formbook | 9b678f11bc59926928b5b63dc25023caa20f4b1c7c9d0831aa70272d2404b681

General

Target

Purchase Order.exe
Size

381KB
MD5

8d3e4ec645035a23fa7ab2d680c32dc7
SHA1

c0eb8698c0117052af566f1128c468a06e1c0161
SHA256

b5806010e9548290a677944c53947165287883961f63490ce495203e35521ffe
SHA512

4e777d18685052678060eeb8a5621b6e7008be794ec410cca2401a76c384097be5fb14071637c6ebba258d65dad97be69ecdb10c2cfad832d4f0f5760e108d01

Score

10^/10

formbook dn7r rat spyware stealer 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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1064-56-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1064-57-0x000000000041F200-mapping.dmp	formbook
behavioral1/memory/988-64-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1032 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

Purchase Order.exe

pid process

680 Purchase Order.exe

pid	process
1032	cmd.exe

pid	process
680	Purchase Order.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Purchase Order.exePurchase Order.exeNETSTAT.EXE

description	pid	process	target process
PID 680 set thread context of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 1064 set thread context of 1216	1064	Purchase Order.exe	Explorer.EXE
PID 988 set thread context of 1216	988	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

988 NETSTAT.EXE

pid	process
988	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Purchase Order.exeNETSTAT.EXE

pid	process
1064	Purchase Order.exe
1064	Purchase Order.exe
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE
988	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1216 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Purchase Order.exeNETSTAT.EXE

pid process

1064 Purchase Order.exe
1064 Purchase Order.exe
1064 Purchase Order.exe
988 NETSTAT.EXE
988 NETSTAT.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase Order.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 1064 Purchase Order.exe
Token: SeDebugPrivilege 988 NETSTAT.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1216 Explorer.EXE
1216 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1216 Explorer.EXE
1216 Explorer.EXE

pid	process
1216	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1064	Purchase Order.exe
Token: SeDebugPrivilege	988	NETSTAT.EXE

pid	process
1216	Explorer.EXE
1216	Explorer.EXE

pid	process
1216	Explorer.EXE
1216	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Purchase Order.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 680 wrote to memory of 1064	680	Purchase Order.exe	Purchase Order.exe
PID 1216 wrote to memory of 988	1216	Explorer.EXE	NETSTAT.EXE
PID 1216 wrote to memory of 988	1216	Explorer.EXE	NETSTAT.EXE
PID 1216 wrote to memory of 988	1216	Explorer.EXE	NETSTAT.EXE
PID 1216 wrote to memory of 988	1216	Explorer.EXE	NETSTAT.EXE
PID 988 wrote to memory of 1032	988	NETSTAT.EXE	cmd.exe
PID 988 wrote to memory of 1032	988	NETSTAT.EXE	cmd.exe
PID 988 wrote to memory of 1032	988	NETSTAT.EXE	cmd.exe
PID 988 wrote to memory of 1032	988	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:1216

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:680

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1064

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1548

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1540

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:552

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1536

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1848

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:832

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:936

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1876

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1352

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1104

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1840

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:456

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:112

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2044

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:396

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:988

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
3⤵
- Deletes itself
PID:1032

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\nstFE2E.tmp\tywjgblojsy.dll
MD5
13befe3a2f68f89c1017eeab3edd1732

SHA1
64bcba004f96d231c93654c64dc5b0d660ff7cf3

SHA256
058b1ef14f0a70351388bd232e5cc60deca90f4e17c30877098d168b178a9c74

SHA512
9926c0b270dc425d2be96973f6fc4cb2cf193e801136e6593438b04699d136ce9879dcdd8e707609412ed69dfbe1d5217ad6b1ab42b1be9ed99fe3b503b5e042

Download Submit
memory/680-54-0x0000000074C71000-0x0000000074C73000-memory.dmp

Filesize
8KB

Download
memory/988-63-0x0000000000B00000-0x0000000000B09000-memory.dmp

Filesize
36KB

Download
memory/988-67-0x0000000001F10000-0x0000000001FA4000-memory.dmp

Filesize
592KB

Download
memory/988-65-0x00000000021E0000-0x00000000024E3000-memory.dmp

Filesize
3.0MB

Download
memory/988-64-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/988-62-0x0000000000000000-mapping.dmp

Download
memory/1032-66-0x0000000000000000-mapping.dmp

Download
memory/1064-57-0x000000000041F200-mapping.dmp

Download
memory/1064-59-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1064-60-0x0000000000450000-0x0000000000465000-memory.dmp

Filesize
84KB

Download
memory/1064-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1216-61-0x0000000004040000-0x000000000410A000-memory.dmp

Filesize
808KB

Download
memory/1216-68-0x0000000004DB0000-0x0000000004ED5000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads