eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769

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
25/09/2024, 23:25

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General

Target
eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe
Size 48KB
Sample240925-3eqgaatdrq
SHA256 eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769
MD5 baad424bf4d249ea48d0b3e836fd8c30
SHA1 39ff88d1958b74b39a424e2441dc486773219265
SHA512 4311c99d870db2fb079ae45cb36dbbebbda74f3c6d7d6d94fcd8dccdbda954ef49ef4f3f721a7bac9e7715b34f011b4631b5f4bda93f2eab8aa2a8e4b1452331
SSDEEP 1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIJ:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVj
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4052	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4052	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"	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.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	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 4052	3448	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe	82
PID 3448 wrote to memory of 4052	3448	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe	82
PID 3448 wrote to memory of 4052	3448	eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe	82

C:\Users\Admin\AppData\Local\Temp\eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe
"C:\Users\Admin\AppData\Local\Temp\eae57275efc2d7be3a49e245d540123f21478c03d6261cb9a22ca0e9b1607769N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4052

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 48KB
SHA256 8328baf19035dc1b67e8a6790ec87ce9df4d10881bb23b580bd16339cccee1e8
MD5 403d7b07c912cd3b930063d46b61938c
SHA1 9d852d610c9a86f9181577a4ee7fce80ad599bf7
SHA512 bb6dc9c0f3dd95ffafcef3fe661ea087b1b6febde0c0f995473f56a66951c37718fd8d633aef05de9aa3cc74833e1b4b0d884bbb076812ee5cf4d8cf2fcc15c4
SSDEEP 1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIb:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVt
MD5 SHA1 SHA512 SSDEEP

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memory/3448-0-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/3448-4-0x0000000000400000-0x0000000000403000-memory.dmp

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memory/4052-6-0x0000000000400000-0x0000000000403000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads