d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6

Analysis

max time kernel
120s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 14:31

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General

Target
d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe
Size 66KB
Sample240925-rv2npsterb
SHA256 d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6
MD5 a04b95865cdf026a1b46501e0ac8f690
SHA1 d170c615795726a14a9c20f0ef314da8056f3b73
SHA512 765c3bd124f2021a1f123db70182ebe6dcf083a9cc55220199e2e1a5ca6a72d19f2a5e9627b3ffaf930d13de0a024c43f4f04f88dfa38ecaeb0b3b4f1c2f2d10
SSDEEP 1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uhX2LEhuD:NAoglOwvl4ulkP6vghzwYu7vih9GueIb
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3964	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3964	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 3964	3592	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe	84
PID 3592 wrote to memory of 3964	3592	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe	84
PID 3592 wrote to memory of 3964	3592	d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe	84

C:\Users\Admin\AppData\Local\Temp\d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe
"C:\Users\Admin\AppData\Local\Temp\d882e0c86f9ef7c96d8e35efa9071dffb0e769e8dbe113340040f604265520d6N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3964

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 66KB
SHA256 90bebbbb4a0e1c9d0715bd39460b697c1ad8b14ee6fcbf150f783c930a590cb5
MD5 887a21b24d2b823c79fd7719c65dae78
SHA1 cffea898ef99ef5e3467390da77463d46888a955
SHA512 557aebe32ddc20c04490a0ebea450d458645a1d8fecacb58827da3677c7d8aa23efeedc21196789b547d4a2af94956ab14f557dda37a9a6c2333fc5d6cc5841d
SSDEEP 1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uhX2LEhuN:NAoglOwvl4ulkP6vghzwYu7vih9GueIl
MD5 SHA1 SHA512 SSDEEP

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memory/3592-0-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/3592-5-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/3964-6-0x0000000000400000-0x000000000040F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads