formbook | 147690957c45aafb5929325a902f5c45e9b3a9845f0c9b273bd1e08f5e327d12

General

Target

PRS TT copy_pdf.exe
Size

297KB
MD5

c19720396e3a0517b1c3e9c75dcab551
SHA1

ceb4ae7e086ebfed538632b9413b7f61c23f6151
SHA256

147690957c45aafb5929325a902f5c45e9b3a9845f0c9b273bd1e08f5e327d12
SHA512

a16e89c0a6112c1bd0eb75b61337e99ccd68b19b89e6cbbfcc6baa0bcaaffe6cabc209662240d0c929205c67d0ae5822e85b43be5f9d3b7cb62b947b890f00fc

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.destinny.com/s9zh/

Decoy

paintedinafrica.com

electrumfix.download

edlange.com

tqiawy.xyz

satiscenter.xyz

nc-affiliates.com

agencybuilderforum.com

testabcde.net

venisseturf.net

rubenvdsande.com

nzmatrimony.com

mdthriftsandflips.com

virtualfxstudio.com

communityinsuranceut.com

qqbokep.com

copeva.net

bookedupdaily.com

houstongrowmyairway.com

fortunapublishing.com

empireplumbingandheating.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2728-3-0x000000000041D060-mapping.dmp	xloader
behavioral2/memory/2728-2-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2992-5-0x0000000000000000-mapping.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Drops desktop.ini file(s) 2 IoCs

Processes:

PRS TT copy_pdf.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	PRS TT copy_pdf.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	PRS TT copy_pdf.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PRS TT copy_pdf.exevbc.exemsdt.exe

description	pid	process	target process
PID 816 set thread context of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 2728 set thread context of 3048	2728	vbc.exe	Explorer.EXE
PID 2992 set thread context of 3048	2992	msdt.exe	Explorer.EXE

Drops file in Windows directory 3 IoCs

Processes:

PRS TT copy_pdf.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	PRS TT copy_pdf.exe
File created	C:\Windows\assembly\Desktop.ini	PRS TT copy_pdf.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	PRS TT copy_pdf.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1760 816 WerFault.exe PRS TT copy_pdf.exe

pid	pid_target	process	target process
1760	816	WerFault.exe	PRS TT copy_pdf.exe

Suspicious behavior: EnumeratesProcesses 73 IoCs

Processes:

PRS TT copy_pdf.exevbc.exeWerFault.exemsdt.exe

pid	process
816	PRS TT copy_pdf.exe
816	PRS TT copy_pdf.exe
816	PRS TT copy_pdf.exe
2728	vbc.exe
2728	vbc.exe
2728	vbc.exe
2728	vbc.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
1760	WerFault.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe
2992	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exemsdt.exe

pid process

2728 vbc.exe
2728 vbc.exe
2728 vbc.exe
2992 msdt.exe
2992 msdt.exe

pid	process
2728	vbc.exe
2728	vbc.exe
2728	vbc.exe
2992	msdt.exe
2992	msdt.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

PRS TT copy_pdf.exevbc.exeWerFault.exeExplorer.EXEmsdt.exe

description	pid	process
Token: SeDebugPrivilege	816	PRS TT copy_pdf.exe
Token: SeDebugPrivilege	2728	vbc.exe
Token: SeRestorePrivilege	1760	WerFault.exe
Token: SeBackupPrivilege	1760	WerFault.exe
Token: SeDebugPrivilege	1760	WerFault.exe
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeShutdownPrivilege	3048	Explorer.EXE
Token: SeCreatePagefilePrivilege	3048	Explorer.EXE
Token: SeDebugPrivilege	2992	msdt.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3048 Explorer.EXE

pid	process
3048	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PRS TT copy_pdf.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 816 wrote to memory of 2728	816	PRS TT copy_pdf.exe	vbc.exe
PID 3048 wrote to memory of 2992	3048	Explorer.EXE	msdt.exe
PID 3048 wrote to memory of 2992	3048	Explorer.EXE	msdt.exe
PID 3048 wrote to memory of 2992	3048	Explorer.EXE	msdt.exe
PID 2992 wrote to memory of 3044	2992	msdt.exe	cmd.exe
PID 2992 wrote to memory of 3044	2992	msdt.exe	cmd.exe
PID 2992 wrote to memory of 3044	2992	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3048

C:\Users\Admin\AppData\Local\Temp\PRS TT copy_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PRS TT copy_pdf.exe"
2⤵
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 816 -s 1080
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1760

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2992

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
3⤵
PID:3044

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1760-4-0x0000000004E20000-0x0000000004E21000-memory.dmp

Filesize
4KB

Download
memory/2728-3-0x000000000041D060-mapping.dmp

Download
memory/2728-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2992-5-0x0000000000000000-mapping.dmp

Download
memory/2992-6-0x0000000001020000-0x0000000001193000-memory.dmp

Filesize
1.4MB

Download
memory/2992-7-0x0000000001020000-0x0000000001193000-memory.dmp

Filesize
1.4MB

Download
memory/3044-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads