formbook | 5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8

General

Target

truck pictures.exe
Size

634KB
MD5

99ed5f72e5742e549a6ec78655fd3cfc
SHA1

31a4f6fc81c45e49f4787cebe622256fa74d8a06
SHA256

5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8
SHA512

45abc2973402ba0ae81b4e708c257c9e8f5fe472b1fdf969766697a5226481764b0bf8d9be8dd99effd47e7556ed0110b48b892c315d850b952ed700ac2f9711

Score

10^/10

formbook xloader cuig loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

cuig

C2

http://www.qtih.top/cuig/

Decoy

sofiathinks-elderly.net

lahamicoast.info

2shengman.com

cbsautoplex.com

arcana-candles.com

genrage.com

kukumiou.xyz

thequizerking.com

sonataproductions.com

rebuildgomnmf.xyz

ubcoin.store

yiyouxue.net

firstlifehome.com

mdx-inc.net

gotbn-c01.com

dinobrindes.store

jcm-iso.com

cliente-mais.com

mloujewelry.com

correoversoi.quest

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1180-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1180-125-0x000000000041D3F0-mapping.dmp	xloader
behavioral2/memory/2788-133-0x0000000000D00000-0x0000000000D29000-memory.dmp	xloader
behavioral2/memory/2496-155-0x000000000041D3F0-mapping.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\BV105FWXX = "C:\\Program Files (x86)\\Vprhpufwx\\kz7pttp0vhzv.exe"	netsh.exe

Executes dropped EXE 2 IoCs

Processes:

kz7pttp0vhzv.exekz7pttp0vhzv.exe

pid process

1304 kz7pttp0vhzv.exe
2496 kz7pttp0vhzv.exe

pid	process
1304	kz7pttp0vhzv.exe
2496	kz7pttp0vhzv.exe

Suspicious use of SetThreadContext 5 IoCs

Processes:

truck pictures.exetruck pictures.exenetsh.exekz7pttp0vhzv.exe

description	pid	process	target process
PID 3628 set thread context of 1180	3628	truck pictures.exe	truck pictures.exe
PID 1180 set thread context of 3024	1180	truck pictures.exe	Explorer.EXE
PID 1180 set thread context of 3024	1180	truck pictures.exe	Explorer.EXE
PID 2788 set thread context of 3024	2788	netsh.exe	Explorer.EXE
PID 1304 set thread context of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEnetsh.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe	netsh.exe
File opened for modification	C:\Program Files (x86)\Vprhpufwx	Explorer.EXE
File created	C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

truck pictures.exetruck pictures.exenetsh.exe

pid	process
3628	truck pictures.exe
3628	truck pictures.exe
3628	truck pictures.exe
3628	truck pictures.exe
3628	truck pictures.exe
3628	truck pictures.exe
3628	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE

pid	process
3024	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

truck pictures.exenetsh.exe

pid	process
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
1180	truck pictures.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe
2788	netsh.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

truck pictures.exetruck pictures.exeExplorer.EXEnetsh.exekz7pttp0vhzv.exekz7pttp0vhzv.exe

description	pid	process
Token: SeDebugPrivilege	3628	truck pictures.exe
Token: SeDebugPrivilege	1180	truck pictures.exe
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeDebugPrivilege	2788	netsh.exe
Token: SeDebugPrivilege	1304	kz7pttp0vhzv.exe
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeDebugPrivilege	2496	kz7pttp0vhzv.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE
3024 Explorer.EXE
3024 Explorer.EXE
3024 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE

pid	process
3024	Explorer.EXE
3024	Explorer.EXE
3024	Explorer.EXE
3024	Explorer.EXE

pid	process
3024	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

truck pictures.exeExplorer.EXEnetsh.exekz7pttp0vhzv.exe

description	pid	process	target process
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3628 wrote to memory of 1180	3628	truck pictures.exe	truck pictures.exe
PID 3024 wrote to memory of 2788	3024	Explorer.EXE	netsh.exe
PID 3024 wrote to memory of 2788	3024	Explorer.EXE	netsh.exe
PID 3024 wrote to memory of 2788	3024	Explorer.EXE	netsh.exe
PID 2788 wrote to memory of 3500	2788	netsh.exe	cmd.exe
PID 2788 wrote to memory of 3500	2788	netsh.exe	cmd.exe
PID 2788 wrote to memory of 3500	2788	netsh.exe	cmd.exe
PID 2788 wrote to memory of 3712	2788	netsh.exe	Firefox.exe
PID 2788 wrote to memory of 3712	2788	netsh.exe	Firefox.exe
PID 3024 wrote to memory of 1304	3024	Explorer.EXE	kz7pttp0vhzv.exe
PID 3024 wrote to memory of 1304	3024	Explorer.EXE	kz7pttp0vhzv.exe
PID 3024 wrote to memory of 1304	3024	Explorer.EXE	kz7pttp0vhzv.exe
PID 2788 wrote to memory of 3712	2788	netsh.exe	Firefox.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe
PID 1304 wrote to memory of 2496	1304	kz7pttp0vhzv.exe	kz7pttp0vhzv.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\truck pictures.exe
"C:\Users\Admin\AppData\Local\Temp\truck pictures.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3628

C:\Users\Admin\AppData\Local\Temp\truck pictures.exe
"C:\Users\Admin\AppData\Local\Temp\truck pictures.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1180

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\truck pictures.exe"
3⤵
PID:3500

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3712

C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe
"C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304

C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe
"C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe
MD5
99ed5f72e5742e549a6ec78655fd3cfc

SHA1
31a4f6fc81c45e49f4787cebe622256fa74d8a06

SHA256
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8

SHA512
45abc2973402ba0ae81b4e708c257c9e8f5fe472b1fdf969766697a5226481764b0bf8d9be8dd99effd47e7556ed0110b48b892c315d850b952ed700ac2f9711

Download Submit
C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe
MD5
99ed5f72e5742e549a6ec78655fd3cfc

SHA1
31a4f6fc81c45e49f4787cebe622256fa74d8a06

SHA256
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8

SHA512
45abc2973402ba0ae81b4e708c257c9e8f5fe472b1fdf969766697a5226481764b0bf8d9be8dd99effd47e7556ed0110b48b892c315d850b952ed700ac2f9711

Download Submit
C:\Program Files (x86)\Vprhpufwx\kz7pttp0vhzv.exe
MD5
99ed5f72e5742e549a6ec78655fd3cfc

SHA1
31a4f6fc81c45e49f4787cebe622256fa74d8a06

SHA256
5c8f31380d956958134331ea55e63835fd16ca1f02f4c81672b69db70bc97ab8

SHA512
45abc2973402ba0ae81b4e708c257c9e8f5fe472b1fdf969766697a5226481764b0bf8d9be8dd99effd47e7556ed0110b48b892c315d850b952ed700ac2f9711

Download Submit
memory/1180-127-0x0000000001790000-0x00000000017A1000-memory.dmp

Filesize
68KB

Download
memory/1180-129-0x0000000003190000-0x00000000031A1000-memory.dmp

Filesize
68KB

Download
memory/1180-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1180-125-0x000000000041D3F0-mapping.dmp

Download
memory/1180-126-0x0000000001420000-0x0000000001740000-memory.dmp

Filesize
3.1MB

Download
memory/1304-148-0x00000000054C0000-0x00000000059BE000-memory.dmp

Filesize
5.0MB

Download
memory/1304-138-0x0000000000000000-mapping.dmp

Download
memory/2496-157-0x0000000001830000-0x0000000001B50000-memory.dmp

Filesize
3.1MB

Download
memory/2496-155-0x000000000041D3F0-mapping.dmp

Download
memory/2788-131-0x0000000000000000-mapping.dmp

Download
memory/2788-136-0x00000000033C0000-0x0000000003450000-memory.dmp

Filesize
576KB

Download
memory/2788-133-0x0000000000D00000-0x0000000000D29000-memory.dmp

Filesize
164KB

Download
memory/2788-132-0x0000000001080000-0x000000000109E000-memory.dmp

Filesize
120KB

Download
memory/2788-135-0x00000000030A0000-0x00000000033C0000-memory.dmp

Filesize
3.1MB

Download
memory/3024-128-0x0000000005240000-0x0000000005361000-memory.dmp

Filesize
1.1MB

Download
memory/3024-130-0x0000000005370000-0x000000000543A000-memory.dmp

Filesize
808KB

Download
memory/3024-137-0x0000000006050000-0x0000000006132000-memory.dmp

Filesize
904KB

Download
memory/3500-134-0x0000000000000000-mapping.dmp

Download
memory/3628-122-0x00000000057C0000-0x0000000005820000-memory.dmp

Filesize
384KB

Download
memory/3628-114-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/3628-123-0x0000000007D00000-0x0000000007D2B000-memory.dmp

Filesize
172KB

Download
memory/3628-121-0x0000000004D90000-0x0000000004D91000-memory.dmp

Filesize
4KB

Download
memory/3628-120-0x0000000004CD0000-0x0000000004CD7000-memory.dmp

Filesize
28KB

Download
memory/3628-119-0x0000000004C30000-0x0000000004C31000-memory.dmp

Filesize
4KB

Download
memory/3628-118-0x0000000004A50000-0x0000000004AE2000-memory.dmp

Filesize
584KB

Download
memory/3628-117-0x0000000004B60000-0x0000000004B61000-memory.dmp

Filesize
4KB

Download
memory/3628-116-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download
memory/3712-149-0x0000000000000000-mapping.dmp

Download
memory/3712-151-0x0000024337840000-0x00000243378EA000-memory.dmp

Filesize
680KB

Download
memory/3712-150-0x00007FF758630000-0x00007FF7586C3000-memory.dmp

Filesize
588KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads