formbook | 2adb8bdadf9867460dedfccd61ab3b0fde0af1211b914611f8ea4920f68eaca8

General

Target

PL PI.exe
Size

483KB
MD5

a55080b594286b0ccaf24ea05141293d
SHA1

1b7076439313bd90da6d37263a297fb613efc82a
SHA256

0707523c23666b0535673287616ea82b34e810594ddf19c45a0746d1bd697070
SHA512

fbf9b42a524985ca74de35338b0968bc54bae7b5b5693927e8a33d0be3175486966e863fcb1b98433d31ad3186cbdc80799e648e82f2a37c7f81a2a62e4445e1

Score

10^/10

formbook wus evasion persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wus

Decoy

generativecoaching.net

skillmosaic.com

practicalmaster.com

12aminmiami.com

instagramsupport.online

mainelse.net

qqysmr.com

wealthxd.com

videoadscreator.com

dltzscl.com

cotaforjulyans.com

forcend.com

shinjukufilm.com

bsq30.com

dragonsrose.net

loganbuys.com

wwwfitnessymusica.com

microbladingdublin.com

corporateiconic.com

sunshinegroupnyc.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1776-61-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1776-62-0x000000000041E290-mapping.dmp	formbook
behavioral1/memory/704-71-0x0000000000080000-0x00000000000AD000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PL PI.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PL PI.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PL PI.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

660 cmd.exe

pid	process
660	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	raserver.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MJMPLR58_P = "C:\\Program Files (x86)\\Nhz7x\\colorcplsbu.exe"	raserver.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PL PI.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PL PI.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	PL PI.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PL PI.exePL PI.exeraserver.exe

description	pid	process	target process
PID 1756 set thread context of 1776	1756	PL PI.exe	PL PI.exe
PID 1776 set thread context of 1260	1776	PL PI.exe	Explorer.EXE
PID 704 set thread context of 1260	704	raserver.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

raserver.exe

description ioc process

File opened for modification C:\Program Files (x86)\Nhz7x\colorcplsbu.exe raserver.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nhz7x\colorcplsbu.exe	raserver.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

raserver.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	raserver.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

PL PI.exeraserver.exe

pid	process
1776	PL PI.exe
1776	PL PI.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe
704	raserver.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

PL PI.exeraserver.exe

pid process

1776 PL PI.exe
1776 PL PI.exe
1776 PL PI.exe
704 raserver.exe
704 raserver.exe
704 raserver.exe
704 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PL PI.exeraserver.exe

description pid process

Token: SeDebugPrivilege 1776 PL PI.exe
Token: SeDebugPrivilege 704 raserver.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1776	PL PI.exe
Token: SeDebugPrivilege	704	raserver.exe

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PL PI.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1756 wrote to memory of 1776	1756	PL PI.exe	PL PI.exe
PID 1260 wrote to memory of 704	1260	Explorer.EXE	raserver.exe
PID 1260 wrote to memory of 704	1260	Explorer.EXE	raserver.exe
PID 1260 wrote to memory of 704	1260	Explorer.EXE	raserver.exe
PID 1260 wrote to memory of 704	1260	Explorer.EXE	raserver.exe
PID 704 wrote to memory of 660	704	raserver.exe	cmd.exe
PID 704 wrote to memory of 660	704	raserver.exe	cmd.exe
PID 704 wrote to memory of 660	704	raserver.exe	cmd.exe
PID 704 wrote to memory of 660	704	raserver.exe	cmd.exe
PID 704 wrote to memory of 1132	704	raserver.exe	Firefox.exe
PID 704 wrote to memory of 1132	704	raserver.exe	Firefox.exe
PID 704 wrote to memory of 1132	704	raserver.exe	Firefox.exe
PID 704 wrote to memory of 1132	704	raserver.exe	Firefox.exe
PID 704 wrote to memory of 1132	704	raserver.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:1260

C:\Users\Admin\AppData\Local\Temp\PL PI.exe
"C:\Users\Admin\AppData\Local\Temp\PL PI.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756

C:\Users\Admin\AppData\Local\Temp\PL PI.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1776

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:704

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PL PI.exe"
3⤵
- Deletes itself
PID:660

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\7L887291\7L8logim.jpeg

Filesize
62KB

MD5
49ae5c312896bc9d5a54b8d0ecfc9a78

SHA1
0f14cd3218ba553e4c933b5cc7fdd55c518f92ca

SHA256
eda0f7ad061c3b35fc6e4433dc396a9eba6e22485de5f91c48f49e669cf42eb8

SHA512
b211390ae82170381f00df47b1e25bc5c6f9a0c9aadd7604f671ce2abfbc922886c6a766e2c96f0f795e5966c66dc12cbe16441d869eed149b96af1fda2b513d

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\7L887291\7L8logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/660-69-0x0000000000000000-mapping.dmp

Download
memory/704-67-0x0000000000000000-mapping.dmp

Download
memory/704-73-0x00000000004D0000-0x0000000000563000-memory.dmp

Filesize
588KB

Download
memory/704-72-0x0000000002100000-0x0000000002403000-memory.dmp

Filesize
3.0MB

Download
memory/704-71-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/704-70-0x0000000000830000-0x000000000084C000-memory.dmp

Filesize
112KB

Download
memory/1260-66-0x00000000073B0000-0x0000000007520000-memory.dmp

Filesize
1.4MB

Download
memory/1260-74-0x0000000006CE0000-0x0000000006E29000-memory.dmp

Filesize
1.3MB

Download
memory/1756-54-0x0000000000310000-0x000000000038E000-memory.dmp

Filesize
504KB

Download
memory/1756-57-0x0000000000A60000-0x0000000000A9A000-memory.dmp

Filesize
232KB

Download
memory/1756-56-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/1756-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1776-65-0x0000000000210000-0x0000000000224000-memory.dmp

Filesize
80KB

Download
memory/1776-64-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/1776-62-0x000000000041E290-mapping.dmp

Download
memory/1776-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1776-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1776-58-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads