35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5

General

Target

35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Size

1.3MB
MD5

db8795d2e483fcab4f4b39e212517fb0
SHA1

271076ae52089ac3928bfa7c6988f683a8efabe6
SHA256

35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5
SHA512

b41303da3c9ccfed2d11a09c133f218eb795874c33ebb3e2bd69eb7c88a5313296ab14765dc70b8cf9821029fb1a93aef0a1078fe3ca4ce79997f1cc5e4e975a
SSDEEP

24576:v6Zv2ivhBVnFys7xP86LXtqWJ/ej0umQf8/UWnxxWydqdSiEstRKU3Wo:vE2ivhQs7dLX/JkZ8/UWxwtdSWbKU3Wo

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 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\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msmws32.exe"	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msmws32.exe"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	svchost.exe

Modifies system executable filetype association 2 TTPs 2 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\" %*"	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

Adds Run key to start application 2 TTPs 4 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"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File created	C:\Windows\SysWOW64\msmws32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File opened for modification	C:\Windows\SysWOW64\msmws32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File created	C:\Windows\SysWOW64\concp32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2256-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0007000000016d46-5.dat	upx
behavioral1/memory/2712-16-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/memory/2256-15-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0009000000016c81-14.dat	upx
behavioral1/memory/2712-17-0x0000000000400000-0x0000000000439000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
File opened for modification	C:\Windows\svchost.exe	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 54ef9526159740f673adc32b5fa3aa95	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{D0933F9E-8B9A-11D5-EBA1-F78EEEEEE983}	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2256	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2712	2256	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe	30
PID 2256 wrote to memory of 2712	2256	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe	30
PID 2256 wrote to memory of 2712	2256	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe	30
PID 2256 wrote to memory of 2712	2256	35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe	30

C:\Users\Admin\AppData\Local\Temp\35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.exe
"C:\Users\Admin\AppData\Local\Temp\35307a1139f24f901729617c011962bc0e2d0649fd79f87763815af1f37c53c5N.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
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\svchost.exe
  C:\Windows\svchost.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:2712

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

C:\Windows\SysWOW64\concp32.exe

Filesize
1.3MB

MD5
4ee22bdfe2c91c98c8e63b69e56ad2e8

SHA1
a24dd87efe15e3bc22d530f8497d23caed246629

SHA256
9195331a39986492e3674d7147872ac4a2cc4ee558f03658b4a56df28936940e

SHA512
dd38e0f2a54dd2c604301cf676450f48c0e6095e4eebb8610c232422f1ae6033ce56f19feb2d24f4ded45a9930300c8a7a12f35a2373c67fd110c8c26ae5a6a6

Download Submit
C:\Windows\svchost.exe

Filesize
1.3MB

MD5
713e0fa3448191c9251888c2034b97a7

SHA1
dd7937ea4357426e3a5689f7c9d30722b2143597

SHA256
cbf3b3f4c163f5d333ef39ff4dc05747c03a7ab6fbcfaf7539d3f7d916021c02

SHA512
ea7084cca741b4a9e59da0b50c6f24ef2a69c3a011a71792c592ea27db178ea9dcea82a84b4cd8c0dbcd4e2459efbd2c4b710fbb899fc70127030b13afabd6a4

Download Submit
memory/2256-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2256-13-0x0000000000440000-0x0000000000479000-memory.dmp

Filesize
228KB

Download
memory/2256-15-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2712-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2712-17-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads