4e8fb22c79ebda46d51f9edda977a27494ae9cc4efc142432bf37391a5a99212

Analysis

max time kernel
119s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 09:34

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General

Target

b7f46d59209a5f297121cf534d77a7b0N.exe
Size

41KB
MD5

b7f46d59209a5f297121cf534d77a7b0
SHA1

015abb16998d09dedb146e759729af135c5d1a69
SHA256

4e8fb22c79ebda46d51f9edda977a27494ae9cc4efc142432bf37391a5a99212
SHA512

01831a4a3b99994ab5fd9c45c5e3e8fdb8bb1d06e5c5bbcc85a8f87522d597751ab13bddb3ecad3c5d279709f21bc29b4febbacb23f93f676d797cbc46814b1b
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhR:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYx

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4524	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4524	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-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b7f46d59209a5f297121cf534d77a7b0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b7f46d59209a5f297121cf534d77a7b0N.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	b7f46d59209a5f297121cf534d77a7b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 4524	4012	b7f46d59209a5f297121cf534d77a7b0N.exe	84
PID 4012 wrote to memory of 4524	4012	b7f46d59209a5f297121cf534d77a7b0N.exe	84
PID 4012 wrote to memory of 4524	4012	b7f46d59209a5f297121cf534d77a7b0N.exe	84

C:\Users\Admin\AppData\Local\Temp\b7f46d59209a5f297121cf534d77a7b0N.exe
"C:\Users\Admin\AppData\Local\Temp\b7f46d59209a5f297121cf534d77a7b0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4524

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
56ca530c5e404d1139a3644003ec1fa1

SHA1
b990cf43ccb7559bc1adfa3a151e8fb4bd0c2e6c

SHA256
a8ce47e2470f802318f27cae55cda0e7831bd35640c7aba46cd9c73eb9909f69

SHA512
91f06c199d4cdbf23e4890ee1aed4c952faef776cbaa7129ba22bcf6e3e4de9028d1a1a1eaf25dede3f3dd2887f0b62f89c4594bc1158f2c68023fd2121b6233

Download Submit
memory/4012-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4012-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4524-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads