formbook | 2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a

General

Target

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
Size

737KB
MD5

38694cf4cf60fc8408f11b40e2e62338
SHA1

e42b57f70784715d37794ec05cc0da6ff356345c
SHA256

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a
SHA512

fdb9cc5ff5a872bc9f383d06582a726652b4a2ce491bc1482bcf6e1808950835d57144061ee68b73a917db660f8aaaa381d4e6dc1657e69e5dca4d32d7648657

Score

10^/10

formbook bnc rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bnc

Decoy

iseoguide.com

rogerellisonline.com

thephonelenses.com

reddystone.com

explorehokianga.com

miaflcio.vote

baonihaochi.com

thewiseengineer.com

exciplexinc.com

luewaeeqaredre.com

atharvatechnologysolutions.com

vnsr1234.com

nationswines.com

toaglobalcc.com

texasbusrental.com

sailfishingcostarica.com

superbuy.today

mode-paradox.com

soperlz.xyz

filterdance.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1500-138-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1804-145-0x0000000000A80000-0x0000000000AAE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exeRegSvcs.exechkdsk.exe

description	pid	process	target process
PID 1308 set thread context of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1500 set thread context of 2628	1500	RegSvcs.exe	Explorer.EXE
PID 1804 set thread context of 2628	1804	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 44 IoCs

Processes:

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exeRegSvcs.exechkdsk.exe

pid	process
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
1500	RegSvcs.exe
1500	RegSvcs.exe
1500	RegSvcs.exe
1500	RegSvcs.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe
1804	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2628 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid process

1500 RegSvcs.exe
1500 RegSvcs.exe
1500 RegSvcs.exe
1804 chkdsk.exe
1804 chkdsk.exe

pid	process
2628	Explorer.EXE

pid	process
1500	RegSvcs.exe
1500	RegSvcs.exe
1500	RegSvcs.exe
1804	chkdsk.exe
1804	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exeRegSvcs.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
Token: SeDebugPrivilege	1500	RegSvcs.exe
Token: SeDebugPrivilege	1804	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1308 wrote to memory of 3020	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 3020	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 3020	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 1308 wrote to memory of 1500	1308	2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe	RegSvcs.exe
PID 2628 wrote to memory of 1804	2628	Explorer.EXE	chkdsk.exe
PID 2628 wrote to memory of 1804	2628	Explorer.EXE	chkdsk.exe
PID 2628 wrote to memory of 1804	2628	Explorer.EXE	chkdsk.exe
PID 1804 wrote to memory of 636	1804	chkdsk.exe	cmd.exe
PID 1804 wrote to memory of 636	1804	chkdsk.exe	cmd.exe
PID 1804 wrote to memory of 636	1804	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2628

C:\Users\Admin\AppData\Local\Temp\2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe
"C:\Users\Admin\AppData\Local\Temp\2c5f5dbeb72dc0832f94f4ad3bfe984ac1e8a9dd6b64a4335394cfc16ee00a6a.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1308

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:3020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1500

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:1804

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/636-147-0x0000000000000000-mapping.dmp

Download
memory/1308-130-0x0000000000FA0000-0x0000000001060000-memory.dmp

Filesize
768KB

Download
memory/1308-131-0x0000000005E20000-0x0000000005EBC000-memory.dmp

Filesize
624KB

Download
memory/1308-132-0x0000000006470000-0x0000000006A14000-memory.dmp

Filesize
5.6MB

Download
memory/1308-133-0x0000000005EC0000-0x0000000005F52000-memory.dmp

Filesize
584KB

Download
memory/1308-134-0x0000000005DA0000-0x0000000005DAA000-memory.dmp

Filesize
40KB

Download
memory/1308-135-0x0000000006070000-0x00000000060C6000-memory.dmp

Filesize
344KB

Download
memory/1500-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1500-137-0x0000000000000000-mapping.dmp

Download
memory/1500-140-0x0000000000EB0000-0x00000000011FA000-memory.dmp

Filesize
3.3MB

Download
memory/1500-141-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/1804-143-0x0000000000000000-mapping.dmp

Download
memory/1804-145-0x0000000000A80000-0x0000000000AAE000-memory.dmp

Filesize
184KB

Download
memory/1804-144-0x00000000007A0000-0x00000000007AA000-memory.dmp

Filesize
40KB

Download
memory/1804-146-0x00000000011D0000-0x000000000151A000-memory.dmp

Filesize
3.3MB

Download
memory/1804-148-0x0000000001010000-0x00000000010A3000-memory.dmp

Filesize
588KB

Download
memory/2628-142-0x00000000032E0000-0x0000000003412000-memory.dmp

Filesize
1.2MB

Download
memory/2628-149-0x00000000035A0000-0x000000000368E000-memory.dmp

Filesize
952KB

Download
memory/3020-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads