formbook | b3592dda04b6002e7edf6dc1fd693ce34f0e592e305ed55b226d25a635033c33

General

Target

inquiry.exe
Size

763KB
MD5

b925e8efec4bb9d7aeb0942999de6d93
SHA1

f67ee80014f98136c12d2c72f155bd2371b9df84
SHA256

b3592dda04b6002e7edf6dc1fd693ce34f0e592e305ed55b226d25a635033c33
SHA512

c2bed2d02391da41f9210b51adaf4990e1a60140ad63d2de200ff62ab9dfe376aef89b2a33c1f0d6ee079eca3cb7f051deeed36adafde249987f730abe5989f7

Score

10^/10

formbook ja38 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ja38

Decoy

check-info-asked.com

d1g1tal-loops.com

jouw-server.online

xn--9l4b93h4ub.com

jju21.com

johndivine.com

boardinghouses.net

evergreeneq.com

lovemya.xyz

szovegmuhely.com

worldwidedatazehn.net

hollandmulchus.com

mhcbrokers.com

brainwellnesssolutions.com

creatioconsultants.com

troyleedesign.store

hayebenefits.com

atom-ontherox.com

pacificoakllc.com

nailonika.online

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1756-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1756-64-0x000000000041F1F0-mapping.dmp	formbook
behavioral1/memory/1756-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1348-74-0x0000000000130000-0x000000000015F000-memory.dmp	formbook
behavioral1/memory/1348-78-0x0000000000130000-0x000000000015F000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1768 cmd.exe

pid	process
1768	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

inquiry.exeinquiry.exemsiexec.exe

description	pid	process	target process
PID 1836 set thread context of 1756	1836	inquiry.exe	inquiry.exe
PID 1756 set thread context of 1224	1756	inquiry.exe	Explorer.EXE
PID 1348 set thread context of 1224	1348	msiexec.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

inquiry.exemsiexec.exe

pid	process
1756	inquiry.exe
1756	inquiry.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe
1348	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

inquiry.exemsiexec.exe

pid process

1756 inquiry.exe
1756 inquiry.exe
1756 inquiry.exe
1348 msiexec.exe
1348 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

inquiry.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 1756 inquiry.exe
Token: SeDebugPrivilege 1348 msiexec.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1756	inquiry.exe
Token: SeDebugPrivilege	1348	msiexec.exe

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

inquiry.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1836 wrote to memory of 1756	1836	inquiry.exe	inquiry.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1224 wrote to memory of 1348	1224	Explorer.EXE	msiexec.exe
PID 1348 wrote to memory of 1768	1348	msiexec.exe	cmd.exe
PID 1348 wrote to memory of 1768	1348	msiexec.exe	cmd.exe
PID 1348 wrote to memory of 1768	1348	msiexec.exe	cmd.exe
PID 1348 wrote to memory of 1768	1348	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1224

C:\Users\Admin\AppData\Local\Temp\inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\inquiry.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1836

C:\Users\Admin\AppData\Local\Temp\inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\inquiry.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1756

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1348

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\inquiry.exe"
3⤵
- Deletes itself
PID:1768

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1224-69-0x0000000004EB0000-0x0000000004FBD000-memory.dmp

Filesize
1.1MB

Download
memory/1224-79-0x0000000004FC0000-0x00000000050D2000-memory.dmp

Filesize
1.1MB

Download
memory/1224-77-0x0000000004FC0000-0x00000000050D2000-memory.dmp

Filesize
1.1MB

Download
memory/1348-78-0x0000000000130000-0x000000000015F000-memory.dmp

Filesize
188KB

Download
memory/1348-76-0x0000000001FE0000-0x0000000002074000-memory.dmp

Filesize
592KB

Download
memory/1348-75-0x0000000002150000-0x0000000002453000-memory.dmp

Filesize
3.0MB

Download
memory/1348-74-0x0000000000130000-0x000000000015F000-memory.dmp

Filesize
188KB

Download
memory/1348-70-0x0000000000000000-mapping.dmp

Download
memory/1348-73-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/1756-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1756-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1756-67-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1756-68-0x0000000000260000-0x0000000000275000-memory.dmp

Filesize
84KB

Download
memory/1756-64-0x000000000041F1F0-mapping.dmp

Download
memory/1756-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1756-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1768-72-0x0000000000000000-mapping.dmp

Download
memory/1836-54-0x0000000000C20000-0x0000000000CE4000-memory.dmp

Filesize
784KB

Download
memory/1836-59-0x0000000004740000-0x0000000004774000-memory.dmp

Filesize
208KB

Download
memory/1836-58-0x0000000005260000-0x00000000052CC000-memory.dmp

Filesize
432KB

Download
memory/1836-57-0x00000000002D0000-0x00000000002DA000-memory.dmp

Filesize
40KB

Download
memory/1836-56-0x00000000002A0000-0x00000000002B6000-memory.dmp

Filesize
88KB

Download
memory/1836-55-0x00000000752D1000-0x00000000752D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads