formbook | ecc540938addc1a440ef6ceb7714a0b45153c04c28df4395e3de18181439341a

General

Target

Shipping documents PDF.exe
Size

831KB
MD5

81b0bdef857aa70ba8bfe0cb6d02f727
SHA1

328ce667e6d7fff59c3f27c0fcda338159c37c6f
SHA256

ecc540938addc1a440ef6ceb7714a0b45153c04c28df4395e3de18181439341a
SHA512

2b9c6596589265ed4a849d14e10cebff7fdac9a9a0bf7b4a6e33b41b38151a6f63aeb78b4c69e74b6a90be07c470bb86d8da2db988e2863f778780e4c07e238b

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://w��5 �@q[*��S=��m

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/412-120-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/412-121-0x000000000041EAC0-mapping.dmp	formbook
behavioral2/memory/632-128-0x0000000002D50000-0x0000000002D7E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.exehelp.exe

description	pid	process	target process
PID 4648 set thread context of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 412 set thread context of 3048	412	Shipping documents PDF.exe	Explorer.EXE
PID 632 set thread context of 3048	632	help.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

4184 schtasks.exe

pid	process
4184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.exehelp.exe

pid	process
4648	Shipping documents PDF.exe
4648	Shipping documents PDF.exe
4648	Shipping documents PDF.exe
4648	Shipping documents PDF.exe
412	Shipping documents PDF.exe
412	Shipping documents PDF.exe
412	Shipping documents PDF.exe
412	Shipping documents PDF.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe
632	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Shipping documents PDF.exehelp.exe

pid process

412 Shipping documents PDF.exe
412 Shipping documents PDF.exe
412 Shipping documents PDF.exe
632 help.exe
632 help.exe

pid	process
412	Shipping documents PDF.exe
412	Shipping documents PDF.exe
412	Shipping documents PDF.exe
632	help.exe
632	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Shipping documents PDF.exeShipping documents PDF.exehelp.exe

description	pid	process
Token: SeDebugPrivilege	4648	Shipping documents PDF.exe
Token: SeDebugPrivilege	412	Shipping documents PDF.exe
Token: SeDebugPrivilege	632	help.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Shipping documents PDF.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 4648 wrote to memory of 4184	4648	Shipping documents PDF.exe	schtasks.exe
PID 4648 wrote to memory of 4184	4648	Shipping documents PDF.exe	schtasks.exe
PID 4648 wrote to memory of 4184	4648	Shipping documents PDF.exe	schtasks.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 4648 wrote to memory of 412	4648	Shipping documents PDF.exe	Shipping documents PDF.exe
PID 3048 wrote to memory of 632	3048	Explorer.EXE	help.exe
PID 3048 wrote to memory of 632	3048	Explorer.EXE	help.exe
PID 3048 wrote to memory of 632	3048	Explorer.EXE	help.exe
PID 632 wrote to memory of 1012	632	help.exe	cmd.exe
PID 632 wrote to memory of 1012	632	help.exe	cmd.exe
PID 632 wrote to memory of 1012	632	help.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3048

C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4648

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tFqKFDvgHq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E23.tmp"
3⤵
- Creates scheduled task(s)
PID:4184

C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:412

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:668

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:632

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping documents PDF.exe"
3⤵
PID:1012

C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
1⤵
PID:3364

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1E23.tmp
MD5
38ed44b24d8c84611abd1eb74cfa976f

SHA1
1eede321a8983ca9e7e635c0867c1e4e9c47230e

SHA256
ae745b46969488f1f889c5b513920d68d601711a71773b3fba6c5c1bbe1d9274

SHA512
2a51da8cc9cf68980364332790a571085bd84b56ebe4e53d4fda72ce401253efa2413e3ef177bb1865ee8846c18177bf17395a46adf38d35645ef5da0819fa34

Download Submit
memory/412-120-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/412-121-0x000000000041EAC0-mapping.dmp

Download
memory/412-122-0x00000000018A0000-0x0000000001BC0000-memory.dmp

Filesize
3.1MB

Download
memory/412-123-0x0000000001860000-0x0000000001874000-memory.dmp

Filesize
80KB

Download
memory/632-125-0x0000000000000000-mapping.dmp

Download
memory/632-130-0x0000000003350000-0x00000000033E3000-memory.dmp

Filesize
588KB

Download
memory/632-128-0x0000000002D50000-0x0000000002D7E000-memory.dmp

Filesize
184KB

Download
memory/632-129-0x0000000003450000-0x0000000003770000-memory.dmp

Filesize
3.1MB

Download
memory/632-127-0x0000000000920000-0x0000000000927000-memory.dmp

Filesize
28KB

Download
memory/1012-126-0x0000000000000000-mapping.dmp

Download
memory/3048-124-0x00000000051C0000-0x0000000005327000-memory.dmp

Filesize
1.4MB

Download
memory/3048-131-0x0000000005330000-0x0000000005484000-memory.dmp

Filesize
1.3MB

Download
memory/3364-115-0x00000000016B0000-0x00000000016B2000-memory.dmp

Filesize
8KB

Download
memory/4184-118-0x0000000000000000-mapping.dmp

Download
memory/4648-114-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/4648-117-0x000000007EDA0000-0x000000007EDA1000-memory.dmp

Filesize
4KB

Download
memory/4648-116-0x0000000002541000-0x0000000002542000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads