336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959

Analysis

max time kernel
65s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 09:13

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General

Target

336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Size

344KB
MD5

8b5f757fe85cc8135ce3dfb9d2876194
SHA1

4f083da6fa01e960f0211e9b119d1ac2f888abf5
SHA256

336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959
SHA512

910595cd7d70cb81725a978e1194567584c2e5e6b07558bcea3dce0eac39ac62fa6d162a0f57b0328af42b0e99fb8a27667997428f37c84540bc17ae09708ff9
SSDEEP

6144:MRAhhJxX7bNIKTQ/ary6Gpu8A4f1vgSg2s/EZrdL56ITXEzKXvLSj4sLbH:UsAL/WBvU1s2ssZrdMIhXOjtT

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbkn32.exe"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\SysWOW64\msbkn32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File opened for modification	C:\Windows\SysWOW64\msbkn32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File created	C:\Windows\SysWOW64\concp32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3752	1612	WerFault.exe	81

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 96c352067b7b3bc405e0f009788f39d7	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{435274CA-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1612	336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe

C:\Users\Admin\AppData\Local\Temp\336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe
"C:\Users\Admin\AppData\Local\Temp\336817d367a74ec5bd1fc91db5adca4249a3b8ddc67b9aa9d875a335489b5959.exe"
1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:1612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 700
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1612 -ip 1612
1⤵
PID:2348

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

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/1612-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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memory/1612-133-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

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