2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304d

General

Target

2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Size

728KB
MD5

eb66af4da0dc4e8aebb7cca89cf95cb0
SHA1

ae37d7a2b8c973a5beef29db80ff07312d2a451b
SHA256

2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304d
SHA512

6910b805f1108b11dc4363554ee140cb630e07136282294137c5f7c827895b42a0e26fcda50eced5431b81f9e8fddedab9577b6a009ce6642d2e45d1721a1f77
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHs+hsuQXIQRUP/g8t5XiSIE9u7p9mo:v6Zv2ivhBVnFvh5Q44UP48rIEMmo

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\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbjr32.exe"	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.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\" %*"	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2348-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x00070000000234cc-5.dat	upx
behavioral2/memory/2348-7-0x0000000000400000-0x0000000000439000-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"	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
File created	C:\Windows\SysWOW64\msbjr32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
File opened for modification	C:\Windows\SysWOW64\msbjr32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
File created	C:\Windows\SysWOW64\concp32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
File created	C:\Windows\SysWOW64\vcl32.exe	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4080	2348	WerFault.exe	81

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	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{82984BCB-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 2510b094a0dead96698202edab22b328	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2348	2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe

C:\Users\Admin\AppData\Local\Temp\2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.exe
"C:\Users\Admin\AppData\Local\Temp\2143ce8c11bd2435658660bf2201e03f6e6c2dbe8dd501943900a79c166a304dN.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:2348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 700
  2⤵
  - Program crash
  PID:4080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2348 -ip 2348
1⤵
PID:940

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
732KB

MD5
52efae3541df62fab802477e9f9183d7

SHA1
43ceaf617eff7d05ff9e7256c3678d41d859f7d6

SHA256
ef436b3be606963056609cf7700bd22a8ae3e43b98d1c9df48ebe9e139d362fb

SHA512
2c02b6c2470a2eb745439fe59525fbd54693fb6fae7aff96e478d0ed8a6ceab27301be28f0531463b24ad2be777245038f2cbdc49a7fea87f4aba160a76579a4

Download Submit
memory/2348-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2348-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads