formbook | be838fc4e67ed12838f4d0ec554524d54e80a03a3949ced4edfb958edbcb24b8

Analysis

max time kernel
150s
max time network
136s
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, 13:44

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General

Target

REVISED PO009988.exe
Size

646KB
MD5

ba5b2fbbda46bc857101b8737700f671
SHA1

d07d211aeb27c0fb7fdef5956791fccfed6494f1
SHA256

be838fc4e67ed12838f4d0ec554524d54e80a03a3949ced4edfb958edbcb24b8
SHA512

e7503c578b2ee30dcfe9deced81fd206fa50362a1df9f6d2c6fc5e07d70a9a735750470027617d999e4aeedaaa21e806bcb6374c92246f67daf000bf3229f456
SSDEEP

12288:/sf2Thr0xWYGf0iuHfRvb3bvAGv/qlxm2y3A5fYQIkR:UfKhr6WYmTuHKGvClkMgQf

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 2 IoCs

rat

resource	yara_rule
behavioral2/memory/2324-34-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1916-89-0x0000000000B50000-0x0000000000B7F000-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
4448	powershell.exe
4980	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 3660 set thread context of 2324	3660	REVISED PO009988.exe	84
PID 2324 set thread context of 3256	2324	vbc.exe	52
PID 1916 set thread context of 3256	1916	raserver.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	REVISED PO009988.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	raserver.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
3148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 63 IoCs

pid	Process
3660	REVISED PO009988.exe
3660	REVISED PO009988.exe
3660	REVISED PO009988.exe
3660	REVISED PO009988.exe
4448	powershell.exe
4980	powershell.exe
3660	REVISED PO009988.exe
2324	vbc.exe
2324	vbc.exe
2324	vbc.exe
2324	vbc.exe
4448	powershell.exe
4980	powershell.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe
1916	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3256	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2324	vbc.exe
2324	vbc.exe
2324	vbc.exe
1916	raserver.exe
1916	raserver.exe

Suspicious use of AdjustPrivilegeToken 57 IoCs

description	pid	Process
Token: SeDebugPrivilege	3660	REVISED PO009988.exe
Token: SeDebugPrivilege	4448	powershell.exe
Token: SeDebugPrivilege	4980	powershell.exe
Token: SeDebugPrivilege	2324	vbc.exe
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeDebugPrivilege	1916	raserver.exe
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE
Token: SeShutdownPrivilege	3256	Explorer.EXE
Token: SeCreatePagefilePrivilege	3256	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3256	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3660 wrote to memory of 4448	3660	REVISED PO009988.exe	78
PID 3660 wrote to memory of 4448	3660	REVISED PO009988.exe	78
PID 3660 wrote to memory of 4448	3660	REVISED PO009988.exe	78
PID 3660 wrote to memory of 4980	3660	REVISED PO009988.exe	80
PID 3660 wrote to memory of 4980	3660	REVISED PO009988.exe	80
PID 3660 wrote to memory of 4980	3660	REVISED PO009988.exe	80
PID 3660 wrote to memory of 3148	3660	REVISED PO009988.exe	82
PID 3660 wrote to memory of 3148	3660	REVISED PO009988.exe	82
PID 3660 wrote to memory of 3148	3660	REVISED PO009988.exe	82
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3660 wrote to memory of 2324	3660	REVISED PO009988.exe	84
PID 3256 wrote to memory of 1916	3256	Explorer.EXE	85
PID 3256 wrote to memory of 1916	3256	Explorer.EXE	85
PID 3256 wrote to memory of 1916	3256	Explorer.EXE	85
PID 1916 wrote to memory of 4692	1916	raserver.exe	86
PID 1916 wrote to memory of 4692	1916	raserver.exe	86
PID 1916 wrote to memory of 4692	1916	raserver.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\Temp\REVISED PO009988.exe
  "C:\Users\Admin\AppData\Local\Temp\REVISED PO009988.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3660
- - 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 PO009988.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4448
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aorjhXHEYJs.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4980
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aorjhXHEYJs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD949.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3148
- - 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:2324
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:1916
- - 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:4692

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
33bac31b3ddcfeca4068459c68ac45a2

SHA1
bf9748a350a7767d54f50cfb9ef22e16f92c62ee

SHA256
dc23a1b81835485ec5f3daec5da47d7ddc4afb9fdfd379f720e076624e73725e

SHA512
6bfac9f56cf10adb220f5d5b7659853dc6d291f52d0f92f8a376dcf204c58ac0bbbcbf80f27b0b4e6e8bc321398510b5a867c93d7bd6777763bad16ae6e13393

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3toc0ktx.p0f.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD949.tmp

Filesize
1KB

MD5
0470da40c8c9fab74bfae1ef56bae9e0

SHA1
cb088b7cf9259b756e0aaeb161b935d40e69f3e1

SHA256
87bba9eb4aa556ae20d5f5f5c317031a9728c3a66ff7f845bfe08e9786e20208

SHA512
083916cc7906565b29afdaec6587b50068d81aa56679b4d45423eeda208cd3beee69f9df2bd047fd108d40d9a4b43c9361142f57661eb23109c7335b21d73250

Download Submit
memory/1916-88-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1916-87-0x0000000000330000-0x0000000000351000-memory.dmp

Filesize
132KB

Download
memory/1916-89-0x0000000000B50000-0x0000000000B7F000-memory.dmp

Filesize
188KB

Download
memory/2324-34-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3256-91-0x0000000007480000-0x00000000075A0000-memory.dmp

Filesize
1.1MB

Download
memory/3660-5-0x0000000005680000-0x000000000568A000-memory.dmp

Filesize
40KB

Download
memory/3660-10-0x0000000008000000-0x0000000008078000-memory.dmp

Filesize
480KB

Download
memory/3660-9-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/3660-0-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/3660-8-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/3660-7-0x00000000059A0000-0x00000000059B2000-memory.dmp

Filesize
72KB

Download
memory/3660-6-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/3660-4-0x0000000005710000-0x00000000057AC000-memory.dmp

Filesize
624KB

Download
memory/3660-3-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/3660-2-0x0000000005C20000-0x00000000061C6000-memory.dmp

Filesize
5.6MB

Download
memory/3660-46-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/3660-1-0x0000000000A80000-0x0000000000B24000-memory.dmp

Filesize
656KB

Download
memory/4448-16-0x0000000004EB0000-0x00000000054DA000-memory.dmp

Filesize
6.2MB

Download
memory/4448-78-0x0000000007270000-0x000000000728A000-memory.dmp

Filesize
104KB

Download
memory/4448-36-0x0000000005730000-0x0000000005A87000-memory.dmp

Filesize
3.3MB

Download
memory/4448-33-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4448-28-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/4448-29-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/4448-48-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

Filesize
120KB

Download
memory/4448-49-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

Filesize
304KB

Download
memory/4448-15-0x00000000023C0000-0x00000000023F6000-memory.dmp

Filesize
216KB

Download
memory/4448-17-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4448-18-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4448-21-0x0000000004E20000-0x0000000004E42000-memory.dmp

Filesize
136KB

Download
memory/4448-85-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4448-64-0x0000000075230000-0x000000007527C000-memory.dmp

Filesize
304KB

Download
memory/4980-73-0x0000000007100000-0x000000000710A000-memory.dmp

Filesize
40KB

Download
memory/4980-79-0x00000000073C0000-0x00000000073C8000-memory.dmp

Filesize
32KB

Download
memory/4980-74-0x0000000007310000-0x00000000073A6000-memory.dmp

Filesize
600KB

Download
memory/4980-75-0x0000000007290000-0x00000000072A1000-memory.dmp

Filesize
68KB

Download
memory/4980-76-0x00000000072C0000-0x00000000072CE000-memory.dmp

Filesize
56KB

Download
memory/4980-77-0x00000000072D0000-0x00000000072E5000-memory.dmp

Filesize
84KB

Download
memory/4980-63-0x0000000007080000-0x000000000709A000-memory.dmp

Filesize
104KB

Download
memory/4980-37-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4980-22-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4980-86-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4980-62-0x00000000076C0000-0x0000000007D3A000-memory.dmp

Filesize
6.5MB

Download
memory/4980-50-0x0000000006CB0000-0x0000000006CE4000-memory.dmp

Filesize
208KB

Download
memory/4980-19-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/4980-51-0x0000000075230000-0x000000007527C000-memory.dmp

Filesize
304KB

Download
memory/4980-61-0x0000000006F40000-0x0000000006FE4000-memory.dmp

Filesize
656KB

Download
memory/4980-60-0x0000000006D10000-0x0000000006D2E000-memory.dmp

Filesize
120KB

Download