a38b00b34a7d41bf1f9c5821f128dfd2fb39246d949a9b3f79ea2f6f498bdc45

Analysis

max time kernel
119s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2024, 01:58

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General

Target

04cb5f7d7619e932171404f322304850N.exe
Size

78KB
MD5

04cb5f7d7619e932171404f322304850
SHA1

6a9ef0e97087d8e3eec2d9dce52006b3fe0c6244
SHA256

a38b00b34a7d41bf1f9c5821f128dfd2fb39246d949a9b3f79ea2f6f498bdc45
SHA512

d186737ceb7d7c744b7b2b9da19ae939f818f1686b285ffce9992f0cfc2490d10154ada709b5f7e5ee302daeb9840e281dc1cbbdd61d85c3d30eb70307a994c2
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvPHG3GvUhCHi1X5GoOvmHOL:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAd

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1920	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1920	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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	04cb5f7d7619e932171404f322304850N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	04cb5f7d7619e932171404f322304850N.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	04cb5f7d7619e932171404f322304850N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 1920	4540	04cb5f7d7619e932171404f322304850N.exe	84
PID 4540 wrote to memory of 1920	4540	04cb5f7d7619e932171404f322304850N.exe	84
PID 4540 wrote to memory of 1920	4540	04cb5f7d7619e932171404f322304850N.exe	84

C:\Users\Admin\AppData\Local\Temp\04cb5f7d7619e932171404f322304850N.exe
"C:\Users\Admin\AppData\Local\Temp\04cb5f7d7619e932171404f322304850N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4540
- 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:1920

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
78KB

MD5
05d1125afdcc3fa6349e8701fec78e6a

SHA1
7a003653524ae114154c3965476018d675d6c218

SHA256
288e300867b52da92168a7c67f751770615acfeebea026db2e178eb744c76f56

SHA512
76858b018aac2ce4a6d934d563a43c360d6153dca75ab3d06ddb578de4fcf227e9c9afdb18de7ace56498026e691b3c80ac65e5e1b763733b3b1e50d5ae9156e

Download Submit
memory/1920-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4540-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4540-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads