Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    25-11-2021 13:16

General

  • Target

    2935131774dd8590ac80ea196a2643a04a855d0fb110c5bae1add8b5c28d853f.exe

  • Size

    664KB

  • MD5

    287c0c22d5f488c87a58dcab6963a41b

  • SHA1

    1a80562c19b67c81cc256af2e676aa9977415bae

  • SHA256

    2935131774dd8590ac80ea196a2643a04a855d0fb110c5bae1add8b5c28d853f

  • SHA512

    dc6b0d57053165703be7c02e9e35e1b51a5c464eac64443080e337f6a2e6e510ca75cdae6f025c6425836adc94ab55266d753d4d53f8789a6ac877eff9aa4504

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 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\2935131774dd8590ac80ea196a2643a04a855d0fb110c5bae1add8b5c28d853f.exe
    "C:\Users\Admin\AppData\Local\Temp\2935131774dd8590ac80ea196a2643a04a855d0fb110c5bae1add8b5c28d853f.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:592

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/592-130-0x0000000004B80000-0x0000000004B81000-memory.dmp
    Filesize

    4KB

  • memory/592-124-0x0000000002210000-0x000000000223E000-memory.dmp
    Filesize

    184KB

  • memory/592-132-0x00000000023A0000-0x00000000023CC000-memory.dmp
    Filesize

    176KB

  • memory/592-144-0x0000000006790000-0x0000000006791000-memory.dmp
    Filesize

    4KB

  • memory/592-133-0x0000000005080000-0x0000000005081000-memory.dmp
    Filesize

    4KB

  • memory/592-126-0x0000000002070000-0x00000000020A9000-memory.dmp
    Filesize

    228KB

  • memory/592-125-0x0000000000450000-0x00000000004FE000-memory.dmp
    Filesize

    696KB

  • memory/592-134-0x0000000004AB0000-0x0000000004AB1000-memory.dmp
    Filesize

    4KB

  • memory/592-128-0x0000000004B72000-0x0000000004B73000-memory.dmp
    Filesize

    4KB

  • memory/592-129-0x0000000004B73000-0x0000000004B74000-memory.dmp
    Filesize

    4KB

  • memory/592-143-0x00000000065C0000-0x00000000065C1000-memory.dmp
    Filesize

    4KB

  • memory/592-131-0x0000000004B70000-0x0000000004B71000-memory.dmp
    Filesize

    4KB

  • memory/592-142-0x0000000006390000-0x0000000006391000-memory.dmp
    Filesize

    4KB

  • memory/592-121-0x0000000000000000-mapping.dmp
  • memory/592-127-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/592-135-0x0000000005690000-0x0000000005691000-memory.dmp
    Filesize

    4KB

  • memory/592-136-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/592-137-0x00000000057E0000-0x00000000057E1000-memory.dmp
    Filesize

    4KB

  • memory/592-138-0x0000000004B74000-0x0000000004B76000-memory.dmp
    Filesize

    8KB

  • memory/592-139-0x0000000005A40000-0x0000000005A41000-memory.dmp
    Filesize

    4KB

  • memory/592-140-0x0000000006100000-0x0000000006101000-memory.dmp
    Filesize

    4KB

  • memory/592-141-0x00000000061A0000-0x00000000061A1000-memory.dmp
    Filesize

    4KB

  • memory/3620-120-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/3620-118-0x0000000001FDE000-0x000000000204A000-memory.dmp
    Filesize

    432KB

  • memory/3620-119-0x0000000003A70000-0x0000000003B3F000-memory.dmp
    Filesize

    828KB