formbook | c76e376abdeb8103dc00f7c3b68cdf6a685cc5578269b83edc249fa0693cb973

General

Target

pending orders0308 D2101002610 pdf.exe
Size

1.0MB
MD5

346fb2689c7f90207ce5df0b60be8b14
SHA1

3eee0df26d21393485821a95c2beffc8797d090b
SHA256

6a900970eda971ac9e4cc4263b78b6145ef6c5a94783c572805fdf3c85a8503a
SHA512

9875b395dc34b35f011916d89f3647b155821a4627256d1a7fd3c7af655dcec1e153b1ddcd764e957a404547c4cb6b930afbc358f065ec9671030cf82edf02f8

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.gloomyca.com/chue/

Decoy

hairdewproducts.com

whssboys.net

visual-promotions.com

alsgotyaexteriorcleaning.com

conwayconsultant.com

sjlartistrydesign.info

organicroomservice.com

elatedscents.com

selfauthering.com

variablemonsters.com

thedietcop.com

openhouseshamptonroads.com

tyrantthemes.com

trumppowercatamarans.com

yznx.xyz

jshfoodpantry.com

larmealoeil.com

biztradelines.com

axawinterthur.sucks

inspiredtravels.net

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1360-125-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1360-126-0x000000000041ED00-mapping.dmp	formbook
behavioral2/memory/3532-135-0x00000000007C0000-0x00000000007EE000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

pending orders0308 D2101002610 pdf.exepending orders0308 D2101002610 pdf.exechkdsk.exe

description	pid	process	target process
PID 3992 set thread context of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 1360 set thread context of 3036	1360	pending orders0308 D2101002610 pdf.exe	Explorer.EXE
PID 1360 set thread context of 3036	1360	pending orders0308 D2101002610 pdf.exe	Explorer.EXE
PID 3532 set thread context of 3036	3532	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

pending orders0308 D2101002610 pdf.exepending orders0308 D2101002610 pdf.exechkdsk.exe

pid	process
3992	pending orders0308 D2101002610 pdf.exe
3992	pending orders0308 D2101002610 pdf.exe
3992	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

pending orders0308 D2101002610 pdf.exechkdsk.exe

pid	process
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
1360	pending orders0308 D2101002610 pdf.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe
3532	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

pending orders0308 D2101002610 pdf.exepending orders0308 D2101002610 pdf.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3992	pending orders0308 D2101002610 pdf.exe
Token: SeDebugPrivilege	1360	pending orders0308 D2101002610 pdf.exe
Token: SeDebugPrivilege	3532	chkdsk.exe
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE
Token: SeShutdownPrivilege	3036	Explorer.EXE
Token: SeCreatePagefilePrivilege	3036	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

pending orders0308 D2101002610 pdf.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3992 wrote to memory of 1360	3992	pending orders0308 D2101002610 pdf.exe	pending orders0308 D2101002610 pdf.exe
PID 3036 wrote to memory of 3532	3036	Explorer.EXE	chkdsk.exe
PID 3036 wrote to memory of 3532	3036	Explorer.EXE	chkdsk.exe
PID 3036 wrote to memory of 3532	3036	Explorer.EXE	chkdsk.exe
PID 3532 wrote to memory of 1316	3532	chkdsk.exe	Firefox.exe
PID 3532 wrote to memory of 1316	3532	chkdsk.exe	Firefox.exe
PID 3532 wrote to memory of 1316	3532	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036

C:\Users\Admin\AppData\Local\Temp\pending orders0308 D2101002610 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\pending orders0308 D2101002610 pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3992

C:\Users\Admin\AppData\Local\Temp\pending orders0308 D2101002610 pdf.exe
"C:\Users\Admin\AppData\Local\Temp\pending orders0308 D2101002610 pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1360

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1316

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1316-141-0x000001E710C80000-0x000001E710D43000-memory.dmp

Filesize
780KB

Download
memory/1316-140-0x00007FF7CA7F0000-0x00007FF7CA883000-memory.dmp

Filesize
588KB

Download
memory/1316-139-0x0000000000000000-mapping.dmp

Download
memory/1360-126-0x000000000041ED00-mapping.dmp

Download
memory/1360-131-0x0000000001330000-0x0000000001344000-memory.dmp

Filesize
80KB

Download
memory/1360-129-0x0000000000EE0000-0x0000000000EF4000-memory.dmp

Filesize
80KB

Download
memory/1360-128-0x0000000001360000-0x0000000001680000-memory.dmp

Filesize
3.1MB

Download
memory/1360-125-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3036-138-0x0000000005A30000-0x0000000005B7B000-memory.dmp

Filesize
1.3MB

Download
memory/3036-132-0x00000000058A0000-0x000000000598E000-memory.dmp

Filesize
952KB

Download
memory/3036-130-0x0000000004AE0000-0x0000000004C57000-memory.dmp

Filesize
1.5MB

Download
memory/3532-135-0x00000000007C0000-0x00000000007EE000-memory.dmp

Filesize
184KB

Download
memory/3532-133-0x0000000000000000-mapping.dmp

Download
memory/3532-137-0x0000000005500000-0x0000000005593000-memory.dmp

Filesize
588KB

Download
memory/3532-136-0x00000000051E0000-0x0000000005500000-memory.dmp

Filesize
3.1MB

Download
memory/3532-134-0x0000000001030000-0x000000000103A000-memory.dmp

Filesize
40KB

Download
memory/3992-121-0x0000000005210000-0x0000000005219000-memory.dmp

Filesize
36KB

Download
memory/3992-120-0x0000000004F30000-0x000000000542E000-memory.dmp

Filesize
5.0MB

Download
memory/3992-114-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/3992-124-0x00000000081A0000-0x00000000081D3000-memory.dmp

Filesize
204KB

Download
memory/3992-122-0x000000007E610000-0x000000007E611000-memory.dmp

Filesize
4KB

Download
memory/3992-123-0x0000000000E10000-0x0000000000E8A000-memory.dmp

Filesize
488KB

Download
memory/3992-119-0x0000000004F10000-0x0000000004F11000-memory.dmp

Filesize
4KB

Download
memory/3992-118-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

Filesize
4KB

Download
memory/3992-117-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download
memory/3992-116-0x0000000005430000-0x0000000005431000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads