formbook | bd4e6d059703f5a320f62a2db4c3b89e6c1878f0be17c06c494f0c1328fd1c50

Analysis

max time kernel
255s
max time network
324s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2022 13:31

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General

Target

HA-22-2819922-077.exe
Size

551KB
MD5

f3fa21b3a4822c327047bf6937862210
SHA1

39d943eb69e2823d90544c259faff8097e0337ce
SHA256

bd4e6d059703f5a320f62a2db4c3b89e6c1878f0be17c06c494f0c1328fd1c50
SHA512

e66cf4dc486aa340f593d3354caa5636550fd7cfb0ba16e4a41db4411b3546b787b43e673a8356a75859805e2a73a0e7f6b4256eaa61f6049aef5db3075293d5
SSDEEP

12288:JuN7XJPGa/5LplH5PN3r86eXEONa9iJ8jr4H:Juj+4zZO6Qnyn

Score

10^/10

formbook urde persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

urde

Decoy

belleriacortland.com

gxzyykx.com

blocksholding.net

zhangjiyuan.com

tyfinck.com

xn--v9s.club

xn--72c9at8ec1l.com

dorismart.online

nocodeuni.com

hmmprocesos.website

quartile.agency

iansdogname.com

karengillen.com

the-bitindexprime.info

nthanisolutions.com

nakamu.online

sahityanepal.com

sinwinindustry.com

shotblastwearingparts.com

nstsuccess.com

Signatures

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

Formbook payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/544-135-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/544-136-0x000000000041F140-mapping.dmp	formbook

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

HA-22-2819922-077.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\TaskKill\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\Иисус.sys"	HA-22-2819922-077.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

HA-22-2819922-077.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5AE0F28A17B54A15A874BD8A56E8F24D = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\HA-22-2819922-077.exe\""	HA-22-2819922-077.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

HA-22-2819922-077.exe

description pid process target process

PID 3308 set thread context of 544 3308 HA-22-2819922-077.exe CasPol.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

HA-22-2819922-077.exe

pid process

3308 HA-22-2819922-077.exe

description	pid	process	target process
PID 3308 set thread context of 544	3308	HA-22-2819922-077.exe	CasPol.exe

pid	process
3308	HA-22-2819922-077.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

HA-22-2819922-077.exe

description	pid	process
Token: SeDebugPrivilege	3308	HA-22-2819922-077.exe
Token: SeDebugPrivilege	3308	HA-22-2819922-077.exe
Token: SeLoadDriverPrivilege	3308	HA-22-2819922-077.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

HA-22-2819922-077.exe

description	pid	process	target process
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe
PID 3308 wrote to memory of 544	3308	HA-22-2819922-077.exe	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\HA-22-2819922-077.exe
"C:\Users\Admin\AppData\Local\Temp\HA-22-2819922-077.exe"
1⤵
- Sets service image path in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3308

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
PID:544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/544-135-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/544-136-0x000000000041F140-mapping.dmp

Download
memory/3308-132-0x000001E3A82D0000-0x000001E3A835E000-memory.dmp

Filesize
568KB

Download
memory/3308-133-0x00007FF8B3080000-0x00007FF8B3B41000-memory.dmp

Filesize
10.8MB

Download
memory/3308-134-0x00007FF8B3080000-0x00007FF8B3B41000-memory.dmp

Filesize
10.8MB

Download
memory/3308-137-0x00007FF8B3080000-0x00007FF8B3B41000-memory.dmp

Filesize
10.8MB

Download