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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1880-67-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1880-68-0x000000000041F120-mapping.dmp	formbook
behavioral1/memory/1880-76-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/820-80-0x0000000000110000-0x000000000013F000-memory.dmp	formbook
behavioral1/memory/820-84-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Confirmaci_n de pago.pdf.exeRegSvcs.exerundll32.exe

description	pid	process	target process
PID 1112 set thread context of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1880 set thread context of 1380	1880	RegSvcs.exe	Explorer.EXE
PID 820 set thread context of 1380	820	rundll32.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

944 schtasks.exe

pid	process
944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

Confirmaci_n de pago.pdf.exepowershell.exeRegSvcs.exerundll32.exe

pid	process
1112	Confirmaci_n de pago.pdf.exe
1112	Confirmaci_n de pago.pdf.exe
1668	powershell.exe
1880	RegSvcs.exe
1880	RegSvcs.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe
820	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exerundll32.exe

pid process

1880 RegSvcs.exe
1880 RegSvcs.exe
1880 RegSvcs.exe
820 rundll32.exe
820 rundll32.exe

pid	process
1880	RegSvcs.exe
1880	RegSvcs.exe
1880	RegSvcs.exe
820	rundll32.exe
820	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Confirmaci_n de pago.pdf.exepowershell.exeRegSvcs.exerundll32.exe

description	pid	process
Token: SeDebugPrivilege	1112	Confirmaci_n de pago.pdf.exe
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	1880	RegSvcs.exe
Token: SeDebugPrivilege	820	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

Confirmaci_n de pago.pdf.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1112 wrote to memory of 1668	1112	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1112 wrote to memory of 1668	1112	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1112 wrote to memory of 1668	1112	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1112 wrote to memory of 1668	1112	Confirmaci_n de pago.pdf.exe	powershell.exe
PID 1112 wrote to memory of 944	1112	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1112 wrote to memory of 944	1112	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1112 wrote to memory of 944	1112	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1112 wrote to memory of 944	1112	Confirmaci_n de pago.pdf.exe	schtasks.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1112 wrote to memory of 1880	1112	Confirmaci_n de pago.pdf.exe	RegSvcs.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 1380 wrote to memory of 820	1380	Explorer.EXE	rundll32.exe
PID 820 wrote to memory of 612	820	rundll32.exe	cmd.exe
PID 820 wrote to memory of 612	820	rundll32.exe	cmd.exe
PID 820 wrote to memory of 612	820	rundll32.exe	cmd.exe
PID 820 wrote to memory of 612	820	rundll32.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:1380

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⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112

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:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\txDCmPlJtF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp259B.tmp"
3⤵
- Creates scheduled task(s)
PID:944

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:1880

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:612

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp259B.tmp
Filesize
1KB

MD5
152459be034a5911e4d90c2939606b16

SHA1
c2f1d366e58f380981660607b1ea36d77b1f6a74

SHA256
fb70ea2b2c7a4e47c13341d1d1b743d6a3d1ba8aff0d3a65bc4dbc579670ddcd

SHA512
5dc95a027897d312a770cca96d70831d1e4265736a60b1f9204be45b3f658b65bb7cfa1344afe99450c0babc07ad00b4e871fe5d55d86c5bd4269f540100d55d

Download Submit
memory/612-78-0x0000000000000000-mapping.dmp

Download
memory/820-79-0x0000000000E10000-0x0000000000E1E000-memory.dmp

Filesize
56KB

Download
memory/820-75-0x0000000000000000-mapping.dmp

Download
memory/820-84-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/820-82-0x00000000009E0000-0x0000000000A73000-memory.dmp

Filesize
588KB

Download
memory/820-81-0x0000000002220000-0x0000000002523000-memory.dmp

Filesize
3.0MB

Download
memory/820-80-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/944-60-0x0000000000000000-mapping.dmp

Download
memory/1112-54-0x00000000012C0000-0x0000000001376000-memory.dmp

Filesize
728KB

Download
memory/1112-58-0x0000000005DE0000-0x0000000005E64000-memory.dmp

Filesize
528KB

Download
memory/1112-56-0x0000000000440000-0x0000000000456000-memory.dmp

Filesize
88KB

Download
memory/1112-63-0x0000000005AE0000-0x0000000005B16000-memory.dmp

Filesize
216KB

Download
memory/1112-57-0x0000000000450000-0x000000000045A000-memory.dmp

Filesize
40KB

Download
memory/1112-55-0x0000000075681000-0x0000000075683000-memory.dmp

Filesize
8KB

Download
memory/1380-85-0x0000000004190000-0x0000000004235000-memory.dmp

Filesize
660KB

Download
memory/1380-74-0x0000000007070000-0x00000000071CC000-memory.dmp

Filesize
1.4MB

Download
memory/1380-83-0x0000000004190000-0x0000000004235000-memory.dmp

Filesize
660KB

Download
memory/1668-59-0x0000000000000000-mapping.dmp

Download
memory/1668-69-0x000000006E510000-0x000000006EABB000-memory.dmp

Filesize
5.7MB

Download
memory/1668-71-0x000000006E510000-0x000000006EABB000-memory.dmp

Filesize
5.7MB

Download
memory/1880-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1880-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1880-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1880-68-0x000000000041F120-mapping.dmp

Download
memory/1880-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1880-73-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1880-72-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads