formbook | 712d9e2373914cd9231c6c55a5d919efa6df53194b2c06b03695501dde071760

General

Target

tmp.exe
Size

536KB
MD5

9e70e8a4f264cc5ef9c7cc2c0977ce7f
SHA1

2fdade7cace270aacb774b1079c99f80110da9e1
SHA256

712d9e2373914cd9231c6c55a5d919efa6df53194b2c06b03695501dde071760
SHA512

278b3662e35ee839e197c218e22b32e3f9885b53004dbde163d3e86e91a6e6abbeff9afc4e444181c16b0e75d2b274639870bcafb7b43a9568c88116be66d0da

Score

10^/10

formbook m56u rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m56u

Decoy

tercantiq.com

fortvillechicken.net

spiritsandtheb.com

alliant-inc.biz

yh1902.com

xiaodewenhua.net

cityjobs.xyz

seniorlivingwisconsin.com

piadagrilla.com

truistfinancebank.online

nft-fashionlover.com

hangmandownload.com

chun888.xyz

lemonviral.com

getagrip.network

daniellepinnock.info

chiswickstudios.com

essayservicee.com

bharatpragatifoundation.com

800vn.com

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/952-64-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/952-65-0x000000000041F140-mapping.dmp	formbook
behavioral1/memory/952-68-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2044-75-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook
behavioral1/memory/2044-78-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1180 cmd.exe

pid	process
1180	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exewlanext.exe

description	pid	process	target process
PID 1792 set thread context of 952	1792	tmp.exe	tmp.exe
PID 952 set thread context of 1252	952	tmp.exe	Explorer.EXE
PID 2044 set thread context of 1252	2044	wlanext.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

tmp.exewlanext.exe

pid	process
952	tmp.exe
952	tmp.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe
2044	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.exewlanext.exe

pid process

952 tmp.exe
952 tmp.exe
952 tmp.exe
2044 wlanext.exe
2044 wlanext.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exewlanext.exe

description pid process

Token: SeDebugPrivilege 952 tmp.exe
Token: SeDebugPrivilege 2044 wlanext.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	952	tmp.exe
Token: SeDebugPrivilege	2044	wlanext.exe

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1792 wrote to memory of 952	1792	tmp.exe	tmp.exe
PID 1252 wrote to memory of 2044	1252	Explorer.EXE	wlanext.exe
PID 1252 wrote to memory of 2044	1252	Explorer.EXE	wlanext.exe
PID 1252 wrote to memory of 2044	1252	Explorer.EXE	wlanext.exe
PID 1252 wrote to memory of 2044	1252	Explorer.EXE	wlanext.exe
PID 2044 wrote to memory of 1180	2044	wlanext.exe	cmd.exe
PID 2044 wrote to memory of 1180	2044	wlanext.exe	cmd.exe
PID 2044 wrote to memory of 1180	2044	wlanext.exe	cmd.exe
PID 2044 wrote to memory of 1180	2044	wlanext.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:1252

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:1792

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:952

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Deletes itself
PID:1180

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/952-67-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/952-69-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/952-68-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/952-65-0x000000000041F140-mapping.dmp

Download
memory/1180-72-0x0000000000000000-mapping.dmp

Download
memory/1252-79-0x0000000005F90000-0x000000000608F000-memory.dmp

Filesize
1020KB

Download
memory/1252-77-0x0000000005F90000-0x000000000608F000-memory.dmp

Filesize
1020KB

Download
memory/1252-70-0x0000000004360000-0x0000000004439000-memory.dmp

Filesize
868KB

Download
memory/1792-60-0x0000000000E50000-0x0000000000E84000-memory.dmp

Filesize
208KB

Download
memory/1792-54-0x0000000000FB0000-0x000000000103A000-memory.dmp

Filesize
552KB

Download
memory/1792-59-0x0000000004710000-0x000000000477E000-memory.dmp

Filesize
440KB

Download
memory/1792-58-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/1792-57-0x0000000006FF5000-0x0000000007006000-memory.dmp

Filesize
68KB

Download
memory/1792-56-0x00000000003B0000-0x00000000003C6000-memory.dmp

Filesize
88KB

Download
memory/1792-55-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/2044-71-0x0000000000000000-mapping.dmp

Download
memory/2044-73-0x0000000000BD0000-0x0000000000BE6000-memory.dmp

Filesize
88KB

Download
memory/2044-74-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/2044-75-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2044-76-0x0000000000920000-0x00000000009B3000-memory.dmp

Filesize
588KB

Download
memory/2044-78-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads