e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328

Analysis

max time kernel
149s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 10:52

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General

Target

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe
Size

41KB
MD5

83f41c19dce3a7dfedb9c3e4293cd46f
SHA1

4189d1789064f1b798afa5b570092f33ad589592
SHA256

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328
SHA512

d1c4de6d80af1b07e9a7b523d51acde79ba201c3db6b719700e929339b939967458919289015b5cd8f30f2e100e631a4147f3197e382dbdff400bc8b435d221f
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Im:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gi

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

2456 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

2456 microsofthelp.exe

pid	process
2456	microsofthelp.exe

pid	process
2456	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe

Drops file in Windows directory 2 IoCs

Processes:

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exemicrosofthelp.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.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

Processes:

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exemicrosofthelp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe

description	pid	process	target process
PID 3320 wrote to memory of 2456	3320	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe	microsofthelp.exe
PID 3320 wrote to memory of 2456	3320	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe	microsofthelp.exe
PID 3320 wrote to memory of 2456	3320	e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe
"C:\Users\Admin\AppData\Local\Temp\e9dce8ecf2c1d5cc57ff1f1821633bed92bb6113b69cc823bc902c2423128328.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3320
- 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:2456

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

C:\Windows\microsofthelp.exe

Filesize
41KB

MD5
d2b2e1ef08e8e61b7f44b26d956f958e

SHA1
bf518fa75d6126b3d3e19ef9a7642499096e8b6d

SHA256
4e9cb089d1dca3629e8780df8ac81692df8cd2b5b0cf68b08f53e0a641254806

SHA512
6181fae1e88e5b949b51114eb4217a3222aedffe0df26e2a64074591c83526c0379eb2ad32a9902e81861ab62188ef5482e8895359a8fce92c05a5a62b626afd

Download Submit
memory/2456-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3320-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3320-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download