Analysis

  • max time kernel
    122s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    25-11-2021 16:30

General

  • Target

    d68ff2a97b93e0963d894762a400fb9feccba8f85927ca4f212f49b0197334b5.exe

  • Size

    663KB

  • MD5

    2d989b36edf9695b6f0e10fc9b59b959

  • SHA1

    d42debaac744da4e595741c57a3e5111b955b346

  • SHA256

    d68ff2a97b93e0963d894762a400fb9feccba8f85927ca4f212f49b0197334b5

  • SHA512

    499d9a4ea7a1daa82eeeeefc7e8d4a8fe2178abfcf7987141f4473611c28d0862424bacc157ce3b8ada79d7bc3aef82f4821cf26ee9ce6168b55943b8f0118ff

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\d68ff2a97b93e0963d894762a400fb9feccba8f85927ca4f212f49b0197334b5.exe
    "C:\Users\Admin\AppData\Local\Temp\d68ff2a97b93e0963d894762a400fb9feccba8f85927ca4f212f49b0197334b5.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2616

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/2616-130-0x0000000005040000-0x0000000005041000-memory.dmp
    Filesize

    4KB

  • memory/2616-125-0x00000000020D0000-0x0000000002109000-memory.dmp
    Filesize

    228KB

  • memory/2616-132-0x0000000005650000-0x0000000005651000-memory.dmp
    Filesize

    4KB

  • memory/2616-144-0x0000000006720000-0x0000000006721000-memory.dmp
    Filesize

    4KB

  • memory/2616-133-0x0000000005760000-0x0000000005761000-memory.dmp
    Filesize

    4KB

  • memory/2616-124-0x0000000002060000-0x000000000208B000-memory.dmp
    Filesize

    172KB

  • memory/2616-126-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/2616-134-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/2616-128-0x0000000004B40000-0x0000000004B41000-memory.dmp
    Filesize

    4KB

  • memory/2616-129-0x0000000002380000-0x00000000023AC000-memory.dmp
    Filesize

    176KB

  • memory/2616-143-0x0000000006540000-0x0000000006541000-memory.dmp
    Filesize

    4KB

  • memory/2616-131-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
    Filesize

    4KB

  • memory/2616-142-0x0000000005D10000-0x0000000005D11000-memory.dmp
    Filesize

    4KB

  • memory/2616-121-0x0000000000000000-mapping.dmp
  • memory/2616-127-0x00000000022C0000-0x00000000022EE000-memory.dmp
    Filesize

    184KB

  • memory/2616-136-0x0000000004B32000-0x0000000004B33000-memory.dmp
    Filesize

    4KB

  • memory/2616-135-0x0000000004B30000-0x0000000004B31000-memory.dmp
    Filesize

    4KB

  • memory/2616-137-0x0000000004B33000-0x0000000004B34000-memory.dmp
    Filesize

    4KB

  • memory/2616-138-0x0000000004B34000-0x0000000004B36000-memory.dmp
    Filesize

    8KB

  • memory/2616-139-0x0000000005A40000-0x0000000005A41000-memory.dmp
    Filesize

    4KB

  • memory/2616-140-0x0000000005AC0000-0x0000000005AC1000-memory.dmp
    Filesize

    4KB

  • memory/2616-141-0x0000000005CA0000-0x0000000005CA1000-memory.dmp
    Filesize

    4KB

  • memory/2676-120-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/2676-118-0x0000000001D2E000-0x0000000001D9A000-memory.dmp
    Filesize

    432KB

  • memory/2676-119-0x00000000039D0000-0x0000000003A9F000-memory.dmp
    Filesize

    828KB