Analysis

  • max time kernel
    110s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    25-11-2021 17:30

General

  • Target

    181170e0f97a67642d7e1bb8f6533b9c89ad009d308532c714ca002783f20333.exe

  • Size

    664KB

  • MD5

    44e3cbde365c0ac4dc0da6398ee90e54

  • SHA1

    9f4afb51eaa11c1726f82ffb74fc85350b228d0c

  • SHA256

    181170e0f97a67642d7e1bb8f6533b9c89ad009d308532c714ca002783f20333

  • SHA512

    420c08a6836e70cc25d541ff4767635cf61215a37e803c2410fe2629b3f396e6f101ccfb179dbe7eab79b678c5e1356365bfaabcb8433e0a93934766add69f14

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\181170e0f97a67642d7e1bb8f6533b9c89ad009d308532c714ca002783f20333.exe
    "C:\Users\Admin\AppData\Local\Temp\181170e0f97a67642d7e1bb8f6533b9c89ad009d308532c714ca002783f20333.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1336

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/1336-130-0x00000000004A0000-0x00000000004CB000-memory.dmp
    Filesize

    172KB

  • memory/1336-124-0x0000000002410000-0x000000000243E000-memory.dmp
    Filesize

    184KB

  • memory/1336-132-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1336-144-0x0000000006770000-0x0000000006771000-memory.dmp
    Filesize

    4KB

  • memory/1336-133-0x0000000004CA4000-0x0000000004CA6000-memory.dmp
    Filesize

    8KB

  • memory/1336-125-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
    Filesize

    4KB

  • memory/1336-126-0x00000000026B0000-0x00000000026DC000-memory.dmp
    Filesize

    176KB

  • memory/1336-134-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
    Filesize

    4KB

  • memory/1336-128-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
    Filesize

    4KB

  • memory/1336-129-0x00000000057C0000-0x00000000057C1000-memory.dmp
    Filesize

    4KB

  • memory/1336-143-0x00000000065A0000-0x00000000065A1000-memory.dmp
    Filesize

    4KB

  • memory/1336-131-0x0000000002070000-0x00000000020A9000-memory.dmp
    Filesize

    228KB

  • memory/1336-142-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
    Filesize

    4KB

  • memory/1336-121-0x0000000000000000-mapping.dmp
  • memory/1336-127-0x00000000051B0000-0x00000000051B1000-memory.dmp
    Filesize

    4KB

  • memory/1336-135-0x0000000004CA2000-0x0000000004CA3000-memory.dmp
    Filesize

    4KB

  • memory/1336-136-0x0000000004CA3000-0x0000000004CA4000-memory.dmp
    Filesize

    4KB

  • memory/1336-137-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/1336-138-0x00000000059E0000-0x00000000059E1000-memory.dmp
    Filesize

    4KB

  • memory/1336-139-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/1336-140-0x0000000005C00000-0x0000000005C01000-memory.dmp
    Filesize

    4KB

  • memory/1336-141-0x0000000005CE0000-0x0000000005CE1000-memory.dmp
    Filesize

    4KB

  • memory/3064-120-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/3064-118-0x0000000001F3E000-0x0000000001FAA000-memory.dmp
    Filesize

    432KB

  • memory/3064-119-0x00000000038D0000-0x000000000399F000-memory.dmp
    Filesize

    828KB