formbook | daf2171fbf6da5a14b9ac720e3f6a1f75d8d7c1d3e3be02c308ae4faa854eb65

General

Target

09021.exe
Size

592KB
MD5

2536c125edc35ac5061b596308ff8dcd
SHA1

d0506e1bcdb5c8a3714ccb0fa6603173ade0baf7
SHA256

d9cc0ba64d20a3a60f1580c74ff1269f5b545a0abf23362cbc678b12057a6cf3
SHA512

f2e22c98a7a1986178413aa7661707973b6357fe3c2576f12e7b0a4817693f559a0aa6edae364b7c94875058d1e2dc91efeb4d2d05a826a060fa21cf14918521

Score

10^/10

formbook o4ms rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o4ms

C2

http://www.nocodehost.com/o4ms/

Decoy

fishingboatpub.com

trebor72.com

qualitycleanaustralia.com

amphilykenyx.com

jayte90.net

alveegrace.com

le-fleursoleil.com

volumoffer.com

businessbookwriters.com

alpin-art.com

firsttastetogo.com

catofc.com

ref-290.com

sbo2008.com

fortlauderdaleelevators.com

shanghaiyalian.com

majestybags.com

afcerd.com

myceliated.com

ls0a.com

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: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1492-67-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1492-68-0x000000000041EAB0-mapping.dmp	formbook
behavioral1/memory/1744-76-0x00000000000C0000-0x00000000000EE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1704 cmd.exe

pid	process
1704	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

09021.exe09021.execontrol.exe

description	pid	process	target process
PID 756 set thread context of 1492	756	09021.exe	09021.exe
PID 1492 set thread context of 1208	1492	09021.exe	Explorer.EXE
PID 1744 set thread context of 1208	1744	control.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

1388 schtasks.exe

pid	process
1388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

09021.exe09021.execontrol.exe

pid	process
756	09021.exe
756	09021.exe
1492	09021.exe
1492	09021.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe
1744	control.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

09021.execontrol.exe

pid process

1492 09021.exe
1492 09021.exe
1492 09021.exe
1744 control.exe
1744 control.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

09021.exe09021.execontrol.exe

description pid process

Token: SeDebugPrivilege 756 09021.exe
Token: SeDebugPrivilege 1492 09021.exe
Token: SeDebugPrivilege 1744 control.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE

pid	process
1492	09021.exe
1492	09021.exe
1492	09021.exe
1744	control.exe
1744	control.exe

description	pid	process
Token: SeDebugPrivilege	756	09021.exe
Token: SeDebugPrivilege	1492	09021.exe
Token: SeDebugPrivilege	1744	control.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

09021.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 756 wrote to memory of 1388	756	09021.exe	schtasks.exe
PID 756 wrote to memory of 1388	756	09021.exe	schtasks.exe
PID 756 wrote to memory of 1388	756	09021.exe	schtasks.exe
PID 756 wrote to memory of 1388	756	09021.exe	schtasks.exe
PID 756 wrote to memory of 1552	756	09021.exe	09021.exe
PID 756 wrote to memory of 1552	756	09021.exe	09021.exe
PID 756 wrote to memory of 1552	756	09021.exe	09021.exe
PID 756 wrote to memory of 1552	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 756 wrote to memory of 1492	756	09021.exe	09021.exe
PID 1208 wrote to memory of 1744	1208	Explorer.EXE	control.exe
PID 1208 wrote to memory of 1744	1208	Explorer.EXE	control.exe
PID 1208 wrote to memory of 1744	1208	Explorer.EXE	control.exe
PID 1208 wrote to memory of 1744	1208	Explorer.EXE	control.exe
PID 1744 wrote to memory of 1704	1744	control.exe	cmd.exe
PID 1744 wrote to memory of 1704	1744	control.exe	cmd.exe
PID 1744 wrote to memory of 1704	1744	control.exe	cmd.exe
PID 1744 wrote to memory of 1704	1744	control.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:1208

C:\Users\Admin\AppData\Local\Temp\09021.exe
"C:\Users\Admin\AppData\Local\Temp\09021.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QPfUom" /XML "C:\Users\Admin\AppData\Local\Temp\tmp361C.tmp"
3⤵
- Creates scheduled task(s)
PID:1388

C:\Users\Admin\AppData\Local\Temp\09021.exe
"C:\Users\Admin\AppData\Local\Temp\09021.exe"
3⤵
PID:1552

C:\Users\Admin\AppData\Local\Temp\09021.exe
"C:\Users\Admin\AppData\Local\Temp\09021.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1492

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\09021.exe"
3⤵
- Deletes itself
PID:1704

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

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Downloads

memory/756-60-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/756-62-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/756-63-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/756-64-0x0000000005470000-0x00000000054D0000-memory.dmp

Filesize
384KB

Download
memory/756-65-0x0000000000740000-0x0000000000771000-memory.dmp

Filesize
196KB

Download
memory/1208-79-0x0000000007FB0000-0x00000000080FB000-memory.dmp

Filesize
1.3MB

Download
memory/1208-71-0x0000000004DE0000-0x0000000004ED4000-memory.dmp

Filesize
976KB

Download
memory/1388-66-0x0000000000000000-mapping.dmp

Download
memory/1492-70-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/1492-69-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/1492-68-0x000000000041EAB0-mapping.dmp

Download
memory/1492-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1704-74-0x0000000000000000-mapping.dmp

Download
memory/1744-72-0x0000000000000000-mapping.dmp

Download
memory/1744-73-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1744-75-0x00000000001D0000-0x00000000001EF000-memory.dmp

Filesize
124KB

Download
memory/1744-76-0x00000000000C0000-0x00000000000EE000-memory.dmp

Filesize
184KB

Download
memory/1744-77-0x0000000001E20000-0x0000000002123000-memory.dmp

Filesize
3.0MB

Download
memory/1744-78-0x0000000002130000-0x00000000021C3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads