formbook | e1622c22652985746a1bcb494d8e73efb6d56273f704401b33624ef6062f9a54

General

Target

Opik_lk.exe
Size

601KB
MD5

389c7a57f85a5abbc5f7d4f38d8c1188
SHA1

0d8eda613fd1f2d52be2a56fbaf87d4d8bda65a8
SHA256

e1622c22652985746a1bcb494d8e73efb6d56273f704401b33624ef6062f9a54
SHA512

6656ff4797ef7482a70d3e54fc2e2ea07eda729334f273b62a152e5f61169d951e8476ab147ce75c483860f6939554dda5aa2ec914038e966cb746658980289c

Score

10^/10

formbook modiloader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.electronicservicesonline.com/jsyp/

Decoy

chernigiv-quest.com

s-sashenzhen.com

curedtherapy.com

esketamine.doctor

advantagehail.com

greensolartechinternet.com

omaybread.com

afrocanlinks.com

luisxe.info

qygmuakh.club

mutlulukdileriz.net

lifelineglobalministries.today

aaa1roofing.com

bestcoworker.com

exclusiveoffer.bet

answerwill.com

canelonni.com

getuvewedre.com

mrhotelsthailand.com

brabantinecityrow.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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/548-5-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/548-7-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral1/memory/1576-13-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3825035466-2522850611-591511364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YLZXPLRXV = "C:\\Program Files (x86)\\internet explorer\\ieinstal.exe"	help.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Opik_lk.exehelp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Opiklk = "C:\\Users\\Public\\Libraries\\klkipO.url"	Opik_lk.exe
Key created	\Registry\User\S-1-5-21-3825035466-2522850611-591511364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	help.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ieinstal.exehelp.exe

description	pid	process	target process
PID 548 set thread context of 1388	548	ieinstal.exe	Explorer.EXE
PID 1576 set thread context of 1388	1576	help.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3825035466-2522850611-591511364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

ieinstal.exehelp.exe

pid	process
548	ieinstal.exe
548	ieinstal.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe
1576	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ieinstal.exehelp.exe

pid process

548 ieinstal.exe
548 ieinstal.exe
548 ieinstal.exe
1576 help.exe
1576 help.exe
1576 help.exe
1576 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ieinstal.exehelp.exe

description pid process

Token: SeDebugPrivilege 548 ieinstal.exe
Token: SeDebugPrivilege 1576 help.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE
1388 Explorer.EXE
1388 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE
1388 Explorer.EXE
1388 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	548	ieinstal.exe
Token: SeDebugPrivilege	1576	help.exe

pid	process
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE

pid	process
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Opik_lk.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1968 wrote to memory of 548	1968	Opik_lk.exe	ieinstal.exe
PID 1388 wrote to memory of 1576	1388	Explorer.EXE	help.exe
PID 1388 wrote to memory of 1576	1388	Explorer.EXE	help.exe
PID 1388 wrote to memory of 1576	1388	Explorer.EXE	help.exe
PID 1388 wrote to memory of 1576	1388	Explorer.EXE	help.exe
PID 1576 wrote to memory of 820	1576	help.exe	Firefox.exe
PID 1576 wrote to memory of 820	1576	help.exe	Firefox.exe
PID 1576 wrote to memory of 820	1576	help.exe	Firefox.exe
PID 1576 wrote to memory of 820	1576	help.exe	Firefox.exe
PID 1576 wrote to memory of 820	1576	help.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1388

C:\Users\Admin\AppData\Local\Temp\Opik_lk.exe
"C:\Users\Admin\AppData\Local\Temp\Opik_lk.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1968

C:\Program Files (x86)\internet explorer\ieinstal.exe
"C:\Program Files (x86)\internet explorer\ieinstal.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:548

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/548-4-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/548-5-0x0000000000000000-mapping.dmp

Download
memory/548-7-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/548-8-0x0000000002050000-0x0000000002353000-memory.dmp

Filesize
3.0MB

Download
memory/548-9-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/756-3-0x000007FEF5E90000-0x000007FEF610A000-memory.dmp

Filesize
2.5MB

Download
memory/820-17-0x0000000000000000-mapping.dmp

Download
memory/820-19-0x00000000012E0000-0x00000000013E1000-memory.dmp

Filesize
1.0MB

Download
memory/820-18-0x000000013F350000-0x000000013F3E3000-memory.dmp

Filesize
588KB

Download
memory/1388-10-0x0000000006D40000-0x0000000006E64000-memory.dmp

Filesize
1.1MB

Download
memory/1576-11-0x0000000000000000-mapping.dmp

Download
memory/1576-14-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1576-15-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

Filesize
8KB

Download
memory/1576-16-0x0000000000620000-0x00000000006B3000-memory.dmp

Filesize
588KB

Download
memory/1576-13-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1576-12-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/1968-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads