formbook | 996e0d318e87eec169553d7a73048312946a95d9f07cb6f7ac01227955ad619c

General

Target

PO3117_002422.exe
Size

11KB
MD5

a870810c6219011f00d22b6881c322b7
SHA1

3569ca5bd8eb29b3fdaa5fbf2209ea69d38428fc
SHA256

996e0d318e87eec169553d7a73048312946a95d9f07cb6f7ac01227955ad619c
SHA512

0a95e3cbb62f387fd078dc3c81cb944bde566baecb14642f580249cb4a054e2b5e024103150552636f8f2a030a00927ce425f8da2d9ce492bcbc466db09605f7

Score

10^/10

formbook df48 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

df48

Decoy

tinder.pw

flowersfoodsbrands.net

broadbandbangalore.com

wittyhealthy.com

mediking.online

pounchbowl.com

gridkart.com

mobrtho.com

starlinerecruitment.com

ernieswinesandliquors.com

dsbvgf.com

messiahbaptist.church

sumsandals.com

familieheineken.online

fikifika.com

beg.wtf

euroconsult.net

radiologist24.com

fuji-privatevilla.com

flemming.store

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
behavioral2/memory/1868-138-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1868-140-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/540-146-0x0000000000540000-0x000000000056F000-memory.dmp	formbook
behavioral2/memory/540-149-0x0000000000540000-0x000000000056F000-memory.dmp	formbook

Drops startup file 2 IoCs

Processes:

PO3117_002422.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO3117_002422.exe	PO3117_002422.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO3117_002422.exe	PO3117_002422.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO3117_002422.exePO3117_002422.exeNETSTAT.EXE

description	pid	process	target process
PID 4320 set thread context of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 1868 set thread context of 2232	1868	PO3117_002422.exe	Explorer.EXE
PID 540 set thread context of 2232	540	NETSTAT.EXE	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

540 NETSTAT.EXE

pid	process
540	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

PO3117_002422.exePO3117_002422.exeNETSTAT.EXE

pid	process
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
4320	PO3117_002422.exe
1868	PO3117_002422.exe
1868	PO3117_002422.exe
1868	PO3117_002422.exe
1868	PO3117_002422.exe
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE
540	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2232 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PO3117_002422.exeNETSTAT.EXE

pid process

1868 PO3117_002422.exe
1868 PO3117_002422.exe
1868 PO3117_002422.exe
540 NETSTAT.EXE
540 NETSTAT.EXE
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO3117_002422.exePO3117_002422.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 4320 PO3117_002422.exe
Token: SeDebugPrivilege 1868 PO3117_002422.exe
Token: SeDebugPrivilege 540 NETSTAT.EXE

pid	process
2232	Explorer.EXE

pid	process
1868	PO3117_002422.exe
1868	PO3117_002422.exe
1868	PO3117_002422.exe
540	NETSTAT.EXE
540	NETSTAT.EXE

description	pid	process
Token: SeDebugPrivilege	4320	PO3117_002422.exe
Token: SeDebugPrivilege	1868	PO3117_002422.exe
Token: SeDebugPrivilege	540	NETSTAT.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PO3117_002422.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 4320 wrote to memory of 1868	4320	PO3117_002422.exe	PO3117_002422.exe
PID 2232 wrote to memory of 540	2232	Explorer.EXE	NETSTAT.EXE
PID 2232 wrote to memory of 540	2232	Explorer.EXE	NETSTAT.EXE
PID 2232 wrote to memory of 540	2232	Explorer.EXE	NETSTAT.EXE
PID 540 wrote to memory of 5072	540	NETSTAT.EXE	cmd.exe
PID 540 wrote to memory of 5072	540	NETSTAT.EXE	cmd.exe
PID 540 wrote to memory of 5072	540	NETSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Temp\PO3117_002422.exe
"C:\Users\Admin\AppData\Local\Temp\PO3117_002422.exe"
2⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4320

C:\Users\Admin\AppData\Local\Temp\PO3117_002422.exe
"C:\Users\Admin\AppData\Local\Temp\PO3117_002422.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1868

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:540

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO3117_002422.exe"
3⤵
PID:5072

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/540-144-0x0000000000000000-mapping.dmp

Download
memory/540-150-0x0000000000C80000-0x0000000000D13000-memory.dmp

Filesize
588KB

Download
memory/540-149-0x0000000000540000-0x000000000056F000-memory.dmp

Filesize
188KB

Download
memory/540-147-0x0000000000EE0000-0x000000000122A000-memory.dmp

Filesize
3.3MB

Download
memory/540-146-0x0000000000540000-0x000000000056F000-memory.dmp

Filesize
188KB

Download
memory/540-145-0x0000000000510000-0x000000000051B000-memory.dmp

Filesize
44KB

Download
memory/1868-137-0x0000000000000000-mapping.dmp

Download
memory/1868-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1868-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1868-141-0x00000000011C0000-0x000000000150A000-memory.dmp

Filesize
3.3MB

Download
memory/1868-142-0x0000000001190000-0x00000000011A4000-memory.dmp

Filesize
80KB

Download
memory/2232-143-0x0000000008D20000-0x0000000008E5A000-memory.dmp

Filesize
1.2MB

Download
memory/2232-151-0x0000000008F00000-0x0000000009058000-memory.dmp

Filesize
1.3MB

Download
memory/2232-152-0x0000000008F00000-0x0000000009058000-memory.dmp

Filesize
1.3MB

Download
memory/4320-132-0x0000000000F80000-0x0000000000F8A000-memory.dmp

Filesize
40KB

Download
memory/4320-136-0x0000000006FD0000-0x0000000007036000-memory.dmp

Filesize
408KB

Download
memory/4320-135-0x0000000006F30000-0x0000000006FCC000-memory.dmp

Filesize
624KB

Download
memory/4320-134-0x0000000005940000-0x00000000059D2000-memory.dmp

Filesize
584KB

Download
memory/4320-133-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/5072-148-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads