formbook | 60263179eccb843c5aa38040ebd2483b29a3923a94987f006561488e5d0f1d96

General

Target

PO98765.exe
Size

672KB
MD5

137ec800f9c49390f2f225ab22774443
SHA1

2f3f1a1615b625cb1daf8d1e4a3eba208a89e30d
SHA256

60263179eccb843c5aa38040ebd2483b29a3923a94987f006561488e5d0f1d96
SHA512

41b84ea68ec7c2b9fd5205a1ce00fcbfbe03d82efb4ae7ca9030f643aae341ff32b23974a23db5f8c0fbb423b569e838c10da56f185cbf4e70f1c634e8b570ec

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.firedoom.com/sbmh/

Decoy

edlasyarns.com

rettexo.com

friendlyksa.com

westhighlandwaytours.com

goudmarket.com

turkime.com

wellnysdirect.com

handydanny.net

ylccmakq.com

benefits-sherpa.com

sousolutions.net

lspcall.com

makgxoimisitzer.info

katrinarask.com

istanbulconsulter.net

mingjiaxuan.com

faculdadegraca.com

kikegbwebdesign.com

69ase.com

downrangedynamics.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/436-6-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/436-7-0x000000000041ECD0-mapping.dmp	formbook
behavioral1/memory/824-8-0x0000000000000000-mapping.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:

PO98765.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PO98765.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO98765.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2020 cmd.exe

pid	process
2020	cmd.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:

PO98765.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PO98765.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	PO98765.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO98765.exePO98765.exewuapp.exe

description	pid	process	target process
PID 1004 set thread context of 436	1004	PO98765.exe	PO98765.exe
PID 436 set thread context of 1200	436	PO98765.exe	Explorer.EXE
PID 436 set thread context of 1200	436	PO98765.exe	Explorer.EXE
PID 824 set thread context of 1200	824	wuapp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

PO98765.exewuapp.exe

pid	process
436	PO98765.exe
436	PO98765.exe
436	PO98765.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe
824	wuapp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

PO98765.exewuapp.exe

pid process

436 PO98765.exe
436 PO98765.exe
436 PO98765.exe
436 PO98765.exe
824 wuapp.exe
824 wuapp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO98765.exewuapp.exe

description pid process

Token: SeDebugPrivilege 436 PO98765.exe
Token: SeDebugPrivilege 824 wuapp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	436	PO98765.exe
Token: SeDebugPrivilege	824	wuapp.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

PO98765.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1004 wrote to memory of 436	1004	PO98765.exe	PO98765.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 1200 wrote to memory of 824	1200	Explorer.EXE	wuapp.exe
PID 824 wrote to memory of 2020	824	wuapp.exe	cmd.exe
PID 824 wrote to memory of 2020	824	wuapp.exe	cmd.exe
PID 824 wrote to memory of 2020	824	wuapp.exe	cmd.exe
PID 824 wrote to memory of 2020	824	wuapp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Local\Temp\PO98765.exe
"C:\Users\Admin\AppData\Local\Temp\PO98765.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1004

C:\Users\Admin\AppData\Local\Temp\PO98765.exe
"C:\Users\Admin\AppData\Local\Temp\PO98765.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:436

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO98765.exe"
3⤵
- Deletes itself
PID:2020

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/436-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/436-7-0x000000000041ECD0-mapping.dmp

Download
memory/824-8-0x0000000000000000-mapping.dmp

Download
memory/824-9-0x00000000002E0000-0x00000000002EB000-memory.dmp

Filesize
44KB

Download
memory/824-11-0x0000000003110000-0x0000000003253000-memory.dmp

Filesize
1.3MB

Download
memory/1004-0-0x00000000741E0000-0x00000000748CE000-memory.dmp

Filesize
6.9MB

Download
memory/1004-1-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/1004-3-0x00000000005C0000-0x00000000005D3000-memory.dmp

Filesize
76KB

Download
memory/1004-4-0x0000000005110000-0x0000000005175000-memory.dmp

Filesize
404KB

Download
memory/1004-5-0x0000000000820000-0x0000000000850000-memory.dmp

Filesize
192KB

Download
memory/2020-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads