0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564

General

Target

0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Size

579KB
MD5

919fea516bfec976184701ee093357fe
SHA1

5ff29021e88b669d8693ac3d4e9dbb11026c8b10
SHA256

0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564
SHA512

781c6894caf9a76cd45c25f4eaae0757eba94a7909b08c44837043ca0a458ff1a747edc6df6ae1c045fdeb8ec7c47c9572362a3247e4ffa22e3d67cff81681d4
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHs+hsuQXIQRUP/g8t5P4SJ5:v6Zv2ivhBVnFvh5Q44UP48RJ5

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\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msbqk32.exe"	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.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\" %*"	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3976-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x000700000002350e-5.dat	upx
behavioral2/memory/3976-7-0x0000000000400000-0x0000000000439000-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"	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msbqk32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
File opened for modification	C:\Windows\SysWOW64\msbqk32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
File created	C:\Windows\SysWOW64\concp32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
File created	C:\Windows\SysWOW64\vcl32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1080	3976	WerFault.exe	83

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\" %*"	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A4DD865C-8B9A-11D5-EBA1-F78EEEEEE983}\ax = a305a339bfeac66dfdf738dd03104a1b	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3976	0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe

C:\Users\Admin\AppData\Local\Temp\0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.exe
"C:\Users\Admin\AppData\Local\Temp\0a0a27defd488d28c8707bc40664f5bb026b46f045f5d7b46ab08502c30e5564.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:3976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 700
  2⤵
  - Program crash
  PID:1080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3976 -ip 3976
1⤵
PID:2172

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
581KB

MD5
dcdc6e787ef09654bfd5b1da28ab4fdc

SHA1
0bcd5ded3923015e6dc3c4f6852dbe2c3efe56bb

SHA256
0cf2498a9ced9f3f6fbe56e24ea7274873b9a9ca8a0c8d86a021e98d45c41c2a

SHA512
e0332793f7e9d36452ab89142ec1563676315858b57f6d9c027dab4a4c604f0ffc59a73b871b5ae823318f07c457dea5be9ea57f38e17a7d84c642f6077fb5d8

Download Submit
memory/3976-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/3976-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads