Overview

overview

10

Static

static

10

Solara.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    390s
  • max time network
    390s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2025, 14:34

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General

  • Target

    Solara.exe

  • Size

    72KB

  • MD5

    40fae76ad7eb67e5690cf09412155cb8

  • SHA1

    829a5b1b1a0ae2356e607605d8d8a8a7ea60108c

  • SHA256

    fcfd2661484f8051219cbf126a532bb383f1940cbfaf2477d016b0f25e0c5f9b

  • SHA512

    2131464302e83b3428d05bf717de10911de17b6abf217ef81f8b35795bed95c144d7498379bdda3ea162d664dcb936d1847d7cc481e568992b4459d07083176f

  • SSDEEP

    1536:0xZKBHG14rqH9p7ZKUBUVOhb6e7+bKn2b6l8Q/b+IOsOP6N:4WGirwDFS0hbV+bKcQD+IOsTN

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/FgmKAhUD

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

    trojanratxworm
  • Xworm family
    xworm
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

    execution
  • 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 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\Solara.exe
    "C:\Users\Admin\AppData\Local\Temp\Solara.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3728
    • 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\Solara.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3800
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Solara.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3048
    • 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\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1804
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1936
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4328
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1576
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3656
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:5016
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1056
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4624
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1544
  • C:\Users\Admin\AppData\Roaming\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • 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\CLR_v4.0\UsageLogs\svchost.exe.log
    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

    Download Submit

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

    944B

    MD5

    77d622bb1a5b250869a3238b9bc1402b

    SHA1

    d47f4003c2554b9dfc4c16f22460b331886b191b

    SHA256

    f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

    SHA512

    d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

    Download Submit

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

    944B

    MD5

    2524e72b0573fa94e9cb8089728a4b47

    SHA1

    3d5c4dfd6e7632153e687ee866f8ecc70730a0f1

    SHA256

    fafde5bec1db5e838e0a43603714686f9911b7aaa8d8ff0fe40f9496a7b38747

    SHA512

    99a7593a82353f792a58ea99196330aaa8c34ac2f616f0be4b4ca4f76388485866ba96dc62d9b8e7627c1df6a1f74111342307ba82400adce5adac68b47a6fa8

    Download Submit

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

    944B

    MD5

    10890cda4b6eab618e926c4118ab0647

    SHA1

    1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

    SHA256

    00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

    SHA512

    a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3rgt0rmq.k22.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk
    Filesize

    771B

    MD5

    a0807795220fea12e6c02c8d5856e550

    SHA1

    330f42ceb25d04fe806b4724f3338e0dd2d771d0

    SHA256

    d215bc2a3858fece227fefd1b0c9a32a019e1c4407a9ddc729e77fe9f89759dc

    SHA512

    c0a9b02f4346d640d2c2fcec6f08c3aa115dccbefc251a890ac999fca83dc7f6c4baad9115a43b566e0d3b457d81b4936685dbd7e8f1fad95076b9359f3c8a0b

    Download Submit

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

    72KB

    MD5

    40fae76ad7eb67e5690cf09412155cb8

    SHA1

    829a5b1b1a0ae2356e607605d8d8a8a7ea60108c

    SHA256

    fcfd2661484f8051219cbf126a532bb383f1940cbfaf2477d016b0f25e0c5f9b

    SHA512

    2131464302e83b3428d05bf717de10911de17b6abf217ef81f8b35795bed95c144d7498379bdda3ea162d664dcb936d1847d7cc481e568992b4459d07083176f

    Download Submit

  • memory/1576-66-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-64-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-65-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-68-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-70-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-67-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-60-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-59-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-58-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1576-69-0x0000020765390000-0x0000020765391000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3728-56-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3728-57-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3728-0-0x00007FFCBD543000-0x00007FFCBD545000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3728-1-0x0000000000050000-0x0000000000068000-memory.dmp

    Filesize

    96KB

    Download

  • memory/3800-17-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3800-14-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3800-13-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3800-12-0x00007FFCBD540000-0x00007FFCBE001000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3800-3-0x0000018D258A0000-0x0000018D258C2000-memory.dmp

    Filesize

    136KB

    Download