Analysis

  • max time kernel
    110s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-11-2021 06:47

General

  • Target

    d9536b783f045d751ec9f649f12ef79b1287238cfcf85022dd14e0e8ba196f1f.exe

  • Size

    663KB

  • MD5

    9e121e4ce4bea66e6cc93857f15b5de6

  • SHA1

    0c6dac657b3b8483ed85b0325d9b44d91e036f53

  • SHA256

    d9536b783f045d751ec9f649f12ef79b1287238cfcf85022dd14e0e8ba196f1f

  • SHA512

    3f180d291e792cddb0640f1c9ea025c2110f165fbcaa9d6b33316650e431c49a81788375617e598c5d1fe8ef7e85968fafa2083ab24819d51530c9c7945f7074

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\d9536b783f045d751ec9f649f12ef79b1287238cfcf85022dd14e0e8ba196f1f.exe
    "C:\Users\Admin\AppData\Local\Temp\d9536b783f045d751ec9f649f12ef79b1287238cfcf85022dd14e0e8ba196f1f.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Roaming\blair\dipster.exe
      dipster.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1032

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/1032-127-0x0000000004C93000-0x0000000004C94000-memory.dmp
    Filesize

    4KB

  • memory/1032-121-0x0000000002040000-0x000000000206B000-memory.dmp
    Filesize

    172KB

  • memory/1032-129-0x0000000004B10000-0x0000000004B3C000-memory.dmp
    Filesize

    176KB

  • memory/1032-141-0x0000000006760000-0x0000000006761000-memory.dmp
    Filesize

    4KB

  • memory/1032-130-0x00000000051A0000-0x00000000051A1000-memory.dmp
    Filesize

    4KB

  • memory/1032-122-0x0000000002070000-0x00000000020A9000-memory.dmp
    Filesize

    228KB

  • memory/1032-123-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1032-131-0x0000000004BF0000-0x0000000004BF1000-memory.dmp
    Filesize

    4KB

  • memory/1032-126-0x0000000004C92000-0x0000000004C93000-memory.dmp
    Filesize

    4KB

  • memory/1032-125-0x0000000004C90000-0x0000000004C91000-memory.dmp
    Filesize

    4KB

  • memory/1032-140-0x0000000006590000-0x0000000006591000-memory.dmp
    Filesize

    4KB

  • memory/1032-128-0x0000000004CA0000-0x0000000004CA1000-memory.dmp
    Filesize

    4KB

  • memory/1032-139-0x0000000005D60000-0x0000000005D61000-memory.dmp
    Filesize

    4KB

  • memory/1032-118-0x0000000000000000-mapping.dmp
  • memory/1032-124-0x0000000002700000-0x000000000272E000-memory.dmp
    Filesize

    184KB

  • memory/1032-132-0x00000000057B0000-0x00000000057B1000-memory.dmp
    Filesize

    4KB

  • memory/1032-133-0x0000000004C94000-0x0000000004C96000-memory.dmp
    Filesize

    8KB

  • memory/1032-134-0x00000000058C0000-0x00000000058C1000-memory.dmp
    Filesize

    4KB

  • memory/1032-135-0x0000000005900000-0x0000000005901000-memory.dmp
    Filesize

    4KB

  • memory/1032-136-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/1032-137-0x0000000005C70000-0x0000000005C71000-memory.dmp
    Filesize

    4KB

  • memory/1032-138-0x0000000005C40000-0x0000000005C41000-memory.dmp
    Filesize

    4KB

  • memory/2708-117-0x0000000000400000-0x0000000001C5C000-memory.dmp
    Filesize

    24.4MB

  • memory/2708-115-0x0000000001F5E000-0x0000000001FCA000-memory.dmp
    Filesize

    432KB

  • memory/2708-116-0x0000000003A80000-0x0000000003B4F000-memory.dmp
    Filesize

    828KB