formbook | 79e6aa9fb18847e4c5b5e00dd742b3b00057d20bbede37f1c8740b21666b44e1

General

Target

tmp.exe
Size

538KB
MD5

c0138bfa58d20206600eaf1657f95f75
SHA1

fa232e4df93c81093044ff552381d41ebcc5f443
SHA256

79e6aa9fb18847e4c5b5e00dd742b3b00057d20bbede37f1c8740b21666b44e1
SHA512

082a20109057787fdb3d8bfa5607e379c4d803d862367078e24a40018c3a6ed4fa3c09ce0c95152a169cfa98f2348c47e20af1cbf4b69dd164fcc6b9a80040bd

Score

10^/10

formbook bk19 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bk19

Decoy

parkersuite.com

quanzhujs.com

ofourfuture.com

palazzonutraceuticals.com

xowshfv.top

casinoguide.bet

kangdurian.com

luxurymainewaterfront.com

sdjyyy.com

uglymugvs.com

lawncaregeni.com

simproful.net

upskirts-tube.com

taiylormade.com

okyxx1k4w.digital

shop-marvel.direct

tecdiario.com

click2claim.xyz

2dot2dot.space

gercektarih.online

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/628-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/628-64-0x000000000041F0D0-mapping.dmp	formbook
behavioral1/memory/628-69-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/628-73-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2032-77-0x00000000000F0000-0x000000000011F000-memory.dmp	formbook
behavioral1/memory/2032-81-0x00000000000F0000-0x000000000011F000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1884 cmd.exe

pid	process
1884	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

tmp.exetmp.exemsiexec.exe

description	pid	process	target process
PID 1512 set thread context of 628	1512	tmp.exe	tmp.exe
PID 628 set thread context of 1420	628	tmp.exe	Explorer.EXE
PID 628 set thread context of 1420	628	tmp.exe	Explorer.EXE
PID 2032 set thread context of 1420	2032	msiexec.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

tmp.exemsiexec.exe

pid	process
628	tmp.exe
628	tmp.exe
628	tmp.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe
2032	msiexec.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

tmp.exemsiexec.exe

pid process

628 tmp.exe
628 tmp.exe
628 tmp.exe
628 tmp.exe
2032 msiexec.exe
2032 msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exemsiexec.exe

description pid process

Token: SeDebugPrivilege 628 tmp.exe
Token: SeDebugPrivilege 2032 msiexec.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1420 Explorer.EXE
1420 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1420 Explorer.EXE
1420 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	628	tmp.exe
Token: SeDebugPrivilege	2032	msiexec.exe

pid	process
1420	Explorer.EXE
1420	Explorer.EXE

pid	process
1420	Explorer.EXE
1420	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

tmp.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1512 wrote to memory of 628	1512	tmp.exe	tmp.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 1420 wrote to memory of 2032	1420	Explorer.EXE	msiexec.exe
PID 2032 wrote to memory of 1884	2032	msiexec.exe	cmd.exe
PID 2032 wrote to memory of 1884	2032	msiexec.exe	cmd.exe
PID 2032 wrote to memory of 1884	2032	msiexec.exe	cmd.exe
PID 2032 wrote to memory of 1884	2032	msiexec.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:1420

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1512

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:628

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Deletes itself
PID:1884

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/628-64-0x000000000041F0D0-mapping.dmp

Download
memory/628-73-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/628-70-0x0000000000470000-0x0000000000484000-memory.dmp

Filesize
80KB

Download
memory/628-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/628-67-0x0000000000430000-0x0000000000444000-memory.dmp

Filesize
80KB

Download
memory/628-66-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/628-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/628-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/628-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-68-0x0000000004A60000-0x0000000004B81000-memory.dmp

Filesize
1.1MB

Download
memory/1420-80-0x00000000071E0000-0x0000000007337000-memory.dmp

Filesize
1.3MB

Download
memory/1420-71-0x0000000007030000-0x00000000071D5000-memory.dmp

Filesize
1.6MB

Download
memory/1420-82-0x00000000071E0000-0x0000000007337000-memory.dmp

Filesize
1.3MB

Download
memory/1512-58-0x00000000059F0000-0x0000000005A5C000-memory.dmp

Filesize
432KB

Download
memory/1512-54-0x0000000001120000-0x00000000011AC000-memory.dmp

Filesize
560KB

Download
memory/1512-57-0x0000000000AA0000-0x0000000000AAA000-memory.dmp

Filesize
40KB

Download
memory/1512-56-0x0000000000980000-0x000000000099C000-memory.dmp

Filesize
112KB

Download
memory/1512-55-0x0000000076421000-0x0000000076423000-memory.dmp

Filesize
8KB

Download
memory/1512-59-0x0000000004DD0000-0x0000000004E04000-memory.dmp

Filesize
208KB

Download
memory/1884-75-0x0000000000000000-mapping.dmp

Download
memory/2032-77-0x00000000000F0000-0x000000000011F000-memory.dmp

Filesize
188KB

Download
memory/2032-78-0x00000000021D0000-0x00000000024D3000-memory.dmp

Filesize
3.0MB

Download
memory/2032-79-0x0000000000A90000-0x0000000000B23000-memory.dmp

Filesize
588KB

Download
memory/2032-76-0x0000000000580000-0x0000000000594000-memory.dmp

Filesize
80KB

Download
memory/2032-81-0x00000000000F0000-0x000000000011F000-memory.dmp

Filesize
188KB

Download
memory/2032-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads