8f75ba411a122ff607c30e29db68a561f49174920182a6862b709c20e55be4c8

Analysis

max time kernel
141s
max time network
136s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/01/2024, 08:14

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General

Target

3c58a768806b7cf7102828a36a931788.exe
Size

89KB
MD5

3c58a768806b7cf7102828a36a931788
SHA1

4ed8363c4265f163f9bd038d76105662bd9bbf96
SHA256

8f75ba411a122ff607c30e29db68a561f49174920182a6862b709c20e55be4c8
SHA512

cae00b6f51ebf2f1cf9b8d55f53d00a230891647843b6376b93161169e27140b1d83953eebd010505374f2c69f0f54737d2df364d129b1a3b4465d2c9f62e56d
SSDEEP

1536:5f69FF9pvyv5H3Yq7ODyYE++llwwMs2M5J:5iPF9pvyRXxN+s2M5J

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3c58a768806b7cf7102828a36a931788.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Mstsc = "C:\\Windows\\System32\\drivers\\mstsc.exe /waitservice"	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3c58a768806b7cf7102828a36a931788.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ClipSrv = "C:\\Users\\Admin\\LOCALS~1\\APPLIC~1\\MICROS~1\\clipsrv.exe /waitservice"	3c58a768806b7cf7102828a36a931788.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\mstsc.exe	3c58a768806b7cf7102828a36a931788.exe
File opened for modification	C:\Windows\SysWOW64\drivers\mstsc.exe	3c58a768806b7cf7102828a36a931788.exe

Executes dropped EXE 1 IoCs

pid	Process
2296	logman.exe

Loads dropped DLL 2 IoCs

pid	Process
1056	3c58a768806b7cf7102828a36a931788.exe
1056	3c58a768806b7cf7102828a36a931788.exe

Modifies data under HKEY_USERS 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	3c58a768806b7cf7102828a36a931788.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Cisvc = "C:\\Users\\Admin\\AppData\\Roaming\\cisvc.exe /waitservice"	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT	3c58a768806b7cf7102828a36a931788.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	3c58a768806b7cf7102828a36a931788.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2296	1056	3c58a768806b7cf7102828a36a931788.exe	28
PID 1056 wrote to memory of 2296	1056	3c58a768806b7cf7102828a36a931788.exe	28
PID 1056 wrote to memory of 2296	1056	3c58a768806b7cf7102828a36a931788.exe	28
PID 1056 wrote to memory of 2296	1056	3c58a768806b7cf7102828a36a931788.exe	28

C:\Users\Admin\AppData\Local\Temp\3c58a768806b7cf7102828a36a931788.exe
"C:\Users\Admin\AppData\Local\Temp\3c58a768806b7cf7102828a36a931788.exe"
1⤵
- Adds policy Run key to start application
- Drops file in Drivers directory
- Loads dropped DLL
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Roaming\MICROS~1\logman.exe
  C:\Users\Admin\AppData\Roaming\MICROS~1\logman.exe /waitservice
  2⤵
  - Executes dropped EXE
  PID:2296

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

C:\Users\Admin\AppData\Roaming\cisvc.exe

Filesize
89KB

MD5
3c58a768806b7cf7102828a36a931788

SHA1
4ed8363c4265f163f9bd038d76105662bd9bbf96

SHA256
8f75ba411a122ff607c30e29db68a561f49174920182a6862b709c20e55be4c8

SHA512
cae00b6f51ebf2f1cf9b8d55f53d00a230891647843b6376b93161169e27140b1d83953eebd010505374f2c69f0f54737d2df364d129b1a3b4465d2c9f62e56d

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads