formbook | 53b80c327454a3fb82a2b1b5eac96eeaaf91b3b309fdb4d8a3c8cc53d8ea1696

General

Target

Payment_Advice Ref_G51433980115....pdf.exe
Size

311KB
MD5

419fdeab3e062e913643037511fee430
SHA1

3c11f5dfdae578ab1e7afb87f05acf9477ee28cf
SHA256

76d45ff13654988781428940dab2825a158e15679d0f1faf9615b76a2cbff4a7
SHA512

2c108227bb344a271dec116251796049927a4df8fa7716d1b33a20df42fe840ac4f684e3af42bb64944d882bac06c90fd2217d6052cb3523667b3b3529c29a86

Score

10^/10

formbook ms20 persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

ms20

Decoy

ginayjasive.net

unique-bruce.com

marcaschingonas.net

artandartistonline.com

creditcubeaa.com

jnlunwen.com

adriangallop.com

gardenmebydjnui.com

dakdekker-utrecht.com

padmatrades.com

esseconsultingllc.com

heisenlintec.com

110431.info

posseco.com

team10hoodies.site

sciencewtour.com

paigeslife.com

idea-asesoria.com

crypotland.com

862575zk.info

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1276-54-0x0000000000970000-0x00000000009C2000-memory.dmp	formbook
behavioral1/memory/1276-55-0x0000000000970000-0x00000000009C2000-memory.dmp	formbook
behavioral1/memory/1920-62-0x0000000000090000-0x00000000000BA000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1120 cmd.exe

pid	process
1120	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KZTDUFWHVL = "C:\\Program Files (x86)\\Qzvqlxvc0\\configmfil_ru.exe"	msiexec.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Payment_Advice Ref_G51433980115....pdf.exemsiexec.exe

description	pid	process	target process
PID 1276 set thread context of 1352	1276	Payment_Advice Ref_G51433980115....pdf.exe	Explorer.EXE
PID 1920 set thread context of 1352	1920	msiexec.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File opened for modification C:\Program Files (x86)\Qzvqlxvc0\configmfil_ru.exe msiexec.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Qzvqlxvc0\configmfil_ru.exe	msiexec.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

Payment_Advice Ref_G51433980115....pdf.exemsiexec.exe

pid	process
1276	Payment_Advice Ref_G51433980115....pdf.exe
1276	Payment_Advice Ref_G51433980115....pdf.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe
1920	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Payment_Advice Ref_G51433980115....pdf.exemsiexec.exe

pid	process
1276	Payment_Advice Ref_G51433980115....pdf.exe
1276	Payment_Advice Ref_G51433980115....pdf.exe
1276	Payment_Advice Ref_G51433980115....pdf.exe
1920	msiexec.exe
1920	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Payment_Advice Ref_G51433980115....pdf.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 1276 Payment_Advice Ref_G51433980115....pdf.exe
Token: SeDebugPrivilege 1920 msiexec.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1352 Explorer.EXE
1352 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1276	Payment_Advice Ref_G51433980115....pdf.exe
Token: SeDebugPrivilege	1920	msiexec.exe

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

pid	process
1352	Explorer.EXE
1352	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Explorer.EXEmsiexec.exe

description	pid	process	target process
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1352 wrote to memory of 1920	1352	Explorer.EXE	msiexec.exe
PID 1920 wrote to memory of 1120	1920	msiexec.exe	cmd.exe
PID 1920 wrote to memory of 1120	1920	msiexec.exe	cmd.exe
PID 1920 wrote to memory of 1120	1920	msiexec.exe	cmd.exe
PID 1920 wrote to memory of 1120	1920	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:1352
- C:\Users\Admin\AppData\Local\Temp\Payment_Advice Ref_G51433980115....pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment_Advice Ref_G51433980115....pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1276
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Payment_Advice Ref_G51433980115....pdf.exe"
    3⤵
    - Deletes itself
    PID:1120

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

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\KNPQ3D98\KNPlogim.jpeg

Filesize
66KB

MD5
c1412670faf573b78fb72a18c0f9268b

SHA1
12631bdfc81058f71e314873f2ef8123a51b300c

SHA256
a39b1e6c33be6ca44ab7cd806b042336e452e9dba7562b63469c3f63f123193d

SHA512
1bda000c08759238f323c8e211ce02ee717ed4ab41387e418f7e0f96483e19bceb5ec88daf8a835342a76b0394c42fce83187d21743b644593646ecfc1147abd

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ3D98\KNPlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ3D98\KNPlogrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
memory/1120-64-0x0000000000000000-mapping.dmp

Download
memory/1276-56-0x0000000002280000-0x0000000002583000-memory.dmp

Filesize
3.0MB

Download
memory/1276-57-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1276-55-0x0000000000970000-0x00000000009C2000-memory.dmp

Filesize
328KB

Download
memory/1276-54-0x0000000000970000-0x00000000009C2000-memory.dmp

Filesize
328KB

Download
memory/1352-66-0x00000000049F0000-0x0000000004B12000-memory.dmp

Filesize
1.1MB

Download
memory/1352-58-0x0000000006A10000-0x0000000006B98000-memory.dmp

Filesize
1.5MB

Download
memory/1920-63-0x0000000002390000-0x0000000002693000-memory.dmp

Filesize
3.0MB

Download
memory/1920-62-0x0000000000090000-0x00000000000BA000-memory.dmp

Filesize
168KB

Download
memory/1920-65-0x00000000007C0000-0x0000000000853000-memory.dmp

Filesize
588KB

Download
memory/1920-61-0x00000000008A0000-0x00000000008B4000-memory.dmp

Filesize
80KB

Download
memory/1920-60-0x0000000076C01000-0x0000000076C03000-memory.dmp

Filesize
8KB

Download
memory/1920-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads