3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-08-2024 21:10

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General

Target

3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe
Size

75KB
MD5

737ec376b34125068df757dbe1e565ac
SHA1

5df4ac6e3d183450d78dcb77ac89c83a5d9d750a
SHA256

3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c
SHA512

4c9d1f345d44fd6526f60f985de386061e5c3f2e527c5df883a146eb7e9d3d006009d11656532ccd2739b217fd8467e518e82e92325fa5cc97e6fcbccdbd42ad
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OInvnHvvxIfhqhcGoI/R:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAR

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1072	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1072	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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.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	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 1072	2912	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe	84
PID 2912 wrote to memory of 1072	2912	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe	84
PID 2912 wrote to memory of 1072	2912	3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe	84

C:\Users\Admin\AppData\Local\Temp\3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe
"C:\Users\Admin\AppData\Local\Temp\3c859c0271d494b301b24ee81c283aea184733a683ef9a96f629451a92a1999c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- 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:1072

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
75KB

MD5
afcf0ff020c68adc948033d6ae09eb6a

SHA1
1a80a1476347680af01b5bf886e457913291dcfe

SHA256
706e7a30679c8787dac917d1460fab7354b48a626792cf49ad93e3c89e89c770

SHA512
4af9fe95af71ba48632bd6783b350ecf5d20880c773c33a1cf6bed0d691e4f8d5284ca39895df6e8e0be895ecb1d2ce1735aaaa250103e391fec4a689e5a9cf7

Download Submit
memory/1072-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2912-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2912-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads