formbook | fe6881ed33614e4bad0b45c0500ca544a65ddd0efe2a8b8fc1e5b605bec9ec5c

General

Target

Confirmaci?n de pago.pdf.exe
Size

699KB
MD5

0405849afe352cb943b5ef38e33e5f39
SHA1

047a2fac7f1e5d59340867c99d14f90adf5a1a16
SHA256

64ac613672e24621e590d79800c1028624f90cd6edbab8b64c9608c17497e8bb
SHA512

2c5d7f66479715141353ac2012ab102c56b7dec980e428d8bb39e17ecfdaea0a2baa304eaaf406772ac972d9e17e4a3912568ef9d7ec45f0afd8d20f735ce981

Score

10^/10

formbook de08 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de08

Decoy

retirecloudyyard.com

fabiyan.xyz

chrisarlyde.com

selapex.com

vivalosgales.com

specialty-medicine.com

contasesolucoes.com

satunusanews.net

allyibc.com

alameda1876.com

artofdala.com

yukoidusp.xyz

steeldrumbandnearme.com

stonewedgetechnology.com

kentonai.com

macquarie-private.com

ddgwy.com

megagreenhousekits.com

descomplicaomarketing.com

inclusiverealtor.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/732-143-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/732-157-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4944-163-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4944-169-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Confirmaci_n de pago.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	Confirmaci_n de pago.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Confirmaci_n de pago.pdf.exeRegSvcs.exesvchost.exe

description	pid	process	target process
PID 1144 set thread context of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 732 set thread context of 8	732	RegSvcs.exe	Explorer.EXE
PID 4944 set thread context of 8	4944	svchost.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1152 schtasks.exe

pid	process
1152	schtasks.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

Confirmaci_n de pago.pdf.exepowershell.exeRegSvcs.exesvchost.exe

pid	process
1144	Confirmaci_n de pago.pdf.exe
1144	Confirmaci_n de pago.pdf.exe
1144	Confirmaci_n de pago.pdf.exe
1132	powershell.exe
1144	Confirmaci_n de pago.pdf.exe
732	RegSvcs.exe
732	RegSvcs.exe
732	RegSvcs.exe
732	RegSvcs.exe
1132	powershell.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe
4944	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

8 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exesvchost.exe

pid process

732 RegSvcs.exe
732 RegSvcs.exe
732 RegSvcs.exe
4944 svchost.exe
4944 svchost.exe

pid	process
8	Explorer.EXE

pid	process
732	RegSvcs.exe
732	RegSvcs.exe
732	RegSvcs.exe
4944	svchost.exe
4944	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Confirmaci_n de pago.pdf.exepowershell.exeRegSvcs.exesvchost.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1144	Confirmaci_n de pago.pdf.exe
Token: SeDebugPrivilege	1132	powershell.exe
Token: SeDebugPrivilege	732	RegSvcs.exe
Token: SeDebugPrivilege	4944	svchost.exe
Token: SeShutdownPrivilege	8	Explorer.EXE
Token: SeCreatePagefilePrivilege	8	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Confirmaci_n de pago.pdf.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 1144 wrote to memory of 1132	1144	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1144 wrote to memory of 1132	1144	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1144 wrote to memory of 1132	1144	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1144 wrote to memory of 1152	1144	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1144 wrote to memory of 1152	1144	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1144 wrote to memory of 1152	1144	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1144 wrote to memory of 1052	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 1052	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 1052	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1144 wrote to memory of 732	1144	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 8 wrote to memory of 4944	8	Explorer.EXE	svchost.exe
PID 8 wrote to memory of 4944	8	Explorer.EXE	svchost.exe
PID 8 wrote to memory of 4944	8	Explorer.EXE	svchost.exe
PID 4944 wrote to memory of 3532	4944	svchost.exe	cmd.exe
PID 4944 wrote to memory of 3532	4944	svchost.exe	cmd.exe
PID 4944 wrote to memory of 3532	4944	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:8

C:\Users\Admin\AppData\Local\Temp\Confirmaci_n de pago.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmaci_n de pago.pdf.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1144

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\txDCmPlJtF.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1132

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\txDCmPlJtF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB074.tmp"
3⤵
- Creates scheduled task(s)
PID:1152

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1052

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:732

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4944

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:3532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB074.tmp
Filesize
1KB

MD5
8fd90afab8982e2a37afcc4fbe1f1c6a

SHA1
a01744c2cf1a7cbd887cd43a649b8dd8242e020b

SHA256
06fba3a38e3b8ca1a12bbc45c85f7fe5ebd4ecffeb1d3012f186caf52ff888ab

SHA512
ce902d6a3e87bfece559b49f8068d4ccd73b7bc0fbc9414172171215b28f9b28d697dd162fccae9d08681fdb76a1fe52b1bfd9af73ba7d7ee2dd49723ae90c49

Download Submit
memory/8-170-0x00000000077E0000-0x0000000007948000-memory.dmp

Filesize
1.4MB

Download
memory/8-168-0x00000000077E0000-0x0000000007948000-memory.dmp

Filesize
1.4MB

Download
memory/8-150-0x0000000002980000-0x0000000002A95000-memory.dmp

Filesize
1.1MB

Download
memory/732-157-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/732-149-0x0000000000C00000-0x0000000000C14000-memory.dmp

Filesize
80KB

Download
memory/732-146-0x00000000010A0000-0x00000000013EA000-memory.dmp

Filesize
3.3MB

Download
memory/732-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/732-142-0x0000000000000000-mapping.dmp

Download
memory/1052-140-0x0000000000000000-mapping.dmp

Download
memory/1132-151-0x00000000075B0000-0x00000000075E2000-memory.dmp

Filesize
200KB

Download
memory/1132-148-0x00000000063F0000-0x000000000640E000-memory.dmp

Filesize
120KB

Download
memory/1132-139-0x0000000004E20000-0x0000000004E56000-memory.dmp

Filesize
216KB

Download
memory/1132-166-0x0000000007A10000-0x0000000007A18000-memory.dmp

Filesize
32KB

Download
memory/1132-144-0x0000000005310000-0x0000000005332000-memory.dmp

Filesize
136KB

Download
memory/1132-145-0x0000000005CF0000-0x0000000005D56000-memory.dmp

Filesize
408KB

Download
memory/1132-136-0x0000000000000000-mapping.dmp

Download
memory/1132-158-0x0000000007760000-0x000000000776A000-memory.dmp

Filesize
40KB

Download
memory/1132-165-0x0000000007A30000-0x0000000007A4A000-memory.dmp

Filesize
104KB

Download
memory/1132-164-0x0000000007920000-0x000000000792E000-memory.dmp

Filesize
56KB

Download
memory/1132-159-0x0000000007970000-0x0000000007A06000-memory.dmp

Filesize
600KB

Download
memory/1132-152-0x00000000707A0000-0x00000000707EC000-memory.dmp

Filesize
304KB

Download
memory/1132-153-0x00000000069B0000-0x00000000069CE000-memory.dmp

Filesize
120KB

Download
memory/1132-154-0x0000000007D40000-0x00000000083BA000-memory.dmp

Filesize
6.5MB

Download
memory/1132-155-0x00000000076F0000-0x000000000770A000-memory.dmp

Filesize
104KB

Download
memory/1132-141-0x0000000005540000-0x0000000005B68000-memory.dmp

Filesize
6.2MB

Download
memory/1144-133-0x0000000005720000-0x000000000572A000-memory.dmp

Filesize
40KB

Download
memory/1144-135-0x000000000B890000-0x000000000B8F6000-memory.dmp

Filesize
408KB

Download
memory/1144-130-0x0000000000B20000-0x0000000000BD6000-memory.dmp

Filesize
728KB

Download
memory/1144-131-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/1144-132-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download
memory/1144-134-0x000000000B440000-0x000000000B4DC000-memory.dmp

Filesize
624KB

Download
memory/1152-137-0x0000000000000000-mapping.dmp

Download
memory/3532-160-0x0000000000000000-mapping.dmp

Download
memory/4944-163-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4944-161-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/4944-167-0x0000000000B20000-0x0000000000BB3000-memory.dmp

Filesize
588KB

Download
memory/4944-156-0x0000000000000000-mapping.dmp

Download
memory/4944-169-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4944-162-0x0000000000580000-0x000000000058E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads