Analysis

  • max time kernel
    77s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 02:42 UTC

General

  • Target

    JaffaCakes118_85a3a19ca7a5f7b39fab7afc83796954.exe

  • Size

    703KB

  • MD5

    85a3a19ca7a5f7b39fab7afc83796954

  • SHA1

    7e9a371dcfd218bf516e7e2cb8bfbb2ca4393852

  • SHA256

    07f25494ca96661749014ce8a459a3be96b55302fc8d176b291a15f67d9bc7a4

  • SHA512

    cc894e8b352c55bd6d0f60e14482fca26d4f1db1d0ff0dc6a5ceeb94276a8765a18221cf4af37b2e345dbe53b1c7b2c06ee8281d2a82ffa68595eebd0a1f8aec

  • SSDEEP

    12288:T+RKRkS6YRvN4Qxkgp38Em6Duh5Bdzz5PYMXxk3TFwicANfqVO3mdHysuuWjrfZZ:T+RKRkNYRZtp38R357xsBwjUfqg38HyZ

Malware Config

Extracted

Family

darkcomet

Botnet

DarkComet

C2

decclanyo.no-ip.org:200

Mutex

DC_MUTEX-6UC8UMN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    eHBZFHJcBn1u

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

rc4.plain
1
#KCMDDC51#-890

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85a3a19ca7a5f7b39fab7afc83796954.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85a3a19ca7a5f7b39fab7afc83796954.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2124
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2836
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2388
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1460
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4896
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1528
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\cc.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4016

Network

  • flag-us
    DNS
    tse1.mm.bing.net
    Remote address:
    8.8.8.8:53
    Request
    tse1.mm.bing.net
    IN A
    Response
    tse1.mm.bing.net
    IN CNAME
    mm-mm.bing.net.trafficmanager.net
    mm-mm.bing.net.trafficmanager.net
    IN CNAME
    ax-0001.ax-msedge.net
    ax-0001.ax-msedge.net
    IN A
    150.171.28.10
    ax-0001.ax-msedge.net
    IN A
    150.171.27.10
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239360433543_1F4HJPO10Z3VYH0SK&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239360433543_1F4HJPO10Z3VYH0SK&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 193575
    content-type: image/jpeg
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 83BC3C9EA08F41FE97D572103FD40D93 Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239360265013_1UVY69FM05I7V26BP&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239360265013_1UVY69FM05I7V26BP&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 688476
    content-type: image/jpeg
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 2253713962934A16ACC33030DCE40750 Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239360265014_1I9L6MC65FHDFQ9Z7&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239360265014_1I9L6MC65FHDFQ9Z7&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 195935
    content-type: image/jpeg
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 8E8E4ACFC7404C1EAC61E2C90090F1D9 Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239360433542_1UJC4903W7XNIUU73&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239360433542_1UJC4903W7XNIUU73&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 843567
    content-type: image/jpeg
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 43CAD8934D024CD3AA0BA8D5B3546B8B Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239340418569_13408TD3CSPQQLS8W&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239340418569_13408TD3CSPQQLS8W&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 815230
    content-type: image/jpeg
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    x-cache: CONFIG_NOCACHE
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: A0D8AF190B00498683A2C987D73A1309 Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    GET
    https://tse1.mm.bing.net/th?id=OADD2.10239340418570_1AILBHE008ZL9RHPC&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
    Remote address:
    150.171.28.10:443
    Request
    GET /th?id=OADD2.10239340418570_1AILBHE008ZL9RHPC&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90 HTTP/2.0
    host: tse1.mm.bing.net
    accept: */*
    accept-encoding: gzip, deflate, br
    user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.19041
    Response
    HTTP/2.0 200
    cache-control: public, max-age=2592000
    content-length: 712130
    content-type: image/jpeg
    x-cache: TCP_HIT
    access-control-allow-origin: *
    access-control-allow-headers: *
    access-control-allow-methods: GET, POST, OPTIONS
    timing-allow-origin: *
    report-to: {"group":"network-errors","max_age":604800,"endpoints":[{"url":"https://aefd.nelreports.net/api/report?cat=bingth&ndcParam=QUZE"}]}
    nel: {"report_to":"network-errors","max_age":604800,"success_fraction":0.001,"failure_fraction":1.0}
    accept-ch: Sec-CH-UA-Arch, Sec-CH-UA-Bitness, Sec-CH-UA-Full-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform, Sec-CH-UA-Platform-Version
    x-msedge-ref: Ref A: 6B58C24C43DF469F9041D53085868388 Ref B: LON04EDGE1207 Ref C: 2025-03-22T02:43:30Z
    date: Sat, 22 Mar 2025 02:43:30 GMT
  • flag-us
    DNS
    c.pki.goog
    Remote address:
    8.8.8.8:53
    Request
    c.pki.goog
    IN A
    Response
    c.pki.goog
    IN CNAME
    pki-goog.l.google.com
    pki-goog.l.google.com
    IN A
    142.250.180.3
  • flag-gb
    GET
    http://c.pki.goog/r/r1.crl
    Remote address:
    142.250.180.3:80
    Request
    GET /r/r1.crl HTTP/1.1
    Cache-Control: max-age = 3000
    Connection: Keep-Alive
    Accept: */*
    If-Modified-Since: Thu, 25 Jul 2024 14:48:00 GMT
    User-Agent: Microsoft-CryptoAPI/10.0
    Host: c.pki.goog
    Response
    HTTP/1.1 304 Not Modified
    Date: Sat, 22 Mar 2025 02:39:32 GMT
    Expires: Sat, 22 Mar 2025 03:29:32 GMT
    Age: 263
    Last-Modified: Thu, 25 Jul 2024 14:48:00 GMT
    Cache-Control: public, max-age=3000
    Vary: Accept-Encoding
  • 150.171.28.10:443
    tse1.mm.bing.net
    tls, http2
    1.2kB
    6.9kB
    15
    13
  • 150.171.28.10:443
    tse1.mm.bing.net
    tls, http2
    1.2kB
    6.9kB
    15
    13
  • 150.171.28.10:443
    https://tse1.mm.bing.net/th?id=OADD2.10239340418570_1AILBHE008ZL9RHPC&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90
    tls, http2
    127.9kB
    3.6MB
    2657
    2653

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239360433543_1F4HJPO10Z3VYH0SK&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239360265013_1UVY69FM05I7V26BP&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239360265014_1I9L6MC65FHDFQ9Z7&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239360433542_1UJC4903W7XNIUU73&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239340418569_13408TD3CSPQQLS8W&pid=21.2&c=16&roil=0&roit=0&roir=1&roib=1&w=1920&h=1080&dynsize=1&qlt=90

    HTTP Response

    200

    HTTP Response

    200

    HTTP Response

    200

    HTTP Response

    200

    HTTP Response

    200

    HTTP Request

    GET https://tse1.mm.bing.net/th?id=OADD2.10239340418570_1AILBHE008ZL9RHPC&pid=21.2&c=3&w=1080&h=1920&dynsize=1&qlt=90

    HTTP Response

    200
  • 150.171.28.10:443
    tse1.mm.bing.net
    tls, http2
    1.2kB
    6.9kB
    15
    13
  • 150.171.28.10:443
    tse1.mm.bing.net
    tls, http2
    1.2kB
    6.9kB
    15
    13
  • 142.250.180.3:80
    http://c.pki.goog/r/r1.crl
    http
    476 B
    394 B
    6
    4

    HTTP Request

    GET http://c.pki.goog/r/r1.crl

    HTTP Response

    304
  • 8.8.8.8:53
    tse1.mm.bing.net
    dns
    62 B
    170 B
    1
    1

    DNS Request

    tse1.mm.bing.net

    DNS Response

    150.171.28.10
    150.171.27.10

  • 8.8.8.8:53
    c.pki.goog
    dns
    56 B
    107 B
    1
    1

    DNS Request

    c.pki.goog

    DNS Response

    142.250.180.3

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\cc.vbs

    Filesize

    378B

    MD5

    fa87c36e56bb1f03f973d0125e286a09

    SHA1

    a47c79279865ad55be60eda927f6f0ad45053b7e

    SHA256

    d79606af3b78ec19255b43ac4050b477ee82b2d0f857c3a691111cd9ea667afd

    SHA512

    d867d6937551af2e4e9e18160312885be5659c0cd9f1c9ae112f2b6f887a31486700bb43567d6ef9c0070483c1233f5a5746af37c10b2d0fbc957c360318598a

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

    Filesize

    34KB

    MD5

    e118330b4629b12368d91b9df6488be0

    SHA1

    ce90218c7e3b90df2a3409ec253048bb6472c2fd

    SHA256

    3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

    SHA512

    ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

  • memory/1908-0-0x00000000751D2000-0x00000000751D3000-memory.dmp

    Filesize

    4KB

  • memory/1908-1-0x00000000751D0000-0x0000000075781000-memory.dmp

    Filesize

    5.7MB

  • memory/1908-2-0x00000000751D0000-0x0000000075781000-memory.dmp

    Filesize

    5.7MB

  • memory/1908-27-0x00000000751D0000-0x0000000075781000-memory.dmp

    Filesize

    5.7MB

  • memory/2124-5-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2124-8-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2124-10-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2124-13-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2124-14-0x00000000025B0000-0x00000000025B1000-memory.dmp

    Filesize

    4KB

  • memory/2124-81-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

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