formbook | d39b886f919d1f1b82ac5c858087e832040059cbafdbc43b508f48be1f42d5d2

General

Target

PO_0008610326.exe
Size

755KB
MD5

ea4da4828c2bd7887deed263748e95c0
SHA1

6d6c0faa95ab5678974d12e5c3d8331ce03fd5a1
SHA256

74bbb53303ff65936cd42637f26e05743cdd2252a1ce4462a51368249743fe1f
SHA512

c0a5e0d082889193a9babcd6c26dfbcf6ea8742a3f77975ad32948795e566a0c659ba47fb8bd825768595fd028006335838ae4d4fd8b519719cf9c88a7958896

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/1204-57-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1204-58-0x000000000041F200-mapping.dmp	formbook
behavioral1/memory/1204-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1736-68-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1524 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

PO_0008610326.exe

pid process

1364 PO_0008610326.exe

pid	process
1524	cmd.exe

pid	process
1364	PO_0008610326.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO_0008610326.exePO_0008610326.exeNETSTAT.EXE

description	pid	process	target process
PID 1364 set thread context of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1204 set thread context of 1284	1204	PO_0008610326.exe	Explorer.EXE
PID 1204 set thread context of 1284	1204	PO_0008610326.exe	Explorer.EXE
PID 1736 set thread context of 1284	1736	NETSTAT.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
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

1736 NETSTAT.EXE

pid	process
1736	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

PO_0008610326.exeNETSTAT.EXE

pid	process
1204	PO_0008610326.exe
1204	PO_0008610326.exe
1204	PO_0008610326.exe
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE
1736	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

PO_0008610326.exeNETSTAT.EXE

pid process

1204 PO_0008610326.exe
1204 PO_0008610326.exe
1204 PO_0008610326.exe
1204 PO_0008610326.exe
1736 NETSTAT.EXE
1736 NETSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_0008610326.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 1204 PO_0008610326.exe
Token: SeDebugPrivilege 1736 NETSTAT.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE

pid	process
1284	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1204	PO_0008610326.exe
Token: SeDebugPrivilege	1736	NETSTAT.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO_0008610326.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1364 wrote to memory of 1204	1364	PO_0008610326.exe	PO_0008610326.exe
PID 1284 wrote to memory of 1736	1284	Explorer.EXE	NETSTAT.EXE
PID 1284 wrote to memory of 1736	1284	Explorer.EXE	NETSTAT.EXE
PID 1284 wrote to memory of 1736	1284	Explorer.EXE	NETSTAT.EXE
PID 1284 wrote to memory of 1736	1284	Explorer.EXE	NETSTAT.EXE
PID 1736 wrote to memory of 1524	1736	NETSTAT.EXE	cmd.exe
PID 1736 wrote to memory of 1524	1736	NETSTAT.EXE	cmd.exe
PID 1736 wrote to memory of 1524	1736	NETSTAT.EXE	cmd.exe
PID 1736 wrote to memory of 1524	1736	NETSTAT.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:1284

C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe
"C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1364

C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe
"C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1204

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe"
3⤵
- Deletes itself
PID:1524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsiDE8D.tmp\mmtsb.dll
MD5
80c9c617eff8c1b8aaebd004d0e10f20

SHA1
bf3eb6c247789b537c43ef0741f4028349f9cfed

SHA256
298953ce3319cf1b1cfd7c9e74f882f72d242e6f8acdb52ca3a16a3fa67ba317

SHA512
10e27801b66fbf8fa47f4613d19262758e6ae7d230314fa43ccd26db35fac18765f1db281b60006b22e5fd984660ecb3a2f5d5bd3b826cd5a892c0fde55bf446

Download Submit
memory/1204-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1204-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1204-58-0x000000000041F200-mapping.dmp

Download
memory/1204-61-0x00000000002C0000-0x00000000002D5000-memory.dmp

Filesize
84KB

Download
memory/1204-60-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1204-64-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/1284-65-0x0000000007120000-0x000000000722E000-memory.dmp

Filesize
1.1MB

Download
memory/1284-62-0x0000000006B70000-0x0000000006CE6000-memory.dmp

Filesize
1.5MB

Download
memory/1284-72-0x0000000007C00000-0x0000000007D16000-memory.dmp

Filesize
1.1MB

Download
memory/1364-55-0x0000000076231000-0x0000000076233000-memory.dmp

Filesize
8KB

Download
memory/1524-69-0x0000000000000000-mapping.dmp

Download
memory/1736-66-0x0000000000000000-mapping.dmp

Download
memory/1736-67-0x0000000000FE0000-0x0000000000FE9000-memory.dmp

Filesize
36KB

Download
memory/1736-68-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/1736-70-0x0000000000B60000-0x0000000000E63000-memory.dmp

Filesize
3.0MB

Download
memory/1736-71-0x0000000000AC0000-0x0000000000B54000-memory.dmp

Filesize
592KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads