formbook | 05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0

General

Target

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
Size

463KB
MD5

9841dbf9dfa221a4e050db3e92689bc9
SHA1

6948e9499fc0bfa41a72107b1fc58b15a9e40f63
SHA256

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0
SHA512

c1791b418fbc55d00006f01a9b1dfba21dfed3fc4bb5b25f05a55c02e4c3af435a284979f186ec095bfc4e1d2717c0686d2e9b7a938be6ecf567cfd3e1517298

Score

10^/10

formbook h35 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

h35

Decoy

maraudersinc.com

liebianwangluo.com

visit-australia.info

machiyane-kasukabe.com

hafizclub.com

merkburn.net

favoritetraffic2updating.win

adrian-oeser.net

nkshopdomaincpplt234.info

imperiodofutebol.com

welometocaloundra.com

thehealthypose.com

squalloptna.com

bobknowsbest.com

damgproperties.com

wastemastershire.co.uk

swacballet.com

japanbreakingnews.com

bjufaa.info

aryakuza.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/2004-69-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/2004-70-0x000000000041B5F0-mapping.dmp	formbook
behavioral1/memory/2004-82-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/764-85-0x0000000000080000-0x00000000000AA000-memory.dmp	formbook
behavioral1/memory/764-90-0x0000000000080000-0x00000000000AA000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeRegAsm.exechkdsk.exe

description	pid	process	target process
PID 1984 set thread context of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 2004 set thread context of 1380	2004	RegAsm.exe	Explorer.EXE
PID 764 set thread context of 1380	764	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 20 IoCs

Processes:

RegAsm.exechkdsk.exe

pid	process
2004	RegAsm.exe
2004	RegAsm.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe
764	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegAsm.exechkdsk.exe

pid process

2004 RegAsm.exe
2004 RegAsm.exe
2004 RegAsm.exe
764 chkdsk.exe
764 chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeRegAsm.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
Token: SeDebugPrivilege	2004	RegAsm.exe
Token: SeDebugPrivilege	764	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1984 wrote to memory of 2004	1984	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 1380 wrote to memory of 764	1380	Explorer.EXE	chkdsk.exe
PID 1380 wrote to memory of 764	1380	Explorer.EXE	chkdsk.exe
PID 1380 wrote to memory of 764	1380	Explorer.EXE	chkdsk.exe
PID 1380 wrote to memory of 764	1380	Explorer.EXE	chkdsk.exe
PID 764 wrote to memory of 888	764	chkdsk.exe	cmd.exe
PID 764 wrote to memory of 888	764	chkdsk.exe	cmd.exe
PID 764 wrote to memory of 888	764	chkdsk.exe	cmd.exe
PID 764 wrote to memory of 888	764	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:1380

C:\Users\Admin\AppData\Local\Temp\05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
"C:\Users\Admin\AppData\Local\Temp\05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2004

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:764

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
PID:888

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

memory/764-90-0x0000000000080000-0x00000000000AA000-memory.dmp

Filesize
168KB

Download
memory/764-87-0x0000000001E20000-0x0000000001EB3000-memory.dmp

Filesize
588KB

Download
memory/764-86-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/764-85-0x0000000000080000-0x00000000000AA000-memory.dmp

Filesize
168KB

Download
memory/764-84-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/764-81-0x0000000000000000-mapping.dmp

Download
memory/888-83-0x0000000000000000-mapping.dmp

Download
memory/1380-79-0x0000000004160000-0x0000000004237000-memory.dmp

Filesize
860KB

Download
memory/1380-91-0x00000000049C0000-0x0000000004A68000-memory.dmp

Filesize
672KB

Download
memory/1380-89-0x0000000004160000-0x0000000004237000-memory.dmp

Filesize
860KB

Download
memory/1380-88-0x00000000049C0000-0x0000000004A68000-memory.dmp

Filesize
672KB

Download
memory/1984-63-0x0000000000250000-0x0000000000270000-memory.dmp

Filesize
128KB

Download
memory/1984-65-0x00000000729C0000-0x0000000073D4F000-memory.dmp

Filesize
19.6MB

Download
memory/1984-67-0x0000000070AB0000-0x0000000071290000-memory.dmp

Filesize
7.9MB

Download
memory/1984-68-0x0000000070190000-0x0000000070361000-memory.dmp

Filesize
1.8MB

Download
memory/1984-55-0x00000000729C0000-0x0000000073D4F000-memory.dmp

Filesize
19.6MB

Download
memory/1984-57-0x0000000071FB0000-0x00000000729C0000-memory.dmp

Filesize
10.1MB

Download
memory/1984-72-0x00000000729C0000-0x0000000073D4F000-memory.dmp

Filesize
19.6MB

Download
memory/1984-73-0x0000000070AB0000-0x0000000071290000-memory.dmp

Filesize
7.9MB

Download
memory/1984-74-0x0000000074620000-0x00000000747B4000-memory.dmp

Filesize
1.6MB

Download
memory/1984-75-0x0000000071290000-0x0000000071FAD000-memory.dmp

Filesize
13.1MB

Download
memory/1984-56-0x00000000753C1000-0x00000000753C3000-memory.dmp

Filesize
8KB

Download
memory/1984-78-0x0000000071FB0000-0x00000000729C0000-memory.dmp

Filesize
10.1MB

Download
memory/1984-58-0x0000000074620000-0x00000000747B4000-memory.dmp

Filesize
1.6MB

Download
memory/1984-66-0x0000000074620000-0x00000000747B4000-memory.dmp

Filesize
1.6MB

Download
memory/1984-64-0x0000000071FB0000-0x00000000729C0000-memory.dmp

Filesize
10.1MB

Download
memory/1984-59-0x0000000071290000-0x0000000071FAD000-memory.dmp

Filesize
13.1MB

Download
memory/1984-54-0x00000000012D0000-0x000000000134A000-memory.dmp

Filesize
488KB

Download
memory/1984-62-0x0000000070AB0000-0x0000000071290000-memory.dmp

Filesize
7.9MB

Download
memory/1984-61-0x0000000070370000-0x0000000070AAE000-memory.dmp

Filesize
7.2MB

Download
memory/1984-60-0x0000000074520000-0x000000007461C000-memory.dmp

Filesize
1008KB

Download
memory/2004-82-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2004-80-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2004-76-0x00000000024A0000-0x00000000027A3000-memory.dmp

Filesize
3.0MB

Download
memory/2004-70-0x000000000041B5F0-mapping.dmp

Download
memory/2004-69-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads