formbook | e85cd7d06e157555ee16ebfdb91658d4df66d6de9a4a27d8486cf9229d8839f4

General

Target

tmpZL2qxr.exe
Size

1.1MB
MD5

b8e6b70d74bb81b062f170d352ccc20d
SHA1

e2c64cdb1ca16eb27092568933ef60016c8797fa
SHA256

e85cd7d06e157555ee16ebfdb91658d4df66d6de9a4a27d8486cf9229d8839f4
SHA512

1ee177d49027ce6cd23796c9ca66bfd2106c9eba1aced06023246d3ced5da54c524b5621fc964a40a573d754ceda5f056171408c6787c308a614da2fc400dee3

Score

10^/10

formbook modiloader n7ak persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1056-167-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral2/memory/5104-168-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/5104-189-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral2/memory/2620-196-0x00000000007A0000-0x00000000007CE000-memory.dmp	formbook
behavioral2/memory/2620-200-0x00000000007A0000-0x00000000007CE000-memory.dmp	formbook

ModiLoader Second Stage 39 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1056-140-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-141-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-142-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-143-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-145-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-144-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-146-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-147-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-148-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-149-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-150-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-151-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-153-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-154-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-155-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-152-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-156-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-158-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-157-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-160-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-159-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-161-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-162-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-164-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-163-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-165-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-169-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-170-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-171-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-172-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-173-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-180-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-181-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-182-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-183-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-184-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-185-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-186-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1056-187-0x0000000004270000-0x00000000042C4000-memory.dmp	modiloader_stage2

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tmpZL2qxr.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rcjvmicgst = "C:\\Users\\Public\\Libraries\\tsgcimvjcR.url"	tmpZL2qxr.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

DpiScaling.exechkdsk.exe

description	pid	process	target process
PID 5104 set thread context of 3292	5104	DpiScaling.exe	Explorer.EXE
PID 2620 set thread context of 3292	2620	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

DpiScaling.exechkdsk.exe

pid	process
5104	DpiScaling.exe
5104	DpiScaling.exe
5104	DpiScaling.exe
5104	DpiScaling.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe
2620	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3292 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

DpiScaling.exechkdsk.exe

pid process

5104 DpiScaling.exe
5104 DpiScaling.exe
5104 DpiScaling.exe
2620 chkdsk.exe
2620 chkdsk.exe

pid	process
3292	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

DpiScaling.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	5104	DpiScaling.exe
Token: SeDebugPrivilege	2620	chkdsk.exe
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE
Token: SeShutdownPrivilege	3292	Explorer.EXE
Token: SeCreatePagefilePrivilege	3292	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

3292 Explorer.EXE
3292 Explorer.EXE
3292 Explorer.EXE
3292 Explorer.EXE

pid	process
3292	Explorer.EXE
3292	Explorer.EXE
3292	Explorer.EXE
3292	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

tmpZL2qxr.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 1056 wrote to memory of 5104	1056	tmpZL2qxr.exe	DpiScaling.exe
PID 3292 wrote to memory of 2620	3292	Explorer.EXE	chkdsk.exe
PID 3292 wrote to memory of 2620	3292	Explorer.EXE	chkdsk.exe
PID 3292 wrote to memory of 2620	3292	Explorer.EXE	chkdsk.exe
PID 2620 wrote to memory of 1308	2620	chkdsk.exe	cmd.exe
PID 2620 wrote to memory of 1308	2620	chkdsk.exe	cmd.exe
PID 2620 wrote to memory of 1308	2620	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3292

C:\Users\Admin\AppData\Local\Temp\tmpZL2qxr.exe
"C:\Users\Admin\AppData\Local\Temp\tmpZL2qxr.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5104

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2620

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\DpiScaling.exe"
3⤵
PID:1308

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1056-167-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/1056-160-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-140-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-143-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-145-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-144-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-146-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-147-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-148-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-149-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-150-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-151-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-153-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-154-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-155-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-152-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-156-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-158-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-157-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-141-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-159-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-161-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-162-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-164-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-163-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-165-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-142-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-169-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-170-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-171-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-172-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-173-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-180-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-181-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-182-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-183-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-184-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-185-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-186-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1056-187-0x0000000004270000-0x00000000042C4000-memory.dmp

Filesize
336KB

Download
memory/1308-194-0x0000000000000000-mapping.dmp

Download
memory/2620-193-0x0000000000000000-mapping.dmp

Download
memory/2620-196-0x00000000007A0000-0x00000000007CE000-memory.dmp

Filesize
184KB

Download
memory/2620-200-0x00000000007A0000-0x00000000007CE000-memory.dmp

Filesize
184KB

Download
memory/2620-195-0x00000000001B0000-0x00000000001BA000-memory.dmp

Filesize
40KB

Download
memory/2620-197-0x00000000010C0000-0x000000000140A000-memory.dmp

Filesize
3.3MB

Download
memory/2620-198-0x0000000000FA0000-0x0000000001033000-memory.dmp

Filesize
588KB

Download
memory/3292-199-0x0000000003520000-0x00000000035E8000-memory.dmp

Filesize
800KB

Download
memory/3292-192-0x0000000003380000-0x00000000034D1000-memory.dmp

Filesize
1.3MB

Download
memory/3292-201-0x0000000003520000-0x00000000035E8000-memory.dmp

Filesize
800KB

Download
memory/5104-168-0x0000000000000000-mapping.dmp

Download
memory/5104-189-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/5104-190-0x0000000003080000-0x00000000033CA000-memory.dmp

Filesize
3.3MB

Download
memory/5104-191-0x0000000002CE0000-0x0000000002CF4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads