formbook | f23077e00b4f301f5875c1d4aab2e5e781921564bb4bdd63f8c46b5163b379d1

Analysis

max time kernel
149s
max time network
138s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
17/04/2025, 15:01

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General

Target

B1C90tuveZ9jFGZ.exe
Size

610KB
MD5

dfc7843f6e716725410adffe8c15848f
SHA1

5fb018743a74f72adceb85a27d8f1198482ccdc4
SHA256

6d0a73c255453a2539a63dbeae565abae36b527cd6154691b3c066f3815860ed
SHA512

48b67c99e1177be610a1ec7426e6d9dc11696ab1b86bad1a34d58561638d9b4a706ab1dd26cd653a7007c334d9cd479f6dd7cd998f68cb4483d8fc5fc2ce5c96
SSDEEP

12288:ER7gCRxFNGgFoQOCkRfPehxgoNX356+Vz91fR/BHUhr5woJ+sFOJkR:ERfhoQOCzhv56ozHR/ZGr5woYsx

Score

10^/10

formbook hi13 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hi13

Decoy

olidspot.shop

aise-your-voice.sbs

9ydygorig3l7z.xyz

netuzio.xyz

erspacehealthandwellness.info

hbnzk.cfd

uklor.shop

tudiofoti.pro

onety.skin

iralavinc.online

teelpath.shop

w-yudfjp.shop

betka.xyz

lx2cbhe5vee0e1.xyz

ndotoverf.pro

loud-sevice.click

enckubs.shop

anpack.shop

nity-3d-development.dev

iaolento12.sbs

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
behavioral2/memory/6112-43-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2348-88-0x0000000000390000-0x00000000003BF000-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
1636	powershell.exe
4192	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 6112 set thread context of 3304	6112	vbc.exe	52
PID 2348 set thread context of 3304	2348	mstsc.exe	52

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	B1C90tuveZ9jFGZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
5004	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1732	B1C90tuveZ9jFGZ.exe
1636	powershell.exe
4192	powershell.exe
1732	B1C90tuveZ9jFGZ.exe
1636	powershell.exe
6112	vbc.exe
6112	vbc.exe
6112	vbc.exe
6112	vbc.exe
4192	powershell.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe
2348	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3304	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
6112	vbc.exe
6112	vbc.exe
6112	vbc.exe
2348	mstsc.exe
2348	mstsc.exe

Suspicious use of AdjustPrivilegeToken 55 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	B1C90tuveZ9jFGZ.exe
Token: SeDebugPrivilege	1636	powershell.exe
Token: SeDebugPrivilege	4192	powershell.exe
Token: SeDebugPrivilege	6112	vbc.exe
Token: SeDebugPrivilege	2348	mstsc.exe
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE
Token: SeShutdownPrivilege	3304	Explorer.EXE
Token: SeCreatePagefilePrivilege	3304	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1636	1732	B1C90tuveZ9jFGZ.exe	78
PID 1732 wrote to memory of 1636	1732	B1C90tuveZ9jFGZ.exe	78
PID 1732 wrote to memory of 1636	1732	B1C90tuveZ9jFGZ.exe	78
PID 1732 wrote to memory of 4192	1732	B1C90tuveZ9jFGZ.exe	80
PID 1732 wrote to memory of 4192	1732	B1C90tuveZ9jFGZ.exe	80
PID 1732 wrote to memory of 4192	1732	B1C90tuveZ9jFGZ.exe	80
PID 1732 wrote to memory of 5004	1732	B1C90tuveZ9jFGZ.exe	82
PID 1732 wrote to memory of 5004	1732	B1C90tuveZ9jFGZ.exe	82
PID 1732 wrote to memory of 5004	1732	B1C90tuveZ9jFGZ.exe	82
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 1732 wrote to memory of 6112	1732	B1C90tuveZ9jFGZ.exe	84
PID 3304 wrote to memory of 2348	3304	Explorer.EXE	85
PID 3304 wrote to memory of 2348	3304	Explorer.EXE	85
PID 3304 wrote to memory of 2348	3304	Explorer.EXE	85
PID 2348 wrote to memory of 2404	2348	mstsc.exe	86
PID 2348 wrote to memory of 2404	2348	mstsc.exe	86
PID 2348 wrote to memory of 2404	2348	mstsc.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Users\Admin\AppData\Local\Temp\B1C90tuveZ9jFGZ.exe
  "C:\Users\Admin\AppData\Local\Temp\B1C90tuveZ9jFGZ.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1732
- - 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\B1C90tuveZ9jFGZ.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1636
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tKmAtmGcqvi.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4192
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tKmAtmGcqvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDEC7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5004
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:6112
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2348
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2404

Network

MITRE ATT&CK Enterprise v16

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
9185f61a4437fa1de7214be4b9c985ba

SHA1
51c7801c1ec214c629bcdd16e00aa9457e136707

SHA256
8834fd0360ba890ca793ab14109f482800edba0524d8ace49fa83dc7ce502285

SHA512
a4080718bd9d8a4f62ef55f782345cc918291f016e6ad9105019d9f00c27d6a0e43888c840fce5ec943a2c617df73c039800437d515ff621b3727226bdb7b2c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sne2i20j.5rq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDEC7.tmp

Filesize
1KB

MD5
07fca77dfdfa7c7e496c64daf007aa9a

SHA1
731d95dbd4433db4e24bfa7c91be1d4c7f4456e1

SHA256
d9f9f474086ebf235721d219c69bbbbf2c7e23fc703563d21d96d608a92e4134

SHA512
67853b8e05d1d01e995b81854dc8c00eaeb15231e5e5ca5ed1f92322edbe2a70875943588cabbf8f8e11b66c69006252132800f89104e7f18b517b8cfe0c7e13

Download Submit
memory/1636-74-0x00000000071F0000-0x0000000007201000-memory.dmp

Filesize
68KB

Download
memory/1636-73-0x0000000007270000-0x0000000007306000-memory.dmp

Filesize
600KB

Download
memory/1636-87-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1636-50-0x0000000074E30000-0x0000000074E7C000-memory.dmp

Filesize
304KB

Download
memory/1636-78-0x0000000007320000-0x0000000007328000-memory.dmp

Filesize
32KB

Download
memory/1636-77-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/1636-76-0x0000000007230000-0x0000000007245000-memory.dmp

Filesize
84KB

Download
memory/1636-15-0x00000000024D0000-0x0000000002506000-memory.dmp

Filesize
216KB

Download
memory/1636-16-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1636-17-0x00000000050A0000-0x00000000056CA000-memory.dmp

Filesize
6.2MB

Download
memory/1636-75-0x0000000007220000-0x000000000722E000-memory.dmp

Filesize
56KB

Download
memory/1636-49-0x0000000006C30000-0x0000000006C64000-memory.dmp

Filesize
208KB

Download
memory/1636-63-0x0000000007060000-0x000000000706A000-memory.dmp

Filesize
40KB

Download
memory/1636-21-0x0000000004EE0000-0x0000000004F02000-memory.dmp

Filesize
136KB

Download
memory/1636-23-0x0000000005780000-0x00000000057E6000-memory.dmp

Filesize
408KB

Download
memory/1636-48-0x0000000005D20000-0x0000000005D6C000-memory.dmp

Filesize
304KB

Download
memory/1636-33-0x00000000057F0000-0x0000000005B47000-memory.dmp

Filesize
3.3MB

Download
memory/1636-32-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1636-22-0x0000000005000000-0x0000000005066000-memory.dmp

Filesize
408KB

Download
memory/1636-62-0x0000000006FE0000-0x0000000006FFA000-memory.dmp

Filesize
104KB

Download
memory/1636-61-0x0000000007620000-0x0000000007C9A000-memory.dmp

Filesize
6.5MB

Download
memory/1636-59-0x0000000006C10000-0x0000000006C2E000-memory.dmp

Filesize
120KB

Download
memory/1636-60-0x0000000006C70000-0x0000000006D14000-memory.dmp

Filesize
656KB

Download
memory/1636-47-0x0000000005C90000-0x0000000005CAE000-memory.dmp

Filesize
120KB

Download
memory/1732-3-0x0000000005940000-0x00000000059D2000-memory.dmp

Filesize
584KB

Download
memory/1732-1-0x0000000000DB0000-0x0000000000E4C000-memory.dmp

Filesize
624KB

Download
memory/1732-5-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1732-45-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1732-7-0x0000000006AE0000-0x0000000006AF2000-memory.dmp

Filesize
72KB

Download
memory/1732-8-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/1732-9-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/1732-6-0x0000000005900000-0x000000000590A000-memory.dmp

Filesize
40KB

Download
memory/1732-4-0x00000000059E0000-0x0000000005A7C000-memory.dmp

Filesize
624KB

Download
memory/1732-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/1732-2-0x0000000005E50000-0x00000000063F6000-memory.dmp

Filesize
5.6MB

Download
memory/1732-10-0x0000000008610000-0x000000000868A000-memory.dmp

Filesize
488KB

Download
memory/2348-79-0x0000000000100000-0x000000000024E000-memory.dmp

Filesize
1.3MB

Download
memory/2348-88-0x0000000000390000-0x00000000003BF000-memory.dmp

Filesize
188KB

Download
memory/2348-80-0x0000000000100000-0x000000000024E000-memory.dmp

Filesize
1.3MB

Download
memory/3304-90-0x0000000005610000-0x00000000056EF000-memory.dmp

Filesize
892KB

Download
memory/4192-20-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/4192-83-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/4192-18-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/4192-64-0x0000000074E30000-0x0000000074E7C000-memory.dmp

Filesize
304KB

Download
memory/4192-42-0x0000000074560000-0x0000000074D11000-memory.dmp

Filesize
7.7MB

Download
memory/6112-43-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download