39eb4fc327a37168c9ae5e4509d6617fbdf061974c1394842f2f6114e394fe6b

Analysis

max time kernel
152s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 12:07

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General

Target

VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe
Size

73KB
MD5

8425f28f96c15c6cdc7a33e7065f0230
SHA1

48e5c37fc385b6b92c497490c870ddd1f4a35c98
SHA256

39eb4fc327a37168c9ae5e4509d6617fbdf061974c1394842f2f6114e394fe6b
SHA512

a10a2f9b491b1a17f4a142b735dd745818dd61b6b63462c806676eb2fa5d4df900073b023ca5c0e1970763d2cfd5c6db3c3ce0521b41195db80670897246e591
SSDEEP

1536:c527w0byigtMK251AXxe4/ZdX0P4AC7Nlnahl+FtzobrP3ni1nP:ouN8xe4/ZdX0PB63aP+Hzobrf8P

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\M-3950-5949-8593-3948\winmgr.exe = "C:\\Users\\Admin\\M-3950-5949-8593-3948\\winmgr.exe:*:Enabled:Microsoft Windows Manager"	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe

Executes dropped EXE 1 IoCs

pid	Process
260	winmgr.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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Manager = "C:\\Users\\Admin\\M-3950-5949-8593-3948\\winmgr.exe"	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 656 wrote to memory of 260	656	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe	83
PID 656 wrote to memory of 260	656	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe	83
PID 656 wrote to memory of 260	656	VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe	83

C:\Users\Admin\AppData\Local\Temp\VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_8425f28f96c15c6cdc7a33e7065f0230.exe"
1⤵
- Modifies firewall policy service
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:656
- C:\Users\Admin\M-3950-5949-8593-3948\winmgr.exe
  "C:\Users\Admin\M-3950-5949-8593-3948\winmgr.exe"
  2⤵
  - Executes dropped EXE
  PID:260

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\M-3950-5949-8593-3948\winmgr.exe

Filesize
73KB

MD5
8425f28f96c15c6cdc7a33e7065f0230

SHA1
48e5c37fc385b6b92c497490c870ddd1f4a35c98

SHA256
39eb4fc327a37168c9ae5e4509d6617fbdf061974c1394842f2f6114e394fe6b

SHA512
a10a2f9b491b1a17f4a142b735dd745818dd61b6b63462c806676eb2fa5d4df900073b023ca5c0e1970763d2cfd5c6db3c3ce0521b41195db80670897246e591

Download Submit
memory/260-39-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/260-41-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/260-42-0x00000000004A0000-0x00000000004BA000-memory.dmp

Filesize
104KB

Download
memory/260-45-0x00000000004A0000-0x00000000004BA000-memory.dmp

Filesize
104KB

Download
memory/656-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/656-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/656-2-0x0000000000540000-0x000000000055A000-memory.dmp

Filesize
104KB

Download
memory/656-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/656-40-0x0000000000540000-0x000000000055A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads