formbook | 4bf712e760eabd92d9ddc32c20af51729630ceed38676ef496c1412fcc042d15

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 01:22

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General

Target

EDG9502024072.exe
Size

1.0MB
MD5

4472308b26d97576bda38ee8976036af
SHA1

69f68ae82ffa3d8804aed31ce151efb26a74a8c1
SHA256

7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce
SHA512

fdaf2e5c1aa93e67798fe99725cac4da3898be74e76eb22440b6bcce6ab064fcd73f1a25581f0ca4ae16e9f527927f661ad18dd5ef27d3fa0f4a2c9799befa32
SSDEEP

24576:Ftb20pkaCqT5TBWgNQ7aIsWLhU/b5bTj6A:2Vg5tQ7aI7hS5

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/4380-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4380-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3292-20-0x0000000000420000-0x000000000044F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5280 set thread context of 4380	5280	EDG9502024072.exe	87
PID 4380 set thread context of 3568	4380	svchost.exe	56
PID 3292 set thread context of 3568	3292	msdt.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2296	5280	WerFault.exe	83

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EDG9502024072.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4380	svchost.exe
4380	svchost.exe
4380	svchost.exe
4380	svchost.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe
3292	msdt.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
5280	EDG9502024072.exe
4380	svchost.exe
4380	svchost.exe
4380	svchost.exe
3292	msdt.exe
3292	msdt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4380	svchost.exe
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE
Token: SeShutdownPrivilege	3568	Explorer.EXE
Token: SeCreatePagefilePrivilege	3568	Explorer.EXE
Token: SeDebugPrivilege	3292	msdt.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
5280	EDG9502024072.exe
5280	EDG9502024072.exe
3568	Explorer.EXE
3568	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5280	EDG9502024072.exe
5280	EDG9502024072.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3568	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5280 wrote to memory of 4380	5280	EDG9502024072.exe	87
PID 5280 wrote to memory of 4380	5280	EDG9502024072.exe	87
PID 5280 wrote to memory of 4380	5280	EDG9502024072.exe	87
PID 5280 wrote to memory of 4380	5280	EDG9502024072.exe	87
PID 3568 wrote to memory of 3292	3568	Explorer.EXE	92
PID 3568 wrote to memory of 3292	3568	Explorer.EXE	92
PID 3568 wrote to memory of 3292	3568	Explorer.EXE	92
PID 3292 wrote to memory of 4408	3292	msdt.exe	98
PID 3292 wrote to memory of 4408	3292	msdt.exe	98
PID 3292 wrote to memory of 4408	3292	msdt.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3568
- C:\Users\Admin\AppData\Local\Temp\EDG9502024072.exe
  "C:\Users\Admin\AppData\Local\Temp\EDG9502024072.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:5280
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\EDG9502024072.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4380
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5280 -s 724
    3⤵
    - Program crash
    PID:2296
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2096
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:3292
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5280 -ip 5280
1⤵
PID:3308

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/3292-20-0x0000000000420000-0x000000000044F000-memory.dmp

Filesize
188KB

Download
memory/3292-17-0x00000000004A0000-0x00000000004F7000-memory.dmp

Filesize
348KB

Download
memory/3292-18-0x00000000004A0000-0x00000000004F7000-memory.dmp

Filesize
348KB

Download
memory/3568-16-0x0000000008E00000-0x0000000008F5E000-memory.dmp

Filesize
1.4MB

Download
memory/3568-19-0x0000000008E00000-0x0000000008F5E000-memory.dmp

Filesize
1.4MB

Download
memory/3568-23-0x000000000B000000-0x000000000B193000-memory.dmp

Filesize
1.6MB

Download
memory/3568-25-0x000000000B000000-0x000000000B193000-memory.dmp

Filesize
1.6MB

Download
memory/3568-27-0x000000000B000000-0x000000000B193000-memory.dmp

Filesize
1.6MB

Download
memory/4380-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4380-12-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/4380-15-0x0000000001CB0000-0x0000000001CC4000-memory.dmp

Filesize
80KB

Download
memory/4380-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5280-10-0x0000000003540000-0x0000000003544000-memory.dmp

Filesize
16KB

Download