19b76f2bed4cedd456f1d2b72664d8c9cb2787f66d71932587d10f20c0912594

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 14:56

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General

Target

92687c6b6c6c0d4966bf26fece8daf30N.exe
Size

41KB
MD5

92687c6b6c6c0d4966bf26fece8daf30
SHA1

ab6e14d52bb8f66b4ff7b390500bd26bea25a0b9
SHA256

19b76f2bed4cedd456f1d2b72664d8c9cb2787f66d71932587d10f20c0912594
SHA512

a76b4d3d5f925ead1f7549f8b5c859cdf45ecd8b6837844d656c7114da08312c57c80e22b12abebd856f8ed74e469fe45f8d2324b7061ace5d8f475ab2adc6ad
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhG:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYm

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4500	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4500	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	92687c6b6c6c0d4966bf26fece8daf30N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	92687c6b6c6c0d4966bf26fece8daf30N.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	92687c6b6c6c0d4966bf26fece8daf30N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 4500	468	92687c6b6c6c0d4966bf26fece8daf30N.exe	83
PID 468 wrote to memory of 4500	468	92687c6b6c6c0d4966bf26fece8daf30N.exe	83
PID 468 wrote to memory of 4500	468	92687c6b6c6c0d4966bf26fece8daf30N.exe	83

C:\Users\Admin\AppData\Local\Temp\92687c6b6c6c0d4966bf26fece8daf30N.exe
"C:\Users\Admin\AppData\Local\Temp\92687c6b6c6c0d4966bf26fece8daf30N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4500

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
d277eab42eddf55a2b385b6dc362d3e6

SHA1
2bf6eed0a3fb390c8a306c5a4402a9eb2c785733

SHA256
319b287d0e287e2a9a39674e2802053e390abc32c6e49d0216a94a5ceaac04a3

SHA512
9b72b21cb12a17fdec681f238aa9760d92a04dec38b0be7203698b499ea3877797f6e74520ff0f4c0db5ca38526f60a9b7ed977d084a263302ada07c60f3c96d

Download Submit
memory/468-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/468-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4500-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4500-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads