General

  • Target

    AWB 7548381235308.xlsx

  • Size

    227KB

  • Sample

    211112-2qz97abcgr

  • MD5

    8580b837d36557eb8c3f427d09516ac2

  • SHA1

    6be039af32e0308859330f02679d90fcaf2c1a7a

  • SHA256

    4d42a8ac965539112d0afb5f75d6c2c28f44d80d8441bdb3a4ab890275d9cd84

  • SHA512

    7e98d79c29fa709417197a0bb06a9ae91a29daadb7787a932c2151c4cd16e587a6b24497b5a1e83bc502350339f11a43194c035a09e16613f3b717ba3b39bbe8

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

C2

http://www.yourmajordomo.com/kzk9/

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Targets

    • Target

      AWB 7548381235308.xlsx

    • Size

      227KB

    • MD5

      8580b837d36557eb8c3f427d09516ac2

    • SHA1

      6be039af32e0308859330f02679d90fcaf2c1a7a

    • SHA256

      4d42a8ac965539112d0afb5f75d6c2c28f44d80d8441bdb3a4ab890275d9cd84

    • SHA512

      7e98d79c29fa709417197a0bb06a9ae91a29daadb7787a932c2151c4cd16e587a6b24497b5a1e83bc502350339f11a43194c035a09e16613f3b717ba3b39bbe8

    • 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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Command-Line Interface

1
T1059

Exploitation for Client Execution

1
T1203

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Tasks