Analysis

  • max time kernel
    106s
  • max time network
    119s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    24-11-2021 21:20

General

  • Target

    86daffa49c69dac35263c21bcf3cfe7b3f616999238df761c8d82550613641cd.exe

  • Size

    544KB

  • MD5

    9f73c753756805b1e7419813e10a1b01

  • SHA1

    e0baba10d1068172bbd40d47debd08d63f1d31a5

  • SHA256

    86daffa49c69dac35263c21bcf3cfe7b3f616999238df761c8d82550613641cd

  • SHA512

    3598c9be12ef9dc8d5f8e2f0981288ac0e083314bd145360a447a31fc9e313849f15d702d2c2715567311a41bda77a6700d06c1d140099b617901248b7201603

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\86daffa49c69dac35263c21bcf3cfe7b3f616999238df761c8d82550613641cd.exe
    "C:\Users\Admin\AppData\Local\Temp\86daffa49c69dac35263c21bcf3cfe7b3f616999238df761c8d82550613641cd.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:980

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/980-130-0x0000000004C50000-0x0000000004C51000-memory.dmp
    Filesize

    4KB

  • memory/980-124-0x0000000002200000-0x000000000222E000-memory.dmp
    Filesize

    184KB

  • memory/980-132-0x0000000004C53000-0x0000000004C54000-memory.dmp
    Filesize

    4KB

  • memory/980-144-0x0000000006620000-0x0000000006621000-memory.dmp
    Filesize

    4KB

  • memory/980-133-0x0000000005770000-0x0000000005771000-memory.dmp
    Filesize

    4KB

  • memory/980-125-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/980-126-0x0000000002290000-0x00000000022BC000-memory.dmp
    Filesize

    176KB

  • memory/980-134-0x0000000002550000-0x0000000002551000-memory.dmp
    Filesize

    4KB

  • memory/980-127-0x0000000000450000-0x000000000059A000-memory.dmp
    Filesize

    1.3MB

  • memory/980-129-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/980-143-0x0000000006450000-0x0000000006451000-memory.dmp
    Filesize

    4KB

  • memory/980-131-0x0000000004C52000-0x0000000004C53000-memory.dmp
    Filesize

    4KB

  • memory/980-142-0x0000000005D80000-0x0000000005D81000-memory.dmp
    Filesize

    4KB

  • memory/980-121-0x0000000000000000-mapping.dmp
  • memory/980-128-0x00000000005A0000-0x00000000005D9000-memory.dmp
    Filesize

    228KB

  • memory/980-135-0x0000000005160000-0x0000000005161000-memory.dmp
    Filesize

    4KB

  • memory/980-136-0x00000000025D0000-0x00000000025D1000-memory.dmp
    Filesize

    4KB

  • memory/980-137-0x0000000004B70000-0x0000000004B71000-memory.dmp
    Filesize

    4KB

  • memory/980-138-0x0000000004C54000-0x0000000004C56000-memory.dmp
    Filesize

    8KB

  • memory/980-139-0x0000000005430000-0x0000000005431000-memory.dmp
    Filesize

    4KB

  • memory/980-140-0x0000000005520000-0x0000000005521000-memory.dmp
    Filesize

    4KB

  • memory/980-141-0x00000000054F0000-0x00000000054F1000-memory.dmp
    Filesize

    4KB

  • memory/2164-120-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/2164-118-0x0000000002230000-0x000000000229B000-memory.dmp
    Filesize

    428KB

  • memory/2164-119-0x00000000022A0000-0x000000000236F000-memory.dmp
    Filesize

    828KB