formbook | d226a2f9eb4ac11314978a2f766387cdd8bef3ab422b33795e383598c4e9f96a

General

Target

01308.exe
Size

474KB
MD5

25a53b5fdbe19e341d674b816175d4c9
SHA1

94d9ad37e73e089eaa967ab433351992a3aee500
SHA256

d5231355835fc25fb6f9923639331084ff0ae602929793c263e01eda38d2fa1b
SHA512

baf0f1b5e7454e99485be3a16dd5d19cdde08f71bebf596f854cb0c1a89d640de23caa777cae96bba22ededc587dae9814794f6fc4b0ce8ff9f921d67aaaf59c

Score

10^/10

formbook dmr agilenet rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dmr

Decoy

thietkewebngay.com

fdgre.com

silverbuzzer.com

d55105.com

ccc693.com

diptya.net

oleasalon.com

vjvtjkic.biz

edmsociety.com

siyahmaske.win

lmnp-occasion.com

platocosmos.com

fakua.top

albertabarricade.com

kakaninrecipes.com

bestsmokeapp.com

hotelsitaly.online

brewtopiaapp.com

1q1twoother.men

wwwmaharashtratimes.com

Signatures

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

Formbook Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/960-54-0x00000000002D0000-0x000000000034C000-memory.dmp	formbook
behavioral1/memory/1076-64-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1076-65-0x000000000041E270-mapping.dmp	formbook
behavioral1/memory/1076-68-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/668-76-0x00000000000E0000-0x000000000010D000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

Processes:

AddInProcess32.exe

pid process

1076 AddInProcess32.exe
Loads dropped DLL 2 IoCs

Processes:

01308.exe

pid process

960 01308.exe
960 01308.exe

pid	process
1076	AddInProcess32.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/960-56-0x0000000000290000-0x00000000002B2000-memory.dmp	agile_net

Suspicious use of SetThreadContext 3 IoCs

Processes:

01308.exeAddInProcess32.exechkdsk.exe

description	pid	process	target process
PID 960 set thread context of 1076	960	01308.exe	AddInProcess32.exe
PID 1076 set thread context of 1268	1076	AddInProcess32.exe	Explorer.EXE
PID 668 set thread context of 1268	668	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 19 IoCs

Processes:

01308.exeAddInProcess32.exechkdsk.exe

pid	process
960	01308.exe
960	01308.exe
960	01308.exe
1076	AddInProcess32.exe
1076	AddInProcess32.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe
668	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

AddInProcess32.exechkdsk.exe

pid process

1076 AddInProcess32.exe
1076 AddInProcess32.exe
1076 AddInProcess32.exe
668 chkdsk.exe
668 chkdsk.exe

pid	process
1076	AddInProcess32.exe
1076	AddInProcess32.exe
1076	AddInProcess32.exe
668	chkdsk.exe
668	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

01308.exeAddInProcess32.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	960	01308.exe
Token: SeDebugPrivilege	1076	AddInProcess32.exe
Token: SeDebugPrivilege	668	chkdsk.exe
Token: SeShutdownPrivilege	1268	Explorer.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
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

01308.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 960 wrote to memory of 1076	960	01308.exe	AddInProcess32.exe
PID 1268 wrote to memory of 668	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 668	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 668	1268	Explorer.EXE	chkdsk.exe
PID 1268 wrote to memory of 668	1268	Explorer.EXE	chkdsk.exe
PID 668 wrote to memory of 1396	668	chkdsk.exe	cmd.exe
PID 668 wrote to memory of 1396	668	chkdsk.exe	cmd.exe
PID 668 wrote to memory of 1396	668	chkdsk.exe	cmd.exe
PID 668 wrote to memory of 1396	668	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268

C:\Users\Admin\AppData\Local\Temp\01308.exe
"C:\Users\Admin\AppData\Local\Temp\01308.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1076

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:668

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
3⤵
PID:1396

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\305ca9ce-05a7-4081-bcf5-b3110c43e68e\l.dll
Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
memory/668-72-0x0000000000000000-mapping.dmp

Download
memory/668-78-0x0000000001D50000-0x0000000001DE3000-memory.dmp

Filesize
588KB

Download
memory/668-77-0x0000000002020000-0x0000000002323000-memory.dmp

Filesize
3.0MB

Download
memory/668-76-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/668-75-0x0000000000570000-0x0000000000577000-memory.dmp

Filesize
28KB

Download
memory/960-59-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/960-56-0x0000000000290000-0x00000000002B2000-memory.dmp

Filesize
136KB

Download
memory/960-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download
memory/960-54-0x00000000002D0000-0x000000000034C000-memory.dmp

Filesize
496KB

Download
memory/1076-70-0x00000000002A0000-0x00000000002B4000-memory.dmp

Filesize
80KB

Download
memory/1076-69-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1076-68-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1076-65-0x000000000041E270-mapping.dmp

Download
memory/1076-64-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1076-62-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1076-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1268-71-0x0000000005FD0000-0x00000000060D2000-memory.dmp

Filesize
1.0MB

Download
memory/1268-79-0x00000000060E0000-0x00000000061E6000-memory.dmp

Filesize
1.0MB

Download
memory/1396-74-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads