Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-09-2024 09:38

General

  • Target

    wpsupdate .msi

  • Size

    18.0MB

  • MD5

    a73709d320e1160a965987bd3298b0bc

  • SHA1

    2b1942cad548a048f62eb643573baf671696c5ea

  • SHA256

    d5d245b5e9d6b56778fcad5bd8154779074e891df0455ae8cc77e14595f0df8c

  • SHA512

    78844102b9d83f5f8f3dc3c1b83217bb0a6a69579168dca0e4740afd1f9f4e8864b9203570b031e9ce47a8f9a2a6db98b558634708fd828727365f0271a5f686

  • SSDEEP

    393216:0vd1NDtHWaIhF5AfrpW4+SRxqwIxgFU1elj6iY9Q4mG3WX0X9Jnbx:0fWaIFaFWdqjle1xB99kC/nbx

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 5 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 8 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 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.

  • Modifies data under HKEY_USERS 28 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\wpsupdate .msi"
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3620
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4088
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3756
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C252025A6AB4A77AE9600E0DFA9857E8 E Global\MSI0000
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of WriteProcessMemory
      PID:4632
      • C:\Program Files\OrganizeSupporterNimble\YElwbdcCOAiT.exe
        "C:\Program Files\OrganizeSupporterNimble\YElwbdcCOAiT.exe" x "C:\Program Files\OrganizeSupporterNimble\qRnXMHAQiKBugDENYhOR" -o"C:\Program Files\OrganizeSupporterNimble\" -ptLyXGitilIeFgXMurmJK -y
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3468
      • C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe
        "C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe" -number 143 -file file3 -mode mode3 -flag flag3
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:4968
      • C:\Program Files\OrganizeSupporterNimble\wpsupdate.exe
        "C:\Program Files\OrganizeSupporterNimble\wpsupdate.exe"
        3⤵
        • Writes to the Master Boot Record (MBR)
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3080
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4200
  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe
    "C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe" install
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    PID:1180
  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe
    "C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe" start
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    PID:1540
  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe
    "C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe"
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe
      "C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe" -number 174 -file file3 -mode mode3 -flag flag3
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe
        "C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe" -number 362 -file file3 -mode mode3 -flag flag3
        3⤵
        • Enumerates connected drives
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\e57eea7.rbs

    Filesize

    7KB

    MD5

    5dd6a41a74da877eb76656c14a2746e7

    SHA1

    b1096adac1b476787a839c37f9f1ff0508cddd8a

    SHA256

    fd4981a50ddfd10b2e2a1e781d0ac4120985d6c5f912e2a17088d93ded1daab0

    SHA512

    93d6fb040826b493cb1f34c6d95e97939b612a945c222f5a3e33e99c1ea9d4b090fb902a534997bd1a5fe88a0aaf0ed99a7233c4e52ec0082bbb2dc44fc949ae

  • C:\Program Files\OrganizeSupporterNimble\TpuaDVwAtO28.exe

    Filesize

    3.1MB

    MD5

    cab83f4897ba305ccf1b3811d0d46b46

    SHA1

    f9b0a859ccfd545ca4794d2e37f0fe92e7469c88

    SHA256

    45265ec03d03272fbda8eca896bdc2f72f8ac0ab862d41f7a97cd823525c0a9c

    SHA512

    e018957a52075c203d48a59b2e049ed0d6980fefe467bd1b49bdd2a9b7aa5efb2d0d84a2b9e24f9b3ce680d424da137a2a7c3bc14f060960fba4cfbd900431ac

  • C:\Program Files\OrganizeSupporterNimble\YElwbdcCOAiT.exe

    Filesize

    574KB

    MD5

    42badc1d2f03a8b1e4875740d3d49336

    SHA1

    cee178da1fb05f99af7a3547093122893bd1eb46

    SHA256

    c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

    SHA512

    6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.exe

    Filesize

    832KB

    MD5

    d305d506c0095df8af223ac7d91ca327

    SHA1

    679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a

    SHA256

    923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66

    SHA512

    94d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.wrapper.log

    Filesize

    270B

    MD5

    e7ea15ae87a9c79e0cf9fac288713ccf

    SHA1

    9f395682a7dff829ee3eb22bc512fddc4126bdd8

    SHA256

    13dc04e409601893825f09001a8dba9a0710a8d0c3f3eeb27f84c8ae2f54e4a3

    SHA512

    36a9b6a7f66fb63f983c85aa8de43cc3addfd05ef61ef6a0a132a1c05b6c1a7ba65bd31c62011f287e8a6bc3937d658a7fe2b467ec064e084dd3bedcb23974cb

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.wrapper.log

    Filesize

    428B

    MD5

    b6141e3187b9171d5fb7dc8b5d434a14

    SHA1

    ba9f6054f7357fac82b7219cd1028e272b743485

    SHA256

    06d27082ce2753fbfa677c9474a341336b0619606375f69655672c0facec6c8c

    SHA512

    0deca6c4370ee2c693807a36d77cec21ebe08612c20e68eba1f8606f083916d66b8d96222cf5e7e621bb378045caef283dfc927c9bb120f383e65e55146d75b9

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.wrapper.log

    Filesize

    596B

    MD5

    245d77dcb6dc035274ad6e351b9d914c

    SHA1

    cbccda24e4ba544d7caa6e4a41df1efff76dc58f

    SHA256

    3def549782a55e608f81ad867ecd88b01847f9e0ebb5a7e75a72a16c3f6185b2

    SHA512

    0d7032f3e767e0ce6c1943036d08937a4fba6159e027a907c4d5911113ec42a2443aedc1b3a125b9993405a6342532f31188fae1e42173459c334a0d1dfeb1cb

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.wrapper.log

    Filesize

    744B

    MD5

    e4ffaa099922ce2c56edad4ae8e267bf

    SHA1

    02eb527072d00235624b6c7a76201b4fd791e7a7

    SHA256

    941a3b9391263d4ffa5924b294df6c77cea51233f23e229380df4373b2f5916f

    SHA512

    7ff457c32c23b25cb133cb368e42eb515dd65b159a20f651571018989b11697db07513f539747f59121d1d26e801184d4abdc99ce1e594f4a64948affd495a19

  • C:\Program Files\OrganizeSupporterNimble\YoctSidXXbav.xml

    Filesize

    445B

    MD5

    92abd924fa27bb08e129a8bb0ac23fee

    SHA1

    fdb569c5d01e64f7c5a786d57511c0853d196aa6

    SHA256

    7ccf598d801e67c722bcdb422c1abeb6278c0293964c13b49df9cf8ac240490c

    SHA512

    1ae6b8d8f61c8db656ad231d94a429bddb63aa5228fb0b1003b3dc878fd66a7ce90792cfab64f3cd24c9e3951d13174fa28a82c179c8123ab4c3e01c1cffe653

  • C:\Program Files\OrganizeSupporterNimble\qRnXMHAQiKBugDENYhOR

    Filesize

    1.9MB

    MD5

    b40f2629f6045761ca8acf21ec4341e7

    SHA1

    082326d152d2d13a5981ad9f4c3cf7906ec842bc

    SHA256

    2699edad6ae5d99914c94f54075ff20ffce1a6f13e83d4f2e807f614466fd28f

    SHA512

    d70d54d21bd4eb69a9748ca48f246dac236d06996da792818d188ae3a55a2f060a6fbb4421e27fdcf8aa7fd37f60951ef073d79fee1be6bac90d7e4d89dcdacc

  • C:\Program Files\OrganizeSupporterNimble\wpsupdate.exe

    Filesize

    6.0MB

    MD5

    57dadd6a929f64c2b1efe2d52c1c4985

    SHA1

    962cb227f81f885f23826c3e040aa9dbc97659cf

    SHA256

    996b5d59cce7955b4374bd00d83c422d3a1d9ffebba59c66074c37ab28cfaeb5

    SHA512

    3f64c35e72698ea6a7e708a4367277f3ab62c27f0652e0c55bab6e02239ee37c4f0a21503c0688301fb77bbf8e59e3c5c8aa2df8d62a4ab8a9b9cdf6f0a775cf

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

    Filesize

    1KB

    MD5

    122cf3c4f3452a55a92edee78316e071

    SHA1

    f2caa36d483076c92d17224cf92e260516b3cbbf

    SHA256

    42f5774d1ee4cae5d7a4e83970da42bb17e61ae93c312247211b5ee3535662e0

    SHA512

    c98666fb86aaff6471c0a96f12f037b9a607579c5891c9d7ba8cd4e90506ca7aa5b5f6264081d25f703c88fb69d8e2cd87809d508e771770550d0c5d4d17d91c

  • C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\update\wpsupdate_2024_09_20.log

    Filesize

    2KB

    MD5

    7fcd33c971f5b64a2b1a2fec152b5f39

    SHA1

    8f8bce7a920516c829b5e999fd9416cb359ac8e0

    SHA256

    9abe530783c25e87a8f0d5183e144fd1d033c52e08d2239589277c16974e0afe

    SHA512

    cc940ee35bfef40d755314a524f1ee430496d6cb0c09cc1c813fdf62a27d06e7199696d23b74547901034e1bdc8ae506142bdccd743a757f4e99a12bf748afa0

  • C:\Windows\Installer\e57eea6.msi

    Filesize

    18.0MB

    MD5

    a73709d320e1160a965987bd3298b0bc

    SHA1

    2b1942cad548a048f62eb643573baf671696c5ea

    SHA256

    d5d245b5e9d6b56778fcad5bd8154779074e891df0455ae8cc77e14595f0df8c

    SHA512

    78844102b9d83f5f8f3dc3c1b83217bb0a6a69579168dca0e4740afd1f9f4e8864b9203570b031e9ce47a8f9a2a6db98b558634708fd828727365f0271a5f686

  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

    Filesize

    23.7MB

    MD5

    ab934b6af21ca6261ee1ad8c09cc40ed

    SHA1

    44581cccc6fb3bf28a5ef9cba72d84b9564b098e

    SHA256

    8d30260d99eaf79b0bb772c7ee0fa21a04f57a8c9917b7dd674ec8745cf16185

    SHA512

    cb322c018bd69c6267ea83efe670b58d12eef8e949233a221f39f27fc0b5afa5a5b4cb8e2d7ab6749edc0f28dc599e00daf7eb72cc5deab1daa61fffaa147e97

  • \??\Volume{f1c94fa5-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{77344e16-37ca-45cd-868b-487f15cad1d8}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    ced68b05020a501fe5ad0e2beb29175a

    SHA1

    60892682bb28671f6360b2163d1bfe8af7bd6f08

    SHA256

    820e30454e2db2ddf72ecd696d1587f484f2d103fb8bdcdcd00e0dbb36e84df0

    SHA512

    8d361959519be15a26ab78e5e78dd3227d46f11e129e97f37486cb24f103e77f82676840f42433104e21772c4ed136293daf929a66cdf211345532775d8f7aa1

  • memory/1180-46-0x0000000000840000-0x0000000000916000-memory.dmp

    Filesize

    856KB

  • memory/1476-74-0x000000002C130000-0x000000002C2EB000-memory.dmp

    Filesize

    1.7MB

  • memory/1476-76-0x000000002C130000-0x000000002C2EB000-memory.dmp

    Filesize

    1.7MB

  • memory/1476-92-0x000000002C130000-0x000000002C2EB000-memory.dmp

    Filesize

    1.7MB

  • memory/1476-94-0x000000002C130000-0x000000002C2EB000-memory.dmp

    Filesize

    1.7MB

  • memory/1476-96-0x000000002C130000-0x000000002C2EB000-memory.dmp

    Filesize

    1.7MB

  • memory/4968-39-0x0000000009BD0000-0x0000000009BFA000-memory.dmp

    Filesize

    168KB