b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7

Analysis

max time kernel
120s
max time network
95s
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, 03:13

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General

Target

b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe
Size

50KB
MD5

a9c3a987f71aa355b4c741d4e9ad86b0
SHA1

48415d3a7cc51ca794d7aa319e6a439609a9772f
SHA256

b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7
SHA512

9b18f5d70af461c94ce1aa66e23c1f9038271f35653acddf446805b21ac86664a230efda5ea13bdc182f9418d7063038e2144571d719baae5fe760fcd13356a4
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIM:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVO

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2376	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2376	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.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	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2376	1656	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe	82
PID 1656 wrote to memory of 2376	1656	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe	82
PID 1656 wrote to memory of 2376	1656	b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe	82

C:\Users\Admin\AppData\Local\Temp\b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe
"C:\Users\Admin\AppData\Local\Temp\b1e752e2c4399f3b3b0cf2c4c54fd82e41ac2f361be880f456883684309dcff7N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2376

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
51KB

MD5
02c609b6263e6ab672a8ffad4217ed97

SHA1
a686e10b61f0775e281774d4ad5e20f91bb3e2e3

SHA256
f2b2d885699ec2d60abef74f279018dae03656d86f5cbce031fd1709562d9ad3

SHA512
7ab5f6d02ebd86540fe502b4ab022494805d98fbf5f659e0cba78d4986d7a21c91b2566caf12e8702fa78c3ab1986138ec7c33ded6419848214ecc1975376393

Download Submit
memory/1656-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1656-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2376-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads