formbook | 40ed94480e803c385fd0def0efcba1c9f5e6e52056a5793fdac140066a410eb2

General

Target

vbc.exe
Size

545KB
MD5

02a99e9171b3118afeddaa1e051ce765
SHA1

46ef8e1d17b9b7743a025d9e08fc357fd0c0abe4
SHA256

40ed94480e803c385fd0def0efcba1c9f5e6e52056a5793fdac140066a410eb2
SHA512

2e0e74ba6b3d335c892ad22a3e57c41fd8a934663efc0fa7698ac113990742f3b61cd552decf828d10fc51acbea3794759e73e93e5ede04e897ab326b022761f

Score

10^/10

formbook p63n rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

p63n

Decoy

personalrecargas-arg.com

headsetaccessories.xyz

sunriseboutique21.com

ubeafrika.com

shopnyoot.com

driverksa.info

ilikespeedracer.net

akdambakdam.com

bethe1responder.com

gfhd.online

n9bot.site

hstyz.com

buyresellerdomain.com

matoaciganjur.com

mainlineb.com

q385-yogen.net

squamation.top

thebeardedcrow.com

cannaverse.xyz

cracksoftpc.net

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1548-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1548-64-0x000000000041F1D0-mapping.dmp	formbook
behavioral1/memory/1548-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1524-73-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/1524-77-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

description	pid	process	target process
PID 1612 set thread context of 1548	1612	vbc.exe	vbc.exe
PID 1548 set thread context of 1268	1548	vbc.exe	Explorer.EXE
PID 1524 set thread context of 1268	1524	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

pid	process
1612	vbc.exe
1612	vbc.exe
1548	vbc.exe
1548	vbc.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe
1524	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exechkdsk.exe

pid process

1548 vbc.exe
1548 vbc.exe
1548 vbc.exe
1524 chkdsk.exe
1524 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.exevbc.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1612 vbc.exe
Token: SeDebugPrivilege 1548 vbc.exe
Token: SeDebugPrivilege 1524 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE

pid	process
1548	vbc.exe
1548	vbc.exe
1548	vbc.exe
1524	chkdsk.exe
1524	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1612	vbc.exe
Token: SeDebugPrivilege	1548	vbc.exe
Token: SeDebugPrivilege	1524	chkdsk.exe

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

vbc.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1612 wrote to memory of 1736	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1736	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1736	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1736	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 316	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 316	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 316	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 316	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1612 wrote to memory of 1548	1612	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1524	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 1524	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 1524	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 1524	1268	Explorer.EXE	chkdsk.exe
PID 1524 wrote to memory of 472	1524	chkdsk.exe	cmd.exe
PID 1524 wrote to memory of 472	1524	chkdsk.exe	cmd.exe
PID 1524 wrote to memory of 472	1524	chkdsk.exe	cmd.exe
PID 1524 wrote to memory of 472	1524	chkdsk.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:1268

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:1736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:316

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1548

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:472

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/472-71-0x0000000000000000-mapping.dmp

Download
memory/1268-69-0x00000000063C0000-0x0000000006546000-memory.dmp

Filesize
1.5MB

Download
memory/1268-78-0x0000000004D50000-0x0000000004DF3000-memory.dmp

Filesize
652KB

Download
memory/1268-76-0x0000000004D50000-0x0000000004DF3000-memory.dmp

Filesize
652KB

Download
memory/1524-77-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1524-75-0x0000000000A80000-0x0000000000B14000-memory.dmp

Filesize
592KB

Download
memory/1524-74-0x0000000002140000-0x0000000002443000-memory.dmp

Filesize
3.0MB

Download
memory/1524-73-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1524-72-0x0000000000BA0000-0x0000000000BA7000-memory.dmp

Filesize
28KB

Download
memory/1524-70-0x0000000000000000-mapping.dmp

Download
memory/1548-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1548-67-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/1548-68-0x0000000000630000-0x0000000000645000-memory.dmp

Filesize
84KB

Download
memory/1548-64-0x000000000041F1D0-mapping.dmp

Download
memory/1548-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1548-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1548-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1612-54-0x00000000001D0000-0x000000000025E000-memory.dmp

Filesize
568KB

Download
memory/1612-59-0x00000000006E0000-0x0000000000714000-memory.dmp

Filesize
208KB

Download
memory/1612-58-0x0000000005AC0000-0x0000000005B2C000-memory.dmp

Filesize
432KB

Download
memory/1612-57-0x00000000004E0000-0x00000000004EA000-memory.dmp

Filesize
40KB

Download
memory/1612-56-0x00000000003A0000-0x00000000003BC000-memory.dmp

Filesize
112KB

Download
memory/1612-55-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads