Overview

overview

10

Static

static

10

Solara.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    147s
  • 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, 16:54

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General

  • Target

    Solara.exe

  • Size

    44KB

  • MD5

    122fbe0d84957e8e5fa9385c12da3d0f

  • SHA1

    ff9729798bca408c4cdbf4f44a2a25b95a7fc163

  • SHA256

    68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743

  • SHA512

    9ef2f06d78d5722e61ef55ceea2e19c4b12b7c0c0e95097b90ff6d98e5d2208921742fb4c31af816d20366de087775d0eb67de7b9c532f29eff54e43690672a5

  • SSDEEP

    768:GNTRmetisWt2tKdouL3ZE9R9yFRPG9Xb6OOChLsGO6Mi5:GNTketz8npE92Fw9Xb6OOCVVO9i5

Score
10/10
xwormexecutionpersistencerattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

6vmX68wzVkGMx0vS

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/FgmKAhUD

aes.plain

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 3 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 14 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 behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5116
    • 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:1824
    • 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:4912
    • 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'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3180
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4792
    • 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"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1348
  • C:\Users\Admin\AppData\Roaming\svchost
    C:\Users\Admin\AppData\Roaming\svchost
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:888
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4452
  • C:\Users\Admin\AppData\Roaming\svchost
    C:\Users\Admin\AppData\Roaming\svchost
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4508
  • C:\Users\Admin\AppData\Roaming\svchost
    C:\Users\Admin\AppData\Roaming\svchost
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3104

Network

MITRE ATT&CK Enterprise v15

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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.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

    d28a889fd956d5cb3accfbaf1143eb6f

    SHA1

    157ba54b365341f8ff06707d996b3635da8446f7

    SHA256

    21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

    SHA512

    0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

    Download Submit

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

    944B

    MD5

    eb1ad317bd25b55b2bbdce8a28a74a94

    SHA1

    98a3978be4d10d62e7411946474579ee5bdc5ea6

    SHA256

    9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

    SHA512

    d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

    Download Submit

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

    944B

    MD5

    4920f7bec7cdb8ac44637a6af9d2fc6f

    SHA1

    d4c5e3c9397926ec9bdaccdd955e89f5138b1816

    SHA256

    8cc607eab702c5690ee5d64f5d34add46b7093c23751506dad728853a434a277

    SHA512

    321e8178ebd08d680c6d1af467ab73e3055af8c8bb06ee81b1af46bd6718e5a060c339da5a281028c2557ab8d85172921e10363ccd8d411aa0e75f62119838d7

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w1lutgyr.tyd.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

    747B

    MD5

    d0a5850a4b24aaa963b13e065961732c

    SHA1

    9f1b4447dd23d2359659c6c0e91745df8eac664d

    SHA256

    2019975cc363525559600708722288197b4bb40beae12e99dee498e6bbe09ce9

    SHA512

    1abd7571a2631adeda61904a8aa5e5c50f8c496372b917b454b985bf71ab1932d20348ce80c3fcf10b87acba6384dbd3f4a3b800237a999a5799ec3a40143307

    Download Submit

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

    44KB

    MD5

    122fbe0d84957e8e5fa9385c12da3d0f

    SHA1

    ff9729798bca408c4cdbf4f44a2a25b95a7fc163

    SHA256

    68a3a8d3147a285c2b76e64cbb0a3bb4803aa35a35ff9fb964512ba0cec68743

    SHA512

    9ef2f06d78d5722e61ef55ceea2e19c4b12b7c0c0e95097b90ff6d98e5d2208921742fb4c31af816d20366de087775d0eb67de7b9c532f29eff54e43690672a5

    Download Submit

  • memory/1824-7-0x0000018FA7300000-0x0000018FA7322000-memory.dmp

    Filesize

    136KB

    Download

  • memory/1824-17-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1824-14-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1824-13-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1824-12-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4452-72-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-73-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-68-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-61-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-62-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-63-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-67-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-69-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-70-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4452-71-0x0000012B7D2B0000-0x0000012B7D2B1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5116-0-0x00007FFC47FB3000-0x00007FFC47FB5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/5116-57-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5116-56-0x00007FFC47FB3000-0x00007FFC47FB5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/5116-55-0x00007FFC47FB0000-0x00007FFC48A71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/5116-1-0x0000000000D40000-0x0000000000D52000-memory.dmp

    Filesize

    72KB

    Download