39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228

Analysis

max time kernel
94s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 14:24

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General

Target

39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe
Size

61KB
MD5

74984650d4e247c9c5a5a39d2d804640
SHA1

b525347db38de1f706ebe917fe0eaf38d99901ca
SHA256

39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228
SHA512

eed96fe157041783a4b119bbda3fa09dccb50ad0e219954012dd3cb6ca173a492eae5ff7309fc944966a251d3a010223809cc7a7cd469cd01344fba0b9cf8650
SSDEEP

768:r8eRH+MlFh0pDpuJ84WEi+U6sh7iQroCHmyf+RjFBSuB2XpfsPpzSdtKPU:r9l+W8xFt6sh7iQroCoRB0u0sPpzSL

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe

Executes dropped EXE 1 IoCs

pid	Process
3392	bkgrnd.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2484-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x000b0000000234e9-7.dat	upx
behavioral2/memory/2484-11-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3392-17-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkgrnd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 3392	2484	39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe	82
PID 2484 wrote to memory of 3392	2484	39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe	82
PID 2484 wrote to memory of 3392	2484	39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe	82

C:\Users\Admin\AppData\Local\Temp\39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe
"C:\Users\Admin\AppData\Local\Temp\39d09ab79603942b8e076a489150d70482af733857a24633a21581f5aca27228N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe
  "C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\bkgrnd.exe

Filesize
62KB

MD5
d10df8d88fd4f97832d8f94c119d8597

SHA1
7e0cef7293880e944246b2369f646df87688f654

SHA256
bdba369a3949c7c96b2ea0ff73157b0d9967d16c25ffc96517221a9ff9731959

SHA512
7abb577a53884c50f4d7a35a60e6770bcdd8eb7deef9e5660ead8accae1b8d0f3fc763ac37f8cef5cab2e73a7d6abd2d29df3ab4d3c0569d9822ab8ca0024183

Download Submit
memory/2484-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2484-1-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/2484-2-0x0000000004000000-0x0000000004006000-memory.dmp

Filesize
24KB

Download
memory/2484-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3392-17-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download