Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-09-2024 11:33

General

  • Target

    klianghaxx.msi

  • Size

    35.7MB

  • MD5

    b50224d2998918a46f53631e95d0c82a

  • SHA1

    b87a7ac613227efff93e5ee806587bdff1407561

  • SHA256

    4f47635b4eaa1e3e8eddf090b25af99a07dafc7b71d876cf533e8cf8437d62cb

  • SHA512

    35ace3df1e35e5b633184d78df5c8aa56f180ff55cc3d90304fdb720d9908325af36fb82151b5a7bbf175d2afbb140a13e5c4f9fea46e12a5719c5a8e8fcf1c8

  • SSDEEP

    786432:qkhIiFQmQPoasemFaut9MNGXQAXPrWDP7THYKuPQplTiE7Fym:b0m8oasgutuN9AXPrWDPvHduGTifm

Malware Config

Signatures

  • Detect PurpleFox Rootkit 2 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 2 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.

  • Drops file in Program Files directory 14 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 54 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 23 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\klianghaxx.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1016
  • 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:624
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1620
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B61328AB55250BAE2BDC7D226C46929F E Global\MSI0000
      2⤵
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of WriteProcessMemory
      PID:4284
      • C:\Program Files\UpgradeAdvisorSteadfast\RprxlqTjDBnm.exe
        "C:\Program Files\UpgradeAdvisorSteadfast\RprxlqTjDBnm.exe" x "C:\Program Files\UpgradeAdvisorSteadfast\WSycNbZGAgGoCikzCVpf" -o"C:\Program Files\UpgradeAdvisorSteadfast\" -pUdhsuLYAGzPmDseEvpqp -y
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4116
      • C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe
        "C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe" -number 175 -file file3 -mode mode3 -flag flag3
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:116
      • C:\Program Files\UpgradeAdvisorSteadfast\letsvpn.exe
        "C:\Program Files\UpgradeAdvisorSteadfast\letsvpn.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1288
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -inputformat none -ExecutionPolicy Bypass -Command "If ($env:PROCESSOR_ARCHITEW6432) { $env:PROCESSOR_ARCHITEW6432 } Else { $env:PROCESSOR_ARCHITECTURE }"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          PID:5024
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:3076
  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe
    "C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe" install
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    PID:5044
  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe
    "C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe" start
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    PID:4168
  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe
    "C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe"
    1⤵
    • Drops file in Program Files directory
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe
      "C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe" -number 297 -file file3 -mode mode3 -flag flag3
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3220
      • C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe
        "C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.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:1960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\e57e408.rbs

    Filesize

    7KB

    MD5

    c7ee1af71ab80310c68a1fef5eb002fe

    SHA1

    a5c9fab466e4f4824a98e6d4de4faea607375ab9

    SHA256

    821b8e8436bce5f09ec2a18b88a36efc4590ffcb27f859949c2d0175959b7d47

    SHA512

    0f7c0bda56156b071a422596261719fc527fe21031163a87e7120d75cad7ae6a0bdcd07564e0105ac7463191f5a8d89ea59bf19a63048e9e9f3c8d340c5f78f9

  • C:\Program Files\UpgradeAdvisorSteadfast\RprxlqTjDBnm.exe

    Filesize

    574KB

    MD5

    42badc1d2f03a8b1e4875740d3d49336

    SHA1

    cee178da1fb05f99af7a3547093122893bd1eb46

    SHA256

    c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

    SHA512

    6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

  • C:\Program Files\UpgradeAdvisorSteadfast\WSycNbZGAgGoCikzCVpf

    Filesize

    1.7MB

    MD5

    8f3fb6888ea0fa0b469d24ba3c94c7a0

    SHA1

    07ce9c008e0696f7f199870abcf8f7fce2d44226

    SHA256

    2fb227f2e083aa82be21d4d1c9d7cdbf6fb0f56004652f836cf444f7e3f88fe5

    SHA512

    a3703356ed830834fc0e29fde22e2018a6c71e098a1c2aadfb7beab42e587dfe8db243848e7b8b2ff4f962d89e9de450a9b0505dd27bf19564b619af72ddbc96

  • C:\Program Files\UpgradeAdvisorSteadfast\eCIiCJQGvW16.exe

    Filesize

    2.9MB

    MD5

    0e9a77152636348ef1df5bc112457d62

    SHA1

    759eb71dfed78cb9718e1c8f3dc719f6d3d4b4bb

    SHA256

    a001a3b643a7d3aafe82ac9e1f49e576d408bad20993844b6051353456127b89

    SHA512

    ce439b31e4540bbad086ab9508a0817909a508ef8a7bdc27568c52758fd0a0f7465fb93850bd8238cb1d24fe9c38b76276454e093faa3671c574605aa97326e6

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.exe

    Filesize

    832KB

    MD5

    d305d506c0095df8af223ac7d91ca327

    SHA1

    679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a

    SHA256

    923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66

    SHA512

    94d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.wrapper.log

    Filesize

    260B

    MD5

    ab1e2eb4da94535d1c476a1df16257a3

    SHA1

    2923163ce39c3e2621f86edb0fe887d443a1c195

    SHA256

    119aed472f3310c33ee6a3c33757fc790c87eb8913695c96bc1cac7a6053dfee

    SHA512

    0f4b9693ecfbb1dd9ab6042b7e3845e2e8b92434d991cbc4cc922e96ddbaabc8bd6085656819bbc0ca288a15df49fd8ceb1ba8b82b49ae790dbce4143c9a53a2

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.wrapper.log

    Filesize

    413B

    MD5

    cfa9e371b168d3f73448a892270278c1

    SHA1

    bd2cf8cd7610a15f022dd6b0d9272921ead94dc3

    SHA256

    2ac12b8a4bb63bb7387945c078ad0b7d18454a09b26bc56d758439daf32feb60

    SHA512

    261c76ae077e4b0cc53f966e3c3870372232a55722d3d62107c267e8a0b0484b4f17645e8d0d1b9643bdf572e9fb4095611faf625f3cc05b4f3a8a0b6915a005

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.wrapper.log

    Filesize

    576B

    MD5

    283845c557143810692f667b91b79b74

    SHA1

    3b34bbf1e34a5c9e2d037cd371b388a6f6fa5bd8

    SHA256

    cfe513ac6f2df54474cf913a16e117d899fd37525db37c88046dce648137d304

    SHA512

    315281b033a49ca4a93d318e9ca05d65d551a6150fd101d2212a4e711b687d9285af2240cc3ad8cdfbc17c58d3b59f855e245ec8a0262bb117fefefa7e6fb07b

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.wrapper.log

    Filesize

    724B

    MD5

    e5da157ce63b7e6de874f4d293e36b41

    SHA1

    10456ec96277453d72333defea450773991291c4

    SHA256

    fada21b8990aeb271175de9394dad83a2e07aa1060cf9dd4ef82091859d2f286

    SHA512

    e940149e60b1d26e07474911495f0adf8b79e9911b58b4291a3b30490a100e94505f58617382989639e07717aa7b61fee74e18c0dd69b9d763a957f9d88f2ee9

  • C:\Program Files\UpgradeAdvisorSteadfast\gLvRGFqwFJmB.xml

    Filesize

    435B

    MD5

    8ac72a64aaff5fb5f8ab55bbc9cd9c27

    SHA1

    46f8ec71afc049929370966038949428f29a05d1

    SHA256

    511073d20638765d59fdb70fd2de9ae3a49528c06b91ffc1689a4a4e03e5dc22

    SHA512

    5d479a9d784c8d32709ac441774b9b45cd7e11570681fbf71a300bb3930430028eb2c2e84067d2bac545d3781550e71612ff98d924e06a9259419b92fa25f2d5

  • C:\Program Files\UpgradeAdvisorSteadfast\letsvpn.exe

    Filesize

    14.5MB

    MD5

    94f6bd702b7a2e17c45d16eaf7da0d64

    SHA1

    45f8c05851bcf16416e087253ce962b320e9db8a

    SHA256

    07f44325eab13b01d536a42e90a0247c6efecf23ccd4586309828aa814f5c776

    SHA512

    7ffc5183d3f1fb23e38c60d55724ab9e9e1e3832c9fb09296f0635f78d81477c6894c00a28e63096fa395e1c11cbeaa1f77f910f9ff9c1f1ecf0b857aa671b3d

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

    Filesize

    1KB

    MD5

    122cf3c4f3452a55a92edee78316e071

    SHA1

    f2caa36d483076c92d17224cf92e260516b3cbbf

    SHA256

    42f5774d1ee4cae5d7a4e83970da42bb17e61ae93c312247211b5ee3535662e0

    SHA512

    c98666fb86aaff6471c0a96f12f037b9a607579c5891c9d7ba8cd4e90506ca7aa5b5f6264081d25f703c88fb69d8e2cd87809d508e771770550d0c5d4d17d91c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yc1t5ce0.ioc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\nshF108.tmp\System.dll

    Filesize

    11KB

    MD5

    75ed96254fbf894e42058062b4b4f0d1

    SHA1

    996503f1383b49021eb3427bc28d13b5bbd11977

    SHA256

    a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

    SHA512

    58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

  • C:\Users\Admin\AppData\Local\Temp\nshF108.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    ca95c9da8cef7062813b989ab9486201

    SHA1

    c555af25df3de51aa18d487d47408d5245dba2d1

    SHA256

    feb6364375d0ab081e9cdf11271c40cb966af295c600903383b0730f0821c0be

    SHA512

    a30d94910204d1419c803dc12d90a9d22f63117e4709b1a131d8c4d5ead7e4121150e2c8b004a546b33c40c294df0a74567013001f55f37147d86bb847d7bbc9

  • C:\Users\Admin\AppData\Local\Temp\nshF108.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    3d366250fcf8b755fce575c75f8c79e4

    SHA1

    2ebac7df78154738d41aac8e27d7a0e482845c57

    SHA256

    8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6

    SHA512

    67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094

  • C:\Windows\Installer\e57e407.msi

    Filesize

    35.7MB

    MD5

    b50224d2998918a46f53631e95d0c82a

    SHA1

    b87a7ac613227efff93e5ee806587bdff1407561

    SHA256

    4f47635b4eaa1e3e8eddf090b25af99a07dafc7b71d876cf533e8cf8437d62cb

    SHA512

    35ace3df1e35e5b633184d78df5c8aa56f180ff55cc3d90304fdb720d9908325af36fb82151b5a7bbf175d2afbb140a13e5c4f9fea46e12a5719c5a8e8fcf1c8

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

    Filesize

    23.7MB

    MD5

    10561a9948246448e3bee933c56ae39a

    SHA1

    9f3e8313409979234852b1764fb003c233ce9f0f

    SHA256

    51e5b700c3904ad61548ba0ae2f568026d276055adc7b9abc3c4a4bad3609272

    SHA512

    da7c5bfe4ddcf9c734a324ffed9efc898dc3fc6cd681249cb94d07bf1cb2b86987fe500c3e52976f9da446d0c32ea65efdbde0e1e0339f6de71d76f50c10be2b

  • \??\Volume{83bffa96-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{ecbab06f-5268-41bd-90a4-558d7953c006}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    6fec36fab6126981209fc10794e8d7b9

    SHA1

    2dc7f9b45604657247b295333991ded042581e7e

    SHA256

    b1e1d8e35c4907c87074007f74ef78b91a7c1dea13cccf7a130fc6064005f95a

    SHA512

    de64fa4c0a60dbdefe144a24d310a5300f4b1c1b71d69d7272216ad85ceeab587c627f1f3f92e25eedc8a82aea4ac1b56fe5c63be5533653e6a9808d9b6ad024

  • memory/1960-108-0x000000002BC70000-0x000000002BE2A000-memory.dmp

    Filesize

    1.7MB

  • memory/1960-106-0x000000002BC70000-0x000000002BE2A000-memory.dmp

    Filesize

    1.7MB

  • memory/1960-105-0x000000002A050000-0x000000002A093000-memory.dmp

    Filesize

    268KB

  • memory/5024-66-0x0000000005D70000-0x0000000005DBC000-memory.dmp

    Filesize

    304KB

  • memory/5024-50-0x0000000004E20000-0x0000000005448000-memory.dmp

    Filesize

    6.2MB

  • memory/5024-49-0x00000000047B0000-0x00000000047E6000-memory.dmp

    Filesize

    216KB

  • memory/5024-51-0x0000000004D70000-0x0000000004D92000-memory.dmp

    Filesize

    136KB

  • memory/5024-53-0x00000000056B0000-0x0000000005716000-memory.dmp

    Filesize

    408KB

  • memory/5024-52-0x0000000005640000-0x00000000056A6000-memory.dmp

    Filesize

    408KB

  • memory/5024-65-0x0000000005D20000-0x0000000005D3E000-memory.dmp

    Filesize

    120KB

  • memory/5024-63-0x0000000005720000-0x0000000005A74000-memory.dmp

    Filesize

    3.3MB

  • memory/5044-67-0x0000000000E20000-0x0000000000EF6000-memory.dmp

    Filesize

    856KB