formbook | 4916008c9d60fc85b7fa1676be78a01eb5eb8fe2b8d3c21d882fa0218de41627

General

Target

1.exe
Size

184KB
MD5

4574a60356d60a1b2924b0244bf59891
SHA1

ab6e0f4d487cf939e8167802b66332f53ad108c6
SHA256

4916008c9d60fc85b7fa1676be78a01eb5eb8fe2b8d3c21d882fa0218de41627
SHA512

b14af723a54fafd9169d86ff24ed2e5ba3a9a19fd94738bb7b68dd1302820fc3a52d5392bc64175d0ab4c3106d0718da2db5205d48512018e3bf538236d207ea

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 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/908-120-0x0000000000A00000-0x0000000000A2E000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

Processes:

1.execmstp.exe

description pid process target process

PID 632 set thread context of 2428 632 1.exe Explorer.EXE
PID 908 set thread context of 2428 908 cmstp.exe Explorer.EXE

description	pid	process	target process
PID 632 set thread context of 2428	632	1.exe	Explorer.EXE
PID 908 set thread context of 2428	908	cmstp.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-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

1.execmstp.exe

pid	process
632	1.exe
632	1.exe
632	1.exe
632	1.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe
908	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2428 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

1.execmstp.exe

pid process

632 1.exe
632 1.exe
632 1.exe
908 cmstp.exe
908 cmstp.exe

pid	process
2428	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 20 IoCs

Processes:

1.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	632	1.exe
Token: SeDebugPrivilege	908	cmstp.exe
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE
Token: SeShutdownPrivilege	2428	Explorer.EXE
Token: SeCreatePagefilePrivilege	2428	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE
2428 Explorer.EXE

pid	process
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE
2428	Explorer.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Explorer.EXEcmstp.exe

description	pid	process	target process
PID 2428 wrote to memory of 908	2428	Explorer.EXE	cmstp.exe
PID 2428 wrote to memory of 908	2428	Explorer.EXE	cmstp.exe
PID 2428 wrote to memory of 908	2428	Explorer.EXE	cmstp.exe
PID 908 wrote to memory of 912	908	cmstp.exe	cmd.exe
PID 908 wrote to memory of 912	908	cmstp.exe	cmd.exe
PID 908 wrote to memory of 912	908	cmstp.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:2428

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:632

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:852

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:908

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\1.exe"
3⤵
PID:912

Network

MITRE ATT&CK Matrix

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Downloads

memory/632-114-0x00000000015D0000-0x00000000018F0000-memory.dmp

Filesize
3.1MB

Download
memory/632-115-0x0000000001000000-0x000000000114A000-memory.dmp

Filesize
1.3MB

Download
memory/908-117-0x0000000000000000-mapping.dmp

Download
memory/908-120-0x0000000000A00000-0x0000000000A2E000-memory.dmp

Filesize
184KB

Download
memory/908-119-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

Filesize
88KB

Download
memory/908-121-0x0000000004B50000-0x0000000004E70000-memory.dmp

Filesize
3.1MB

Download
memory/908-122-0x00000000049E0000-0x0000000004A73000-memory.dmp

Filesize
588KB

Download
memory/912-118-0x0000000000000000-mapping.dmp

Download
memory/2428-116-0x00000000049F0000-0x0000000004B7E000-memory.dmp

Filesize
1.6MB

Download
memory/2428-123-0x0000000004B80000-0x0000000004D10000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads