021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120

Analysis

max time kernel
149s
max time network
152s
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, 19:09

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General

Target
021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe
Size 54KB
Sample241111-xt8zaaxmbk
SHA256 021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120
MD5 bcde7acc1ec6cc4ffc74e66dd3b9ea04
SHA1 5ffe5129974809c993f4d7672628a5cdce6abe9c
SHA512 4f9f28d1b5ab8e2d20194364fb75d3dc065ac3d5e06c83a8f340751b02351f8e7aeee0bd5d273d4967c6d5e0744a5c21c0a0a782d9187796111d5b9f67af1dbd
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhm:E1oEFlt6vghzwYu7vih9GueIh9j2IoHJ
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3760	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3760	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.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	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 228 wrote to memory of 3760	228	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe	83
PID 228 wrote to memory of 3760	228	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe	83
PID 228 wrote to memory of 3760	228	021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe	83

C:\Users\Admin\AppData\Local\Temp\021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe
"C:\Users\Admin\AppData\Local\Temp\021c06d0bae4d23ceae6fb3985d96ebf0699cced3d6d33c890d45f6b07ef5120.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:228
- 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:3760

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 54KB
SHA256 a9f8a31e2fe43d4458ff28fb871be585e28dcb34b1dc02517ffba1ab27fc7fc5
MD5 164e25abc4f2794f6922333ee06bd992
SHA1 b80d66ac2a7157141f901ffad13dbed80320af26
SHA512 945a1e89a4e4d24d57082551b3d802d02fcc56def86a35de250b897aafb4217b2312fc67095d0a779224c5996a8b832e4228c7c18cd275978b4240fe955958c6
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhI:E1oEFlt6vghzwYu7vih9GueIh9j2IoHb
MD5 SHA1 SHA512 SSDEEP

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memory/228-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/228-5-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3760-7-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads