420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e

General

Target

420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Size

969KB
MD5

9a9dcb0a2e9c4f6ea73ef9ef7639597b
SHA1

e384cff90ece7d11f4bb0d1b41a55bb7f36940db
SHA256

420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e
SHA512

245d652cf768261b41fb5ef645f0f12001c8657e4e03565e1e9a0eaedd9ce1dd7dce65690c06b4be76e702d203acb8ba1e10be7d2de77588e8279bf2ca512d8c
SSDEEP

24576:v6Zv2ivhBVnFys7xP86Lh7uhmh8VZ7i/+XAmvYSFdbRPIbgRu:vE2ivhQs7dLNuhmuVZ7iHmv5FJRIqu

Score

8^/10

persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msger32.exe"	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4452-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x00070000000234e4-5.dat	upx
behavioral2/memory/4452-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\concp32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
File created	C:\Windows\SysWOW64\vcl32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
File created	C:\Windows\SysWOW64\msger32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
File opened for modification	C:\Windows\SysWOW64\msger32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
File created	C:\Windows\SysWOW64\concp32.exe	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4464	4452	WerFault.exe	83

Modifies registry class 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}\ax = fe82ee7280f7e082441ca0b172b678d4	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{49B1A567-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4452	420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe

C:\Users\Admin\AppData\Local\Temp\420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe
"C:\Users\Admin\AppData\Local\Temp\420721f6d66b82eee6ab0cfb5ef5b91a0ead0c643c21ddf019af9e588a18fa2e.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 700
  2⤵
  - Program crash
  PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4452 -ip 4452
1⤵
PID:1056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
972KB

MD5
acf1824341e0bd02fbaff1cc4e0f0800

SHA1
138e1d8895f36baecf503fc0fc044f6cb0980fa5

SHA256
cf6851cc99106908d49dab5933b722d8165cbf9bd9aed1043ea74b885887bea5

SHA512
d66c7596ba12bd88a035179b1955a5365ade8890dee7bf95b91d9b2d7aa24d3931083f487c1ddc6b942bf0b812f5a7f1e38440e51d69be976e1b7e478f59c2f8

Download Submit
memory/4452-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4452-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads