formbook | b4455821387f7c5571cf3aa28abde41c188593a4cb5f59d0f1e9c368db49348b

General

Target

zz.exe
Size

260KB
MD5

31319144a917439aa8e961cce95f82ee
SHA1

eaea6b758bdba74243099d60e8dd65dcbb524351
SHA256

b4455821387f7c5571cf3aa28abde41c188593a4cb5f59d0f1e9c368db49348b
SHA512

0d28854203e99f9d35fbbb920a23d9829cfad3a2583d42c77515709963c347282737b7ac545673a3b7951c4e44e4c4c37209780ef9a498eeca1ac81948dccf62
SSDEEP

6144:DN92Cag76LSVVz83bwo0SEkRMUEU4zRkaYKGfb:DNQg76LSV4Hf72XU4zRyKGfb

Score

10^/10

formbook tu7g rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

tu7g

Decoy

fbbktzFKN8MB1h8=

FPidEXGfkl0WqgXoVhHehw==

iHEjIL7XwJdpN6Er4Evhu03o

fHQTMsjqD3cPpQ==

VDXmCsr22oYhshz/Fg305nF21Q==

j4ZHfk5rRf6tVtwbMRU=

AORqAXKWy4R+//VwFdB6VVk=

9PW0Yw9RkIfer5+/bum7nlxwy1QfDQ==

ZU8mUjRgSOn3d0eFD3puQgVpnaAj

nlHgT2aJaMMB1h8=

+qc6XcgwdjVsEgKQ2zT+

/gCHJbBZrWjx1OZN40Hhu03o

48dX+WeLWAjFZMR2lItP8bJ87X4=

+N6H9VVzix7uogI=

Jf/NAPQe+8we7uftVhHehw==

YmANk8T+ix7uogI=

GTKxpLAYsJTl

pT8FM/QacYAV/+VInxn0

8JAnF9PnyZA29xH3Iw==

8ZdFPhCvGxYBxRCTqtB6VVk=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Loads dropped DLL 1 IoCs

Processes:

mstsc.exe

pid process

1112 mstsc.exe

pid	process
1112	mstsc.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

zz.exeRegsvcs.exemstsc.exe

description	pid	process	target process
PID 240 set thread context of 1500	240	zz.exe	Regsvcs.exe
PID 1500 set thread context of 1432	1500	Regsvcs.exe	Explorer.EXE
PID 1112 set thread context of 1432	1112	mstsc.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

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

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

Regsvcs.exemstsc.exe

pid	process
1500	Regsvcs.exe
1500	Regsvcs.exe
1500	Regsvcs.exe
1500	Regsvcs.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe
1112	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1432 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Regsvcs.exemstsc.exe

pid process

1500 Regsvcs.exe
1500 Regsvcs.exe
1500 Regsvcs.exe
1112 mstsc.exe
1112 mstsc.exe
1112 mstsc.exe
1112 mstsc.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Regsvcs.exemstsc.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1500 Regsvcs.exe
Token: SeDebugPrivilege 1112 mstsc.exe
Token: SeShutdownPrivilege 1432 Explorer.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1432 Explorer.EXE
1432 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1432 Explorer.EXE
1432 Explorer.EXE

pid	process
1432	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1500	Regsvcs.exe
Token: SeDebugPrivilege	1112	mstsc.exe
Token: SeShutdownPrivilege	1432	Explorer.EXE

pid	process
1432	Explorer.EXE
1432	Explorer.EXE

pid	process
1432	Explorer.EXE
1432	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

zz.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 240 wrote to memory of 1500	240	zz.exe	Regsvcs.exe
PID 1432 wrote to memory of 1112	1432	Explorer.EXE	mstsc.exe
PID 1432 wrote to memory of 1112	1432	Explorer.EXE	mstsc.exe
PID 1432 wrote to memory of 1112	1432	Explorer.EXE	mstsc.exe
PID 1432 wrote to memory of 1112	1432	Explorer.EXE	mstsc.exe
PID 1112 wrote to memory of 1780	1112	mstsc.exe	Firefox.exe
PID 1112 wrote to memory of 1780	1112	mstsc.exe	Firefox.exe
PID 1112 wrote to memory of 1780	1112	mstsc.exe	Firefox.exe
PID 1112 wrote to memory of 1780	1112	mstsc.exe	Firefox.exe
PID 1112 wrote to memory of 1780	1112	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1432

C:\Users\Admin\AppData\Local\Temp\zz.exe
"C:\Users\Admin\AppData\Local\Temp\zz.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:240

C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regsvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1500

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.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:1112

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
837KB

MD5
e1b58e0aa1b377a1d0e940660ad1ace1

SHA1
5afc7291b26855b1252b26381ebc85ed3cca218f

SHA256
1b98c006231d38524e2278a474c49274fe42e0bb1a31bcfda02e6e32f559b777

SHA512
9ce778bcb586638662b090910c4ceab3b64e16dfaf905a7581c1d349fecdf186995b3cc0dc8c6fc6e9761ea2831d7b14ac1619c2bd5ebc6d18015842e5d94aa2

Download Submit
memory/240-54-0x000000013F340000-0x000000013F384000-memory.dmp

Filesize
272KB

Download
memory/240-55-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/240-56-0x0000000000660000-0x000000000066A000-memory.dmp

Filesize
40KB

Download
memory/1112-76-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/1112-70-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Filesize
8KB

Download
memory/1112-74-0x0000000001FC0000-0x000000000204F000-memory.dmp

Filesize
572KB

Download
memory/1112-73-0x0000000002130000-0x0000000002433000-memory.dmp

Filesize
3.0MB

Download
memory/1112-72-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/1112-71-0x00000000003F0000-0x00000000004F4000-memory.dmp

Filesize
1.0MB

Download
memory/1112-69-0x0000000000000000-mapping.dmp

Download
memory/1432-77-0x0000000006A50000-0x0000000006B79000-memory.dmp

Filesize
1.2MB

Download
memory/1432-75-0x0000000006A50000-0x0000000006B79000-memory.dmp

Filesize
1.2MB

Download
memory/1432-68-0x0000000006920000-0x0000000006A50000-memory.dmp

Filesize
1.2MB

Download
memory/1500-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-67-0x0000000000090000-0x00000000000A0000-memory.dmp

Filesize
64KB

Download
memory/1500-66-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/1500-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-65-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1500-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-61-0x00000000004012B0-mapping.dmp

Download
memory/1500-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1500-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads