formbook | 8485bf03cc8dcae3bbd2a1a7abfb54a91a6590e8f4da85c834c58c9debd4c07c

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-08-2024 13:14

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General

Target

Advance Payment Receipt_pdf.exe
Size

1.1MB
MD5

2ba59102c4f4f5316e5946ccd11f9631
SHA1

9809a8ac154c800724854c8918473f780a34f39f
SHA256

8485bf03cc8dcae3bbd2a1a7abfb54a91a6590e8f4da85c834c58c9debd4c07c
SHA512

d1c50d04c0f08e0caa53a755946b2dc2dec04f6d42dc2d2dda359f5a0c289d541eccc521bcc76b8e1cd9e03e1d043a5a7b711acc5ba85b1e6fe44d1cb1da59b5
SSDEEP

24576:SqDEvCTbMWu7rQYlBQcBiT6rprG8a/c5B135ZPF:STvC/MTQYxsWR7a/sj35Z

Score

10^/10

formbook bi05 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi05

Decoy

ollow-the-bit.online

aopho.autos

14ra567dp.autos

48651301.top

ussian-dating-54714.bond

sychology-degree-80838.bond

lytracker.xyz

strology-forest.sbs

swjbcl3.top

ridgenexttechnologies.partners

lroy.sbs

kyscreen.vip

anhit.live

uckyheart.xyz

orddserials.online

hetune.shop

nherited-traits-ant.bond

stanaslot-1.xyz

sychologist-therapy-36914.bond

iandramonami.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4360-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4360-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4896-21-0x0000000000E50000-0x0000000000E7F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1840 set thread context of 4360	1840	Advance Payment Receipt_pdf.exe	86
PID 4360 set thread context of 3424	4360	svchost.exe	55
PID 4896 set thread context of 3424	4896	explorer.exe	55

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	Advance Payment Receipt_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4360	svchost.exe
4360	svchost.exe
4360	svchost.exe
4360	svchost.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe
4896	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1840	Advance Payment Receipt_pdf.exe
4360	svchost.exe
4360	svchost.exe
4360	svchost.exe
4896	explorer.exe
4896	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4360	svchost.exe
Token: SeDebugPrivilege	4896	explorer.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1840	Advance Payment Receipt_pdf.exe
1840	Advance Payment Receipt_pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1840	Advance Payment Receipt_pdf.exe
1840	Advance Payment Receipt_pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3424	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 4360	1840	Advance Payment Receipt_pdf.exe	86
PID 1840 wrote to memory of 4360	1840	Advance Payment Receipt_pdf.exe	86
PID 1840 wrote to memory of 4360	1840	Advance Payment Receipt_pdf.exe	86
PID 1840 wrote to memory of 4360	1840	Advance Payment Receipt_pdf.exe	86
PID 3424 wrote to memory of 4896	3424	Explorer.EXE	87
PID 3424 wrote to memory of 4896	3424	Explorer.EXE	87
PID 3424 wrote to memory of 4896	3424	Explorer.EXE	87
PID 4896 wrote to memory of 4476	4896	explorer.exe	88
PID 4896 wrote to memory of 4476	4896	explorer.exe	88
PID 4896 wrote to memory of 4476	4896	explorer.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\Advance Payment Receipt_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Advance Payment Receipt_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:1840
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Advance Payment Receipt_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4360
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:4896
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1840-11-0x0000000003F40000-0x0000000003F44000-memory.dmp

Filesize
16KB

Download
memory/3424-23-0x00000000087E0000-0x0000000008916000-memory.dmp

Filesize
1.2MB

Download
memory/3424-30-0x0000000008F10000-0x0000000008FE2000-memory.dmp

Filesize
840KB

Download
memory/3424-27-0x0000000008F10000-0x0000000008FE2000-memory.dmp

Filesize
840KB

Download
memory/3424-26-0x0000000008F10000-0x0000000008FE2000-memory.dmp

Filesize
840KB

Download
memory/3424-17-0x00000000087E0000-0x0000000008916000-memory.dmp

Filesize
1.2MB

Download
memory/4360-16-0x00000000007C0000-0x00000000007D4000-memory.dmp

Filesize
80KB

Download
memory/4360-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4360-13-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/4360-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4896-20-0x0000000000710000-0x0000000000B43000-memory.dmp

Filesize
4.2MB

Download
memory/4896-21-0x0000000000E50000-0x0000000000E7F000-memory.dmp

Filesize
188KB

Download
memory/4896-18-0x0000000000710000-0x0000000000B43000-memory.dmp

Filesize
4.2MB

Download