formbook | d8b2ccbb31253f78340e5a95ac72cb871e52338526817cc5db09107becaf7b36

General

Target

lib64.exe
Size

202KB
MD5

676380743dd23f61e18c1e044105168a
SHA1

387fbee19170c2ddc8c4faa2b38131fe9b3259de
SHA256

d8b2ccbb31253f78340e5a95ac72cb871e52338526817cc5db09107becaf7b36
SHA512

685d3bf901993ddec9a786132f1f9e9b48c6d8697fdce67f26813b0e1d1b1b2419d37db35c43829578255b51d80877a243b395d2a4423eef4174b5168dfc8b14
SSDEEP

6144:qxAVDI/PTDCC4vX7NYEpItOeDwh0UkezRpt:qxAVD6Pn0v+EaOeDo0yzRT

Score

10^/10

formbook s3f0 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

s3f0

Decoy

zm/xqaOkp7SIM6I9k8cYYQ==

R3BJUiYhIJsD50TcNbbEexs=

r92WbDh7DjlsCftKuG56

UmoUBecGa6YL6A==

UQLQ4AmN+i0R

ATNkzEHBHyMM

BSHJi2n11k/Oq+6Mug==

+Z7elo1OY5UH6Q==

dZEf25y+5WLNqDGY9DI=

Zu6ipAkOo1QGo6fHrw==

iquKhUajLOlfLDduk8cYYQ==

6HcbD4jxPzcS

kCkEGSRmmQVzS1l7k8cYYQ==

kpV9fdfeZ3ZO/ozTsg==

Vea2yr7h+HTYxwHH9C8=

j7h4fHeMuGfayAHH9C8=

tcQ2/YKFQAFqYKxQfu09Rjl6FA==

RVYC2MYEERU2x8sXLiY=

dv+nDEaN+i0R

CbNkLJj8EFE0Hmn/LSeqpVhnTmJs

Signatures

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

Processes:

lib64.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation lib64.exe
Loads dropped DLL 1 IoCs

Processes:

wininit.exe

pid process

1676 wininit.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	lib64.exe

pid	process
1676	wininit.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

lib64.exewininit.exe

description	pid	process	target process
PID 1556 set thread context of 1288	1556	lib64.exe	Explorer.EXE
PID 1676 set thread context of 1288	1676	wininit.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wininit.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wininit.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

lib64.exewininit.exe

pid	process
1556	lib64.exe
1556	lib64.exe
1556	lib64.exe
1556	lib64.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe
1676	wininit.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

lib64.exewininit.exe

pid process

1556 lib64.exe
1556 lib64.exe
1556 lib64.exe
1676 wininit.exe
1676 wininit.exe
1676 wininit.exe
1676 wininit.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lib64.exewininit.exe

description pid process

Token: SeDebugPrivilege 1556 lib64.exe
Token: SeDebugPrivilege 1676 wininit.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1556	lib64.exe
Token: SeDebugPrivilege	1676	wininit.exe

pid	process
1288	Explorer.EXE
1288	Explorer.EXE

pid	process
1288	Explorer.EXE
1288	Explorer.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Explorer.EXEwininit.exe

description	pid	process	target process
PID 1288 wrote to memory of 1676	1288	Explorer.EXE	wininit.exe
PID 1288 wrote to memory of 1676	1288	Explorer.EXE	wininit.exe
PID 1288 wrote to memory of 1676	1288	Explorer.EXE	wininit.exe
PID 1288 wrote to memory of 1676	1288	Explorer.EXE	wininit.exe
PID 1676 wrote to memory of 968	1676	wininit.exe	Firefox.exe
PID 1676 wrote to memory of 968	1676	wininit.exe	Firefox.exe
PID 1676 wrote to memory of 968	1676	wininit.exe	Firefox.exe
PID 1676 wrote to memory of 968	1676	wininit.exe	Firefox.exe
PID 1676 wrote to memory of 968	1676	wininit.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:1288

C:\Users\Admin\AppData\Local\Temp\lib64.exe
"C:\Users\Admin\AppData\Local\Temp\lib64.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1556

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:968

Network

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

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
949KB

MD5
38a3e021eb32c9976adaf0b3372080fc

SHA1
68e02803c646be21007d90bec841c176b82211fd

SHA256
8cde0275d60da0d11954f73c7c8862cfc4b306f61bb8b1ce14abe4a193af2652

SHA512
b886cc112f2750e7300b66f7242850659fa49fdc97f75aed376cb9f5440875f303a143bf8b51068ec42674f1ebe1dfcc40534f3a7aed3cc4d20f9274b9a66d18

Download Submit
memory/1288-63-0x0000000006570000-0x000000000669A000-memory.dmp

Filesize
1.2MB

Download
memory/1288-57-0x0000000006E80000-0x0000000006FE1000-memory.dmp

Filesize
1.4MB

Download
memory/1288-66-0x0000000006570000-0x000000000669A000-memory.dmp

Filesize
1.2MB

Download
memory/1556-56-0x0000000000110000-0x0000000000120000-memory.dmp

Filesize
64KB

Download
memory/1556-54-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/1556-55-0x0000000000A90000-0x0000000000D93000-memory.dmp

Filesize
3.0MB

Download
memory/1676-58-0x0000000000000000-mapping.dmp

Download
memory/1676-60-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1676-59-0x00000000004D0000-0x00000000004EA000-memory.dmp

Filesize
104KB

Download
memory/1676-61-0x0000000002120000-0x0000000002423000-memory.dmp

Filesize
3.0MB

Download
memory/1676-62-0x00000000004F0000-0x000000000057F000-memory.dmp

Filesize
572KB

Download
memory/1676-64-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1676-65-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads