formbook | 05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0

General

Target

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
Size

463KB
MD5

9841dbf9dfa221a4e050db3e92689bc9
SHA1

6948e9499fc0bfa41a72107b1fc58b15a9e40f63
SHA256

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0
SHA512

c1791b418fbc55d00006f01a9b1dfba21dfed3fc4bb5b25f05a55c02e4c3af435a284979f186ec095bfc4e1d2717c0686d2e9b7a938be6ecf567cfd3e1517298

Score

10^/10

formbook h35 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

h35

Decoy

maraudersinc.com

liebianwangluo.com

visit-australia.info

machiyane-kasukabe.com

hafizclub.com

merkburn.net

favoritetraffic2updating.win

adrian-oeser.net

nkshopdomaincpplt234.info

imperiodofutebol.com

welometocaloundra.com

thehealthypose.com

squalloptna.com

bobknowsbest.com

damgproperties.com

wastemastershire.co.uk

swacballet.com

japanbreakingnews.com

bjufaa.info

aryakuza.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4880-136-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4880-142-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/2452-144-0x0000000000A40000-0x0000000000A6A000-memory.dmp	formbook
behavioral2/memory/2452-149-0x0000000000A40000-0x0000000000A6A000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeRegAsm.execmstp.exe

description	pid	process	target process
PID 3536 set thread context of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 4880 set thread context of 3056	4880	RegAsm.exe	Explorer.EXE
PID 2452 set thread context of 3056	2452	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

RegAsm.execmstp.exe

pid	process
4880	RegAsm.exe
4880	RegAsm.exe
4880	RegAsm.exe
4880	RegAsm.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe
2452	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3056 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegAsm.execmstp.exe

pid process

4880 RegAsm.exe
4880 RegAsm.exe
4880 RegAsm.exe
2452 cmstp.exe
2452 cmstp.exe

pid	process
3056	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeRegAsm.execmstp.exe

description	pid	process
Token: SeDebugPrivilege	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
Token: SeDebugPrivilege	4880	RegAsm.exe
Token: SeDebugPrivilege	2452	cmstp.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3536 wrote to memory of 4880	3536	05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe	RegAsm.exe
PID 3056 wrote to memory of 2452	3056	Explorer.EXE	cmstp.exe
PID 3056 wrote to memory of 2452	3056	Explorer.EXE	cmstp.exe
PID 3056 wrote to memory of 2452	3056	Explorer.EXE	cmstp.exe
PID 2452 wrote to memory of 340	2452	cmstp.exe	cmd.exe
PID 2452 wrote to memory of 340	2452	cmstp.exe	cmd.exe
PID 2452 wrote to memory of 340	2452	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3056

C:\Users\Admin\AppData\Local\Temp\05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe
"C:\Users\Admin\AppData\Local\Temp\05ab9004968d1a9d4187dac4e629ef8ea777fb66c4d009ad411f2f945f2a53f0.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3536

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4880

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:2452

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
PID:340

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/340-146-0x0000000000000000-mapping.dmp

Download
memory/2452-141-0x0000000000000000-mapping.dmp

Download
memory/2452-143-0x0000000000530000-0x0000000000546000-memory.dmp

Filesize
88KB

Download
memory/2452-149-0x0000000000A40000-0x0000000000A6A000-memory.dmp

Filesize
168KB

Download
memory/2452-147-0x0000000002760000-0x00000000027F3000-memory.dmp

Filesize
588KB

Download
memory/2452-145-0x00000000028D0000-0x0000000002C1A000-memory.dmp

Filesize
3.3MB

Download
memory/2452-144-0x0000000000A40000-0x0000000000A6A000-memory.dmp

Filesize
168KB

Download
memory/3056-150-0x0000000008420000-0x0000000008556000-memory.dmp

Filesize
1.2MB

Download
memory/3056-148-0x0000000008420000-0x0000000008556000-memory.dmp

Filesize
1.2MB

Download
memory/3056-140-0x00000000035B0000-0x0000000003689000-memory.dmp

Filesize
868KB

Download
memory/3536-133-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/3536-132-0x0000000005940000-0x00000000059D2000-memory.dmp

Filesize
584KB

Download
memory/3536-131-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/3536-134-0x0000000006CE0000-0x0000000006D7C000-memory.dmp

Filesize
624KB

Download
memory/3536-130-0x0000000000EB0000-0x0000000000F2A000-memory.dmp

Filesize
488KB

Download
memory/4880-139-0x0000000000AC0000-0x0000000000AD4000-memory.dmp

Filesize
80KB

Download
memory/4880-137-0x0000000002790000-0x0000000002ADA000-memory.dmp

Filesize
3.3MB

Download
memory/4880-142-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4880-136-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4880-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads