formbook | cde5b9157162c55139f508884d7be6be903acc9d85842a667c1b2ef04a1ecd49

General

Target

PO389732.exe
Size

325KB
MD5

4cd3bc98fa3df22248c7e5d63dbe1168
SHA1

fb32e85f940945c6c0d3052b80f48f5bc48f7c7d
SHA256

cde5b9157162c55139f508884d7be6be903acc9d85842a667c1b2ef04a1ecd49
SHA512

0b2d2ada876da8ae777b80f2b99895b62449052e723ef5c6a71d02c317dc6c34346f1a35ea875149f2ebd94b775a7b8e3f2e712e2765e0e2fe82c2ec7376896e

Score

10^/10

spyware persistence trojan stealer formbook

Malware Config

Signatures

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PO389732.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1528 wrote to memory of 1860	1528	PO389732.exe	PO389732.exe
PID 1316 wrote to memory of 1872	1316	Explorer.EXE	svchost.exe
PID 1316 wrote to memory of 1872	1316	Explorer.EXE	svchost.exe
PID 1316 wrote to memory of 1872	1316	Explorer.EXE	svchost.exe
PID 1316 wrote to memory of 1872	1316	Explorer.EXE	svchost.exe
PID 1872 wrote to memory of 1772	1872	svchost.exe	cmd.exe
PID 1872 wrote to memory of 1772	1872	svchost.exe	cmd.exe
PID 1872 wrote to memory of 1772	1872	svchost.exe	cmd.exe
PID 1872 wrote to memory of 1772	1872	svchost.exe	cmd.exe
PID 1872 wrote to memory of 1732	1872	svchost.exe	Firefox.exe
PID 1872 wrote to memory of 1732	1872	svchost.exe	Firefox.exe
PID 1872 wrote to memory of 1732	1872	svchost.exe	Firefox.exe
PID 1872 wrote to memory of 1732	1872	svchost.exe	Firefox.exe
PID 1872 wrote to memory of 1732	1872	svchost.exe	Firefox.exe

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1316 Explorer.EXE
1316 Explorer.EXE
1316 Explorer.EXE
1316 Explorer.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
System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

svchost.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer svchost.exe
Drops file in Program Files directory 1 IoCs

Processes:

svchost.exe

description ioc process

File opened for modification C:\Program Files (x86)\Mpnup\gdiox4ddxuh.exe svchost.exe
Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

pid	process
1316	Explorer.EXE
1316	Explorer.EXE
1316	Explorer.EXE
1316	Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	svchost.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Mpnup\gdiox4ddxuh.exe	svchost.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO389732.exePO389732.exesvchost.exe

description	pid	process	target process
PID 1528 set thread context of 1860	1528	PO389732.exe	PO389732.exe
PID 1860 set thread context of 1316	1860	PO389732.exe	Explorer.EXE
PID 1860 set thread context of 1316	1860	PO389732.exe	Explorer.EXE
PID 1872 set thread context of 1316	1872	svchost.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

PO389732.exesvchost.exe

pid	process
1860	PO389732.exe
1860	PO389732.exe
1860	PO389732.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe
1872	svchost.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

PO389732.exesvchost.exe

pid process

1860 PO389732.exe
1860 PO389732.exe
1860 PO389732.exe
1860 PO389732.exe
1872 svchost.exe
1872 svchost.exe
1872 svchost.exe
1872 svchost.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1772 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO389732.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1860 PO389732.exe
Token: SeDebugPrivilege 1872 svchost.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1316 Explorer.EXE
1316 Explorer.EXE
1316 Explorer.EXE
1316 Explorer.EXE

pid	process
1772	cmd.exe

description	pid	process
Token: SeDebugPrivilege	1860	PO389732.exe
Token: SeDebugPrivilege	1872	svchost.exe

pid	process
1316	Explorer.EXE
1316	Explorer.EXE
1316	Explorer.EXE
1316	Explorer.EXE

Adds Run entry to policy start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XJKDUFP8DN = "C:\\Program Files (x86)\\Mpnup\\gdiox4ddxuh.exe"	svchost.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

svchost.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SendNotifyMessage
- Suspicious use of FindShellTrayWindow
PID:1316

C:\Users\Admin\AppData\Local\Temp\PO389732.exe
"C:\Users\Admin\AppData\Local\Temp\PO389732.exe"
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1528

C:\Users\Admin\AppData\Local\Temp\PO389732.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1860

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of WriteProcessMemory
- System policy modification
- Drops file in Program Files directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to policy start application
- Modifies Internet Explorer settings
PID:1872

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO389732.exe"
3⤵
- Deletes itself
PID:1772

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1732

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

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1316-4-0x00000000069E0000-0x0000000006B3D000-memory.dmp

Filesize
1.4MB

Download
memory/1528-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1732-10-0x0000000000000000-mapping.dmp

Download
memory/1732-11-0x000000013F5F0000-0x000000013F683000-memory.dmp

Filesize
588KB

Download
memory/1772-7-0x0000000000000000-mapping.dmp

Download
memory/1860-2-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1860-3-0x000000000041C160-mapping.dmp

Download
memory/1872-5-0x0000000000000000-mapping.dmp

Download
memory/1872-6-0x0000000000920000-0x0000000000928000-memory.dmp

Filesize
32KB

Download
memory/1872-8-0x0000000001A00000-0x0000000001B07000-memory.dmp

Filesize
1.0MB

Download
memory/1872-9-0x0000000003A30000-0x0000000003B59000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads