formbook | 1c8de42bff76a20cdaee2bed7629f8f0dfcf4ab5c7b5ee637d147f6f45311015

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-10-2024 13:17

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General

Target

z17Transaction_Details_ReferenceID_pdf.exe
Size

1.2MB
MD5

5513c53ff0ac4a880b5a35ceb8b7cb1c
SHA1

7bc81330e32d49af2689f81152d2cd696c99c6be
SHA256

1c8de42bff76a20cdaee2bed7629f8f0dfcf4ab5c7b5ee637d147f6f45311015
SHA512

f40b441c78ef38bfcf051c3626cf98055d5e5dca9c3fd56dd5b441411dbdefac74d63627233fb1965a3fab4e1a30773f60fbf16eaf83b1a71afe7ed6cb0b9c39
SSDEEP

12288:LLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QHCVvs1IyOft2m2L9ajYhHti8LIva8xi:/fmMv6Ckr7Mny5QHkzzcm2L9NJIvRbsT

Score

10^/10

formbook f29s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

f29s

Decoy

rostnixon.net

exxxwordz.xyz

ndradesanches.shop

eneral-vceef.xyz

isanbowl.top

aresrasherregard.cfd

dzas-yeah.xyz

0083.miami

hongziyin01.top

jdhfmq.live

alembottling.net

vtyo-phone.xyz

kaqb-decade.xyz

odel-lsmfz.xyz

aradise.tech

uan123-rtp43.xyz

pusptracking.xyz

uqhi42.xyz

mihy-professor.xyz

mnz-your.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4376-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4376-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4376-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4592-16-0x0000000000F20000-0x0000000000F4F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1448 set thread context of 4376	1448	z17Transaction_Details_ReferenceID_pdf.exe	87
PID 4376 set thread context of 3540	4376	svchost.exe	56
PID 4376 set thread context of 3540	4376	svchost.exe	56
PID 4592 set thread context of 3540	4592	systray.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	z17Transaction_Details_ReferenceID_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe
4592	systray.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1448	z17Transaction_Details_ReferenceID_pdf.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4376	svchost.exe
4592	systray.exe
4592	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4376	svchost.exe
Token: SeDebugPrivilege	4592	systray.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1448	z17Transaction_Details_ReferenceID_pdf.exe
1448	z17Transaction_Details_ReferenceID_pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1448	z17Transaction_Details_ReferenceID_pdf.exe
1448	z17Transaction_Details_ReferenceID_pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3540	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 4376	1448	z17Transaction_Details_ReferenceID_pdf.exe	87
PID 1448 wrote to memory of 4376	1448	z17Transaction_Details_ReferenceID_pdf.exe	87
PID 1448 wrote to memory of 4376	1448	z17Transaction_Details_ReferenceID_pdf.exe	87
PID 1448 wrote to memory of 4376	1448	z17Transaction_Details_ReferenceID_pdf.exe	87
PID 3540 wrote to memory of 4592	3540	Explorer.EXE	102
PID 3540 wrote to memory of 4592	3540	Explorer.EXE	102
PID 3540 wrote to memory of 4592	3540	Explorer.EXE	102
PID 4592 wrote to memory of 1304	4592	systray.exe	107
PID 4592 wrote to memory of 1304	4592	systray.exe	107
PID 4592 wrote to memory of 1304	4592	systray.exe	107

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\z17Transaction_Details_ReferenceID_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\z17Transaction_Details_ReferenceID_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\z17Transaction_Details_ReferenceID_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4376
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4364
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4548
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:5012
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4100
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4432
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1080
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4232
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4592
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1448-2-0x0000000004290000-0x0000000004690000-memory.dmp

Filesize
4.0MB

Download
memory/3540-23-0x00000000083B0000-0x00000000084CF000-memory.dmp

Filesize
1.1MB

Download
memory/3540-21-0x00000000083B0000-0x00000000084CF000-memory.dmp

Filesize
1.1MB

Download
memory/3540-20-0x00000000083B0000-0x00000000084CF000-memory.dmp

Filesize
1.1MB

Download
memory/3540-8-0x0000000008210000-0x0000000008303000-memory.dmp

Filesize
972KB

Download
memory/3540-17-0x0000000008670000-0x00000000087AF000-memory.dmp

Filesize
1.2MB

Download
memory/3540-12-0x0000000008670000-0x00000000087AF000-memory.dmp

Filesize
1.2MB

Download
memory/3540-13-0x0000000008210000-0x0000000008303000-memory.dmp

Filesize
972KB

Download
memory/4376-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4376-11-0x00000000007C0000-0x00000000007D4000-memory.dmp

Filesize
80KB

Download
memory/4376-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4376-7-0x0000000000730000-0x0000000000744000-memory.dmp

Filesize
80KB

Download
memory/4376-4-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/4376-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-15-0x00000000009B0000-0x00000000009B6000-memory.dmp

Filesize
24KB

Download
memory/4592-14-0x00000000009B0000-0x00000000009B6000-memory.dmp

Filesize
24KB

Download
memory/4592-16-0x0000000000F20000-0x0000000000F4F000-memory.dmp

Filesize
188KB

Download