formbook | 19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 19:36

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General

Target

paymentinfo.exe
Size

675KB
MD5

d3a2936e355fc5b62c309d80aa65e9b4
SHA1

d7bafe72a3a8a9e06901155cdbf020d98f2535d7
SHA256

19c20b84bd28cc534ea649747488dff45cb53539aaedc936ee2854f93cd6e368
SHA512

01946f702c5af9696444a4c5d1db50390a53b2c0d849acb15c6079db32c3d7834492b357554d0daaab233c7e5024e452ecf6262bd23015558c0fc55abd81f116
SSDEEP

12288:BXcTTpuOZhzNA50jBIiIe/S+wi+2n7nw17jIBd5a:BcEsdmGI7eK+5+2nmjI4

Score

10^/10

formbook a01d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a01d

Decoy

eniorshousing05.shop

rywisevas.biz

4726.pizza

itchen-design-42093.bond

3456.tech

4825.plus

nlinecraps.xyz

itamins-52836.bond

nfluencer-marketing-40442.bond

nline-advertising-58573.bond

rautogroups.net

limbtrip.net

oftware-download-14501.bond

nline-advertising-66733.bond

erity.xyz

xknrksi.icu

x-ist.club

yber-security-26409.bond

oincatch.xyz

onitoring-devices-34077.bond

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/4076-45-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2836-91-0x0000000000570000-0x000000000059F000-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
1364	powershell.exe
3516	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	paymentinfo.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4976 set thread context of 4076	4976	paymentinfo.exe	92
PID 4076 set thread context of 3496	4076	RegSvcs.exe	56
PID 2836 set thread context of 3496	2836	cscript.exe	56

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	paymentinfo.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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.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
2848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
4976	paymentinfo.exe
1364	powershell.exe
3516	powershell.exe
4976	paymentinfo.exe
4976	paymentinfo.exe
1364	powershell.exe
4076	RegSvcs.exe
4076	RegSvcs.exe
4076	RegSvcs.exe
4076	RegSvcs.exe
3516	powershell.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe
2836	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4076	RegSvcs.exe
4076	RegSvcs.exe
4076	RegSvcs.exe
2836	cscript.exe
2836	cscript.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	4976	paymentinfo.exe
Token: SeDebugPrivilege	1364	powershell.exe
Token: SeDebugPrivilege	3516	powershell.exe
Token: SeDebugPrivilege	4076	RegSvcs.exe
Token: SeDebugPrivilege	2836	cscript.exe
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE
Token: SeShutdownPrivilege	3496	Explorer.EXE
Token: SeCreatePagefilePrivilege	3496	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4976	paymentinfo.exe
3496	Explorer.EXE
3496	Explorer.EXE

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4976	paymentinfo.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3496	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 1364	4976	paymentinfo.exe	86
PID 4976 wrote to memory of 1364	4976	paymentinfo.exe	86
PID 4976 wrote to memory of 1364	4976	paymentinfo.exe	86
PID 4976 wrote to memory of 3516	4976	paymentinfo.exe	88
PID 4976 wrote to memory of 3516	4976	paymentinfo.exe	88
PID 4976 wrote to memory of 3516	4976	paymentinfo.exe	88
PID 4976 wrote to memory of 2848	4976	paymentinfo.exe	90
PID 4976 wrote to memory of 2848	4976	paymentinfo.exe	90
PID 4976 wrote to memory of 2848	4976	paymentinfo.exe	90
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 4976 wrote to memory of 4076	4976	paymentinfo.exe	92
PID 3496 wrote to memory of 2836	3496	Explorer.EXE	93
PID 3496 wrote to memory of 2836	3496	Explorer.EXE	93
PID 3496 wrote to memory of 2836	3496	Explorer.EXE	93
PID 2836 wrote to memory of 4660	2836	cscript.exe	94
PID 2836 wrote to memory of 4660	2836	cscript.exe	94
PID 2836 wrote to memory of 4660	2836	cscript.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Users\Admin\AppData\Local\Temp\paymentinfo.exe
  "C:\Users\Admin\AppData\Local\Temp\paymentinfo.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4976
- - 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\paymentinfo.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1364
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rBchflGYc.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3516
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rBchflGYc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDBAA.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2848
- - 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:4076
- 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:2836
- - 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:4660

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

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

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

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
0c4118c3c6c00f95b66c9cc1f00e2298

SHA1
3aa7fcbd40ee94645b91c2a12c7bc30bcab49934

SHA256
992318cba9d49c3947a634a71c971bc5e3b17f2e977e980570fba7c721018d68

SHA512
b161d322359cdb7d7acc3cdc070e290d456d438755df10a2de5db97ae22898f27c73853f2f2eba5d445495c80eb3f21884731b1cd4cf31664aee3352cba0d4e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fouhosjo.jes.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
600bf45130191a5a57c5ae1de7b38f87

SHA1
5f77963d41e94ba27562402e060ee5a4245876cb

SHA256
e5fa83c530e8332754fc3eb36ae400f3e05d7b0fca673b22488723800262c23b

SHA512
55b8ce42490311c39c3e298f776c330eb62f3b302f1bf6812f652d71b4f84c3d845ce7748e57c75d267f32b6f17d11268f34e23758d9b693e3517ccd1c2a4b5e

Download Submit
memory/1364-77-0x00000000073E0000-0x0000000007476000-memory.dmp

Filesize
600KB

Download
memory/1364-62-0x0000000075690000-0x00000000756DC000-memory.dmp

Filesize
304KB

Download
memory/1364-50-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

Filesize
304KB

Download
memory/1364-49-0x0000000005E40000-0x0000000005E5E000-memory.dmp

Filesize
120KB

Download
memory/1364-90-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1364-76-0x00000000071E0000-0x00000000071EA000-memory.dmp

Filesize
40KB

Download
memory/1364-75-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/1364-15-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1364-16-0x0000000004870000-0x00000000048A6000-memory.dmp

Filesize
216KB

Download
memory/1364-17-0x0000000005040000-0x0000000005668000-memory.dmp

Filesize
6.2MB

Download
memory/1364-18-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/1364-19-0x0000000004D70000-0x0000000004D92000-memory.dmp

Filesize
136KB

Download
memory/1364-21-0x0000000004FB0000-0x0000000005016000-memory.dmp

Filesize
408KB

Download
memory/1364-20-0x0000000004E10000-0x0000000004E76000-memory.dmp

Filesize
408KB

Download
memory/1364-74-0x00000000077B0000-0x0000000007E2A000-memory.dmp

Filesize
6.5MB

Download
memory/1364-24-0x0000000005670000-0x00000000059C4000-memory.dmp

Filesize
3.3MB

Download
memory/2836-91-0x0000000000570000-0x000000000059F000-memory.dmp

Filesize
188KB

Download
memory/2836-82-0x0000000000440000-0x0000000000467000-memory.dmp

Filesize
156KB

Download
memory/3496-94-0x0000000002A50000-0x0000000002B21000-memory.dmp

Filesize
836KB

Download
memory/3516-51-0x00000000068A0000-0x00000000068D2000-memory.dmp

Filesize
200KB

Download
memory/3516-71-0x0000000006880000-0x000000000689E000-memory.dmp

Filesize
120KB

Download
memory/3516-40-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3516-86-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3516-23-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3516-52-0x0000000075690000-0x00000000756DC000-memory.dmp

Filesize
304KB

Download
memory/3516-78-0x0000000007810000-0x0000000007821000-memory.dmp

Filesize
68KB

Download
memory/3516-79-0x0000000007840000-0x000000000784E000-memory.dmp

Filesize
56KB

Download
memory/3516-83-0x0000000007930000-0x0000000007938000-memory.dmp

Filesize
32KB

Download
memory/3516-73-0x00000000072B0000-0x0000000007353000-memory.dmp

Filesize
652KB

Download
memory/3516-22-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/3516-81-0x0000000007950000-0x000000000796A000-memory.dmp

Filesize
104KB

Download
memory/3516-80-0x0000000007850000-0x0000000007864000-memory.dmp

Filesize
80KB

Download
memory/4076-45-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4976-3-0x0000000005500000-0x0000000005592000-memory.dmp

Filesize
584KB

Download
memory/4976-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/4976-9-0x0000000002E60000-0x0000000002EDA000-memory.dmp

Filesize
488KB

Download
memory/4976-10-0x000000000D880000-0x000000000D91C000-memory.dmp

Filesize
624KB

Download
memory/4976-4-0x00000000054A0000-0x00000000054AA000-memory.dmp

Filesize
40KB

Download
memory/4976-5-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4976-7-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/4976-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

Filesize
5.6MB

Download
memory/4976-8-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download
memory/4976-1-0x0000000000A00000-0x0000000000AAE000-memory.dmp

Filesize
696KB

Download
memory/4976-6-0x0000000005860000-0x000000000587E000-memory.dmp

Filesize
120KB

Download
memory/4976-48-0x0000000074DE0000-0x0000000075590000-memory.dmp

Filesize
7.7MB

Download