dmp
    Filesize

    4KB

  • memory/408-136-0x00000000049C3000-0x00000000049C4000-memory.dmp
    Filesize

    4KB

  • memory/408-137-0x00000000049C4000-0x00000000049C6000-memory.dmp
    Filesize

    8KB

  • memory/408-138-0x0000000005190000-0x0000000005191000-memory.dmp
    Filesize

    4KB

  • memory/408-139-0x0000000005430000-0x0000000005431000-memory.dmp
    Filesize

    4KB

  • memory/408-140-0x00000000054B0000-0x00000000054B1000-memory.dmp
    Filesize

    4KB

  • memory/408-141-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
    Filesize

    4KB

  • memory/3056-120-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/3056-119-0x0000000002370000-0x000000000243F000-memory.dmp
    Filesize

    828KB

  • memory/3056-118-0x00000000022F0000-0x000000000235B000-memory.dmp
    Filesize

    428KB