formbook | ae74329d05f75049f9fc301d1ea99c34b4320edd9e3af685c84d47dd69406d08

General

Target

wininfo32/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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation lib64.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	lib64.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

lib64.exeipconfig.exe

description	pid	process	target process
PID 4836 set thread context of 2556	4836	lib64.exe	Explorer.EXE
PID 4836 set thread context of 2556	4836	lib64.exe	Explorer.EXE
PID 4612 set thread context of 2556	4612	ipconfig.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

4612 ipconfig.exe

pid	process
4612	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

Processes:

lib64.exeipconfig.exe

pid	process
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4836	lib64.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe
4612	ipconfig.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2556 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

lib64.exeipconfig.exe

pid process

4836 lib64.exe
4836 lib64.exe
4836 lib64.exe
4836 lib64.exe
4612 ipconfig.exe
4612 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lib64.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 4836 lib64.exe
Token: SeDebugPrivilege 4612 ipconfig.exe

pid	process
2556	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4836	lib64.exe
Token: SeDebugPrivilege	4612	ipconfig.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Explorer.EXElib64.exe

description	pid	process	target process
PID 2556 wrote to memory of 532	2556	Explorer.EXE	colorcpl.exe
PID 2556 wrote to memory of 532	2556	Explorer.EXE	colorcpl.exe
PID 2556 wrote to memory of 532	2556	Explorer.EXE	colorcpl.exe
PID 2556 wrote to memory of 3060	2556	Explorer.EXE	rundll32.exe
PID 2556 wrote to memory of 3060	2556	Explorer.EXE	rundll32.exe
PID 2556 wrote to memory of 3060	2556	Explorer.EXE	rundll32.exe
PID 4836 wrote to memory of 4612	4836	lib64.exe	ipconfig.exe
PID 4836 wrote to memory of 4612	4836	lib64.exe	ipconfig.exe
PID 4836 wrote to memory of 4612	4836	lib64.exe	ipconfig.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2556

C:\Users\Admin\AppData\Local\Temp\wininfo32\lib64.exe
"C:\Users\Admin\AppData\Local\Temp\wininfo32\lib64.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4836

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
3⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4612

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
PID:3060

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
PID:532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2556-140-0x0000000008AD0000-0x0000000008BE1000-memory.dmp

Filesize
1.1MB

Download
memory/2556-136-0x0000000008940000-0x0000000008ACF000-memory.dmp

Filesize
1.6MB

Download
memory/2556-148-0x00000000036E0000-0x0000000003795000-memory.dmp

Filesize
724KB

Download
memory/2556-147-0x00000000036E0000-0x0000000003795000-memory.dmp

Filesize
724KB

Download
memory/2556-139-0x0000000008AD0000-0x0000000008BE1000-memory.dmp

Filesize
1.1MB

Download
memory/4612-145-0x0000000001210000-0x000000000129F000-memory.dmp

Filesize
572KB

Download
memory/4612-143-0x0000000000C40000-0x0000000000C6D000-memory.dmp

Filesize
180KB

Download
memory/4612-141-0x0000000000000000-mapping.dmp

Download
memory/4612-142-0x0000000000960000-0x000000000096B000-memory.dmp

Filesize
44KB

Download
memory/4612-144-0x00000000013E0000-0x000000000172A000-memory.dmp

Filesize
3.3MB

Download
memory/4612-146-0x0000000000C40000-0x0000000000C6D000-memory.dmp

Filesize
180KB

Download
memory/4836-138-0x0000000000780000-0x0000000000790000-memory.dmp

Filesize
64KB

Download
memory/4836-134-0x00000000005A0000-0x00000000005B0000-memory.dmp

Filesize
64KB

Download
memory/4836-137-0x0000000000650000-0x000000000067F000-memory.dmp

Filesize
188KB

Download
memory/4836-133-0x0000000000C30000-0x0000000000F7A000-memory.dmp

Filesize
3.3MB

Download
memory/4836-135-0x0000000000650000-0x000000000067F000-memory.dmp

Filesize
188KB

Download
memory/4836-132-0x0000000000650000-0x000000000067F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads