formbook | 8f0337a6ceabb0f235950c20db817d766d4b9e5cf8831e60ef766c82f33f7dec

General

Target

0BX91W1MA.scr
Size

770KB
MD5

f39afbe1c85c716c173a20017b94319c
SHA1

56398ed8fab138969bfa478e28d82f77e0ecd463
SHA256

8f0337a6ceabb0f235950c20db817d766d4b9e5cf8831e60ef766c82f33f7dec
SHA512

bbdec959a7d3299d93a6ec77980b23625f52a002e0231cb095a71a870db2819aca0d60a9c1f0eec4b5f3656c92d252a61b6ae63fb914755dc8fe74b6eddd0de8

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.evolvekitchendesign.com/ffw/

Decoy

unmutedgenerations.com

localmoversuae.com

centralrea.com

geyyfphzoe.com

silverpackfactory.com

techtronixx.com

shop-deinen-deal.com

buehne.cloud

inspirefreedomtoday.com

chapelcouture.com

easton-taiwan.com

quanaonudep.store

merzigomusic.com

wpzoomin.com

service-lkytrsahdfpedf.com

yeasuc.com

mydogtrainingservice.com

galeribisnisonline.com

cscremodeling.com

bom-zzxx.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/1852-66-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1852-67-0x000000000041EB50-mapping.dmp	formbook
behavioral1/memory/864-77-0x0000000000080000-0x00000000000AE000-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:

0BX91W1MA.scr

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0BX91W1MA.scr
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0BX91W1MA.scr

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1284 cmd.exe

pid	process
1284	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:

0BX91W1MA.scr

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	0BX91W1MA.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0BX91W1MA.scr

Suspicious use of SetThreadContext 3 IoCs

Processes:

0BX91W1MA.scr0BX91W1MA.screxplorer.exe

description	pid	process	target process
PID 1840 set thread context of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1852 set thread context of 1212	1852	0BX91W1MA.scr	Explorer.EXE
PID 864 set thread context of 1212	864	explorer.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

0BX91W1MA.scr0BX91W1MA.screxplorer.exe

pid process

1840 0BX91W1MA.scr
1852 0BX91W1MA.scr
1852 0BX91W1MA.scr
864 explorer.exe
864 explorer.exe
864 explorer.exe
864 explorer.exe
864 explorer.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

0BX91W1MA.screxplorer.exe

pid process

1852 0BX91W1MA.scr
1852 0BX91W1MA.scr
1852 0BX91W1MA.scr
864 explorer.exe
864 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

0BX91W1MA.scr0BX91W1MA.screxplorer.exe

description pid process

Token: SeDebugPrivilege 1840 0BX91W1MA.scr
Token: SeDebugPrivilege 1852 0BX91W1MA.scr
Token: SeDebugPrivilege 864 explorer.exe

pid	process
1840	0BX91W1MA.scr
1852	0BX91W1MA.scr
1852	0BX91W1MA.scr
864	explorer.exe
864	explorer.exe
864	explorer.exe
864	explorer.exe
864	explorer.exe

pid	process
1852	0BX91W1MA.scr
1852	0BX91W1MA.scr
1852	0BX91W1MA.scr
864	explorer.exe
864	explorer.exe

description	pid	process
Token: SeDebugPrivilege	1840	0BX91W1MA.scr
Token: SeDebugPrivilege	1852	0BX91W1MA.scr
Token: SeDebugPrivilege	864	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0BX91W1MA.scrExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1840 wrote to memory of 1852	1840	0BX91W1MA.scr	0BX91W1MA.scr
PID 1212 wrote to memory of 864	1212	Explorer.EXE	explorer.exe
PID 1212 wrote to memory of 864	1212	Explorer.EXE	explorer.exe
PID 1212 wrote to memory of 864	1212	Explorer.EXE	explorer.exe
PID 1212 wrote to memory of 864	1212	Explorer.EXE	explorer.exe
PID 864 wrote to memory of 1284	864	explorer.exe	cmd.exe
PID 864 wrote to memory of 1284	864	explorer.exe	cmd.exe
PID 864 wrote to memory of 1284	864	explorer.exe	cmd.exe
PID 864 wrote to memory of 1284	864	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\0BX91W1MA.scr
"C:\Users\Admin\AppData\Local\Temp\0BX91W1MA.scr" /S
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840

C:\Users\Admin\AppData\Local\Temp\0BX91W1MA.scr
"C:\Users\Admin\AppData\Local\Temp\0BX91W1MA.scr"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1852

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\0BX91W1MA.scr"
3⤵
- Deletes itself
PID:1284

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

Replay Monitor

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Downloads

memory/864-72-0x0000000000000000-mapping.dmp

Download
memory/864-79-0x0000000000A00000-0x0000000000A93000-memory.dmp

Filesize
588KB

Download
memory/864-76-0x0000000000AC0000-0x0000000000D41000-memory.dmp

Filesize
2.5MB

Download
memory/864-78-0x0000000002520000-0x0000000002823000-memory.dmp

Filesize
3.0MB

Download
memory/864-77-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/864-74-0x00000000744B1000-0x00000000744B3000-memory.dmp

Filesize
8KB

Download
memory/864-73-0x0000000074D91000-0x0000000074D93000-memory.dmp

Filesize
8KB

Download
memory/1212-80-0x0000000004DF0000-0x0000000004EB6000-memory.dmp

Filesize
792KB

Download
memory/1212-71-0x0000000004F40000-0x00000000050EA000-memory.dmp

Filesize
1.7MB

Download
memory/1284-75-0x0000000000000000-mapping.dmp

Download
memory/1840-65-0x0000000001370000-0x00000000013D9000-memory.dmp

Filesize
420KB

Download
memory/1840-60-0x00000000013E0000-0x00000000013E1000-memory.dmp

Filesize
4KB

Download
memory/1840-64-0x0000000005340000-0x00000000053F1000-memory.dmp

Filesize
708KB

Download
memory/1840-63-0x0000000000260000-0x000000000026E000-memory.dmp

Filesize
56KB

Download
memory/1840-62-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/1852-70-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1852-69-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/1852-67-0x000000000041EB50-mapping.dmp

Download
memory/1852-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads