Overview

overview

10

Static

static

3

NNLoader.exe

windows7-x64

7

NNLoader.exe

windows10-2004-x64

10

Stub.pyc

windows7-x64

3

Stub.pyc

windows10-2004-x64

3

Sharing

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General

  • Target

    NNLoader.exe

  • Size

    9.4MB

  • Sample

    240823-21f93athkk

  • MD5

    4ed456dfa36635dabf31d6571c53362f

  • SHA1

    e6cd5d7271f99d04b90736e3e5defd0988f3103b

  • SHA256

    0acf9a31d3fbee46692c4a92d867038b6296d72b7d1d24b986d3f558e4cb7c90

  • SHA512

    337bdf3daa2ee09e2ffac24f549faa9e770bc3938062b5d88eaf2accfc10e9e098c8c7e55a16d4b3316e186b2ae1bb46868aa05c6b1c7b6abc17468c41f0fd15

  • SSDEEP

    196608:kTPCeRqxlEAtJb3tQk5tARHvUWvo3hxjno/w3iFCxHQbRpXJBz23:Hnt7v5tARHdgxro/w3uCxHQb5Z2

Score
10/10
exelastealercollectioncredential_accessdefense_evasiondiscoveryevasionpersistenceprivilege_escalationpyinstallerspywarestealerupx

Malware Config

Targets

    • Target

      NNLoader.exe

    • Size

      9.4MB

    • MD5

      4ed456dfa36635dabf31d6571c53362f

    • SHA1

      e6cd5d7271f99d04b90736e3e5defd0988f3103b

    • SHA256

      0acf9a31d3fbee46692c4a92d867038b6296d72b7d1d24b986d3f558e4cb7c90

    • SHA512

      337bdf3daa2ee09e2ffac24f549faa9e770bc3938062b5d88eaf2accfc10e9e098c8c7e55a16d4b3316e186b2ae1bb46868aa05c6b1c7b6abc17468c41f0fd15

    • SSDEEP

      196608:kTPCeRqxlEAtJb3tQk5tARHvUWvo3hxjno/w3iFCxHQbRpXJBz23:Hnt7v5tARHdgxro/w3uCxHQb5Z2

    Score
    10/10
    upxexelastealercollectioncredential_accessdefense_evasiondiscoveryevasionpersistenceprivilege_escalationpyinstallerspywarestealer

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

      stealerexelastealer

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

      evasion

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

      collection

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Network Service Discovery

      Attempt to gather information on host's network.

      discovery

    • Enumerates processes with tasklist

      discovery

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1behavioral2

    • Target

      Stub.pyc

    • Size

      799KB

    • MD5

      1883070249e753167dc78153e2326a4c

    • SHA1

      73c3d759425f21638e9eeaea0972604fe180f77b

    • SHA256

      57ed0a05eaca9932d88e48cad88eba55c103cad705f61fa9052b1d9573328d19

    • SHA512

      f08cd69fd8cc37bdeb3e579c9c6df7dd45fdafa574a7fc74411ef11cbaad06f588dc06b5045da2bfc94244a765fc05cb482a7ab42f5248200ae9ae7690c80cdc

    • SSDEEP

      24576:4DWVygd6NVH/xPY83LYVqnDmi43hOdXgKt:4JgmUqDFX

    Score
    3/10
    discovery
    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Account Manipulation

1
T1098

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Account Manipulation

1
T1098

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Network Service Discovery

1
T1046

Permission Groups Discovery

1
T1069

Local Groups

1
T1069.001

Process Discovery

1
T1057

Query Registry

1
T1012

System Information Discovery

4
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Wi-Fi Discovery

1
T1016.002

System Network Connections Discovery

1
T1049

Lateral Movement

Collection

Clipboard Data

1
T1115

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks