Resubmissions

29-10-2024 18:03

241029-wnd2aaxgmq 10

06-10-2024 12:18

241006-pgxrgstckn 10

Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-10-2024 12:18

General

  • Target

    94200b3b4792c019ebe7bcfd16573fdedf385369e41309d82958568078e90c43.msi

  • Size

    28.7MB

  • MD5

    bffddb889b7089cc6af3b9d9efb3c89d

  • SHA1

    977fc679569271849068e704a53c57b09009f414

  • SHA256

    94200b3b4792c019ebe7bcfd16573fdedf385369e41309d82958568078e90c43

  • SHA512

    0c3d0db3b8d0c5a071cc3a140695d8ea1b1600c36add6a4c36e24effd9d4dc579ce6953386cc624406c8fb9d6ba436b7082a5e675799d3f860fd0df6a5946e93

  • SSDEEP

    786432:tQ05JQsMXv0z+OEoBvTT1A7IXA5hPP4WhYw70FDDV:e0Tif06OXrT1AGw70FD5

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 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\94200b3b4792c019ebe7bcfd16573fdedf385369e41309d82958568078e90c43.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2292
  • 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:2316
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding 86FCAAB220DB81B154A3382EC933F542 M Global\MSI0000
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2476
      • C:\Program Files\ImproveDefenderResilient\OoRjJglzLJCL.exe
        "C:\Program Files\ImproveDefenderResilient\OoRjJglzLJCL.exe" x "C:\Program Files\ImproveDefenderResilient\jXdmemDIXVZlyRJvLnMc" -o"C:\Program Files\ImproveDefenderResilient\" -pBWkOspNCEXRAXyVSBPgs -y
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1200
      • C:\Program Files\ImproveDefenderResilient\ojZEoSUznz17.exe
        "C:\Program Files\ImproveDefenderResilient\ojZEoSUznz17.exe" -number 264 -file file3 -mode mode3 -flag flag3
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2352
      • C:\Program Files\ImproveDefenderResilient\ChromeSetup(1).exe
        "C:\Program Files\ImproveDefenderResilient\ChromeSetup(1).exe"
        3⤵
        • Executes dropped EXE
        PID:2688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2564
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000004C8" "00000000000003D4"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f76d8f3.rbs

    Filesize

    7KB

    MD5

    6e5768d8dbbef00f08b9689d72ef9996

    SHA1

    7144cb8aaaa4b313536c82592acd47771840a81a

    SHA256

    082be9027b949d819c92b707bcf1718c828287eeba6275e606964d39efe29ad6

    SHA512

    292f15efebed6d5cd08c39a1fc553f3486833c5bc45bebeb8478485428bad578e6ad783895ca688f17211a713783f4a5f9b5bf36e53bae81b3073dcc0724f312

  • C:\Program Files\ImproveDefenderResilient\ChromeSetup(1).exe

    Filesize

    8.5MB

    MD5

    5adff4313fbd074df44b4eb5b7893c5e

    SHA1

    d27388ef6cf34d40e0e7666f6381fcc5bbafa0f7

    SHA256

    d0c7a4390bdd6b442b96fc76f8a38f7b756ba2c16752ea259844420161865cae

    SHA512

    f5d639922b91878cf83d97563288a3aa4cba94db3ad5e8ac11d24ef7c44b019383a4414aeba6171b4c7bfa83ea1eafc1231cc9233e3b82b5ca7dc0b3ffacbf60

  • C:\Program Files\ImproveDefenderResilient\OoRjJglzLJCL.exe

    Filesize

    577KB

    MD5

    11fa744ebf6a17d7dd3c58dc2603046d

    SHA1

    d99de792fd08db53bb552cd28f0080137274f897

    SHA256

    1b16c41ae39b679384b06f1492b587b650716430ff9c2e079dca2ad1f62c952d

    SHA512

    424196f2acf5b89807f4038683acc50e7604223fc630245af6bab0e0df923f8b1c49cb09ac709086568c214c3f53dcb7d6c32e8a54af222a3ff78cfab9c51670

  • C:\Program Files\ImproveDefenderResilient\jXdmemDIXVZlyRJvLnMc

    Filesize

    1.1MB

    MD5

    04b529a6aef5e7c2a1f79a04b81be20f

    SHA1

    ee6a4c1f35ae62a42c0a4378362878769cd3aec1

    SHA256

    c7101b019dc7625c4036420b8c9f90ad4c6e7e57d847b1c60c6270cc67cf8aca

    SHA512

    328ed4939b78630cec8aa7ff3fc0af48ae4b1592241265d8f3d60d2945772686b1a1eb40b1ace635dad911482a12a985432793cf48ca9d637558982c53a11f81

  • C:\Program Files\ImproveDefenderResilient\lTRNmTKwQzfm.exe

    Filesize

    832KB

    MD5

    d305d506c0095df8af223ac7d91ca327

    SHA1

    679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a

    SHA256

    923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66

    SHA512

    94d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796

  • C:\Program Files\ImproveDefenderResilient\ojZEoSUznz17.exe

    Filesize

    2.4MB

    MD5

    f85f44f7f01ac7dfe2d379dad4386920

    SHA1

    2d1fefb3ac611e97845659085aaccf10b74815a1

    SHA256

    e2dde008486ee007b634bb8012ae1fc11f79ee4a2ce6e4d5337074cfb2582e73

    SHA512

    56d060093e92a6663b4c17a39c209009439d09b119856890ed9200cac51a3d2c7f726b681964cce83e0daf77a177db62fa5cf5ddb639fbe25c4be5c6fa5cc7a1

  • C:\Windows\Installer\f76d8f1.msi

    Filesize

    28.7MB

    MD5

    bffddb889b7089cc6af3b9d9efb3c89d

    SHA1

    977fc679569271849068e704a53c57b09009f414

    SHA256

    94200b3b4792c019ebe7bcfd16573fdedf385369e41309d82958568078e90c43

    SHA512

    0c3d0db3b8d0c5a071cc3a140695d8ea1b1600c36add6a4c36e24effd9d4dc579ce6953386cc624406c8fb9d6ba436b7082a5e675799d3f860fd0df6a5946e93

  • memory/2476-12-0x0000000000300000-0x0000000000310000-memory.dmp

    Filesize

    64KB