7f257eebe174997d0d6cf7ff30a49f44fd7b87444482a6c7a0391c4c8444133c

Analysis

max time kernel
176s
max time network
196s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 04:07

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General

Target

277d1d7d66b297cce0bb9a2d9d0731bf.exe
Size

59KB
MD5

277d1d7d66b297cce0bb9a2d9d0731bf
SHA1

2dbc0e7c788157aa4c870da8b8ab7215ae5b5b61
SHA256

7f257eebe174997d0d6cf7ff30a49f44fd7b87444482a6c7a0391c4c8444133c
SHA512

6fd39f352ad66972b6fbc807eed8394d361ecc89b58a3518a63f26ac1b858071d3da653eb6bac218d5b104fa2fdb22cb91f0f08d16c8c7762390f2a7faa1d67c
SSDEEP

1536:OptqGXd9y4AVStezIjsEEeySqKO2xu8GkX:0tJTy4ipzIoEEeySqKON7kX

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\spoolsv\Parameters\ServiceDll = "%SystemRoot%\\System32\\nqytjn.dll"	277d1d7d66b297cce0bb9a2d9d0731bf.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\spoolsv\Parameters\ServiceDll = "%SystemRoot%\\System32\\nqytjn.dll"	277d1d7d66b297cce0bb9a2d9d0731bf.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\spoolsv\Parameters\ServiceDll = "%SystemRoot%\\System32\\nqytjn.dll"	277d1d7d66b297cce0bb9a2d9d0731bf.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2668	277d1d7d66b297cce0bb9a2d9d0731bf.exe
2820	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\0004a2cb.001	277d1d7d66b297cce0bb9a2d9d0731bf.exe
File created	C:\Windows\SysWOW64\nqytjn.dll	277d1d7d66b297cce0bb9a2d9d0731bf.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2820	svchost.exe
2820	svchost.exe
2820	svchost.exe

C:\Users\Admin\AppData\Local\Temp\277d1d7d66b297cce0bb9a2d9d0731bf.exe
"C:\Users\Admin\AppData\Local\Temp\277d1d7d66b297cce0bb9a2d9d0731bf.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:2668

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k spoolsv
1⤵
- Deletes itself
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\nqytjn.dll

Filesize
89KB

MD5
f63b86fbd809f653a3fb32bbd09aaeff

SHA1
6c34ee3339797c6f1d8f71d37f8abc47fb6cf009

SHA256
67da6490bf180868c1a5e1ff86b43552a68c9145ad6e6650836749f982bf994e

SHA512
2b43fd6542787c218b560ee56de7c982cad155306784d8825656198e074aac441f48d812239bf1da74bf082984c0e8177830e0d1708a1a395917bdf68986f32b

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads