formbook | 5145f1759e79b4d29641c6c604173b0bae2a3d7b156b49e8c267da63e0cd94d6

General

Target

5.exe
Size

792KB
MD5

3c1181489ccff99bc9b8cda800381525
SHA1

cb466992514ba4541bb7776ce0fbdfa75840028e
SHA256

5145f1759e79b4d29641c6c604173b0bae2a3d7b156b49e8c267da63e0cd94d6
SHA512

0bfaee9018cab7bde98116563875dcb1aeb95765b159e38d201d54daf114071de9bfc5a360ca79c994e3d73f5fc5b2b57193f0a384fac93dd959a9ff32cb6f56

Score

10^/10

formbook 3nop rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

3nop

C2

http://www.jakesplacebarbers.com/3nop/

Decoy

videohm.com

panache-rose.com

alnooncars-kw.com

trueblue2u.com

brussels-cafe.com

ip2c.net

influenzerr.com

rbcoq.com

zzful.com

drainthe.com

sumaholesson.com

cursosaprovados.com

genotecinc.com

dbrulhart.com

theapiarystudios.com

kensyu-kan.com

dkku88.com

tikhyper.com

aztecnort.com

homebrim.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
behavioral2/memory/2884-119-0x0000000000000000-mapping.dmp	formbook
behavioral2/memory/2884-121-0x0000000010410000-0x000000001043E000-memory.dmp	formbook
behavioral2/memory/3708-130-0x0000000000420000-0x000000000044E000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

Processes:

secinit.exemsiexec.exe

description	pid	process	target process
PID 2884 set thread context of 2964	2884	secinit.exe	Explorer.EXE
PID 3708 set thread context of 2964	3708	msiexec.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

secinit.exemsiexec.exe

pid	process
2884	secinit.exe
2884	secinit.exe
2884	secinit.exe
2884	secinit.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe
3708	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

secinit.exemsiexec.exe

pid process

2884 secinit.exe
2884 secinit.exe
2884 secinit.exe
3708 msiexec.exe
3708 msiexec.exe

pid	process
2964	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 18 IoCs

Processes:

secinit.exeExplorer.EXEmsiexec.exe

description	pid	process
Token: SeDebugPrivilege	2884	secinit.exe
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeDebugPrivilege	3708	msiexec.exe
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE
Token: SeShutdownPrivilege	2964	Explorer.EXE
Token: SeCreatePagefilePrivilege	2964	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE
2964 Explorer.EXE

pid	process
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE
2964	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

5.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 3992 wrote to memory of 2884	3992	5.exe	secinit.exe
PID 2964 wrote to memory of 3708	2964	Explorer.EXE	msiexec.exe
PID 2964 wrote to memory of 3708	2964	Explorer.EXE	msiexec.exe
PID 2964 wrote to memory of 3708	2964	Explorer.EXE	msiexec.exe
PID 3708 wrote to memory of 3636	3708	msiexec.exe	cmd.exe
PID 3708 wrote to memory of 3636	3708	msiexec.exe	cmd.exe
PID 3708 wrote to memory of 3636	3708	msiexec.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2964

C:\Users\Admin\AppData\Local\Temp\5.exe
"C:\Users\Admin\AppData\Local\Temp\5.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3992

C:\Windows\SysWOW64\secinit.exe
C:\Windows\System32\secinit.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2884

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:3708

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\secinit.exe"
3⤵
PID:3636

Network

MITRE ATT&CK Matrix

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Downloads

memory/2884-123-0x0000000004D40000-0x0000000004D54000-memory.dmp

Filesize
80KB

Download
memory/2884-121-0x0000000010410000-0x000000001043E000-memory.dmp

Filesize
184KB

Download
memory/2884-120-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

Filesize
4KB

Download
memory/2884-122-0x0000000004DE0000-0x0000000005100000-memory.dmp

Filesize
3.1MB

Download
memory/2884-119-0x0000000000000000-mapping.dmp

Download
memory/2964-133-0x00000000083C0000-0x00000000084D8000-memory.dmp

Filesize
1.1MB

Download
memory/2964-124-0x0000000006760000-0x0000000006879000-memory.dmp

Filesize
1.1MB

Download
memory/3636-128-0x0000000000000000-mapping.dmp

Download
memory/3708-131-0x0000000004440000-0x0000000004760000-memory.dmp

Filesize
3.1MB

Download
memory/3708-129-0x0000000000B50000-0x0000000000B62000-memory.dmp

Filesize
72KB

Download
memory/3708-125-0x0000000000000000-mapping.dmp

Download
memory/3708-130-0x0000000000420000-0x000000000044E000-memory.dmp

Filesize
184KB

Download
memory/3708-132-0x00000000041A0000-0x0000000004233000-memory.dmp

Filesize
588KB

Download
memory/3992-115-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads