General

  • Target

    mon.exe

  • Size

    605KB

  • Sample

    230313-laf9dahe95

  • MD5

    5d9ab26afef221bca7293659356756ac

  • SHA1

    4c7f919c34b300dc432ac70565aec533fc8cd76c

  • SHA256

    2de208696a07b8792d8fb3625771c71363988c0c2f5980ee4339030cf7626b11

  • SHA512

    9d1d8067287c5bb15dc5b28a71606022d7b3da3ecab77dc126e7a6b4d5faff58175e328a6425ccf528be226a42290c28dbce4952e66147f81dc770a0a9f33845

  • SSDEEP

    12288:vYIcAqSSAx6tx2nFh6Fg1UlnlqGvBH4KewELMg0Xk+v4u:vYIcAqSStt8nFhwnksRTk04u

Malware Config

Extracted

Family

formbook

Campaign

poub

Decoy

WY0eksfISzRg4O6c+opnGL6gaw==

moRjn9ExtYi8UmUo+Tya

2vME+GedoxzFnuLXesUoVj4=

EvW4JWJ1NQ8nN3tA3SM=

2mK9efMZMgN1VOs=

8d0jua5b0J6AQEW7

/2cyThOd37DSTYMASDye4Q0t/Vs=

ral+tbIh2KKAQEW7

YLY9jsPtYB/FRmMo+Tya

R1WcElWAMtFxFrVqtZT2ZpIS9xRZNho=

KFXGg/T1pCC9GjrxUPTcjw==

8mMlK5nDwjjPFTP5jMtAtQ0t/Vs=

c7am8nhhlCo=

UW91trZj6dENxuRdpxOvW1Cf

sjOMUcvq6lYJCZEfV4euFzY=

62nBgPjdmWQkmWElww==

64E8JqA1aruSUvw=

NqI1reXpcR+REye0

8+y1oOsbjgSyEhjXUPTcjw==

Rx9by8gNBwN1VOs=

Targets

    • Target

      mon.exe

    • Size

      605KB

    • MD5

      5d9ab26afef221bca7293659356756ac

    • SHA1

      4c7f919c34b300dc432ac70565aec533fc8cd76c

    • SHA256

      2de208696a07b8792d8fb3625771c71363988c0c2f5980ee4339030cf7626b11

    • SHA512

      9d1d8067287c5bb15dc5b28a71606022d7b3da3ecab77dc126e7a6b4d5faff58175e328a6425ccf528be226a42290c28dbce4952e66147f81dc770a0a9f33845

    • SSDEEP

      12288:vYIcAqSSAx6tx2nFh6Fg1UlnlqGvBH4KewELMg0Xk+v4u:vYIcAqSStt8nFhwnksRTk04u

    • Formbook

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

    • Xloader

      Xloader is a rebranded version of Formbook malware.

    • Xloader payload

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Tasks