Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    25-11-2021 16:45

General

  • Target

    1629cb05e979808c783e15af81a402b56806c7354ad6d40ad25ece9b91b05353.exe

  • Size

    664KB

  • MD5

    cfaa5e874a19d53d5ce7a891b19ac118

  • SHA1

    ccba32b8db6ee40aa674aca6873d114f568dac88

  • SHA256

    1629cb05e979808c783e15af81a402b56806c7354ad6d40ad25ece9b91b05353

  • SHA512

    e856a90977178d1fc19aa9d7e567559a92ff0aed60885bc9d382814d8c10189c55c28ed28423604e0dd2cf6eac8d3b4975b4bee190672ed4a5bc3172d0c6927c

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\1629cb05e979808c783e15af81a402b56806c7354ad6d40ad25ece9b91b05353.exe
    "C:\Users\Admin\AppData\Local\Temp\1629cb05e979808c783e15af81a402b56806c7354ad6d40ad25ece9b91b05353.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1940

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/1940-130-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1940-124-0x00000000021E0000-0x000000000220E000-memory.dmp
    Filesize

    184KB

  • memory/1940-132-0x0000000004A52000-0x0000000004A53000-memory.dmp
    Filesize

    4KB

  • memory/1940-144-0x0000000006690000-0x0000000006691000-memory.dmp
    Filesize

    4KB

  • memory/1940-133-0x0000000004A53000-0x0000000004A54000-memory.dmp
    Filesize

    4KB

  • memory/1940-125-0x0000000004A60000-0x0000000004A61000-memory.dmp
    Filesize

    4KB

  • memory/1940-126-0x00000000049C0000-0x00000000049EC000-memory.dmp
    Filesize

    176KB

  • memory/1940-134-0x00000000055D0000-0x00000000055D1000-memory.dmp
    Filesize

    4KB

  • memory/1940-128-0x0000000000570000-0x00000000006BA000-memory.dmp
    Filesize

    1.3MB

  • memory/1940-129-0x00000000006C0000-0x00000000006F9000-memory.dmp
    Filesize

    228KB

  • memory/1940-143-0x00000000064C0000-0x00000000064C1000-memory.dmp
    Filesize

    4KB

  • memory/1940-131-0x0000000004A50000-0x0000000004A51000-memory.dmp
    Filesize

    4KB

  • memory/1940-142-0x0000000006390000-0x0000000006391000-memory.dmp
    Filesize

    4KB

  • memory/1940-121-0x0000000000000000-mapping.dmp
  • memory/1940-127-0x0000000004F60000-0x0000000004F61000-memory.dmp
    Filesize

    4KB

  • memory/1940-135-0x0000000005600000-0x0000000005601000-memory.dmp
    Filesize

    4KB

  • memory/1940-136-0x0000000005750000-0x0000000005751000-memory.dmp
    Filesize

    4KB

  • memory/1940-137-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/1940-138-0x0000000004A54000-0x0000000004A56000-memory.dmp
    Filesize

    8KB

  • memory/1940-139-0x0000000005A40000-0x0000000005A41000-memory.dmp
    Filesize

    4KB

  • memory/1940-140-0x00000000060F0000-0x00000000060F1000-memory.dmp
    Filesize

    4KB

  • memory/1940-141-0x00000000061A0000-0x00000000061A1000-memory.dmp
    Filesize

    4KB

  • memory/2636-120-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/2636-118-0x0000000001EDE000-0x0000000001F4A000-memory.dmp
    Filesize

    432KB

  • memory/2636-119-0x0000000003AB0000-0x0000000003B7F000-memory.dmp
    Filesize

    828KB