formbook | 60e3ebeb0d350be55991be238d65e914655754e4e05024ebe02774c70a83d800

General

Target

Commander une image.exe
Size

419KB
MD5

f5a09e2bec2448ffe0f1121af91411ab
SHA1

b81e12b89a1d72c90bfe6b5fe95b4b053e0207e6
SHA256

90bbdf4e97b2f992340311300e29ce5dd0e8112c6dc681e3354855097eb83ad2
SHA512

927216a2a0e9bc9141a0e9d32164b5e85708902fa8d22fe328d4ccecaf7f5bc562c875c330e3fedab8e8ee40d4612bd2d1ad57df2daeb83c0d856ed8bbefbfb4

Score

10^/10

formbook dn7r rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

C2

http://www.yourherogarden.net/dn7r/

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1160-57-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1160-58-0x000000000041F200-mapping.dmp	formbook
behavioral1/memory/1160-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/580-69-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

552 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

Commander une image.exe

pid process

664 Commander une image.exe

pid	process
552	cmd.exe

pid	process
664	Commander une image.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Commander une image.exeCommander une image.exechkdsk.exe

description	pid	process	target process
PID 664 set thread context of 1160	664	Commander une image.exe	Commander une image.exe
PID 1160 set thread context of 1212	1160	Commander une image.exe	Explorer.EXE
PID 1160 set thread context of 1212	1160	Commander une image.exe	Explorer.EXE
PID 580 set thread context of 1212	580	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
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

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

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Commander une image.exechkdsk.exe

pid	process
1160	Commander une image.exe
1160	Commander une image.exe
1160	Commander une image.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe
580	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Commander une image.exechkdsk.exe

pid process

1160 Commander une image.exe
1160 Commander une image.exe
1160 Commander une image.exe
1160 Commander une image.exe
580 chkdsk.exe
580 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Commander une image.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1160 Commander une image.exe
Token: SeDebugPrivilege 580 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE

pid	process
1212	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1160	Commander une image.exe
Token: SeDebugPrivilege	580	chkdsk.exe

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Commander une image.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 664 wrote to memory of 1160	664	Commander une image.exe	Commander une image.exe
PID 1212 wrote to memory of 580	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 580	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 580	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 580	1212	Explorer.EXE	chkdsk.exe
PID 580 wrote to memory of 552	580	chkdsk.exe	cmd.exe
PID 580 wrote to memory of 552	580	chkdsk.exe	cmd.exe
PID 580 wrote to memory of 552	580	chkdsk.exe	cmd.exe
PID 580 wrote to memory of 552	580	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\Commander une image.exe
"C:\Users\Admin\AppData\Local\Temp\Commander une image.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:664

C:\Users\Admin\AppData\Local\Temp\Commander une image.exe
"C:\Users\Admin\AppData\Local\Temp\Commander une image.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1160

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:580

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Commander une image.exe"
3⤵
- Deletes itself
PID:552

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

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

\Users\Admin\AppData\Local\Temp\nsnCB2C.tmp\xkaja.dll
MD5
e5ff8d9cb45aeff5b05a5a1e54336585

SHA1
a2d037bd24fc22f65ab3816ed135f301bd96f051

SHA256
54df2592ba748fedb122fc6c4c18172bec40568fc057b1832cdadc808ce22dcc

SHA512
e2a0aa236957ca5823bcc9f091a263970621715f85f89bfb78adc5333cafe912db1e51bf00e8e592f08089e91cfe62a71070745f5ed131c1c0c025211c667582

Download Submit
memory/552-67-0x0000000000000000-mapping.dmp

Download
memory/580-66-0x0000000000000000-mapping.dmp

Download
memory/580-71-0x0000000000860000-0x00000000008F4000-memory.dmp

Filesize
592KB

Download
memory/580-70-0x0000000002040000-0x0000000002343000-memory.dmp

Filesize
3.0MB

Download
memory/580-68-0x0000000000910000-0x0000000000917000-memory.dmp

Filesize
28KB

Download
memory/580-69-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/664-55-0x0000000075D01000-0x0000000075D03000-memory.dmp

Filesize
8KB

Download
memory/1160-61-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/1160-64-0x00000000004C0000-0x00000000004D5000-memory.dmp

Filesize
84KB

Download
memory/1160-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1160-60-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1160-58-0x000000000041F200-mapping.dmp

Download
memory/1160-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1212-65-0x0000000006340000-0x000000000640D000-memory.dmp

Filesize
820KB

Download
memory/1212-62-0x0000000007F90000-0x0000000008134000-memory.dmp

Filesize
1.6MB

Download
memory/1212-72-0x0000000007980000-0x0000000007AF2000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads