a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743

General

Target

a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Size

577KB
MD5

6f68719446f3ffcaf1fd2792466099e2
SHA1

0f2368fc636cc7d3f799336991118ff0e8294728
SHA256

a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743
SHA512

f2073b2c21bad5ccfab1e44afe59d40bbd7ae77dcc7b9f666934fb88f40656942fb9ebe4929c95780b865adb6beb6a81ab0529491589ecad13d1cce942185b50
SSDEEP

12288:UsAqMGHGSX1388BxGVI43GVpinJ2suEn23teGb/I5FqsK0fh/ETnNnM1tt0:UsBbW1SaUEn2deGbfZ0+L1M1w

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\" %*"	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.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\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msnou32.exe"	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.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"	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{0EAC6957-32D7-4548-9E48-FE8D5C7373CE}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DAB2A1E9-D1C2-466D-8997-44FC1CA7FE13}.catalogItem	svchost.exe
File created	C:\Windows\SysWOW64\vcl32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
File created	C:\Windows\SysWOW64\msnou32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
File opened for modification	C:\Windows\SysWOW64\msnou32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
File created	C:\Windows\SysWOW64\concp32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3204	1544	WerFault.exe	74

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4E1447E4-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 262b54e4496aec02b8f927815748ec75	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1544	a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe

C:\Users\Admin\AppData\Local\Temp\a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.exe
"C:\Users\Admin\AppData\Local\Temp\a17f1cb0ff2f74a7152c33725fc2f19642b4896a6e83cca0b3e06917c9a31743.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:1544
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 748
  2⤵
  - Program crash
  PID:3204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1544 -ip 1544
1⤵
PID:3036

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1544-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1544-133-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads