formbook | 75578cc43cd05f1f12fafa2fb898c0b3875fe550a52dfe09dc7ff2cf7ee2eacd

General

Target

Salary.exe
Size

354KB
MD5

3abc3bd58ec7ecd38e1f25823a3a1833
SHA1

887ac2315f548e3699d0ad340b4b677a679ec434
SHA256

9c5d88a1518cd310e763757d9acd267ed5741d6c79036e1053381729a0d700ca
SHA512

393e69f3741a477a77aefb9e2082829e05a2b68f173e29f2cae909661739f307754161b16b1a8820cd5d614e51adddf95f111696edd33c066c7fc77ad931b067

Score

10^/10

formbook g8u persistence rat rezer0 spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.0

Campaign

g8u

Decoy

stuition.com

mj-sculpture.com

cannatainmentevents.com

dianjintang.com

rmlusitania.info

effet-spiruline.com

flatheme.com

supergaminator-vip.com

craftyourmagic.com

lakai.ltd

electionshawaii.com

iqpdct.com

thebestfourstarhotels.com

satoshiceo.com

saintmartiner.com

brothersmarinetoronto.com

citicoin.online

scentsationalsniffers.com

hellonighbourgameees.com

displayonline-france.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/1356-60-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/1356-61-0x000000000041E370-mapping.dmp	formbook
behavioral1/memory/1356-63-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/932-69-0x00000000000D0000-0x00000000000FD000-memory.dmp	formbook

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/988-56-0x0000000004510000-0x000000000454A000-memory.dmp	rezer0

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YRZX9FWHIX = "C:\\Program Files (x86)\\L-z4lwvzh\\helprff4l.exe"	help.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

764 cmd.exe

pid	process
764	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Salary.exeSalary.exehelp.exe

description	pid	process	target process
PID 988 set thread context of 1356	988	Salary.exe	Salary.exe
PID 1356 set thread context of 1232	1356	Salary.exe	Explorer.EXE
PID 932 set thread context of 1232	932	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\L-z4lwvzh\helprff4l.exe help.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\L-z4lwvzh\helprff4l.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

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

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

Salary.exehelp.exe

pid	process
1356	Salary.exe
1356	Salary.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe
932	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Salary.exehelp.exe

pid process

1356 Salary.exe
1356 Salary.exe
1356 Salary.exe
932 help.exe
932 help.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Salary.exehelp.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1356 Salary.exe
Token: SeDebugPrivilege 932 help.exe
Token: SeShutdownPrivilege 1232 Explorer.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1232 Explorer.EXE
1232 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1232 Explorer.EXE
1232 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1356	Salary.exe
Token: SeDebugPrivilege	932	help.exe
Token: SeShutdownPrivilege	1232	Explorer.EXE

pid	process
1232	Explorer.EXE
1232	Explorer.EXE

pid	process
1232	Explorer.EXE
1232	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Salary.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 988 wrote to memory of 1356	988	Salary.exe	Salary.exe
PID 1232 wrote to memory of 932	1232	Explorer.EXE	help.exe
PID 1232 wrote to memory of 932	1232	Explorer.EXE	help.exe
PID 1232 wrote to memory of 932	1232	Explorer.EXE	help.exe
PID 1232 wrote to memory of 932	1232	Explorer.EXE	help.exe
PID 932 wrote to memory of 764	932	help.exe	cmd.exe
PID 932 wrote to memory of 764	932	help.exe	cmd.exe
PID 932 wrote to memory of 764	932	help.exe	cmd.exe
PID 932 wrote to memory of 764	932	help.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:1232

C:\Users\Admin\AppData\Local\Temp\Salary.exe
"C:\Users\Admin\AppData\Local\Temp\Salary.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:988

C:\Users\Admin\AppData\Local\Temp\Salary.exe
"C:\Users\Admin\AppData\Local\Temp\Salary.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1356

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.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:932

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Salary.exe"
3⤵
- Deletes itself
PID:764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\3M7QRD2U\3M7logim.jpeg
Filesize
62KB

MD5
35be22f04a083f244ecf878e7778ad32

SHA1
207cd2030880aeb8ea79e3a120779ba85452b239

SHA256
0b6c7a024831d9645272efad7aeca9596059eb21346e23d4459c10b01b0edfa1

SHA512
ddae6de657f43ee6d3b00af0044102401cf7671bed4b1d7d9f6dae2886e496ad6f673a7eee91eeb7ddf32de0f69ad6559ea82d0cdf2272c7d7d97cfc7a9274a6

Download Submit
C:\Users\Admin\AppData\Roaming\3M7QRD2U\3M7logri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\3M7QRD2U\3M7logrv.ini
Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/764-71-0x0000000000000000-mapping.dmp

Download
memory/932-74-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/932-69-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download
memory/932-72-0x0000000000470000-0x0000000000503000-memory.dmp

Filesize
588KB

Download
memory/932-70-0x00000000007D0000-0x0000000000AD3000-memory.dmp

Filesize
3.0MB

Download
memory/932-67-0x0000000000000000-mapping.dmp

Download
memory/932-68-0x0000000000C30000-0x0000000000C36000-memory.dmp

Filesize
24KB

Download
memory/988-56-0x0000000004510000-0x000000000454A000-memory.dmp

Filesize
232KB

Download
memory/988-55-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/988-54-0x0000000000200000-0x000000000025E000-memory.dmp

Filesize
376KB

Download
memory/1232-66-0x0000000005FD0000-0x000000000613A000-memory.dmp

Filesize
1.4MB

Download
memory/1232-73-0x00000000064F0000-0x0000000006681000-memory.dmp

Filesize
1.6MB

Download
memory/1356-65-0x0000000000260000-0x0000000000274000-memory.dmp

Filesize
80KB

Download
memory/1356-64-0x0000000000810000-0x0000000000B13000-memory.dmp

Filesize
3.0MB

Download
memory/1356-63-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1356-61-0x000000000041E370-mapping.dmp

Download
memory/1356-60-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1356-58-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1356-57-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads