formbook | 73c0f45b365444e09376cbea6f71b5f877af98eec65f809a6b078f206a6d4430

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-01-2025 20:08

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General

Target

File34456644pdf.exe
Size

650KB
MD5

d3b75622f7855cdb9f3eb8deaa37f75b
SHA1

6703d2b4e4f9c32224b9aae4a9c5a96844275de0
SHA256

73c0f45b365444e09376cbea6f71b5f877af98eec65f809a6b078f206a6d4430
SHA512

7e44ef7e8f50073083a161be1c80ffbeae7449273e08e64f0b7069abf8210a7c3d8d26a3164fe7540bb0c8105cf124cf61421c67c1fc68b1bd39a346a000b31c
SSDEEP

12288:+nApngDxqg/9CUfvN7uGDJHD8aHQHtpIKzTHucl7Xbqold4tpMRM:+n2ngcI9TfF7uGpDhHQNWK3VlLd4p

Score

10^/10

formbook a02d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.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/2732-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2628-30-0x0000000000070000-0x000000000009F000-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
2740	powershell.exe
2820	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 2732	1804	File34456644pdf.exe	37
PID 2732 set thread context of 1208	2732	RegSvcs.exe	21
PID 2628 set thread context of 1208	2628	cscript.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	File34456644pdf.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	cscript.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
3012	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1804	File34456644pdf.exe
2820	powershell.exe
2740	powershell.exe
1804	File34456644pdf.exe
2732	RegSvcs.exe
2732	RegSvcs.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe
2628	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2732	RegSvcs.exe
2732	RegSvcs.exe
2732	RegSvcs.exe
2628	cscript.exe
2628	cscript.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1804	File34456644pdf.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	2732	RegSvcs.exe
Token: SeDebugPrivilege	2628	cscript.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 2740	1804	File34456644pdf.exe	31
PID 1804 wrote to memory of 2740	1804	File34456644pdf.exe	31
PID 1804 wrote to memory of 2740	1804	File34456644pdf.exe	31
PID 1804 wrote to memory of 2740	1804	File34456644pdf.exe	31
PID 1804 wrote to memory of 2820	1804	File34456644pdf.exe	33
PID 1804 wrote to memory of 2820	1804	File34456644pdf.exe	33
PID 1804 wrote to memory of 2820	1804	File34456644pdf.exe	33
PID 1804 wrote to memory of 2820	1804	File34456644pdf.exe	33
PID 1804 wrote to memory of 3012	1804	File34456644pdf.exe	35
PID 1804 wrote to memory of 3012	1804	File34456644pdf.exe	35
PID 1804 wrote to memory of 3012	1804	File34456644pdf.exe	35
PID 1804 wrote to memory of 3012	1804	File34456644pdf.exe	35
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1804 wrote to memory of 2732	1804	File34456644pdf.exe	37
PID 1208 wrote to memory of 2628	1208	Explorer.EXE	38
PID 1208 wrote to memory of 2628	1208	Explorer.EXE	38
PID 1208 wrote to memory of 2628	1208	Explorer.EXE	38
PID 1208 wrote to memory of 2628	1208	Explorer.EXE	38
PID 2628 wrote to memory of 2960	2628	cscript.exe	39
PID 2628 wrote to memory of 2960	2628	cscript.exe	39
PID 2628 wrote to memory of 2960	2628	cscript.exe	39
PID 2628 wrote to memory of 2960	2628	cscript.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\File34456644pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\File34456644pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1804
- - 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\File34456644pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2740
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fGhkfgbyw.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2820
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fGhkfgbyw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD191.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3012
- - 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:2732
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:2628
- - 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:2960

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\tmpD191.tmp

Filesize
1KB

MD5
baa8005607f1514bf159874f87611901

SHA1
a0ae792340dae55ed62624651e65f8e58fe14842

SHA256
02dc1118e1a71f8aa8462c39b7a5ec9a80fe30a9f19a7ca49a5b73f30aa26025

SHA512
5b7ac0b878099c9051da201ca8d5c8b15145df9e951fae89bd6269079ca86b5e5d2267f8db87375a82bd8f398f83966c5931cc488efb1bf157ffcfef7cc6954d

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

Filesize
7KB

MD5
8240a176ca9a74c9f1e67409aafa5dde

SHA1
addc98f6f3842c12b75f0b1adb77661bb5d566af

SHA256
007b640b39de42805b8f5ef23d14f04b54039d12d6f3ce7f82660558dc9b13f1

SHA512
2d5ab537750e7a3c38e5aee792e90df07e56d04c2a5c52d703f5a80ee54686a8f903222ce596baa71cdc53410ec12ea8e67cddcee27bf0f20dbf4e01f6341576

Download Submit
memory/1208-28-0x0000000003B80000-0x0000000003C80000-memory.dmp

Filesize
1024KB

Download
memory/1804-4-0x00000000003C0000-0x00000000003DA000-memory.dmp

Filesize
104KB

Download
memory/1804-26-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-5-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/1804-6-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-7-0x0000000005320000-0x0000000005398000-memory.dmp

Filesize
480KB

Download
memory/1804-3-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-2-0x0000000000D50000-0x0000000000DEE000-memory.dmp

Filesize
632KB

Download
memory/1804-0-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/1804-1-0x00000000012C0000-0x0000000001368000-memory.dmp

Filesize
672KB

Download
memory/2628-30-0x0000000000070000-0x000000000009F000-memory.dmp

Filesize
188KB

Download
memory/2628-29-0x0000000000CA0000-0x0000000000CC2000-memory.dmp

Filesize
136KB

Download
memory/2732-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download