b307fa39c5f1c15edbd64bf3f6b2c6f7022aca1f571f32592bed8adbe80d8ffa

General

Target

90dc3432e1fb36a086533848abc9ce80N.exe
Size

777KB
MD5

90dc3432e1fb36a086533848abc9ce80
SHA1

0a8232349b17b241d06793140fbcfa85eff3d7d7
SHA256

b307fa39c5f1c15edbd64bf3f6b2c6f7022aca1f571f32592bed8adbe80d8ffa
SHA512

696c0b6f9961f488480e0516a49ee0a531f3df623a118316041716fb6872b5b67d4d80b433a734cc0f6806a0a5ba477641c0cd403c4684b169526cef825dd661
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHSs7xPY1f6HriPwU8yMKhEQVYs6wqdkY:v6Zv2ivhBVnFys7xP86LkJMlQVYQun

Score

8^/10

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\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msiuc32.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msiuc32.exe"	90dc3432e1fb36a086533848abc9ce80N.exe

Executes dropped EXE 1 IoCs

pid	Process
1032	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\" %*"	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2064-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0008000000015e87-5.dat	upx
behavioral1/memory/2064-14-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/memory/1032-15-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral1/files/0x0008000000015dab-13.dat	upx
behavioral1/memory/1032-16-0x0000000000400000-0x0000000000439000-memory.dmp	upx

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"	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	svchost.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msiuc32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File opened for modification	C:\Windows\SysWOW64\msiuc32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File created	C:\Windows\SysWOW64\concp32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	90dc3432e1fb36a086533848abc9ce80N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File opened for modification	C:\Windows\svchost.exe	90dc3432e1fb36a086533848abc9ce80N.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\ax = b75b434c589dc54e8119839bacbca73c	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\u1 = 551d2e0658054ba756fd3798fea5ffca42865cb762a31639dabd7f2cca44e226	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\v = "165"	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\u0 = 658663d26f8bad325217a06063847056939f558d910ed252e05dd0113550f7fc0f4da82ff73a0681ba604c2d4f23269f	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\u2 = a54a6b702f92fdf2acd57599e2ae1608015dff41aa020117fc9bd8e2dcf4340f3fa61eb55d6f28597df90602703809d4	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}	90dc3432e1fb36a086533848abc9ce80N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	90dc3432e1fb36a086533848abc9ce80N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{39230E7-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2064	90dc3432e1fb36a086533848abc9ce80N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2064 wrote to memory of 1032	2064	90dc3432e1fb36a086533848abc9ce80N.exe	30
PID 2064 wrote to memory of 1032	2064	90dc3432e1fb36a086533848abc9ce80N.exe	30
PID 2064 wrote to memory of 1032	2064	90dc3432e1fb36a086533848abc9ce80N.exe	30
PID 2064 wrote to memory of 1032	2064	90dc3432e1fb36a086533848abc9ce80N.exe	30

C:\Users\Admin\AppData\Local\Temp\90dc3432e1fb36a086533848abc9ce80N.exe
"C:\Users\Admin\AppData\Local\Temp\90dc3432e1fb36a086533848abc9ce80N.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
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2064
- 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
  - Modifies registry class
  PID:1032

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
782KB

MD5
a0a5f9815c3d68ede988fbcbbe59f737

SHA1
7cd2d71a42d432904f796315666599c95ddfae34

SHA256
937d19d1ee6b2df0c8f1cf0ec4f539b406a9b7c48e021ca83a0cd8e3e7f6b131

SHA512
1a01a80c739ea05ef64f017d82bf6f83e9b8edbf8945d7cbfb72b56941b9be12670cad281411079f2050fb2f6ddfa5cd8d98363af209a70de8112a779fbec50b

Download Submit
C:\Windows\svchost.exe

Filesize
782KB

MD5
4e9610e2ecc3ca2577bbad1e0ba6dd0e

SHA1
4c91176dc1466b42020ff51f855e05daf83bc3c8

SHA256
478de3be1e0fd250deaf872d67afcfaddbb5ed8880a7d2a9fd48b657b04af84c

SHA512
aa84fe5dffb8c5ba64b4d72e3f1d8a51d3a7f3a02fa933bfeef0254c85d1525c42293ccd96187f4afac342ee44c6d092b5acdc1f2ea213d6f90490fb36f1521e

Download Submit
memory/1032-15-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1032-16-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2064-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2064-14-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads