formbook | 2d59b30ee45a0d50d64a273f99b9e1fc3abc2b5601c7de338899e39456707880

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 03:58

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General

Target

Revised documents.exe
Size

741KB
MD5

034884d1de2c2e61a49d403a6673118c
SHA1

4106f0fe2e8504f0f71cc012ecb992b63cb0792b
SHA256

6f706398207b1fd3a00de5f859dc840cf8e100175fdabe260ebb96db5980f03c
SHA512

3a751cde89e771defecd23a1fda44c219df59bca611daebd8be29985071e0e5d5f15f983306afc9b468c92e2bbb96c4b6438ae23fbe896927cf47c29c72037b7
SSDEEP

12288:2q7kGLFFgETr/iTTbB6xddbQT+wwOXgMSQejYO6YmDDI01jnIltQLZEK:l3rKGHbQlSQ/GmDt1jnRj

Score

10^/10

formbook a03d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.net

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2620-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2592-29-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2516	powershell.exe
2720	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2272 set thread context of 2620	2272	Revised documents.exe	37
PID 2620 set thread context of 1184	2620	RegSvcs.exe	21
PID 2592 set thread context of 1184	2592	wininit.exe	21

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 6 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	Revised documents.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
2272	Revised documents.exe
2272	Revised documents.exe
2720	powershell.exe
2516	powershell.exe
2272	Revised documents.exe
2272	Revised documents.exe
2272	Revised documents.exe
2620	RegSvcs.exe
2620	RegSvcs.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe
2592	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2620	RegSvcs.exe
2620	RegSvcs.exe
2620	RegSvcs.exe
2592	wininit.exe
2592	wininit.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2272	Revised documents.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2516	powershell.exe
Token: SeDebugPrivilege	2620	RegSvcs.exe
Token: SeDebugPrivilege	2592	wininit.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2516	2272	Revised documents.exe	30
PID 2272 wrote to memory of 2516	2272	Revised documents.exe	30
PID 2272 wrote to memory of 2516	2272	Revised documents.exe	30
PID 2272 wrote to memory of 2516	2272	Revised documents.exe	30
PID 2272 wrote to memory of 2720	2272	Revised documents.exe	32
PID 2272 wrote to memory of 2720	2272	Revised documents.exe	32
PID 2272 wrote to memory of 2720	2272	Revised documents.exe	32
PID 2272 wrote to memory of 2720	2272	Revised documents.exe	32
PID 2272 wrote to memory of 2732	2272	Revised documents.exe	34
PID 2272 wrote to memory of 2732	2272	Revised documents.exe	34
PID 2272 wrote to memory of 2732	2272	Revised documents.exe	34
PID 2272 wrote to memory of 2732	2272	Revised documents.exe	34
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2608	2272	Revised documents.exe	36
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 2272 wrote to memory of 2620	2272	Revised documents.exe	37
PID 1184 wrote to memory of 2592	1184	Explorer.EXE	38
PID 1184 wrote to memory of 2592	1184	Explorer.EXE	38
PID 1184 wrote to memory of 2592	1184	Explorer.EXE	38
PID 1184 wrote to memory of 2592	1184	Explorer.EXE	38
PID 2592 wrote to memory of 3016	2592	wininit.exe	40
PID 2592 wrote to memory of 3016	2592	wininit.exe	40
PID 2592 wrote to memory of 3016	2592	wininit.exe	40
PID 2592 wrote to memory of 3016	2592	wininit.exe	40

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\Revised documents.exe
  "C:\Users\Admin\AppData\Local\Temp\Revised documents.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Revised documents.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2516
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fmIowyKo.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2720
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fmIowyKo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8D2.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2732
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:2608
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2620
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:2592
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD8D2.tmp

Filesize
1KB

MD5
9f9fc00f71256aacb29987f4570af805

SHA1
35c718047c8ab0c6d34686921d95899e9ec20eab

SHA256
c5d509201efe63a4dc0274fe9a149802f25210f2b2a04415453bd5b999b7e808

SHA512
31e565ee3cc49c2cd286679284512b3ae01fe647e543936a25d2b321bf496c816ef79c00f6d4438d420dd6d9f2c5ef3f47f608a4223680e8e8f574e155c68af4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
847076a99f5ce7c4a96d626525318be6

SHA1
d60d9eb8653d9ad024a81923af8d2ff550edeb2e

SHA256
bf952b2c0e29b0a08450b1591a634c671908a87eb7b5f97c3265c7bdb2176d6c

SHA512
21cd7ac62e1c4f0484b8ab94eddf16a1889a4ad69c827b0bdb3468865aeb30106d4237a3759433d0c0c9395eec7a0241149b52bfb50cfa4d3ef2aae83eca8d23

Download Submit
memory/2272-4-0x0000000000A90000-0x0000000000AAE000-memory.dmp

Filesize
120KB

Download
memory/2272-1-0x0000000000980000-0x0000000000A3E000-memory.dmp

Filesize
760KB

Download
memory/2272-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2272-5-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2272-6-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-7-0x00000000008E0000-0x0000000000958000-memory.dmp

Filesize
480KB

Download
memory/2272-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2272-3-0x0000000004A00000-0x0000000004AB2000-memory.dmp

Filesize
712KB

Download
memory/2272-26-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/2592-28-0x0000000000500000-0x000000000051A000-memory.dmp

Filesize
104KB

Download
memory/2592-29-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2620-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2620-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2620-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download