formbook | 2d7051de1420deab48e7d25638ae6c6a72ccc503c4c6d153139feec4861f573f

General

Target

Ordem de compra para julho.pdf.exe
Size

687KB
MD5

01ac3fb5a4476de95369f325ea906ea5
SHA1

e291db506ea6b82f60b1b5e035f764595d6b7f3c
SHA256

b6426721805cf7ba17f04f3ab2540c182758682a0b6397ee277f4f3aa3709bd1
SHA512

548686caf1858bb22aaebee04c0ee0a8fef3d4f4577a6700dbbfe213d34654e621be09927bbddff418c61c33c9380c8a6f92ffe3ae202ab53c149d5f80dd40ca

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/588-67-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/588-68-0x000000000041F120-mapping.dmp	formbook
behavioral1/memory/588-70-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/600-79-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/600-82-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Ordem de compra para julho.pdf.exeRegSvcs.exechkdsk.exe

description	pid	process	target process
PID 1416 set thread context of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 588 set thread context of 1220	588	RegSvcs.exe	Explorer.EXE
PID 600 set thread context of 1220	600	chkdsk.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

1236 schtasks.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

pid	process
1236	schtasks.exe

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

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

RegSvcs.exepowershell.exechkdsk.exe

pid	process
588	RegSvcs.exe
588	RegSvcs.exe
1732	powershell.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe
600	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid process

588 RegSvcs.exe
588 RegSvcs.exe
588 RegSvcs.exe
600 chkdsk.exe
600 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RegSvcs.exepowershell.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 588 RegSvcs.exe
Token: SeDebugPrivilege 1732 powershell.exe
Token: SeDebugPrivilege 600 chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	588	RegSvcs.exe
Token: SeDebugPrivilege	1732	powershell.exe
Token: SeDebugPrivilege	600	chkdsk.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Ordem de compra para julho.pdf.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1416 wrote to memory of 1732	1416	Ordem de compra para julho.pdf.exe	powershell.exe
PID 1416 wrote to memory of 1732	1416	Ordem de compra para julho.pdf.exe	powershell.exe
PID 1416 wrote to memory of 1732	1416	Ordem de compra para julho.pdf.exe	powershell.exe
PID 1416 wrote to memory of 1732	1416	Ordem de compra para julho.pdf.exe	powershell.exe
PID 1416 wrote to memory of 1236	1416	Ordem de compra para julho.pdf.exe	schtasks.exe
PID 1416 wrote to memory of 1236	1416	Ordem de compra para julho.pdf.exe	schtasks.exe
PID 1416 wrote to memory of 1236	1416	Ordem de compra para julho.pdf.exe	schtasks.exe
PID 1416 wrote to memory of 1236	1416	Ordem de compra para julho.pdf.exe	schtasks.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1416 wrote to memory of 588	1416	Ordem de compra para julho.pdf.exe	RegSvcs.exe
PID 1220 wrote to memory of 600	1220	Explorer.EXE	chkdsk.exe
PID 1220 wrote to memory of 600	1220	Explorer.EXE	chkdsk.exe
PID 1220 wrote to memory of 600	1220	Explorer.EXE	chkdsk.exe
PID 1220 wrote to memory of 600	1220	Explorer.EXE	chkdsk.exe
PID 600 wrote to memory of 1488	600	chkdsk.exe	cmd.exe
PID 600 wrote to memory of 1488	600	chkdsk.exe	cmd.exe
PID 600 wrote to memory of 1488	600	chkdsk.exe	cmd.exe
PID 600 wrote to memory of 1488	600	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1220

C:\Users\Admin\AppData\Local\Temp\Ordem de compra para julho.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Ordem de compra para julho.pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JXVNljtiVHwGbZ.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JXVNljtiVHwGbZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp711B.tmp"
3⤵
- Creates scheduled task(s)
PID:1236

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:588

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:600

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1488

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

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp711B.tmp
Filesize
1KB

MD5
aa274cc321ca553f6958976385e9f0a7

SHA1
e9d9401324053a2ba97806e5db5c23b52661653d

SHA256
d01f18622754c7145d0db31695a018217187c59b463da80b5c36bdb687ad1b33

SHA512
6af92d7b06f9a3637b736b33357d02b25a12c16b3533c8ec95fb8edd386fc1e74086eea5a4f6ae050a11eb49cf8430431be686e89168f9962da0c60fedb6f1cc

Download Submit
memory/588-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-73-0x0000000000160000-0x0000000000174000-memory.dmp

Filesize
80KB

Download
memory/588-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-72-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/588-68-0x000000000041F120-mapping.dmp

Download
memory/588-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/600-80-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/600-76-0x0000000000000000-mapping.dmp

Download
memory/600-78-0x00000000006D0000-0x00000000006D7000-memory.dmp

Filesize
28KB

Download
memory/600-79-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/600-81-0x0000000001DB0000-0x0000000001E43000-memory.dmp

Filesize
588KB

Download
memory/600-82-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1220-74-0x0000000004B20000-0x0000000004CBB000-memory.dmp

Filesize
1.6MB

Download
memory/1236-60-0x0000000000000000-mapping.dmp

Download
memory/1416-63-0x0000000004C50000-0x0000000004C84000-memory.dmp

Filesize
208KB

Download
memory/1416-54-0x0000000001030000-0x00000000010E2000-memory.dmp

Filesize
712KB

Download
memory/1416-58-0x0000000005070000-0x00000000050DC000-memory.dmp

Filesize
432KB

Download
memory/1416-57-0x0000000000420000-0x000000000042A000-memory.dmp

Filesize
40KB

Download
memory/1416-56-0x0000000000410000-0x0000000000426000-memory.dmp

Filesize
88KB

Download
memory/1416-55-0x00000000764C1000-0x00000000764C3000-memory.dmp

Filesize
8KB

Download
memory/1488-77-0x0000000000000000-mapping.dmp

Download
memory/1732-71-0x000000006EB10000-0x000000006F0BB000-memory.dmp

Filesize
5.7MB

Download
memory/1732-75-0x000000006EB10000-0x000000006F0BB000-memory.dmp

Filesize
5.7MB

Download
memory/1732-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads