formbook | 44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618

General

Target

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe
Size

414KB
MD5

f3becd80be8779dfeb8ca5791f7ffb86
SHA1

91f03335ff735cef93edafc6748d354d08eabe87
SHA256

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618
SHA512

f508be9b45170e7669c69ab6ec4849ddb318ee8d9a0d3ffc906197747de67b94d4c32b8aecb383fee6ce49d7e364a07743c8e3a7ed6e91132219633d65661abb

Score

10^/10

formbook kvsz rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kvsz

Decoy

hdlivesonlinetv24.com

illaheehillsseniorliving.com

wihong.com

christopher-cost.com

huayvipee.com

csdroped.xyz

relationsvivantes.com

xmcombohome.com

qingc2.com

sunsetcinemamusic.com

anotherheadache.com

connectlcv.com

unitermi.com

cugetarileunuisarman.com

agakegois.com

burnercouture.com

ambassador-holidays.com

schnarr-design.com

2013lang.com

httattoos.com

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1992-65-0x000000000041ED10-mapping.dmp	formbook
behavioral1/memory/1992-64-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1992-67-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1776-75-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exeRegSvcs.exeraserver.exe

description	pid	process	target process
PID 980 set thread context of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 1992 set thread context of 1352	1992	RegSvcs.exe	Explorer.EXE
PID 1776 set thread context of 1352	1776	raserver.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2028 schtasks.exe

pid	process
2028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exeRegSvcs.exeraserver.exe

pid	process
980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe
1992	RegSvcs.exe
1992	RegSvcs.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe
1776	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exeraserver.exe

pid process

1992 RegSvcs.exe
1992 RegSvcs.exe
1992 RegSvcs.exe
1776 raserver.exe
1776 raserver.exe

pid	process
1992	RegSvcs.exe
1992	RegSvcs.exe
1992	RegSvcs.exe
1776	raserver.exe
1776	raserver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exeRegSvcs.exeraserver.exe

description	pid	process
Token: SeDebugPrivilege	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe
Token: SeDebugPrivilege	1992	RegSvcs.exe
Token: SeDebugPrivilege	1776	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 980 wrote to memory of 2028	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	schtasks.exe
PID 980 wrote to memory of 2028	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	schtasks.exe
PID 980 wrote to memory of 2028	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	schtasks.exe
PID 980 wrote to memory of 2028	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	schtasks.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 980 wrote to memory of 1992	980	44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe	RegSvcs.exe
PID 1352 wrote to memory of 1776	1352	Explorer.EXE	raserver.exe
PID 1352 wrote to memory of 1776	1352	Explorer.EXE	raserver.exe
PID 1352 wrote to memory of 1776	1352	Explorer.EXE	raserver.exe
PID 1352 wrote to memory of 1776	1352	Explorer.EXE	raserver.exe
PID 1776 wrote to memory of 664	1776	raserver.exe	cmd.exe
PID 1776 wrote to memory of 664	1776	raserver.exe	cmd.exe
PID 1776 wrote to memory of 664	1776	raserver.exe	cmd.exe
PID 1776 wrote to memory of 664	1776	raserver.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:1352

C:\Users\Admin\AppData\Local\Temp\44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe
"C:\Users\Admin\AppData\Local\Temp\44a8227ccd3bd1fb5285b84d99282b199594457c73bdab74c4cbeb331e671618.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:980

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HTufYRAKxBK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52E2.tmp"
3⤵
- Creates scheduled task(s)
PID:2028

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:1992

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:664

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp52E2.tmp
Filesize
1KB

MD5
8aae7b6b2e5494c436737fac6a8a19c3

SHA1
cf382a5aade430c3e845ed41f20a2cf650df8f5d

SHA256
be6d5c54b2c350a83532d13a660d9545a49bd19c6a13fc150576aad6dd839af4

SHA512
83b2ad319e7ddaa3d34f5e51195a7ee18df459e56fc8f11e35b7d7317bcee6b5447602f65a66bebd8e45fb9cd11971a9b7835fb3d6e397ac5f32bbd2fe050d06

Download Submit
memory/664-76-0x0000000000000000-mapping.dmp

Download
memory/980-57-0x0000000004780000-0x00000000047D6000-memory.dmp

Filesize
344KB

Download
memory/980-58-0x0000000000790000-0x00000000007C6000-memory.dmp

Filesize
216KB

Download
memory/980-56-0x00000000002D0000-0x00000000002DA000-memory.dmp

Filesize
40KB

Download
memory/980-55-0x0000000076C01000-0x0000000076C03000-memory.dmp

Filesize
8KB

Download
memory/980-54-0x0000000000120000-0x000000000018E000-memory.dmp

Filesize
440KB

Download
memory/1352-70-0x0000000006A10000-0x0000000006BA0000-memory.dmp

Filesize
1.6MB

Download
memory/1352-78-0x00000000049F0000-0x0000000004ABA000-memory.dmp

Filesize
808KB

Download
memory/1776-77-0x0000000001DC0000-0x0000000001E53000-memory.dmp

Filesize
588KB

Download
memory/1776-75-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1776-74-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/1776-73-0x00000000001F0000-0x000000000020C000-memory.dmp

Filesize
112KB

Download
memory/1776-71-0x0000000000000000-mapping.dmp

Download
memory/1992-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1992-69-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/1992-68-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1992-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1992-65-0x000000000041ED10-mapping.dmp

Download
memory/1992-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1992-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2028-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads