Overview

overview

10

Static

static

1

$RECYCLE.B...GOK.js

windows7-x64

10

$RECYCLE.B...GOK.js

windows10-2004-x64

10

$RECYCLE.B...KV.scr

windows7-x64

1

$RECYCLE.B...KV.scr

windows10-2004-x64

1

$RECYCLE.B...XJ.exe

windows7-x64

3

$RECYCLE.B...XJ.exe

windows10-2004-x64

3

$RECYCLE.B...6RL.js

windows7-x64

10

$RECYCLE.B...6RL.js

windows10-2004-x64

10

$RECYCLE.B...IB.exe

windows7-x64

1

$RECYCLE.B...IB.exe

windows10-2004-x64

1

$RECYCLE.B...S1.bat

windows7-x64

7

$RECYCLE.B...S1.bat

windows10-2004-x64

7

pdf-extensions.vbs

windows7-x64

3

pdf-extensions.vbs

windows10-2004-x64

10

Sharing

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General

  • Target

    pdf-extension.vhd

  • Size

    16.0MB

  • Sample

    230331-tgbw8sbd22

  • MD5

    f4de49c946dea5b9557aca693bea6fd4

  • SHA1

    2a598525f8e5f88be0ab1d9cf179915bf07a38cc

  • SHA256

    a858b2b8b4be7cb23e0a7d37a0c08489a6820cb1be5523a7a466014eb994391f

  • SHA512

    063bc71bc324c688dea117bed9e42b0ef3617229a8f5069d7e78f81fbfb32c3e9374424775eb52e551def4723f4dd5697abe29dd2494c4bc0af7dbf79dbb06ef

  • SSDEEP

    24576:lSnSwh/M4YK6dJ5xA8F2nFnHb6T8Ujl6vO01C1GCTsYoQZtlsZdc40QDrUYuGG10:4SwV4kBHdTUwTGTTOWjBiO8pG+

Score
10/10
nanocorevjw0rmkeyloggerpersistencespywarestealertrojanworm

Malware Config

Extracted

Family

vjw0rm

C2

http://veegod.duckdns.org:7777

http://demon666.duckdns.org:9011

Extracted

Family

nanocore

Version

1.2.2.0

C2

wordz54.duckdns.org:8687

rt54.duckdns.org:8687
Mutex

f631006b-8446-49fb-86fd-51078e24df70

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    rt54.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-08-11T20:00:42.860060236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8687

  • default_group

    secure

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    f631006b-8446-49fb-86fd-51078e24df70

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    wordz54.duckdns.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      $RECYCLE.BIN/$R5K4GOK.js

    • Size

      9.0MB

    • MD5

      2fe9e3828a214aedecdfe07148b67070

    • SHA1

      8a6653fc596bb68fdfcb50516dfb61d745bd5dbf

    • SHA256

      a7ea02884d2af760f1bb1e0c7f7b65cfa40825ed236d7ba2a93a57c0369ba4c2

    • SHA512

      fa3b3b2b8e17d131f4175d6d0eae1f4006eb7f34c0e70e8b93c93e80802da93f8e15fb36e6914a53403202be8eaacf241a05834f29b6b2c9c76f42840378e052

    • SSDEEP

      96:7ZH1uy5XIWBof2lcJc9FJtSPBkk+l4Py5zfI2X2D2xRO1IXyYRZGzO00d4Qn19dz:7ZVhSWx1rSOX2D2rzpRZYO00x9nVLxK

    Score
    10/10
    vjw0rmpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

    • Target

      $RECYCLE.BIN/$R7M8AKV.scr

    • Size

      180KB

    • MD5

      c80e8eac4376b250584da075ba90d8a8

    • SHA1

      d9078f0a1264d9aa95027a5564a1f193e0e4401d

    • SHA256

      144cc8d0b542290d38b475f126cc78ea9843b0e760226d307e89f857219167c4

    • SHA512

      b41553b0f5baf2b20f6b9e3164666aba9377dd28557954c475b84c479365faa7449b09a3448b7f881c35609b34a61af84299412d7222619d6194425bbe3343bc

    • SSDEEP

      1536:4xk51s+W+yEReHiB0dJoVssssssswksck930mlS4:4xk5DyTHiB0dJoVssssssswks5hS4

    Score
    1/10
    behavioral3behavioral4

    • Target

      $RECYCLE.BIN/$RC3SQXJ.exe

    • Size

      787KB

    • MD5

      6a31cd7386f96213190e07b4e5691821

    • SHA1

      1dc0686217192136ade3ea4c97751692f2719086

    • SHA256

      dff6fb4233937c2f69694da9fc0e85182ae3fb9a4d36aadfd2e6220e557ef5ca

    • SHA512

      5527eb4b429808deb2f3032ee008f9d71a044bb2ad108d999bfc287e1b50f35c29f4f080fa43decfe62a2786a383b421f8d44c2476a1159fe4d40fc056c07396

    • SSDEEP

      24576:Y6T8Ujl6vO01C1GCTsYoQZtlsZdc40QDrUYuGG1ihTGTTi0Cx:+TUwTGTTo

    Score
    3/10
    behavioral5behavioral6

    • Target

      $RECYCLE.BIN/$RCMX6RL.js

    • Size

      30KB

    • MD5

      5755b6a40493ddbef7a340f21189a16c

    • SHA1

      88a3c0693ec96eb4cbdbd1bdeece2519cdadb5b5

    • SHA256

      476eed72d60eff3ae7cec8fe621e38cd12131c567501f0e7b7688b8618800bc2

    • SHA512

      107c48d26e7e64acc987bf49871780e7ac29c577c495a5d804f45cd5a1ef14b80917d5e55b3e9b41ba769e5fa77d1aada9bc80d1dc33c88e0717e4389c53746f

    • SSDEEP

      768:HUYnBbm0aifjNfwp1nXFCfIaf9fgyQ7buighAZK:9zamq1n1Cwaf9gbuIZK

    Score
    10/10
    vjw0rmpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral7behavioral8

    • Target

      $RECYCLE.BIN/$RHL25IB.exe

    • Size

      181KB

    • MD5

      dee74fb4b0a75386df85859443bc7cea

    • SHA1

      1dd13451cf532dad57321840476300f7d91f2d26

    • SHA256

      3054aceb57920cfbdf9e5f276d9037a804bcfcea1ee125da4ee2300ed335e666

    • SHA512

      6d7b5d3c723bca9bd077e665bd254ee924e05477bebb55376fcaadf2892c4410780afabc3970f8085e373ddd7e104800018681da432b33ce8dba159463b7a292

    • SSDEEP

      1536:B1s+W+yEReHiB0dJoVssssssswksck930mlSF:BDyTHiB0dJoVssssssswks5hSF

    Score
    1/10
    behavioral10behavioral9

    • Target

      $RECYCLE.BIN/$RJXIQS1.bat

    • Size

      325KB

    • MD5

      09329152d36bbe721ce3504787436cf2

    • SHA1

      713a6fb0da4a111649bc7268f193ba52463e3576

    • SHA256

      67e3ece7d1bf12285f01930d6eb28b91ba4a02551d24648ddc79a17cbb9d9423

    • SHA512

      ee5ad3c41a7822bcc759fa3a33dd2d404cf57f1b074973a61f59c2163bb4062c908b820eb9a0e7fde009be42e6cdcab85ea5373805bbc242ea47957c9fd44a7e

    • SSDEEP

      6144:uhhAqNRvU+SV6ukYulDTHKqFSC6M+cnyJZAneGwJZfNiINj:uhhAANCkJlqqFSC6dcyQo15j

    Score
    7/10

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral11behavioral12

    • Target

      pdf-extensions.vbs

    • Size

      111KB

    • MD5

      3fa09c9c6deff87d8c7d42b352ce52b6

    • SHA1

      c69283b1d90cd7fbec45521149292956ca4c6a1f

    • SHA256

      4b18539613e1c78a58734ef5e60fe4793ca83384930a4172dbe7a008b14fec31

    • SHA512

      90696b88151fe173fd2bf64c049b6f7f30493d4daf033f36b9f67f8c94f8b75047df1e7129a119d93bfeafb35007a6341bc745dfac78f817f070c2f9ca44f40e

    • SSDEEP

      12:O+h3awpefBNRxkj5H6NPnqkc+h3awpeZ9nF6NPnJo:O+9xYZNRxo5wqh+9xYZlym

    Score
    10/10
    nanocorekeyloggerspywarestealertrojan

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

      keyloggertrojanstealerspywarenanocore

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    behavioral13behavioral14

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

2
T1053

Persistence

Registry Run Keys / Startup Folder

2
T1060

Scheduled Task

2
T1053

Hidden Files and Directories

1
T1158

Privilege Escalation

Scheduled Task

2
T1053

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

1
T1158

Credential Access

Discovery

Query Registry

6
T1012

System Information Discovery

9
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks