Overview

overview

10

Static

static

formbook_dropped.exe

windows7-x64

10

formbook_dropped.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2023 18:14

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General

  • Target

    formbook_dropped.exe

  • Size

    185KB

  • MD5

    f6266a4df0a33943d7018a03fb16ff67

  • SHA1

    b6e4bad9f79db9797f71d4b2448b1e6351a3acc8

  • SHA256

    d0b843d438fa30a32980d2a153c93a99461476e07562a215fd8e44426f5f2f58

  • SHA512

    d6565fcee1aaabae1e2e5268f3718c2361264d3b320190f5216e43be3065ee1f25144d22e2363078d98fd1f4f3aa883f418dd402481e700cee72e81c25d79747

  • SSDEEP

    3072:y8qzRkfWIYczfzD7nqV+K0fp1TpckexJReVMsYykt9WIFMfWynpXA:yziWIYGzD77jp1FMRKMsCFMrn

Score
10/10
formbookpgntratspywarestealertrojan

Malware Config

Extracted

Family

formbook

Campaign

pgnt

Decoy

0WG18LbM4lR9iqMRa4nlBzTb

jcfGYzPgZTqFZVO9FV2yIw==

laIfrdSC8/4CNg==

Q73ilev5GIWuOrAAFV2yIw==

Q2u/pMw7pv4sPA==

TbqvIUHwlQscPo0HFV2yIw==

8PNWfGPyE8n0IQ==

WtgROxXzvY2L

PryaRBNjm4eP

Y9Hdi06Cry1um9Sj68YAu1o=

3Gulyp7CMQtR78jvLkk=

JJ3GasTVTCRQT6Tfz6S6GlI=

RnS42bhb9tI0R6UpD6wOxriNxw==

he1mi2sOGfzTRGHnuA==

eaYjCtjxVjdU5XLRtBMBLKk9quA=

k9rTeEqYzzw8WaTfz6S6GlI=

5luVQwe2vJWKEAiMdF4=

MGW14L9OVk5Y5TaR6w/DqdhYxXVY

mAsYz6k6sQkDC0/DoHj9t1RPWLSgFQ==

y5klhuMbE8n0IQ==

Signatures

  • Formbook

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

    trojanspywarestealerformbook
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\formbook_dropped.exe
      "C:\Users\Admin\AppData\Local\Temp\formbook_dropped.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:504
    • C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3344
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:3244

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/504-133-0x0000000000DB0000-0x00000000010FA000-memory.dmp
      Filesize

      3.3MB

      Download
    • memory/504-135-0x00000000003F0000-0x0000000000400000-memory.dmp
      Filesize

      64KB

      Download
    • memory/504-134-0x0000000000130000-0x000000000015F000-memory.dmp
      Filesize

      188KB

      Download
    • memory/504-132-0x0000000000130000-0x000000000015F000-memory.dmp
      Filesize

      188KB

      Download
    • memory/2620-142-0x0000000008710000-0x00000000087C9000-memory.dmp
      Filesize

      740KB

      Download
    • memory/2620-136-0x0000000003270000-0x000000000333E000-memory.dmp
      Filesize

      824KB

      Download
    • memory/2620-144-0x0000000008710000-0x00000000087C9000-memory.dmp
      Filesize

      740KB

      Download
    • memory/3344-139-0x0000000001070000-0x000000000109D000-memory.dmp
      Filesize

      180KB

      Download
    • memory/3344-140-0x00000000017D0000-0x0000000001B1A000-memory.dmp
      Filesize

      3.3MB

      Download
    • memory/3344-141-0x00000000016A0000-0x000000000172F000-memory.dmp
      Filesize

      572KB

      Download
    • memory/3344-138-0x0000000000D40000-0x0000000000D4A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/3344-143-0x0000000001070000-0x000000000109D000-memory.dmp
      Filesize

      180KB

      Download
    • memory/3344-137-0x0000000000000000-mapping.dmp
      Download