formbook | 1117ea5185a8c16dbc9af96cbb580f5ac55a5f4bc0963e149c83a6c9c35dba7a

General

Target

Ylvjcujvcjtsqv.exe
Size

2.8MB
MD5

9036abae6529a51f5d50825d88dc95a4
SHA1

5c10c6dc6146db9f545dd1e8fbac70fe2c333a8a
SHA256

1117ea5185a8c16dbc9af96cbb580f5ac55a5f4bc0963e149c83a6c9c35dba7a
SHA512

d9a9ce7096cc24985e8f2731e67e57abf7f24ea5213051b15a7951731db263f7a741b955fa672157c46d9e69ef5df614148b95ffbff246f7999df610be854c47
SSDEEP

49152:Xm/PpH8yc0/wU2lpe63ZrxKrVEbRIqiPt41uFehg1mQzZ:XOpcyV/wjpdZrxEVEtI14wqnY

Score

10^/10

formbook modiloader ao65 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ao65

Decoy

spins2023.pro

foodontario.com

jsnmz.com

canwealljustagree.com

shopthedivine.store

thelakahealth.com

kuis-raja-borong.website

hbqc2.com

optimusvisionlb.com

urdulatest.com

akhayarplus.com

info-antai-service.com

kermisbedrijfkramer.online

epansion.com

gxqingmeng.top

maltsky.net

ictwath.com

sharmafootcare.com

mycheese.net

portfoliotestkitchen.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2396-10-0x0000000002570000-0x0000000003570000-memory.dmp	formbook
behavioral2/memory/2396-14-0x0000000002570000-0x0000000003570000-memory.dmp	formbook
behavioral2/memory/4804-20-0x0000000001260000-0x000000000128F000-memory.dmp	formbook
behavioral2/memory/4804-22-0x0000000001260000-0x000000000128F000-memory.dmp	formbook

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4896-3-0x0000000004520000-0x0000000005520000-memory.dmp	modiloader_stage2

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Ylvjcujvcjtsqv.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3635043082-2972811465-3176142135-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ylvjcujv = "C:\\Users\\Public\\Ylvjcujv.url"	Ylvjcujvcjtsqv.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SndVol.exehelp.exe

description	pid	process	target process
PID 2396 set thread context of 3172	2396	SndVol.exe	Explorer.EXE
PID 4804 set thread context of 3172	4804	help.exe	Explorer.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	50	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 52 IoCs

Processes:

Ylvjcujvcjtsqv.exeSndVol.exehelp.exe

pid	process
4896	Ylvjcujvcjtsqv.exe
4896	Ylvjcujvcjtsqv.exe
2396	SndVol.exe
2396	SndVol.exe
2396	SndVol.exe
2396	SndVol.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe
4804	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3172 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

SndVol.exehelp.exe

pid process

2396 SndVol.exe
2396 SndVol.exe
2396 SndVol.exe
4804 help.exe
4804 help.exe

pid	process
3172	Explorer.EXE

pid	process
2396	SndVol.exe
2396	SndVol.exe
2396	SndVol.exe
4804	help.exe
4804	help.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

SndVol.exeExplorer.EXEhelp.exe

description	pid	process
Token: SeDebugPrivilege	2396	SndVol.exe
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeShutdownPrivilege	3172	Explorer.EXE
Token: SeCreatePagefilePrivilege	3172	Explorer.EXE
Token: SeDebugPrivilege	4804	help.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

SndVol.exe

pid process

2396 SndVol.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

SndVol.exe

pid process

2396 SndVol.exe
2396 SndVol.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3172 Explorer.EXE

pid	process
2396	SndVol.exe

pid	process
2396	SndVol.exe
2396	SndVol.exe

pid	process
3172	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Ylvjcujvcjtsqv.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 4896 wrote to memory of 2396	4896	Ylvjcujvcjtsqv.exe	SndVol.exe
PID 4896 wrote to memory of 2396	4896	Ylvjcujvcjtsqv.exe	SndVol.exe
PID 4896 wrote to memory of 2396	4896	Ylvjcujvcjtsqv.exe	SndVol.exe
PID 4896 wrote to memory of 2396	4896	Ylvjcujvcjtsqv.exe	SndVol.exe
PID 3172 wrote to memory of 4804	3172	Explorer.EXE	help.exe
PID 3172 wrote to memory of 4804	3172	Explorer.EXE	help.exe
PID 3172 wrote to memory of 4804	3172	Explorer.EXE	help.exe
PID 4804 wrote to memory of 4828	4804	help.exe	cmd.exe
PID 4804 wrote to memory of 4828	4804	help.exe	cmd.exe
PID 4804 wrote to memory of 4828	4804	help.exe	cmd.exe

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:3172

C:\Users\Admin\AppData\Local\Temp\Ylvjcujvcjtsqv.exe
"C:\Users\Admin\AppData\Local\Temp\Ylvjcujvcjtsqv.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4896

C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2396

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\SndVol.exe"
3⤵
PID:4828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2396-14-0x0000000002570000-0x0000000003570000-memory.dmp

Filesize
16.0MB

Download
memory/2396-15-0x0000000015D80000-0x0000000015D95000-memory.dmp

Filesize
84KB

Download
memory/2396-10-0x0000000002570000-0x0000000003570000-memory.dmp

Filesize
16.0MB

Download
memory/2396-12-0x0000000015F70000-0x00000000162BA000-memory.dmp

Filesize
3.3MB

Download
memory/3172-29-0x0000000007D00000-0x0000000007DE5000-memory.dmp

Filesize
916KB

Download
memory/3172-26-0x0000000007D00000-0x0000000007DE5000-memory.dmp

Filesize
916KB

Download
memory/3172-25-0x0000000007D00000-0x0000000007DE5000-memory.dmp

Filesize
916KB

Download
memory/3172-16-0x00000000082D0000-0x0000000008452000-memory.dmp

Filesize
1.5MB

Download
memory/4804-22-0x0000000001260000-0x000000000128F000-memory.dmp

Filesize
188KB

Download
memory/4804-17-0x0000000000080000-0x0000000000087000-memory.dmp

Filesize
28KB

Download
memory/4804-18-0x0000000000080000-0x0000000000087000-memory.dmp

Filesize
28KB

Download
memory/4804-20-0x0000000001260000-0x000000000128F000-memory.dmp

Filesize
188KB

Download
memory/4804-21-0x0000000001A10000-0x0000000001D5A000-memory.dmp

Filesize
3.3MB

Download
memory/4804-24-0x00000000017B0000-0x0000000001844000-memory.dmp

Filesize
592KB

Download
memory/4896-9-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/4896-5-0x0000000000400000-0x00000000006DA000-memory.dmp

Filesize
2.9MB

Download
memory/4896-0-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/4896-3-0x0000000004520000-0x0000000005520000-memory.dmp

Filesize
16.0MB

Download
memory/4896-2-0x0000000000400000-0x00000000006DA000-memory.dmp

Filesize
2.9MB

Download
memory/4896-1-0x0000000004520000-0x0000000005520000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads