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Overview

overview

10

Static

static

10

Loader.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/07/2024, 23:22

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General

  • Target

    Loader.exe

  • Size

    59KB

  • MD5

    07ac8571846ca0cc9f6fcdbe1d000be2

  • SHA1

    3cbe16f7d24d40b590f97b1999c64c5bb889e8c6

  • SHA256

    2a3bcea7cadf94c65d4462b2297285078f5232e84267dfa641cb23475ffdb1b5

  • SHA512

    56413d14e5ee2e615c19232d93047c9d2cc422e083eda0f9f5ae1dc04798989e73d5ad80e06a7dda166deb0177206fb1ed045773bba3975667c12409d67d1e7e

  • SSDEEP

    1536:oG5dn7tpWah7AuW7ttyCoTf1AZbr4w0eb6giOJ5LX:lD5pHJdOttyxuZbrp2OJ9X

Score
10/10
mercurialgrabberxwormevasionexecutionpersistenceratspywarestealertrojan

Malware Config

Extracted

Family

xworm

C2

unique-emotions.gl.at.ply.gg:54742

wiz.bounceme.net:6000
Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/1256033718615801999/30uWN_aNeK535vYxz4VbBzXef1VOIVGrPIFsTv-L91_8YPN5UWyf6TKGfk-GmCmwftJo

Signatures

  • Detect Xworm Payload 3 IoCs
  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

    stealermercurialgrabber
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • 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
  • Looks up external IP address via web service 3 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loader.exe
    "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Loader.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3156
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Loader.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4032
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Loader.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4308
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Loader" /tr "C:\Users\Admin\AppData\Roaming\Loader.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4204
  • C:\Users\Admin\AppData\Roaming\Loader.exe
    C:\Users\Admin\AppData\Roaming\Loader.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3736
  • C:\Users\Admin\AppData\Roaming\Loader.exe
    C:\Users\Admin\AppData\Roaming\Loader.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1796
  • C:\Users\Admin\AppData\Roaming\Loader.exe
    C:\Users\Admin\AppData\Roaming\Loader.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

9
T1012

System Information Discovery

7
T1082

Virtualization/Sandbox Evasion

2
T1497

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Loader.exe.log
    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    944B

    MD5

    6d3e9c29fe44e90aae6ed30ccf799ca8

    SHA1

    c7974ef72264bbdf13a2793ccf1aed11bc565dce

    SHA256

    2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

    SHA512

    60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    Filesize

    944B

    MD5

    15dde0683cd1ca19785d7262f554ba93

    SHA1

    d039c577e438546d10ac64837b05da480d06bf69

    SHA256

    d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

    SHA512

    57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wnxhqlzl.5tw.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Loader.exe
    Filesize

    59KB

    MD5

    07ac8571846ca0cc9f6fcdbe1d000be2

    SHA1

    3cbe16f7d24d40b590f97b1999c64c5bb889e8c6

    SHA256

    2a3bcea7cadf94c65d4462b2297285078f5232e84267dfa641cb23475ffdb1b5

    SHA512

    56413d14e5ee2e615c19232d93047c9d2cc422e083eda0f9f5ae1dc04798989e73d5ad80e06a7dda166deb0177206fb1ed045773bba3975667c12409d67d1e7e

    Download Submit

  • memory/1008-49-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1008-0-0x00000000001A0000-0x00000000001B6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/1008-50-0x000000001C010000-0x000000001C01E000-memory.dmp

    Filesize

    56KB

    Download

  • memory/1008-53-0x00007FFCAC8A3000-0x00007FFCAC8A5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1008-55-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1008-56-0x0000000000AC0000-0x0000000000AD0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1008-1-0x00007FFCAC8A3000-0x00007FFCAC8A5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3156-17-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3156-14-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3156-13-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3156-12-0x00007FFCAC8A0000-0x00007FFCAD361000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3156-4-0x0000020C521D0000-0x0000020C521F2000-memory.dmp

    Filesize

    136KB

    Download