formbook | edf101602ab8eebc9642fb56728b45e0f00d9e669dd08febb0d4f85d08dbdc5e

General

Target

VSL_BUNKER INQ(009-010).exe
Size

724KB
MD5

a4cb79737cd6958c38b7bba6e414d795
SHA1

688d24bcf41841ad8d7b9b1b90ec6c5c20dae498
SHA256

b93895bf25b4802252c954577edfceb1ec4288270bbd04a5aa6226f7c974774a
SHA512

0a7fd76c1ae2b8ca0974f0589cb1da4a1b8cbcd55d2f84cbd8f59f9f68ab4153b53d1d6394a9d80965c2a27ace3138bf237279be34704308a0315c1ba324b10b
SSDEEP

12288:Vx8sg+dhSpDh1rAKm4xUXXTXjfRCbYiLMTPcu3d6lM/:AkdU5z+JXTTfRGC3

Score

10^/10

formbook u2t4 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

u2t4

Decoy

is0/Kr2pwzJzsQ==

Br+Y1UJXBRwi

3xyPgizUdKz09BsETkl8og==

ze1TAoMAaDPX/7U=

UVOHbw2GAq+PuIWSsQ==

OFq93KpeAiRsF44pjf8c

UjleSFYu2ROPbM8guwc/3jgL5FIc2g==

ow7s/hPgGLjvqwpJxQRltDRE

3OpfZ+axwzJzsQ==

pL9MWhCRBLWPkHMroyxnEnVM

EkLh+4L0Zn/kqj3SzhKGlog=

7WFAPUAKqMzaOaf3h/0jUEsP5FIc2g==

Npp5j75QZShZGHHS0xKGlog=

TzqeenZDdYzTtA==

YZgC6XhkQ/MxdomLwxKGlog=

gZsaHLeQT/1Yl4FYhfAKLV/kkbg=

6jTksbcyDbLMEbkU

RlKKaAnhnksyMwR/mB9umKUWjocoa24=

oDtW4wgWu8cPx93u0AqTK2A7QzRM

JyJyIEb6tH/4mdvroC9pDnIi5FIc2g==

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:

VSL_BUNKER INQ(009-010).exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Control Panel\International\Geo\Nation	VSL_BUNKER INQ(009-010).exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

VSL_BUNKER INQ(009-010).exeVSL_BUNKER INQ(009-010).exe

description	pid	process	target process
PID 556 set thread context of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 864 set thread context of 1272	864	VSL_BUNKER INQ(009-010).exe	Explorer.EXE
PID 864 set thread context of 1272	864	VSL_BUNKER INQ(009-010).exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

VSL_BUNKER INQ(009-010).exe

pid	process
864	VSL_BUNKER INQ(009-010).exe
864	VSL_BUNKER INQ(009-010).exe
864	VSL_BUNKER INQ(009-010).exe
864	VSL_BUNKER INQ(009-010).exe
864	VSL_BUNKER INQ(009-010).exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

VSL_BUNKER INQ(009-010).exe

pid process

864 VSL_BUNKER INQ(009-010).exe
864 VSL_BUNKER INQ(009-010).exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

VSL_BUNKER INQ(009-010).exe

description pid process

Token: SeDebugPrivilege 864 VSL_BUNKER INQ(009-010).exe

pid	process
1272	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	864	VSL_BUNKER INQ(009-010).exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

VSL_BUNKER INQ(009-010).exeExplorer.EXE

description	pid	process	target process
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 556 wrote to memory of 864	556	VSL_BUNKER INQ(009-010).exe	VSL_BUNKER INQ(009-010).exe
PID 1272 wrote to memory of 848	1272	Explorer.EXE	svchost.exe
PID 1272 wrote to memory of 848	1272	Explorer.EXE	svchost.exe
PID 1272 wrote to memory of 848	1272	Explorer.EXE	svchost.exe
PID 1272 wrote to memory of 848	1272	Explorer.EXE	svchost.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1272

C:\Users\Admin\AppData\Local\Temp\VSL_BUNKER INQ(009-010).exe
"C:\Users\Admin\AppData\Local\Temp\VSL_BUNKER INQ(009-010).exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:556

C:\Users\Admin\AppData\Local\Temp\VSL_BUNKER INQ(009-010).exe
"C:\Users\Admin\AppData\Local\Temp\VSL_BUNKER INQ(009-010).exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:864

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
PID:848

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/556-54-0x0000000001280000-0x000000000133A000-memory.dmp

Filesize
744KB

Download
memory/556-55-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/556-56-0x00000000009E0000-0x00000000009F8000-memory.dmp

Filesize
96KB

Download
memory/556-57-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/556-58-0x0000000007D60000-0x0000000007DD0000-memory.dmp

Filesize
448KB

Download
memory/556-59-0x0000000000DF0000-0x0000000000E26000-memory.dmp

Filesize
216KB

Download
memory/864-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/864-71-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/864-64-0x00000000004012B0-mapping.dmp

Download
memory/864-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/864-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/864-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/864-68-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/864-69-0x0000000000920000-0x0000000000C23000-memory.dmp

Filesize
3.0MB

Download
memory/864-70-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/864-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/864-78-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/864-74-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/864-75-0x0000000000270000-0x0000000000280000-memory.dmp

Filesize
64KB

Download
memory/864-77-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1272-76-0x0000000006EC0000-0x0000000006FEE000-memory.dmp

Filesize
1.2MB

Download
memory/1272-72-0x0000000004980000-0x0000000004A43000-memory.dmp

Filesize
780KB

Download
memory/1272-79-0x0000000006EC0000-0x0000000006FEE000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads