formbook | 916badee0304605bfd8e43c11179fb975d094226a432eeb28af55dc9be426c24

General

Target

PURCHASE ORDER.exe
Size

378KB
MD5

c284f72d5a76d0ff86ed2c35c74ebe89
SHA1

ceeae846adc4e2f121f601c7d3cf13a1b9ebff33
SHA256

916badee0304605bfd8e43c11179fb975d094226a432eeb28af55dc9be426c24
SHA512

240b5096045ba660bddf27f0ff26031a99b5ecf005094ad91df019ad7b832a64102b009a7d1187bd946951912730108469c36b37a2925596a641a7becf2d9469

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.mansiobok3.info/ch62/

Decoy

priceground.com

protmaxvigilancia.com

allyboom.com

calimerkids.com

behproject.com

everxs.com

peertopeervaluetrading.com

asosdiscountscode.com

supersoloblitz.com

allindiaexpo.com

mountainpunks.com

lawberrys.com

myinsuranceclaimconsultants.com

autoberles.center

xn--circuitomioulla-7qb.com

beheartratemonitoringkey.live

bigcitypillows.com

tresriosresortoffers.com

ratmanrodentremoval.com

fujiaseed.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/1264-55-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/1264-56-0x000000000041B6D0-mapping.dmp	formbook
behavioral1/memory/1988-57-0x0000000000000000-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:

PURCHASE ORDER.exe

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

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

468 cmd.exe

pid	process
468	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:

PURCHASE ORDER.exe

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.exeraserver.exe

description	pid	process	target process
PID 1584 set thread context of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1264 set thread context of 1192	1264	PURCHASE ORDER.exe	Explorer.EXE
PID 1988 set thread context of 1192	1988	raserver.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

PURCHASE ORDER.exeraserver.exe

pid	process
1264	PURCHASE ORDER.exe
1264	PURCHASE ORDER.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe
1988	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PURCHASE ORDER.exeraserver.exe

pid process

1264 PURCHASE ORDER.exe
1264 PURCHASE ORDER.exe
1264 PURCHASE ORDER.exe
1988 raserver.exe
1988 raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.exeraserver.exe

description	pid	process
Token: SeDebugPrivilege	1584	PURCHASE ORDER.exe
Token: SeDebugPrivilege	1264	PURCHASE ORDER.exe
Token: SeDebugPrivilege	1988	raserver.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
1192 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

PURCHASE ORDER.exe

pid process

1584 PURCHASE ORDER.exe
1584 PURCHASE ORDER.exe

pid	process
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE

pid	process
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE

pid	process
1584	PURCHASE ORDER.exe
1584	PURCHASE ORDER.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PURCHASE ORDER.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1584 wrote to memory of 1264	1584	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1192 wrote to memory of 1988	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1988	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1988	1192	Explorer.EXE	raserver.exe
PID 1192 wrote to memory of 1988	1192	Explorer.EXE	raserver.exe
PID 1988 wrote to memory of 468	1988	raserver.exe	cmd.exe
PID 1988 wrote to memory of 468	1988	raserver.exe	cmd.exe
PID 1988 wrote to memory of 468	1988	raserver.exe	cmd.exe
PID 1988 wrote to memory of 468	1988	raserver.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:1192

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1584

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1264

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
3⤵
- Deletes itself
PID:468

Network

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/468-59-0x0000000000000000-mapping.dmp

Download
memory/1264-55-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1264-56-0x000000000041B6D0-mapping.dmp

Download
memory/1648-54-0x000007FEF7F70000-0x000007FEF81EA000-memory.dmp

Filesize
2.5MB

Download
memory/1988-57-0x0000000000000000-mapping.dmp

Download
memory/1988-58-0x0000000000930000-0x000000000094C000-memory.dmp

Filesize
112KB

Download
memory/1988-60-0x0000000002FC0000-0x00000000030E6000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads