24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57

General

Target
24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Size 1.2MB
Sample241107-sdk53awrhl
SHA256 24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57
MD5 68b6e1da249421fedf2c6cf9d01a6720
SHA1 0a29e2994608555503b77b424ca828e00fc3e117
SHA512 1c47bd186c111c58bc5221e6124d4eef1e706c1ceb930ae7777652d6980a3a442e6f6a71ebe23a2c371c89467bfacb16859fd86cb0ec40d2d769f61672e9a584
SSDEEP 24576:v6Zv2ivhBVnFys7xP86Lh7uhmh8VZ7i/+XAmvYSFdbRPIbgRrhQKNzkM/rCher5a:vE2ivhQs7dLNuhmuVZ7iHmv5FJRIq6Gs
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery 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\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbyc32.exe"	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.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\" %*"	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

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"	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
File created	C:\Windows\SysWOW64\msbyc32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
File opened for modification	C:\Windows\SysWOW64\msbyc32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
File created	C:\Windows\SysWOW64\concp32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1804-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x000a000000023b6e-5.dat	upx
behavioral2/memory/1804-7-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3700	1804	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63A9D195-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 4f34f59ebc15d27431dbdd50dd02637a	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1804	24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe

C:\Users\Admin\AppData\Local\Temp\24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.exe
"C:\Users\Admin\AppData\Local\Temp\24d0dc9cfec2375e31892b9caf32557c0714c1d55c7f2bcc15c6c83919740d57N.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
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:1804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1804 -s 700
  2⤵
  - Program crash
  PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1804 -ip 1804
1⤵
PID:1120

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

concp32.exe

Path C:\Windows\SysWOW64\concp32.exe
Size 1.2MB
SHA256 25d6b879e63f3f067363eacc67388b245d186c6e5f665f891972faa84a03d85f
MD5 ceb7740a33c31e25a78a6f809f7bdbc9
SHA1 694ba3138c789d04e14f8acd8d5dc3e443382523
SHA512 bcf0b6768cfb5c37972e92bd3f30c3a6823b0d35161207d93788c6f40f5894d5e75bde77b73b94322779f58e3c3f17b3aafb66c9a27fc5970c2de9d6fd367749
SSDEEP 24576:v6Zv2ivhBVnFys7xP86Lh7uhmh8VZ7i/+XAmvYSFdbRPIbgRrhQKNzkM/rCher5L:vE2ivhQs7dLNuhmuVZ7iHmv5FJRIq6GN
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1804-0-0x0000000000400000-0x0000000000439000-memory.dmp

Download

memory/1804-7-0x0000000000400000-0x0000000000439000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads