Overview

overview

10

Static

static

6aa8127348...1b.exe

windows7_x64

10

6aa8127348...1b.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 12:46

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General

  • Target

    6aa81273480d8316e91582e10a203628d3944b8ec50aaf9450b6cc9ead32081b.exe

  • Size

    626KB

  • MD5

    9e10b8240003873cfe523f78ec5f693d

  • SHA1

    a902ef719ebcd1e7eca41d41f8985bea7f345406

  • SHA256

    6aa81273480d8316e91582e10a203628d3944b8ec50aaf9450b6cc9ead32081b

  • SHA512

    bdcf32ad849638cdc4b09b7c0af5738676271e61391e0b86bf709b975aea2958b8015b4fb661b6917412cbd27fe1b2753d6fc487983e1acadbc307f7784c488c

Score
10/10
evasionpersistencespywarestealertrojan

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
    persistence
  • Modifies visibility of file extensions in Explorer 2 TTPs
    evasion
  • UAC bypass 3 TTPs
    evasiontrojan
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 IoCs
    persistence
  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6aa81273480d8316e91582e10a203628d3944b8ec50aaf9450b6cc9ead32081b.exe
    "C:\Users\Admin\AppData\Local\Temp\6aa81273480d8316e91582e10a203628d3944b8ec50aaf9450b6cc9ead32081b.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Users\Admin\xOYUUMAA\nOMIkYkQ.exe
      "C:\Users\Admin\xOYUUMAA\nOMIkYkQ.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      PID:1908
    • C:\ProgramData\LYMwkwww\AsYEUgAY.exe
      "C:\ProgramData\LYMwkwww\AsYEUgAY.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:2572
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\cver.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3564
      • C:\Users\Admin\AppData\Local\Temp\cver.exe
        C:\Users\Admin\AppData\Local\Temp\cver.exe
        3⤵
        • Executes dropped EXE
        PID:3848
    • C:\Windows\SysWOW64\reg.exe
      reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v HideFileExt /t REG_DWORD /d 1
      2⤵
      • Modifies registry key
      PID:8
    • C:\Windows\SysWOW64\reg.exe
      reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /f /v Hidden /t REG_DWORD /d 2
      2⤵
      • Modifies registry key
      PID:4068
    • C:\Windows\SysWOW64\reg.exe
      reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /d 0 /t REG_DWORD /f
      2⤵
      • Modifies registry key
      PID:1112
  • C:\ProgramData\XYwAwkIE\dswUEwQA.exe
    C:\ProgramData\XYwAwkIE\dswUEwQA.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Drops file in System32 directory
    PID:3992

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

5
T1112

Hidden Files and Directories

1
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\ProgramData\LYMwkwww\AsYEUgAY.exe
    MD5

    79d79df6ab1126b77edaa346b42e8fef

    SHA1

    5da75a4a3fcbf09e2487193e4c853720cf09fb2a

    SHA256

    5c6e3d8046c8e767c85e1adbbed2b8443b94857adef2d6129b2c783fde3d428f

    SHA512

    c61a5c5f626abe6d835dd11d8705152e325aaa379398a370d507b94d7ac67be36b88d806a5c24f44dc8528cc5541e80bab27c248a9cb5a9f99efeb75a8936bbc

    Download Submit
  • C:\ProgramData\LYMwkwww\AsYEUgAY.exe
    MD5

    79d79df6ab1126b77edaa346b42e8fef

    SHA1

    5da75a4a3fcbf09e2487193e4c853720cf09fb2a

    SHA256

    5c6e3d8046c8e767c85e1adbbed2b8443b94857adef2d6129b2c783fde3d428f

    SHA512

    c61a5c5f626abe6d835dd11d8705152e325aaa379398a370d507b94d7ac67be36b88d806a5c24f44dc8528cc5541e80bab27c248a9cb5a9f99efeb75a8936bbc

    Download Submit
  • C:\ProgramData\XYwAwkIE\dswUEwQA.exe
    MD5

    59593c16a83b019f962ce4bd3d931a8a

    SHA1

    493d263f87e1070dce4e84e061e3f873007e73ce

    SHA256

    9f2bcfc6975e343679608bd01eaf7efa454384bde11e4ee2b26e5d92f1e96653

    SHA512

    690f53ac2866e4267ab786b23d613810ec846683fac73b92af83398ec83eb57aaa4c6082c5fb7bdfe71bf07ab479dfd3c6e25161728a0bdb377740c0c4141b3e

    Download Submit
  • C:\ProgramData\XYwAwkIE\dswUEwQA.exe
    MD5

    59593c16a83b019f962ce4bd3d931a8a

    SHA1

    493d263f87e1070dce4e84e061e3f873007e73ce

    SHA256

    9f2bcfc6975e343679608bd01eaf7efa454384bde11e4ee2b26e5d92f1e96653

    SHA512

    690f53ac2866e4267ab786b23d613810ec846683fac73b92af83398ec83eb57aaa4c6082c5fb7bdfe71bf07ab479dfd3c6e25161728a0bdb377740c0c4141b3e

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\cver.exe
    MD5

    0d0b992d2d4b7619f49ee0458d3469b1

    SHA1

    5d9835b408a231902654d516b48843890f4130e5

    SHA256

    55c3f3f02b48a1e69d8b58d195c53f2d604acd890d09d7310272dcd289cf2d94

    SHA512

    8435b079d408689fabb3d8713c2d4b86f85f1b9bc4bc79427ee0ae069fafd23a703d71d481a1515bb98a31b90171a75a97c1ec6a9df63170a4961940e04494b7

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\cver.exe
    MD5

    0d0b992d2d4b7619f49ee0458d3469b1

    SHA1

    5d9835b408a231902654d516b48843890f4130e5

    SHA256

    55c3f3f02b48a1e69d8b58d195c53f2d604acd890d09d7310272dcd289cf2d94

    SHA512

    8435b079d408689fabb3d8713c2d4b86f85f1b9bc4bc79427ee0ae069fafd23a703d71d481a1515bb98a31b90171a75a97c1ec6a9df63170a4961940e04494b7

    Download Submit
  • C:\Users\Admin\xOYUUMAA\nOMIkYkQ.exe
    MD5

    12e12f0622279e2520cdebe2c6ed8311

    SHA1

    8df9696311037cc2a5e291a4cc40d4339e2f18d7

    SHA256

    bfd37e45734183db8f76bd48b2f269d17fdba1b21331fa20a66266c132c8cf88

    SHA512

    f81875c4230e3df4ba8cb8ce1b49029463e2143a8ed81b4a71c2ef1351d84eb02827f5c75a59846d5896e662aa286f13ceb91278fcf5713faf68bf6c47559488

    Download Submit
  • C:\Users\Admin\xOYUUMAA\nOMIkYkQ.exe
    MD5

    12e12f0622279e2520cdebe2c6ed8311

    SHA1

    8df9696311037cc2a5e291a4cc40d4339e2f18d7

    SHA256

    bfd37e45734183db8f76bd48b2f269d17fdba1b21331fa20a66266c132c8cf88

    SHA512

    f81875c4230e3df4ba8cb8ce1b49029463e2143a8ed81b4a71c2ef1351d84eb02827f5c75a59846d5896e662aa286f13ceb91278fcf5713faf68bf6c47559488

    Download Submit
  • memory/8-123-0x0000000000000000-mapping.dmp
    Download
  • memory/1112-125-0x0000000000000000-mapping.dmp
    Download
  • memory/1908-114-0x0000000000000000-mapping.dmp
    Download
  • memory/2572-117-0x0000000000000000-mapping.dmp
    Download
  • memory/3564-122-0x0000000000000000-mapping.dmp
    Download
  • memory/3848-126-0x0000000000000000-mapping.dmp
    Download
  • memory/3848-129-0x0000000000F20000-0x0000000000F21000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3848-131-0x000000001BB00000-0x000000001BB02000-memory.dmp
    Filesize

    8KB

    Download
  • memory/4068-124-0x0000000000000000-mapping.dmp
    Download