Overview

overview

10

Static

static

HEUR-Troja...8b.exe

windows7-x64

10

HEUR-Troja...8b.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    91s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2022 04:32

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General

  • Target

    HEUR-Trojan-Ransom.Win32.Generic-32f88ed5c23e8215f8443dac1a96e0a1c3be607dfc428d6954854adfe1d7308b.exe

  • Size

    61KB

  • MD5

    94c48acae497a1c852fcfc0c1ae5665e

  • SHA1

    7c11819b579d1aecd8df04f4bfa73f16b9d7b543

  • SHA256

    32f88ed5c23e8215f8443dac1a96e0a1c3be607dfc428d6954854adfe1d7308b

  • SHA512

    839c9005fbfa201d8123b30cd106083c5e141738c08d0f66fd62d92500a74e9947d6c2a6fc1a16fddab1d98d8e03ae9c3edfe0c01e3d404522a476419b2c900e

  • SSDEEP

    768:CKsMqCXfVcWO/M9ZkiANIUJVYLDwUzc80gmq3oP/oDe:CKseiM9ZkiAP0r/0O8/oq

Score
10/10
nitropersistenceransomwarespywarestealer

Malware Config

Signatures

  • Nitro

    A ransomware that demands Discord nitro gift codes to decrypt files.

    ransomwarenitro
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 5 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.Win32.Generic-32f88ed5c23e8215f8443dac1a96e0a1c3be607dfc428d6954854adfe1d7308b.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.Win32.Generic-32f88ed5c23e8215f8443dac1a96e0a1c3be607dfc428d6954854adfe1d7308b.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2676
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4696

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • memory/1080-132-0x0000000000560000-0x0000000000576000-memory.dmp
    Filesize

    88KB

    Download
  • memory/1080-133-0x00000000053F0000-0x0000000005994000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/1080-134-0x0000000004F20000-0x0000000004FB2000-memory.dmp
    Filesize

    584KB

    Download
  • memory/1080-137-0x0000000000B00000-0x0000000000B0A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2676-135-0x0000000000000000-mapping.dmp
    Download
  • memory/4696-136-0x0000000000000000-mapping.dmp
    Download