8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3d

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/09/2024, 21:35

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General

Target

8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe
Size

39KB
MD5

22bb7dda83a6f860d6bbf988fd21c300
SHA1

475ddb0b3157225cb504568515f1cad89d359af1
SHA256

8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3d
SHA512

f801087e8548c2880b23a9f1911699001930a1d1a53ffa73430d6f3dc1ac8ecf79a23c6fe7cf68b978a5fff3d96048586a3a2e1b73373d21d32e114f18041a50
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6I8:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gg

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1320	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1320	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.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	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 1320	3624	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe	82
PID 3624 wrote to memory of 1320	3624	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe	82
PID 3624 wrote to memory of 1320	3624	8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe	82

C:\Users\Admin\AppData\Local\Temp\8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe
"C:\Users\Admin\AppData\Local\Temp\8f1b530fb1dc9fa3d37842d2451eee85d76b28a34be84f9e84ebc65fad921a3dN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3624
- 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:1320

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
40KB

MD5
563723675f49b6af73ba267bbd90de45

SHA1
7e4e84637b749ed5fffae1b05cc3b2cbabb3b6c2

SHA256
44b5600b26c145792fe274b9122dbac1f67a08537978d59d10a4a84b1dd0d67d

SHA512
e2b811996a2ebc04f92dca12f3ddc7e199266abb279601e15dc983d54cc336eba852414460c729e3d1d1741e57463a1f1db00d262c7b36e3737ae3f2add634e4

Download Submit
memory/1320-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3624-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3624-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads