Overview

overview

10

Static

static

1

old outsta...PDF.js

windows7-x64

10

old outsta...PDF.js

windows10-2004-x64

10

Sharing

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General

  • Target

    old outstanding .PDF.jar

  • Size

    762KB

  • Sample

    230517-swxa2sfe57

  • MD5

    a325d86c0dea86e974f3b09ec72f51b4

  • SHA1

    44d64605ae314225bca428613a10940586e1c7cc

  • SHA256

    851c015afd0f6a62fab6b5c1cfc532989085e2a96fefe5453f9e5c932e5b7803

  • SHA512

    7e34e8031d1dd4307c5edea0d9c1ef568cda19603870c41fcfb6c62d95dbd16419372e8c981a910ecd9c30d5020e6f2ad62f59f55516b3b12a8df5c3187d144d

  • SSDEEP

    12288:Vtaw2nT9aOT4J55sUmjL10UJ4cZ4xhzAFGWqUAd4Y0Jo1e8dAm25qOrKF1LzrM/E:+T9epsJjh3J4Y4kq10y1esH2gdF1Lzrz

Score
10/10
vjw0rmwshratpersistencetrojanworm

Malware Config

Extracted

Family

wshrat

C2

http://84.21.172.33:8895

Targets

    • Target

      old outstanding .PDF.js

    • Size

      3.4MB

    • MD5

      f8ddd3aaf61755a6c98ec2c29972175c

    • SHA1

      1ddd1757ef6be65c231dc383369b84773544a6da

    • SHA256

      344b8c7c7c4467f18c9b43447efafad8ac795c25b006465aeb1bd6097b50abb7

    • SHA512

      a6ebf3d3ffa5c749f2ea2dc5eb90a7a355b8dcc1cf5b7b48cfdbc291b8f5f6df560ffcd59a6242583e64d0795ba034ad7aea2b68039b98b9b50259305e13e1c9

    • SSDEEP

      24576:zw3cOiE9u9QbpAW0MP074JExjtKTs7JRkWgGgbR4L3lN2bpxjkn1vrFWuYLasHfy:E0j

    Score
    10/10
    vjw0rmwshratpersistencetrojanworm

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

      trojanwormvjw0rm

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

      trojanwshrat

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks