General

  • Target

    3794a970aaf5b516a68ee78ca115981e289fb0af575d53c02efd860ef9a40d2a

  • Size

    347KB

  • Sample

    220521-a1fjzseagq

  • MD5

    e3ad0c63ef186d3f865df7f93a81b125

  • SHA1

    a7a09846d201736decb5db298821beb25f7acf56

  • SHA256

    3794a970aaf5b516a68ee78ca115981e289fb0af575d53c02efd860ef9a40d2a

  • SHA512

    92a2509dd3a3dfeb59c621c233cf522ee6c243eac91271e5184dd8f96ca591e03522aab3a7f2d6c8479f6c4cc4a338fcc9e618a06439be1ae155fe39e74c9736

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

xczm

Decoy

graceandnathangetknotted.com

myporndesires.com

alphagamingaccessories.com

51zhuimeng.com

196wrf.info

lubanzizhi.com

107xt.com

jatinangorcity.com

tumblrdatinggame.com

mtorc1inhibitor.com

boogxgenblm.live

iotaneuralnetwork.com

booksinclouds.co.uk

made-in-asiago.tech

myfunbooks.net

rglrgrl.net

azumiyakkyoku.info

qasryna.com

ara-digital.com

barnboost.com

Targets

    • Target

      comand? nou?.exe

    • Size

      390KB

    • MD5

      4213a0c5f1cb2ef588cc1097c21a3461

    • SHA1

      dbf1b38120dd815f96660ba1af0889a599e0fa11

    • SHA256

      7da99d277c87633b2aab117deab3bfdd6f9cef0d82172264f600e7b385892c37

    • SHA512

      62e77591ab1446adf82b7ac705b5886eb3e17244574b00337efcfc99e69372cc3f7891364826aa30e27a47e04b936cd654cd9e59d1079e56c5e1f4f904055994

    • Formbook

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

    • suricata: ET MALWARE FormBook CnC Checkin (GET)

      suricata: ET MALWARE FormBook CnC Checkin (GET)

    • Formbook Payload

    • Looks for VirtualBox Guest Additions in registry

    • Blocklisted process makes network request

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • 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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks