13e4828dab5f4bb756b0344cf75aa170dfbb045e991a2ea02f040b1d2e32ef58

Analysis

max time kernel
93s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19-07-2024 16:35

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General

Target

Employee.exe
Size

15.5MB
MD5

94781760555781b76e9588585b4ee9dc
SHA1

af67e2dfdb2dc7f4478d2395808863108d079437
SHA256

13e4828dab5f4bb756b0344cf75aa170dfbb045e991a2ea02f040b1d2e32ef58
SHA512

ab8a110139cedf439630531b72da736f369b0379e53e89a2c78122ced7f27ed74e908a3317640272f0805c46a7b27aee2a59fe400dd53c1702ebdcfe4362b46a
SSDEEP

98304:JdLzoR0QyIxk2qv+MtK7i9C+88888888888SH:JdLzoR0sqv+MkO9

Score

7^/10

Malware Config

Signatures

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/memory/5048-6-0x0000029623000000-0x0000029623024000-memory.dmp	net_reactor

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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	Employee.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5048	Employee.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5048	Employee.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 3124	5048	Employee.exe	92
PID 5048 wrote to memory of 3124	5048	Employee.exe	92
PID 5048 wrote to memory of 3124	5048	Employee.exe	92
PID 5048 wrote to memory of 3124	5048	Employee.exe	92

C:\Users\Admin\AppData\Local\Temp\Employee.exe
"C:\Users\Admin\AppData\Local\Temp\Employee.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\system32\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  PID:3124

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3124-7-0x00007FFD54500000-0x00007FFD5451B000-memory.dmp

Filesize
108KB

Download
memory/3124-9-0x00007FFDC4504000-0x00007FFDC4505000-memory.dmp

Filesize
4KB

Download
memory/5048-0-0x00007FFDA8093000-0x00007FFDA8095000-memory.dmp

Filesize
8KB

Download
memory/5048-1-0x00000296201F0000-0x0000029621176000-memory.dmp

Filesize
15.5MB

Download
memory/5048-2-0x00007FFDA8090000-0x00007FFDA8B51000-memory.dmp

Filesize
10.8MB

Download
memory/5048-5-0x0000029623020000-0x0000029623032000-memory.dmp

Filesize
72KB

Download
memory/5048-6-0x0000029623000000-0x0000029623024000-memory.dmp

Filesize
144KB

Download
memory/5048-8-0x00007FFDA8090000-0x00007FFDA8B51000-memory.dmp

Filesize
10.8MB

Download
memory/5048-10-0x00007FFDA8090000-0x00007FFDA8B51000-memory.dmp

Filesize
10.8MB

Download