formbook | c1daa08a1ce383a61d36ad42ca4edab5cf60cb3a8445311f4cada66260b70d6b

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/11/2024, 23:41

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General

Target

ELAN#0472940573000.exe
Size

40KB
MD5

bcc10d614981f0eed446306185ba0a3a
SHA1

cc400a605e2febdaa27b5887f55a922372b6e298
SHA256

4b7c88deb8cd20b960e2d396f24708a6018d2a1483fda51b7444b0685b3888da
SHA512

87f97bbe1a4c73b93a34ac6efa0a6b8722b0a43f17b9e805066539a65eb709289ef26d4bdb9f53e174cb41116a9e0d26014495e3b6e90470d631b68c6f1c7147
SSDEEP

768:W33QdsUZYRx8OC0cKRSbA7vJRc8GvPQoA0BAtHzae6M:WHQFY8OC0VSbqvJRc8GvPQoRBAtKM

Score

10^/10

formbook tomx discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

tomx

Decoy

fistlike.website

marks-denki.cloud

6zn3wp.top

warehouse-services-86876.bond

voidcast.lol

bathroom-remodeling-50828.bond

freedentalimplants15.site

virtual-assistant-81181.bond

v48s6d5.shop

bizkairo.com

midwesterne.click

d008otoeq.site

chantroimoi586.click

folsomtakesaction.net

healthcare-software-10982.bond

paths2healing.net

interac-pay24.shop

campaigncrushconsultants.world

uui3960.top

bagiqqa.biz

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4352-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4352-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1740-23-0x0000000000AB0000-0x0000000000ADF000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ELAN#0472940573000 = "C:\\Users\\Admin\\Documents\\ELAN#0472940573000.pif"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4660 set thread context of 4352	4660	ELAN#0472940573000.exe	95
PID 4352 set thread context of 3520	4352	ELAN#0472940573000.exe	56
PID 1740 set thread context of 3520	1740	chkdsk.exe	56

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	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ELAN#0472940573000.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4660	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe
1740	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4352	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
4352	ELAN#0472940573000.exe
1740	chkdsk.exe
1740	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4660	ELAN#0472940573000.exe
Token: SeDebugPrivilege	4352	ELAN#0472940573000.exe
Token: SeDebugPrivilege	1740	chkdsk.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3520	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 4204	4660	ELAN#0472940573000.exe	88
PID 4660 wrote to memory of 4204	4660	ELAN#0472940573000.exe	88
PID 4660 wrote to memory of 4204	4660	ELAN#0472940573000.exe	88
PID 4204 wrote to memory of 2016	4204	cmd.exe	90
PID 4204 wrote to memory of 2016	4204	cmd.exe	90
PID 4204 wrote to memory of 2016	4204	cmd.exe	90
PID 4660 wrote to memory of 2020	4660	ELAN#0472940573000.exe	93
PID 4660 wrote to memory of 2020	4660	ELAN#0472940573000.exe	93
PID 4660 wrote to memory of 2020	4660	ELAN#0472940573000.exe	93
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 4660 wrote to memory of 4352	4660	ELAN#0472940573000.exe	95
PID 3520 wrote to memory of 1740	3520	Explorer.EXE	97
PID 3520 wrote to memory of 1740	3520	Explorer.EXE	97
PID 3520 wrote to memory of 1740	3520	Explorer.EXE	97
PID 1740 wrote to memory of 4464	1740	chkdsk.exe	98
PID 1740 wrote to memory of 4464	1740	chkdsk.exe	98
PID 1740 wrote to memory of 4464	1740	chkdsk.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe
  "C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4660
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "ELAN#0472940573000" /t REG_SZ /F /D "C:\Users\Admin\Documents\ELAN#0472940573000.pif"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4204
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "ELAN#0472940573000" /t REG_SZ /F /D "C:\Users\Admin\Documents\ELAN#0472940573000.pif"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2016
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c Copy "C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe" "C:\Users\Admin\Documents\ELAN#0472940573000.pif"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2020
- - C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe
    "C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4352
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\ELAN#0472940573000.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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/1740-23-0x0000000000AB0000-0x0000000000ADF000-memory.dmp

Filesize
188KB

Download
memory/1740-22-0x0000000000B50000-0x0000000000B5A000-memory.dmp

Filesize
40KB

Download
memory/1740-21-0x0000000000B50000-0x0000000000B5A000-memory.dmp

Filesize
40KB

Download
memory/3520-31-0x00000000086C0000-0x0000000008799000-memory.dmp

Filesize
868KB

Download
memory/3520-29-0x00000000086C0000-0x0000000008799000-memory.dmp

Filesize
868KB

Download
memory/3520-28-0x00000000086C0000-0x0000000008799000-memory.dmp

Filesize
868KB

Download
memory/3520-24-0x0000000008EF0000-0x000000000909E000-memory.dmp

Filesize
1.7MB

Download
memory/3520-20-0x0000000008EF0000-0x000000000909E000-memory.dmp

Filesize
1.7MB

Download
memory/4352-16-0x00000000013A0000-0x00000000016EA000-memory.dmp

Filesize
3.3MB

Download
memory/4352-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4352-19-0x00000000016F0000-0x0000000001704000-memory.dmp

Filesize
80KB

Download
memory/4352-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4660-6-0x0000000005860000-0x000000000586A000-memory.dmp

Filesize
40KB

Download
memory/4660-15-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4660-10-0x0000000006DE0000-0x0000000006E46000-memory.dmp

Filesize
408KB

Download
memory/4660-9-0x0000000006E80000-0x0000000006F1C000-memory.dmp

Filesize
624KB

Download
memory/4660-8-0x0000000006CD0000-0x0000000006CEE000-memory.dmp

Filesize
120KB

Download
memory/4660-7-0x0000000006C60000-0x0000000006CD6000-memory.dmp

Filesize
472KB

Download
memory/4660-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/4660-5-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4660-4-0x0000000005900000-0x0000000005976000-memory.dmp

Filesize
472KB

Download
memory/4660-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/4660-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/4660-1-0x0000000000DF0000-0x0000000000E00000-memory.dmp

Filesize
64KB

Download