Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-11-2021 05:01

General

  • Target

    174507f19f9fa0447e601c83c8954f7893a97e5d742e034c77349e1601b31582.exe

  • Size

    664KB

  • MD5

    dcbe45d13cfae7594d7e1543280b2e7f

  • SHA1

    364a8a7ef3a418dab50cfc0e9b73e207cbb2b8bb

  • SHA256

    174507f19f9fa0447e601c83c8954f7893a97e5d742e034c77349e1601b31582

  • SHA512

    48cd6b4c694176c8e51d0216d76bcdbe5bb10a43558e0e950d54cf2636c60e8313715b9e8e558f269f25818c181ffcb36f04dbdd194fece786a3b8780d3de14e

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\174507f19f9fa0447e601c83c8954f7893a97e5d742e034c77349e1601b31582.exe
    "C:\Users\Admin\AppData\Local\Temp\174507f19f9fa0447e601c83c8954f7893a97e5d742e034c77349e1601b31582.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1160

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/1160-128-0x0000000004CF2000-0x0000000004CF3000-memory.dmp
    Filesize

    4KB

  • memory/1160-122-0x00000000021B0000-0x00000000021E9000-memory.dmp
    Filesize

    228KB

  • memory/1160-127-0x0000000004CF0000-0x0000000004CF1000-memory.dmp
    Filesize

    4KB

  • memory/1160-141-0x00000000068E0000-0x00000000068E1000-memory.dmp
    Filesize

    4KB

  • memory/1160-130-0x0000000005200000-0x0000000005201000-memory.dmp
    Filesize

    4KB

  • memory/1160-121-0x0000000000560000-0x00000000006AA000-memory.dmp
    Filesize

    1.3MB

  • memory/1160-123-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1160-131-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
    Filesize

    4KB

  • memory/1160-125-0x0000000004D00000-0x0000000004D01000-memory.dmp
    Filesize

    4KB

  • memory/1160-126-0x0000000004B30000-0x0000000004B5C000-memory.dmp
    Filesize

    176KB

  • memory/1160-140-0x0000000006710000-0x0000000006711000-memory.dmp
    Filesize

    4KB

  • memory/1160-129-0x0000000004CF3000-0x0000000004CF4000-memory.dmp
    Filesize

    4KB

  • memory/1160-139-0x00000000065F0000-0x00000000065F1000-memory.dmp
    Filesize

    4KB

  • memory/1160-118-0x0000000000000000-mapping.dmp
  • memory/1160-124-0x0000000002590000-0x00000000025BE000-memory.dmp
    Filesize

    184KB

  • memory/1160-132-0x0000000005810000-0x0000000005811000-memory.dmp
    Filesize

    4KB

  • memory/1160-133-0x0000000004CF4000-0x0000000004CF6000-memory.dmp
    Filesize

    8KB

  • memory/1160-134-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/1160-135-0x0000000005920000-0x0000000005921000-memory.dmp
    Filesize

    4KB

  • memory/1160-136-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/1160-137-0x0000000006350000-0x0000000006351000-memory.dmp
    Filesize

    4KB

  • memory/1160-138-0x00000000063D0000-0x00000000063D1000-memory.dmp
    Filesize

    4KB

  • memory/2764-117-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/2764-115-0x0000000001E6E000-0x0000000001EDA000-memory.dmp
    Filesize

    432KB

  • memory/2764-116-0x0000000003A00000-0x0000000003ACF000-memory.dmp
    Filesize

    828KB