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 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\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mslna32.exe"	90dc3432e1fb36a086533848abc9ce80N.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\" %*"	90dc3432e1fb36a086533848abc9ce80N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3632-0-0x0000000000400000-0x0000000000439000-memory.dmp	upx
behavioral2/files/0x00070000000234ef-5.dat	upx
behavioral2/memory/3632-7-0x0000000000400000-0x0000000000439000-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"	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	90dc3432e1fb36a086533848abc9ce80N.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File created	C:\Windows\SysWOW64\mslna32.exe	90dc3432e1fb36a086533848abc9ce80N.exe
File opened for modification	C:\Windows\SysWOW64\mslna32.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4444	3632	WerFault.exe	83

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}	90dc3432e1fb36a086533848abc9ce80N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{654969C9-8B9A-11D5-EBA1-F78EEEEEE983}\ax = aa265d9845dbbc8de23c1ab0ccfc1c22	90dc3432e1fb36a086533848abc9ce80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	90dc3432e1fb36a086533848abc9ce80N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3632	90dc3432e1fb36a086533848abc9ce80N.exe

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
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3632 -s 740
  2⤵
  - Program crash
  PID:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3632 -ip 3632
1⤵
PID:3292

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
787KB

MD5
26b9fab7a3b65958296f66340fbd91bc

SHA1
5540288121beb0bf47cc854f38950198cb9d1810

SHA256
decd8101d9076faeb1cf11a04b7cb6b8e9725ca54244229d5e5cb87ed7e2cc00

SHA512
76b3f9a6e44caa8fa726f8cbfb67d29cc1737cae70528c5d1c516e8f57363a443ac974d7764d4bd0506ee25b90c15a0b95cf551bf4daf95bdc0b5141f987afc8

Download Submit
memory/3632-0-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/3632-7-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads