Overview

overview

10

Static

static

1

Uarngd.exe

windows7-x64

10

Uarngd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    46s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03-02-2023 15:18

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General

  • Target

    Uarngd.exe

  • Size

    7KB

  • MD5

    51b95537e2f88be4e97ca30fd565c6a2

  • SHA1

    3c19c4f72b3737b8c365462b578e46a681990470

  • SHA256

    3b6d60b69e3438ca5aaad8edf8b87f8c39f72803aa3c90a929aff5239d998333

  • SHA512

    d177cfdbec6511d7fce4911b0e2b4d3581bb625d02df2ced2ab3cf774873cae1748f796fa939b269c1d0c267a63f89d82c51784c183c067cd9f9c6a0f89e9c39

  • SSDEEP

    96:0+10kTSeg3MLEmVJsdtldCDxLGP8ZY7ZMtblNb6k2wImQgJtXstMtzNt:0+nWeg3SXJ45C5GPGldHbIfgzXEMH

Score
10/10
purecryptersnakekeyloggercollectiondownloaderkeyloggerloaderpersistencespywarestealer

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5497972920:AAHqqS9EfkxnwYz3pQtCWef33URevfy5tRk/sendMessage?chat_id=1653988628

Signatures

  • Detect PureCrypter injector 1 IoCs
    loader
  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

    loaderdownloaderpurecrypter
  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

    stealerkeyloggersnakekeylogger
  • Snake Keylogger payload 6 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

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

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Uarngd.exe
    "C:\Users\Admin\AppData\Local\Temp\Uarngd.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:596
    • C:\Users\Admin\AppData\Local\Temp\Uarngd.exe
      C:\Users\Admin\AppData\Local\Temp\Uarngd.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1544

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

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/596-59-0x000000006F9E0000-0x000000006FF8B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/596-61-0x000000006F9E0000-0x000000006FF8B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/596-60-0x000000006F9E0000-0x000000006FF8B000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/596-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1544-63-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-64-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-66-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-68-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-69-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-70-0x00000000004207DE-mapping.dmp
    Download
  • memory/1544-72-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/1544-74-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

    Download
  • memory/2024-56-0x00000000062B0000-0x0000000006520000-memory.dmp
    Filesize

    2.4MB

    Download
  • memory/2024-55-0x00000000760B1000-0x00000000760B3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2024-62-0x0000000004EE0000-0x0000000004F2A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/2024-54-0x00000000013B0000-0x00000000013B8000-memory.dmp
    Filesize

    32KB

    Download