formbook | 5114955491d5400511f2c6d6efdc4338d0f7ef7b85f4f3b1d66ffa78f796b81a

General

Target

Demand.exe
Size

311KB
MD5

494a613b4431fab36d742a03b9346f38
SHA1

401ab4d705dfd2fa401ceda974cea623d4d773bb
SHA256

75952934e5ef6bb74f29c3320ef112e219cc953dc5ed8c351d742448f61161ff
SHA512

b939cedd41ec3f60e0054ea75eaede0875988bb4ff9da1cf2a4241f23833d4b8cc9fa3aad465332778bfe1dbcb1932f14249cbadec8ba4b232092be59af23ece

Score

10^/10

formbook zc9 evasion persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

zc9

Decoy

jncnsbc.net

joserodriguezmedinaehijos.seat

hirasyour-onestoptailor.net

ratch328.com

monroauto.com

tropicservicesoffer.com

dubaiangels-mail.net

brookerenee.com

service-support.business

softvikram.com

shuyabaojie.com

peiqilai.com

depart.ltd

srtextilesonline.com

li-h.net

lawssales.com

middlestream2014.com

tribemarketer.com

leaawards.com

fztzlc.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089
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/1636-63-0x000000000041B6B0-mapping.dmp	formbook
behavioral1/memory/1636-62-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/1636-68-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/1488-74-0x00000000000C0000-0x00000000000EA000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YRZX9FWHIX = "C:\\Program Files (x86)\\L-z4lwvzh\\Cookiesrff4l.exe"	netsh.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Demand.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Demand.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Demand.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1104 cmd.exe

pid	process
1104	cmd.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

Demand.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	Demand.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	Demand.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Demand.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Demand.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Demand.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Demand.exeDemand.exenetsh.exe

description	pid	process	target process
PID 376 set thread context of 1636	376	Demand.exe	Demand.exe
PID 1636 set thread context of 1220	1636	Demand.exe	Explorer.EXE
PID 1636 set thread context of 1220	1636	Demand.exe	Explorer.EXE
PID 1488 set thread context of 1220	1488	netsh.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

netsh.exe

description ioc process

File opened for modification C:\Program Files (x86)\L-z4lwvzh\Cookiesrff4l.exe netsh.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\L-z4lwvzh\Cookiesrff4l.exe	netsh.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

powershell.exeDemand.exeDemand.exenetsh.exe

pid	process
1324	powershell.exe
376	Demand.exe
1636	Demand.exe
1636	Demand.exe
1636	Demand.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe
1488	netsh.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Demand.exenetsh.exe

pid process

1636 Demand.exe
1636 Demand.exe
1636 Demand.exe
1636 Demand.exe
1488 netsh.exe
1488 netsh.exe

pid	process
1636	Demand.exe
1636	Demand.exe
1636	Demand.exe
1636	Demand.exe
1488	netsh.exe
1488	netsh.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exeDemand.exeDemand.exenetsh.exe

description	pid	process
Token: SeDebugPrivilege	1324	powershell.exe
Token: SeDebugPrivilege	376	Demand.exe
Token: SeDebugPrivilege	1636	Demand.exe
Token: SeDebugPrivilege	1488	netsh.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

Demand.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 376 wrote to memory of 1324	376	Demand.exe	powershell.exe
PID 376 wrote to memory of 1324	376	Demand.exe	powershell.exe
PID 376 wrote to memory of 1324	376	Demand.exe	powershell.exe
PID 376 wrote to memory of 1324	376	Demand.exe	powershell.exe
PID 376 wrote to memory of 1712	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1712	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1712	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1712	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 376 wrote to memory of 1636	376	Demand.exe	Demand.exe
PID 1220 wrote to memory of 1488	1220	Explorer.EXE	netsh.exe
PID 1220 wrote to memory of 1488	1220	Explorer.EXE	netsh.exe
PID 1220 wrote to memory of 1488	1220	Explorer.EXE	netsh.exe
PID 1220 wrote to memory of 1488	1220	Explorer.EXE	netsh.exe
PID 1488 wrote to memory of 1104	1488	netsh.exe	cmd.exe
PID 1488 wrote to memory of 1104	1488	netsh.exe	cmd.exe
PID 1488 wrote to memory of 1104	1488	netsh.exe	cmd.exe
PID 1488 wrote to memory of 1104	1488	netsh.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:1220

C:\Users\Admin\AppData\Local\Temp\Demand.exe
"C:\Users\Admin\AppData\Local\Temp\Demand.exe"
2⤵
- Checks BIOS information in registry
- Windows security modification
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1324

C:\Users\Admin\AppData\Local\Temp\Demand.exe
"{path}"
3⤵
PID:1712

C:\Users\Admin\AppData\Local\Temp\Demand.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1636

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1644

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Demand.exe"
3⤵
- Deletes itself
PID:1104

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

T1112

Disabling Security Tools

2

T1089

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\5N62R1UA\5N6logim.jpeg
Filesize
56KB

MD5
ae8d7f7d23c324337091a3029e9b484e

SHA1
b1f370c74023bcc15a483559d3086be97d2c6e76

SHA256
d9f2eefc0ed91803f2d53c4ce19b36f5ddf6e620025305101dac35f553fbf1f5

SHA512
e0005defaf460d5f8a958211ddefb5e167c8833c3283b464e5f15cf31284e76de52afaf06615f6bdbe43624f4399f12c610729f6a267a14059d836c685ffe102

Download Submit
C:\Users\Admin\AppData\Roaming\5N62R1UA\5N6logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\5N62R1UA\5N6logrv.ini
Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/376-54-0x00000000764C1000-0x00000000764C3000-memory.dmp

Filesize
8KB

Download
memory/376-55-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/1104-72-0x0000000000000000-mapping.dmp

Download
memory/1220-77-0x0000000004DC0000-0x0000000004EE1000-memory.dmp

Filesize
1.1MB

Download
memory/1220-67-0x0000000004BB0000-0x0000000004CA4000-memory.dmp

Filesize
976KB

Download
memory/1220-70-0x0000000004CB0000-0x0000000004DBB000-memory.dmp

Filesize
1.0MB

Download
memory/1324-58-0x0000000074860000-0x0000000074E0B000-memory.dmp

Filesize
5.7MB

Download
memory/1324-56-0x0000000000000000-mapping.dmp

Download
memory/1488-73-0x00000000012C0000-0x00000000012DB000-memory.dmp

Filesize
108KB

Download
memory/1488-76-0x0000000000980000-0x0000000000A13000-memory.dmp

Filesize
588KB

Download
memory/1488-75-0x0000000000BC0000-0x0000000000EC3000-memory.dmp

Filesize
3.0MB

Download
memory/1488-74-0x00000000000C0000-0x00000000000EA000-memory.dmp

Filesize
168KB

Download
memory/1488-71-0x0000000000000000-mapping.dmp

Download
memory/1636-63-0x000000000041B6B0-mapping.dmp

Download
memory/1636-69-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/1636-68-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1636-66-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/1636-65-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1636-62-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1636-60-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1636-59-0x0000000000400000-0x000000000042A000-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