Overview

overview

10

Static

static

10

$RECYCLE.B...3D.exe

windows7-x64

$RECYCLE.B...3D.exe

windows10-2004-x64

$RECYCLE.B...L8H.js

windows7-x64

1

$RECYCLE.B...L8H.js

windows10-2004-x64

1

$RECYCLE.B...PRW.js

windows7-x64

1

$RECYCLE.B...PRW.js

windows10-2004-x64

1

$RECYCLE.B...R2U.js

windows7-x64

1

$RECYCLE.B...R2U.js

windows10-2004-x64

1

$RECYCLE.B...3D.exe

windows7-x64

10

$RECYCLE.B...3D.exe

windows10-2004-x64

10

$RECYCLE.B...L8H.js

windows7-x64

10

$RECYCLE.B...L8H.js

windows10-2004-x64

10

$RECYCLE.B...PRW.js

windows7-x64

10

$RECYCLE.B...PRW.js

windows10-2004-x64

10

$RECYCLE.B...R2U.js

windows7-x64

10

$RECYCLE.B...R2U.js

windows10-2004-x64

10

T817630494...Pdf.js

windows7-x64

10

T817630494...Pdf.js

windows10-2004-x64

10

Sharing

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General

  • Target

    1.vhd

  • Size

    18.0MB

  • Sample

    230224-rsefdshe4t

  • MD5

    61d53ce85393c16893d5a20e28ba7975

  • SHA1

    8161c028b9351c58ad9440211ce436693027cb7e

  • SHA256

    b1c0b2b8c165b4144be04ac5138af82825f61f4928a4ddf8b9db44f3a2ba1e0d

  • SHA512

    42eb47aba31bc3da5eae9b892bb85398a91ba163d9eeaf21719be9013c2012afb8443e699b673d113ab55194c9352747de40181b78e77f90227f105821ade7fb

  • SSDEEP

    768:qyDRGOd/DFZhnkURGOd/DFZhnkJpbqA4mWp+qY5YP6NZcmXpgF6TG9TK7egGhHzl:qyDRGgV9RGgVMpbK6k64hHzr8eCdn19

Score
10/10
purecryptervjw0rmdownloaderloaderpersistencetrojanworm

Malware Config

Extracted

Family

purecrypter

C2

https://ashaambulanceservice.com/Vuzbri.bmp

Extracted

Family

vjw0rm

C2

http://js9400.duckdns.org:9400

http://js9300.duckdns.org:9300

Targets

    • Target

      $RECYCLE.BIN/$I40P23D.exe

    • Size

      544B

    • MD5

      7e08962bf47aae3acd8a9633b0a62e19

    • SHA1

      c4e224381213d3454fe45cb84a1c3211be30272c

    • SHA256

      ee89ffc4cb01b0323c56ed7d190906501f4aabab067a07aac67bad2e0559929c

    • SHA512

      d78b50c484609bb32d701d606e6b58dc606b70d8c562af7cdc26cda2803684800be7f18384551b447847645fbc21d3c49eb5fa24e136fc6fc4acab538babd7d2

    Score
    1/10
    behavioral1behavioral2

    • Target

      $RECYCLE.BIN/$I4FIL8H.js

    • Size

      544B

    • MD5

      3bb5ddbbc15c65e6d7af1c41a877bf2f

    • SHA1

      c9411803abd57b1c62936f7a973fde45b792a0f9

    • SHA256

      73cfb6a30179d5759f151505756edd832bdfe6675424cdfef2d0d95b9265fe14

    • SHA512

      6b3eacbd3de4c5ec44852cef7349062d206f3af35f6f315a9e57af6023ac3cd563bd4bfc3f1ce4a1ca69e394e2fd33bec7a7185bac289be7ac713bc24a497686

    Score
    1/10
    behavioral3behavioral4

    • Target

      $RECYCLE.BIN/$I5VEPRW.js

    • Size

      544B

    • MD5

      7fcacbf214c7091a4e52f42ba83ca75a

    • SHA1

      93e6071f014cd5f47dbc0e52c93aadcde29e1457

    • SHA256

      1704bea192c12c3d81474e73f5d0a2cc98cb57e9440e3f033862bd85f5980f85

    • SHA512

      bae645c2ac3758975d468413e430c22c8c9803d90b65ea2d593ab542f901ad771bec89a6eef87103b28105a38addfa97cabb794f488caeb6024542d5c5a8f27f

    Score
    1/10
    behavioral5behavioral6

    • Target

      $RECYCLE.BIN/$IMH8R2U.js

    • Size

      544B

    • MD5

      2c4439dfc4bfb10e8bf9eb4c2932e067

    • SHA1

      925eba054aae34b564c9f70f6813b70eedc744f8

    • SHA256

      161b64c65461b1aa5fbbdfb7d465686ba02b4b3d89a19aaafb2f1a0f4f72597a

    • SHA512

      64f02a63b754586e03a27547f4a2c468307318768bfb24bbb7ad3e02fc726c9e057e1770e8f84b849aad93f9751a655082129bde03a1c45afb6edf495f588501

    Score
    1/10
    behavioral7behavioral8

    • Target

      $RECYCLE.BIN/$R40P23D.exe

    • Size

      92KB

    • MD5

      d40448b5ac56cf8f2a4bbea8d22982c2

    • SHA1

      ad405a4f3ea892a80b696f7460de70bbb6b082f8

    • SHA256

      d97bdbb4ad01f8873a141e7544160d070469b0c6865b823fec42184315b923cc

    • SHA512

      be9b6ffda6ebee70baa79bab24129150895bf5d06f0d634a1099e129bd63396c2f73e1c82115b6ca37df5aa5c406e3d1df2932e9a8dbeb927aacda727675082d

    • SSDEEP

      384:IiZHmh0O/Lrw+Ke8QEoDeJisnDPnFw5sglcMhQM0u+GrCPHFYgMSXA:IgGhHzr8e8B1PnFusmcDCXrCPqEXA

    Score
    10/10
    purecrypterdownloaderloader
    behavioral10behavioral9

    • Target

      $RECYCLE.BIN/$R4FIL8H.js

    • Size

      9.0MB

    • MD5

      5d97ab7f843e6c18b96c4e34bd65ff09

    • SHA1

      9ad9f18b92f57a3e1536a552dc3e4081b34169e2

    • SHA256

      eb841738aeb5f98695da31d3ebe1bf241f8411283373fd6e99788fc52903b1be

    • SHA512

      116897043738962c9e059d4701e01b3f36987100a00951ef020c2481dc100a3a59eaf106e5c96b042019dceb53b3a143454c6aaa861262bf2d24c45651699e81

    • SSDEEP

      96:kZH1uyAXIXGou2lcJc9l2JEuft2v2wz2zadZxOBeFcr3vVkcZBIKkcZBe4KcZUCS:kZVhpngJpG2wz2xkFm3vVEKZpFEm

    Score
    10/10
    vjw0rmpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral11behavioral12

    • Target

      $RECYCLE.BIN/$R5VEPRW.js

    • Size

      97KB

    • MD5

      7afbb2051c1ba1c1e88c499c5e11636a

    • SHA1

      4b2a14b3ca310b1f39959c130ae7b72a03078873

    • SHA256

      74fc83dc153086db0329b982e73e8bee4b652d1265c8185b0b4374898a112d06

    • SHA512

      c506d2d13383948d9acfafdc152f81326fc73381530fbb019794f9bc2b7733b3b455f6eddc92d597614f0f6d641f391d737f93f809486707cb1d8f84378309ec

    • SSDEEP

      384:chWWz5Kfy24jHueR45qWWxWBWHKSqmqR4G:XYG

    Score
    10/10
    vjw0rmpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral13behavioral14

    • Target

      $RECYCLE.BIN/$RMH8R2U.js

    • Size

      97KB

    • MD5

      7aab68aeb388528f9e3448ea0dce56d7

    • SHA1

      07d648c7247e2db064b7ba1b1b21722c475e3396

    • SHA256

      610eb77c6ef6c0767a1b8d0157b39ea5105697ffdf31d2afa5963e4da8cd0cb8

    • SHA512

      1f59fd8a717ff3bf9f57452440a6e08907cd9c32050aa399ab0a591c6109486410e74d21d5ee41355b4b041f4dd88c679d8077b611cfaea9c597aaa67ed0e8b4

    • SSDEEP

      384:chWz5Kfy24jHueR45qWWxWBWHKSqmqR4G:OYG

    Score
    10/10
    vjw0rmpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • Blocklisted process makes network request

    • Drops startup file

    • Adds Run key to start application

      persistence
    behavioral15behavioral16

    • Target

      T817630494847_Payment_receipt_Pdf.js

    • Size

      2.0MB

    • MD5

      f8a9117d4c4217fd4cbab1da6d3359b6

    • SHA1

      f3ea387aeaf9e587d135d797e0468904328c291a

    • SHA256

      db99c6255bfd1d06c6a103e4602715c069039c140389d33d2909912e1b58158d

    • SHA512

      232eb1d882feac675994d192436254521b42a2b1d2ae32f6c5cd8618ae29d619a26ad9672f6644a62abfd484a1b0e76f69003d40f79a14cc200be4b124d0bea6

    • SSDEEP

      192:aZVhB3qe3Ju2l2ZUCz1ZNWDl01tHY8T0:cVHaLRZcmXpg

    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
    behavioral17behavioral18

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

4
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Credential Access

Discovery

System Information Discovery

5
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks