Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    24-11-2021 23:49

General

  • Target

    09c2c171ed964f94ec01bb7a9341798471daa76b45512567813b1052c042ff24.exe

  • Size

    544KB

  • MD5

    e0db4384fdba5de6cbc8bd670eef43a8

  • SHA1

    d95d202fea5b0818562bc80be9c7beb0ec7b65d1

  • SHA256

    09c2c171ed964f94ec01bb7a9341798471daa76b45512567813b1052c042ff24

  • SHA512

    83421f2165433a110da1aedc5af7a1f4c0665af6226be2645df21973be06d27ac4880041d1fc93b714487f9d824d2b8ccf3a025e4f3b4c1e4c7c0cd5440eabf8

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
  • 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\09c2c171ed964f94ec01bb7a9341798471daa76b45512567813b1052c042ff24.exe
    "C:\Users\Admin\AppData\Local\Temp\09c2c171ed964f94ec01bb7a9341798471daa76b45512567813b1052c042ff24.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3620
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4040

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/3620-119-0x0000000002310000-0x00000000023DF000-memory.dmp
    Filesize

    828KB

  • memory/3620-120-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/3620-118-0x00000000022A0000-0x000000000230C000-memory.dmp
    Filesize

    432KB

  • memory/4040-128-0x0000000004C80000-0x0000000004C81000-memory.dmp
    Filesize

    4KB

  • memory/4040-134-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
    Filesize

    4KB

  • memory/4040-125-0x0000000000450000-0x000000000059A000-memory.dmp
    Filesize

    1.3MB

  • memory/4040-126-0x00000000005A0000-0x00000000005D9000-memory.dmp
    Filesize

    228KB

  • memory/4040-127-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/4040-129-0x0000000004C90000-0x0000000004C91000-memory.dmp
    Filesize

    4KB

  • memory/4040-130-0x0000000004C82000-0x0000000004C83000-memory.dmp
    Filesize

    4KB

  • memory/4040-121-0x0000000000000000-mapping.dmp
  • memory/4040-131-0x0000000004C83000-0x0000000004C84000-memory.dmp
    Filesize

    4KB

  • memory/4040-132-0x0000000002500000-0x000000000252C000-memory.dmp
    Filesize

    176KB

  • memory/4040-133-0x0000000005190000-0x0000000005191000-memory.dmp
    Filesize

    4KB

  • memory/4040-124-0x00000000021A0000-0x00000000021CE000-memory.dmp
    Filesize

    184KB

  • memory/4040-135-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/4040-136-0x00000000058B0000-0x00000000058B1000-memory.dmp
    Filesize

    4KB

  • memory/4040-137-0x00000000058F0000-0x00000000058F1000-memory.dmp
    Filesize

    4KB

  • memory/4040-138-0x0000000004C84000-0x0000000004C86000-memory.dmp
    Filesize

    8KB

  • memory/4040-139-0x0000000005A80000-0x0000000005A81000-memory.dmp
    Filesize

    4KB

  • memory/4040-140-0x0000000005B00000-0x0000000005B01000-memory.dmp
    Filesize

    4KB

  • memory/4040-141-0x0000000005CE0000-0x0000000005CE1000-memory.dmp
    Filesize

    4KB

  • memory/4040-142-0x0000000005E90000-0x0000000005E91000-memory.dmp
    Filesize

    4KB

  • memory/4040-143-0x0000000006580000-0x0000000006581000-memory.dmp
    Filesize

    4KB

  • memory/4040-144-0x0000000006760000-0x0000000006761000-memory.dmp
    Filesize

    4KB