Analysis

  • max time kernel
    110s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-11-2021 04:22

General

  • Target

    dfa9c96817dc588064dadbce318dc28b6d227dd01620f578d6908cd250ca764d.exe

  • Size

    664KB

  • MD5

    185374dcdee135f8a97c7cf0b1050741

  • SHA1

    d5e4456aecb78814e256f5919cc77f951b6e5def

  • SHA256

    dfa9c96817dc588064dadbce318dc28b6d227dd01620f578d6908cd250ca764d

  • SHA512

    011f797733d333b6ad201f2bd1e539128886c9c4e4e54af3d4e18f39f196ff99302984b917744415139ea932d1435f7ffdd397498829cd0243744aa650b6d2b3

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\dfa9c96817dc588064dadbce318dc28b6d227dd01620f578d6908cd250ca764d.exe
    "C:\Users\Admin\AppData\Local\Temp\dfa9c96817dc588064dadbce318dc28b6d227dd01620f578d6908cd250ca764d.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4312
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4576

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/4312-116-0x00000000039A0000-0x0000000003A6F000-memory.dmp
    Filesize

    828KB

  • memory/4312-117-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/4312-115-0x0000000001ECE000-0x0000000001F3A000-memory.dmp
    Filesize

    432KB

  • memory/4576-127-0x0000000004B12000-0x0000000004B13000-memory.dmp
    Filesize

    4KB

  • memory/4576-131-0x0000000005710000-0x0000000005711000-memory.dmp
    Filesize

    4KB

  • memory/4576-121-0x00000000005B0000-0x00000000005DB000-memory.dmp
    Filesize

    172KB

  • memory/4576-123-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/4576-124-0x0000000002510000-0x000000000253E000-memory.dmp
    Filesize

    184KB

  • memory/4576-125-0x0000000004B20000-0x0000000004B21000-memory.dmp
    Filesize

    4KB

  • memory/4576-126-0x0000000004B10000-0x0000000004B11000-memory.dmp
    Filesize

    4KB

  • memory/4576-118-0x0000000000000000-mapping.dmp
  • memory/4576-128-0x0000000004B13000-0x0000000004B14000-memory.dmp
    Filesize

    4KB

  • memory/4576-129-0x0000000005020000-0x000000000504C000-memory.dmp
    Filesize

    176KB

  • memory/4576-130-0x0000000005080000-0x0000000005081000-memory.dmp
    Filesize

    4KB

  • memory/4576-122-0x0000000001F70000-0x0000000001FA9000-memory.dmp
    Filesize

    228KB

  • memory/4576-132-0x0000000005740000-0x0000000005741000-memory.dmp
    Filesize

    4KB

  • memory/4576-133-0x0000000004B14000-0x0000000004B16000-memory.dmp
    Filesize

    8KB

  • memory/4576-134-0x0000000005890000-0x0000000005891000-memory.dmp
    Filesize

    4KB

  • memory/4576-135-0x00000000058E0000-0x00000000058E1000-memory.dmp
    Filesize

    4KB

  • memory/4576-136-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/4576-137-0x0000000006240000-0x0000000006241000-memory.dmp
    Filesize

    4KB

  • memory/4576-138-0x00000000062D0000-0x00000000062D1000-memory.dmp
    Filesize

    4KB

  • memory/4576-139-0x00000000063D0000-0x00000000063D1000-memory.dmp
    Filesize

    4KB

  • memory/4576-140-0x0000000006700000-0x0000000006701000-memory.dmp
    Filesize

    4KB

  • memory/4576-141-0x00000000068D0000-0x00000000068D1000-memory.dmp
    Filesize

    4KB