formbook | 0ae244dbfc247ee7c25cd07a9e339e542c20960f6568e02e8cf581acda0cdd5f

General

Target

order.exe
Size

121KB
MD5

ba0a02061fb326c69a925c6ed28a363a
SHA1

e7e668017328b7ceb7bb1f81a5ea048f990d971f
SHA256

aeb2dd004a580971a25e3408e2fc4cc08535bd2a84b0300d763dddace11c6400
SHA512

1000bb2afe9b15632002f64e9c5eab0f2ce66a868df1303d6a4a9fc5bedbd60b13f94faece4fc3faf23fc9e241c893ba1b3c3ebe7f8738bf472e37debe1c7a65

Score

10^/10

formbook fs44 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs44

Decoy

whneat.com

jljcw.net

pocodelivery.com

outofplacezine.com

yavuzcansigorta.com

xinhewood-cn.com

cartogogh.com

5avis.com

joyceyong.art

digitalsurf.community

blackcreekbarns.com

magazinedistribuidor.com

sportsgross.com

drevom.online

mayibeofservice.com

gareloi-digit.com

permitha.net

renaissanceestetica.com

facts-r-friends.com

dach-loc.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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1464-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1464-67-0x000000000041F110-mapping.dmp	formbook
behavioral1/memory/1464-69-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1600-77-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook
behavioral1/memory/1600-81-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

order.exeInstallUtil.execmstp.exe

description	pid	process	target process
PID 756 set thread context of 1464	756	order.exe	InstallUtil.exe
PID 1464 set thread context of 1260	1464	InstallUtil.exe	Explorer.EXE
PID 1600 set thread context of 1260	1600	cmstp.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

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

powershell.exeorder.exeInstallUtil.execmstp.exe

pid	process
2020	powershell.exe
756	order.exe
1464	InstallUtil.exe
1464	InstallUtil.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe
1600	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.execmstp.exe

pid process

1464 InstallUtil.exe
1464 InstallUtil.exe
1464 InstallUtil.exe
1600 cmstp.exe
1600 cmstp.exe

pid	process
1464	InstallUtil.exe
1464	InstallUtil.exe
1464	InstallUtil.exe
1600	cmstp.exe
1600	cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

order.exepowershell.exeInstallUtil.execmstp.exe

description	pid	process
Token: SeDebugPrivilege	756	order.exe
Token: SeDebugPrivilege	2020	powershell.exe
Token: SeDebugPrivilege	1464	InstallUtil.exe
Token: SeDebugPrivilege	1600	cmstp.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

order.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 756 wrote to memory of 2020	756	order.exe	powershell.exe
PID 756 wrote to memory of 2020	756	order.exe	powershell.exe
PID 756 wrote to memory of 2020	756	order.exe	powershell.exe
PID 756 wrote to memory of 2020	756	order.exe	powershell.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 756 wrote to memory of 1464	756	order.exe	InstallUtil.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1260 wrote to memory of 1600	1260	Explorer.EXE	cmstp.exe
PID 1600 wrote to memory of 1176	1600	cmstp.exe	cmd.exe
PID 1600 wrote to memory of 1176	1600	cmstp.exe	cmd.exe
PID 1600 wrote to memory of 1176	1600	cmstp.exe	cmd.exe
PID 1600 wrote to memory of 1176	1600	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\order.exe
"C:\Users\Admin\AppData\Local\Temp\order.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1464

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:1176

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/756-54-0x0000000000A80000-0x0000000000AA4000-memory.dmp

Filesize
144KB

Download
memory/756-56-0x0000000005030000-0x00000000050D6000-memory.dmp

Filesize
664KB

Download
memory/756-57-0x0000000004830000-0x000000000487C000-memory.dmp

Filesize
304KB

Download
memory/756-55-0x00000000755B1000-0x00000000755B3000-memory.dmp

Filesize
8KB

Download
memory/1176-76-0x0000000000000000-mapping.dmp

Download
memory/1260-72-0x00000000073E0000-0x0000000007528000-memory.dmp

Filesize
1.3MB

Download
memory/1260-82-0x0000000002AF0000-0x0000000002BBC000-memory.dmp

Filesize
816KB

Download
memory/1260-80-0x0000000002AF0000-0x0000000002BBC000-memory.dmp

Filesize
816KB

Download
memory/1464-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1464-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1464-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1464-67-0x000000000041F110-mapping.dmp

Download
memory/1464-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1464-70-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1464-71-0x00000000001B0000-0x00000000001C4000-memory.dmp

Filesize
80KB

Download
memory/1600-75-0x0000000000BF0000-0x0000000000C08000-memory.dmp

Filesize
96KB

Download
memory/1600-73-0x0000000000000000-mapping.dmp

Download
memory/1600-77-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1600-78-0x0000000002010000-0x0000000002313000-memory.dmp

Filesize
3.0MB

Download
memory/1600-79-0x00000000008C0000-0x0000000000953000-memory.dmp

Filesize
588KB

Download
memory/1600-81-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2020-62-0x00000000701C0000-0x000000007076B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-61-0x00000000701C0000-0x000000007076B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-60-0x00000000701C0000-0x000000007076B000-memory.dmp

Filesize
5.7MB

Download
memory/2020-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads