27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743

Analysis

max time kernel
119s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 16:53

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General

Target

27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe
Size

77KB
MD5

7eedc8ac3c3ab00b58b091be1f1c9bd0
SHA1

e73351f864e78ac5546e4fe557654ef1380edca4
SHA256

27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743
SHA512

695cf1eb139e838edcc22ac94fc4a0581303e5c182ad2c182675e1f7ee06e05e7a9e7df8ecbcbc2a4c98782f877c71e0a7bffbdd5b8919087c5700e7b0fbd42f
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OChhW4dI0h4HCIzhULoh:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAM

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3136	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3136	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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.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	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 3136	3916	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe	82
PID 3916 wrote to memory of 3136	3916	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe	82
PID 3916 wrote to memory of 3136	3916	27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe	82

C:\Users\Admin\AppData\Local\Temp\27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe
"C:\Users\Admin\AppData\Local\Temp\27b00f4268e1d4187bbfcfdc920450355270337f3fd4f1c8ef28b320da4d8743N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3916
- 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:3136

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
77KB

MD5
174344083df9fdfd3711175398e9b146

SHA1
c260a1a8c714410a7336e2388e84f1da11a81be2

SHA256
2e51e5a87a87393d085357e089c0c632df8219ee849ba945353c76161f634e37

SHA512
2f16df064732ae12754991fee042ab1a5a91edaa2eb05770ece3bfb711b337daec312df3e4a81657d610bbdf8f4a50fbc246f0e93449d31f16ad56d0ed9698f0

Download Submit
memory/3136-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3916-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3916-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads