3fc99ab4ae6cd0e09ae7b63eaf34221d4464ff9eccbaa42f0eda00a3031d4bc0

General

Target

7b9d16e07d6d96e64e674b0a46c94580N.exe
Size

656KB
MD5

7b9d16e07d6d96e64e674b0a46c94580
SHA1

f0421b0c13dd924b6743944e400acd3c0044f7d5
SHA256

3fc99ab4ae6cd0e09ae7b63eaf34221d4464ff9eccbaa42f0eda00a3031d4bc0
SHA512

0a188f13c631aa9783f33e7061d89af3fd59c85618611c4a0e321861bf6e6dcf17fb9963fd1d0b1575eb880ccebe7668818ca5eefd295b8325084c4c9f5c25bb
SSDEEP

12288:7tKe6Zv23YLVFhBsC8iFHSs7xPY1f6HriPwU8mNCZQUEdsaj1k2CC9md:v6Zv2ivhBVnFys7xP86LkRCQsau2Y

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\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}	7b9d16e07d6d96e64e674b0a46c94580N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msvua32.exe"	7b9d16e07d6d96e64e674b0a46c94580N.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\" %*"	7b9d16e07d6d96e64e674b0a46c94580N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2060-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x00070000000234a6-5.dat	upx
behavioral2/memory/2060-7-0x0000000000400000-0x0000000000439000-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"	7b9d16e07d6d96e64e674b0a46c94580N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	7b9d16e07d6d96e64e674b0a46c94580N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\concp32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe
File created	C:\Windows\SysWOW64\vcl32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe
File created	C:\Windows\SysWOW64\msvua32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe
File opened for modification	C:\Windows\SysWOW64\msvua32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe
File created	C:\Windows\SysWOW64\concp32.exe	7b9d16e07d6d96e64e674b0a46c94580N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3680	2060	WerFault.exe	86

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	7b9d16e07d6d96e64e674b0a46c94580N.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}	7b9d16e07d6d96e64e674b0a46c94580N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	7b9d16e07d6d96e64e674b0a46c94580N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	7b9d16e07d6d96e64e674b0a46c94580N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E409D88D-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 350a3755b72164413af547103188c406	7b9d16e07d6d96e64e674b0a46c94580N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	7b9d16e07d6d96e64e674b0a46c94580N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2060	7b9d16e07d6d96e64e674b0a46c94580N.exe

C:\Users\Admin\AppData\Local\Temp\7b9d16e07d6d96e64e674b0a46c94580N.exe
"C:\Users\Admin\AppData\Local\Temp\7b9d16e07d6d96e64e674b0a46c94580N.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:2060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 744
  2⤵
  - Program crash
  PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2060 -ip 2060
1⤵
PID:2760

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\concp32.exe

Filesize
663KB

MD5
3d79f118399ccb92579cd318686f728b

SHA1
3d1980ee246670be402d95363e1797bf0a4c64d7

SHA256
7a0d6ec55ad78d582c87278e6eefcc18605efb920ca17ebc8cb9391f0e1fb828

SHA512
cf4e2525c7e72829c5d0b49db7d4377b6aaba3fac46b259f8b5ba5665c2456f0f8678fcd76f60a54d24a390b821b082810b36b5c9e3cf2ebd18d35306fc26d57

Download Submit
memory/2060-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2060-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads