formbook | 4388d14cd19cb633714502e52d87743ba879eba3e33473e360350be55602c983

General

Target

s.exe
Size

606KB
MD5

e56c9c4ab6dc95417d6c183365600548
SHA1

9ef8b8825f0c4b1a655653bb4090fd0086d94cc6
SHA256

4388d14cd19cb633714502e52d87743ba879eba3e33473e360350be55602c983
SHA512

4e9fc00fab520a09f6c26378832530e3490a5f295d0b55e6e30733175bb306e38ab66d6e7aaf74f1c7d7531e512899859521beda9801d49943d2e9e7205aae81

Score

10^/10

formbook n7ak rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1872-62-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/1872-64-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral1/memory/1472-74-0x0000000000090000-0x00000000000BE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

mshta.execmstp.exe

description	pid	process	target process
PID 1872 set thread context of 1208	1872	mshta.exe	Explorer.EXE
PID 1872 set thread context of 1208	1872	mshta.exe	Explorer.EXE
PID 1472 set thread context of 1208	1472	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

mshta.execmstp.exe

pid	process
1872	mshta.exe
1872	mshta.exe
1872	mshta.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe
1472	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

mshta.execmstp.exe

pid process

1872 mshta.exe
1872 mshta.exe
1872 mshta.exe
1872 mshta.exe
1472 cmstp.exe
1472 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mshta.execmstp.exe

description pid process

Token: SeDebugPrivilege 1872 mshta.exe
Token: SeDebugPrivilege 1472 cmstp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1872	mshta.exe
Token: SeDebugPrivilege	1472	cmstp.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

s.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1820 wrote to memory of 1872	1820	s.exe	mshta.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1208 wrote to memory of 1472	1208	Explorer.EXE	cmstp.exe
PID 1472 wrote to memory of 300	1472	cmstp.exe	cmd.exe
PID 1472 wrote to memory of 300	1472	cmstp.exe	cmd.exe
PID 1472 wrote to memory of 300	1472	cmstp.exe	cmd.exe
PID 1472 wrote to memory of 300	1472	cmstp.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:1208

C:\Users\Admin\AppData\Local\Temp\s.exe
"C:\Users\Admin\AppData\Local\Temp\s.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\mshta.exe
C:\Windows\System32\mshta.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1872

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1472

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\mshta.exe"
3⤵
PID:300

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/300-72-0x0000000000000000-mapping.dmp

Download
memory/1208-77-0x0000000007340000-0x00000000074A6000-memory.dmp

Filesize
1.4MB

Download
memory/1208-67-0x0000000004CF0000-0x0000000004E21000-memory.dmp

Filesize
1.2MB

Download
memory/1208-69-0x0000000004EA0000-0x0000000004F69000-memory.dmp

Filesize
804KB

Download
memory/1472-76-0x0000000001CE0000-0x0000000001D73000-memory.dmp

Filesize
588KB

Download
memory/1472-75-0x0000000001F20000-0x0000000002223000-memory.dmp

Filesize
3.0MB

Download
memory/1472-74-0x0000000000090000-0x00000000000BE000-memory.dmp

Filesize
184KB

Download
memory/1472-73-0x0000000000550000-0x0000000000568000-memory.dmp

Filesize
96KB

Download
memory/1472-70-0x0000000000000000-mapping.dmp

Download
memory/1820-61-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1820-60-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1872-63-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1872-68-0x0000000000350000-0x0000000000364000-memory.dmp

Filesize
80KB

Download
memory/1872-66-0x0000000000310000-0x0000000000324000-memory.dmp

Filesize
80KB

Download
memory/1872-65-0x0000000002320000-0x0000000002623000-memory.dmp

Filesize
3.0MB

Download
memory/1872-64-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/1872-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads