formbook | 092136c57be5920feea805d61d41b309ba138c209b8e22e7f3edc7c5fd2c3422

General

Target

PO_0008610326.exe
Size

514KB
MD5

fb6533a557c91fe2666ec0c83c8d2222
SHA1

aafc569c743b5ceff8c83483516deb8b5a6661ab
SHA256

092136c57be5920feea805d61d41b309ba138c209b8e22e7f3edc7c5fd2c3422
SHA512

ec80fb0daee225678319dd180efa8681b2885e3a94ab8173bfee08d813a0a6b8c43e6399c538cf55d44328ee4391e9d23c6483cc21b67bbdd5902870e9e2c53d

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/680-57-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/680-58-0x000000000041F200-mapping.dmp	formbook
behavioral1/memory/544-66-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

924 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

PO_0008610326.exe

pid process

1292 PO_0008610326.exe

pid	process
924	cmd.exe

pid	process
1292	PO_0008610326.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO_0008610326.exePO_0008610326.exeipconfig.exe

description	pid	process	target process
PID 1292 set thread context of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 680 set thread context of 1384	680	PO_0008610326.exe	Explorer.EXE
PID 544 set thread context of 1384	544	ipconfig.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:

ipconfig.exe

pid process

544 ipconfig.exe

pid	process
544	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

PO_0008610326.exeipconfig.exe

pid	process
680	PO_0008610326.exe
680	PO_0008610326.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe
544	ipconfig.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1384 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

PO_0008610326.exeipconfig.exe

pid process

680 PO_0008610326.exe
680 PO_0008610326.exe
680 PO_0008610326.exe
544 ipconfig.exe
544 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_0008610326.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 680 PO_0008610326.exe
Token: SeDebugPrivilege 544 ipconfig.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1384 Explorer.EXE
1384 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1384 Explorer.EXE
1384 Explorer.EXE

pid	process
1384	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	680	PO_0008610326.exe
Token: SeDebugPrivilege	544	ipconfig.exe

pid	process
1384	Explorer.EXE
1384	Explorer.EXE

pid	process
1384	Explorer.EXE
1384	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO_0008610326.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1292 wrote to memory of 680	1292	PO_0008610326.exe	PO_0008610326.exe
PID 1384 wrote to memory of 544	1384	Explorer.EXE	ipconfig.exe
PID 1384 wrote to memory of 544	1384	Explorer.EXE	ipconfig.exe
PID 1384 wrote to memory of 544	1384	Explorer.EXE	ipconfig.exe
PID 1384 wrote to memory of 544	1384	Explorer.EXE	ipconfig.exe
PID 544 wrote to memory of 924	544	ipconfig.exe	cmd.exe
PID 544 wrote to memory of 924	544	ipconfig.exe	cmd.exe
PID 544 wrote to memory of 924	544	ipconfig.exe	cmd.exe
PID 544 wrote to memory of 924	544	ipconfig.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:1384

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:1292

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:680

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:544

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PO_0008610326.exe"
3⤵
- Deletes itself
PID:924

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\nsnB6C2.tmp\kzocxcfbd.dll
MD5
16a41e7c023ed6a5f5ae9610f172246c

SHA1
6c0ccd3c826b96d03926f622c8dffacf41809014

SHA256
d4c5b2159ab28a367d3be3881c4df3f33b58121c9a95b69720c8978b1a98eec0

SHA512
7cf712f4552830cc71d863b1307bbfb51a5db334aa13e2b17c2f891afaa52effea57d7616fe3c304e4d52349db05e8774959ff3408fba2bff1a097661a972276

Download Submit
memory/544-63-0x0000000000000000-mapping.dmp

Download
memory/544-69-0x0000000001DC0000-0x0000000001E54000-memory.dmp

Filesize
592KB

Download
memory/544-67-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/544-66-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/544-65-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/680-58-0x000000000041F200-mapping.dmp

Download
memory/680-61-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/680-60-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/680-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/924-68-0x0000000000000000-mapping.dmp

Download
memory/1292-55-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1384-62-0x0000000007150000-0x00000000072F7000-memory.dmp

Filesize
1.7MB

Download
memory/1384-70-0x0000000004D60000-0x0000000004E43000-memory.dmp

Filesize
908KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads