61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/11/2024, 18:54

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General

Target
61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe
Size 66KB
Sample241111-xkap5atfml
SHA256 61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133
MD5 26090e9c2dbb50c38e92540b767aa97b
SHA1 912eccbc16d36e52299d246b308ee3ac7bb9e857
SHA512 ae6bc67d2e22f82bb17eb7fa1630e74c349f0a64a4696180c0d51338cc3286488df5ce700dfc77a2880eea2f0ede89b78026b5c9f37414d846231160d2fcf184
SSDEEP 1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbRJhHhLhIx:lAo1lOwvlKlXBP6vghzwYu7vih9GueIf
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
552	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
552	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.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	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 552	2260	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe	83
PID 2260 wrote to memory of 552	2260	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe	83
PID 2260 wrote to memory of 552	2260	61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe	83

C:\Users\Admin\AppData\Local\Temp\61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe
"C:\Users\Admin\AppData\Local\Temp\61973ff3d21fa95d835ab2a7ed719f5da0b3597e9337e8b23aa31d5fcace4133.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- 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:552

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 e51d971c8bb89d952475a363a6319dca74b5bd6c3a568dc2a22513e100f6be6f
MD5 7383b2bf2ca2a6a8ce7eb1c9f1b9d939
SHA1 54138ac40796f4af3cf9c9f264b15e6442bae128
SHA512 e02470f01a8b1722f2767820f10f131ea882682a6743e6fa780f0469eddb624f12d1925ad7704d9e2bd7fb8b2c522b2ce4e62c5bc2291f414f9803abd86c233c
SSDEEP 1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbRJhHhLhIR:lAo1lOwvlKlXBP6vghzwYu7vih9GueIf
MD5 SHA1 SHA512 SSDEEP

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memory/552-6-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/2260-0-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/2260-5-0x0000000000400000-0x000000000040F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads