General

  • Target

    PO_20230025-03662.js

  • Size

    633KB

  • Sample

    220623-gm1rbsbhdj

  • MD5

    9659595bb96500ea6ac6892bcb450d03

  • SHA1

    db8e3c13226387bbdd7703abd60baf6e78851789

  • SHA256

    dee7026593429404b9cc00a28b12202ecf60049be57f5bf9a0b7dae383055e06

  • SHA512

    e6da4a8e7d5e99813d581bb18eee55c9aa629a974412887b1f412f6b860283be68f3d47b16d11ee738c2b8e7500b33c42e24f6d20cfb4175598e0c9c99e3a48c

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

vs8g

Decoy

xEVEsySadSMf8UUC

H8ZbYtGKWPCfp91+uS3TFo/F7tYacwDqHw==

L/St5UjIhTMzEHsb

8h8tDvq0nl8JCWoagxa0MVyvnA==

7bml44z9jZsZx8Co2T8=

EwH88ZtcOu8ehs2P2o6wv78FEe4+xRQ=

bTn3LpE1HfpPAXI=

nYxT+9GLhS1d3zzGJuTDlgpT

HxonIwh8TesenMCo2T8=

Ki83MiehhC9e1i7YQ/Wd32JsGcun

wHcUByFRMuEGh8Co2T8=

86tqpg/Jy60eFmMRPefDlgpT

grSUYa5yahUf8UUC

HVviVsk7Cb6Elc571pnSWCJ93G17PkiI

6LJ1qBPUtGNIl8Co2T8=

AYuWD33xt44VxsCo2T8=

/smXvLMh868VzQqs99/DlgpT

1kEMNVtaMw6KmN+YANYm+kA=

daarti3nbFVKnsCo2T8=

0EJM6cFFHvawA2U=

Targets

    • Target

      PO_20230025-03662.js

    • Size

      633KB

    • MD5

      9659595bb96500ea6ac6892bcb450d03

    • SHA1

      db8e3c13226387bbdd7703abd60baf6e78851789

    • SHA256

      dee7026593429404b9cc00a28b12202ecf60049be57f5bf9a0b7dae383055e06

    • SHA512

      e6da4a8e7d5e99813d581bb18eee55c9aa629a974412887b1f412f6b860283be68f3d47b16d11ee738c2b8e7500b33c42e24f6d20cfb4175598e0c9c99e3a48c

    • Formbook

      Formbook is a data stealing malware which is capable of stealing data.

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Xloader

      Xloader is a rebranded version of Formbook malware.

    • suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata: ET MALWARE FormBook CnC Checkin (GET)

    • suricata: ET MALWARE FormBook CnC Checkin (POST) M2

      suricata: ET MALWARE FormBook CnC Checkin (POST) M2

    • Xloader Payload

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Checks computer location settings

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

    • Drops startup file

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Tasks