formbook | 23808b7d7764dc5d702974b63f7b15c92d86e0ca95826edb47b2f919d911b9c8

Analysis

max time kernel
150s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
16/04/2025, 13:10

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General

Target

NEW PO-01100177.exe
Size

680KB
MD5

b67c6908e5984a477acc1972d06fc6c1
SHA1

d72884b0aaea09caaec12367e08c729d5cc809fc
SHA256

23808b7d7764dc5d702974b63f7b15c92d86e0ca95826edb47b2f919d911b9c8
SHA512

40ce08028ff9d1724ea703d4619b1ff6f52feb0691f525f2bed807d75f3554f9edbe929e438b5c6f53c3a4c65e0e0e4305bd923b738d4b9b85d96dd2ff70fa55
SSDEEP

12288:Y1J2iN0f2ThrB3sxvLeo3uzNNWasMKGHoAdMhkMvmrFlYuEegQk1hNN0+aU4egZy:w1WfKhrB4vio3uzeasKoAdMhoAR1hNNz

Score

10^/10

formbook bi14 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi14

Decoy

ilansocials.online

rishticodiegfortyseven.online

ostase-ba.cfd

cinema.tech

omprasyacol.store

esir.shop

umhyal3gvbpl.xyz

lurv.wtf

aospin-sms.xyz

itness-apps-workout1.sbs

reshcarluxury.shop

3xq3.cyou

erraceheatpassion.lifestyle

octurasys.net

ilyrug.net

yj889.xyz

railertof.net

4270766.xyz

sduoduo11.sbs

oeboom.net

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/1104-43-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1104-87-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5152-89-0x0000000000A00000-0x0000000000A2F000-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
1856	powershell.exe
4896	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 1104	1752	NEW PO-01100177.exe	84
PID 1104 set thread context of 3324	1104	vbc.exe	52
PID 1104 set thread context of 3324	1104	vbc.exe	52
PID 5152 set thread context of 3324	5152	systray.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NEW PO-01100177.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	systray.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
808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
1752	NEW PO-01100177.exe
1752	NEW PO-01100177.exe
1752	NEW PO-01100177.exe
1752	NEW PO-01100177.exe
1856	powershell.exe
4896	powershell.exe
1752	NEW PO-01100177.exe
1104	vbc.exe
1104	vbc.exe
1104	vbc.exe
1104	vbc.exe
4896	powershell.exe
1856	powershell.exe
1104	vbc.exe
1104	vbc.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe
5152	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3324	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1104	vbc.exe
1104	vbc.exe
1104	vbc.exe
1104	vbc.exe
5152	systray.exe
5152	systray.exe

Suspicious use of AdjustPrivilegeToken 57 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	NEW PO-01100177.exe
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeDebugPrivilege	4896	powershell.exe
Token: SeDebugPrivilege	1104	vbc.exe
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeDebugPrivilege	5152	systray.exe
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE
Token: SeShutdownPrivilege	3324	Explorer.EXE
Token: SeCreatePagefilePrivilege	3324	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1856	1752	NEW PO-01100177.exe	78
PID 1752 wrote to memory of 1856	1752	NEW PO-01100177.exe	78
PID 1752 wrote to memory of 1856	1752	NEW PO-01100177.exe	78
PID 1752 wrote to memory of 4896	1752	NEW PO-01100177.exe	80
PID 1752 wrote to memory of 4896	1752	NEW PO-01100177.exe	80
PID 1752 wrote to memory of 4896	1752	NEW PO-01100177.exe	80
PID 1752 wrote to memory of 808	1752	NEW PO-01100177.exe	81
PID 1752 wrote to memory of 808	1752	NEW PO-01100177.exe	81
PID 1752 wrote to memory of 808	1752	NEW PO-01100177.exe	81
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 1752 wrote to memory of 1104	1752	NEW PO-01100177.exe	84
PID 3324 wrote to memory of 5152	3324	Explorer.EXE	85
PID 3324 wrote to memory of 5152	3324	Explorer.EXE	85
PID 3324 wrote to memory of 5152	3324	Explorer.EXE	85
PID 5152 wrote to memory of 5072	5152	systray.exe	86
PID 5152 wrote to memory of 5072	5152	systray.exe	86
PID 5152 wrote to memory of 5072	5152	systray.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3324
- C:\Users\Admin\AppData\Local\Temp\NEW PO-01100177.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW PO-01100177.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1752
- - 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\NEW PO-01100177.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1856
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SuiJsyGWbX.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4896
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SuiJsyGWbX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9BA4.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:808
- - 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:1104
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:5152
- - 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:5072

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
cac6c0920db2176cab863ab234ac3f5d

SHA1
98742f8afabaf3107d0103403ca546915ce84a8c

SHA256
af1da2cc72be4ff52952757c6c301a3b981a8c97d069cce880d197ae261ecf99

SHA512
70e2b2d3fe7bd1a9a9d61997f691a64bc2be5e08c2baa968f07d8d8b553f622eb02086a27dd5f2077d1ae274af4d1492bab10219fe93ddaaca107089059357ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kcdeexgf.v2d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9BA4.tmp

Filesize
1KB

MD5
72d58c35c7178af07bb838339bbf6f50

SHA1
e3be0ea042f6914c6bf385b2c4fd71e015822988

SHA256
d51334f6a2dbb68b42409fb50a49de50dd038d49c4afe63573f81a14a14164cb

SHA512
50f1dcd55a3da00e088de336bceeac84a989bf0380ce59725fa8ed2cca65bf36e581d15dcfa1dabb7735e7be9af938d37418d1f2d72cf80d10f85e8371bd6fc3

Download Submit
memory/1104-43-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1104-87-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1752-46-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1752-3-0x00000000052A0000-0x0000000005332000-memory.dmp

Filesize
584KB

Download
memory/1752-5-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1752-6-0x0000000005290000-0x000000000529A000-memory.dmp

Filesize
40KB

Download
memory/1752-7-0x00000000054E0000-0x00000000054F2000-memory.dmp

Filesize
72KB

Download
memory/1752-8-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1752-9-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1752-10-0x00000000080E0000-0x000000000815A000-memory.dmp

Filesize
488KB

Download
memory/1752-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1752-1-0x0000000000880000-0x000000000092C000-memory.dmp

Filesize
688KB

Download
memory/1752-2-0x00000000059A0000-0x0000000005F46000-memory.dmp

Filesize
5.6MB

Download
memory/1752-4-0x00000000053F0000-0x000000000548C000-memory.dmp

Filesize
624KB

Download
memory/1856-17-0x0000000004F40000-0x000000000556A000-memory.dmp

Filesize
6.2MB

Download
memory/1856-19-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1856-24-0x0000000004E70000-0x0000000004E92000-memory.dmp

Filesize
136KB

Download
memory/1856-31-0x00000000056D0000-0x0000000005736000-memory.dmp

Filesize
408KB

Download
memory/1856-30-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/1856-18-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1856-16-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1856-86-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/1856-15-0x0000000002410000-0x0000000002446000-memory.dmp

Filesize
216KB

Download
memory/1856-67-0x0000000074D80000-0x0000000074DCC000-memory.dmp

Filesize
304KB

Download
memory/3324-91-0x0000000005B10000-0x0000000005BD4000-memory.dmp

Filesize
784KB

Download
memory/4896-21-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/4896-77-0x00000000079C0000-0x00000000079D5000-memory.dmp

Filesize
84KB

Download
memory/4896-50-0x00000000075C0000-0x00000000075F4000-memory.dmp

Filesize
208KB

Download
memory/4896-61-0x0000000007630000-0x00000000076D4000-memory.dmp

Filesize
656KB

Download
memory/4896-63-0x0000000007770000-0x000000000778A000-memory.dmp

Filesize
104KB

Download
memory/4896-62-0x0000000007DB0000-0x000000000842A000-memory.dmp

Filesize
6.5MB

Download
memory/4896-64-0x00000000077F0000-0x00000000077FA000-memory.dmp

Filesize
40KB

Download
memory/4896-65-0x0000000007A00000-0x0000000007A96000-memory.dmp

Filesize
600KB

Download
memory/4896-66-0x0000000007980000-0x0000000007991000-memory.dmp

Filesize
68KB

Download
memory/4896-51-0x0000000074D80000-0x0000000074DCC000-memory.dmp

Filesize
304KB

Download
memory/4896-76-0x00000000079B0000-0x00000000079BE000-memory.dmp

Filesize
56KB

Download
memory/4896-60-0x0000000007600000-0x000000000761E000-memory.dmp

Filesize
120KB

Download
memory/4896-78-0x0000000007AC0000-0x0000000007ADA000-memory.dmp

Filesize
104KB

Download
memory/4896-79-0x0000000007AB0000-0x0000000007AB8000-memory.dmp

Filesize
32KB

Download
memory/4896-82-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/4896-49-0x0000000006950000-0x000000000699C000-memory.dmp

Filesize
304KB

Download
memory/4896-48-0x0000000006410000-0x000000000642E000-memory.dmp

Filesize
120KB

Download
memory/4896-45-0x0000000005F70000-0x00000000062C7000-memory.dmp

Filesize
3.3MB

Download
memory/4896-22-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/4896-20-0x00000000744D0000-0x0000000074C81000-memory.dmp

Filesize
7.7MB

Download
memory/5152-89-0x0000000000A00000-0x0000000000A2F000-memory.dmp

Filesize
188KB

Download
memory/5152-88-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download