Resubmissions

27-10-2024 08:59

241027-kxz5bstqds 10

Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-10-2024 08:59

General

  • Target

    01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe

  • Size

    1.7MB

  • MD5

    48e5b34c93fe634a4eddaef1e2a1cfe0

  • SHA1

    1531156f4ba164bcc588a2aad806d99078b8736d

  • SHA256

    01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7

  • SHA512

    081b58816e2f201dab6a43721ffb853670abe468027b28f4f123431e3cd5c3b979ecdeaff93dd7cf8801783147c7e6817ac25b5df602acc0de59ca5314188c56

  • SSDEEP

    49152:Hrh0WBa1DWXfKkdo59VdUkwS2s+DDtTg7orSK1:l0WwIyKoxD2bpTg70S4

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 10 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe
    "C:\Users\Admin\AppData\Local\Temp\01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Users\Admin\AppData\Local\Temp\3582-490\01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1784
      • \??\c:\37f7c2521adcd18f35931246698d01d9\update\update.exe
        c:\37f7c2521adcd18f35931246698d01d9\update\update.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\01d2a7cfe51a724bc9f9364577ce7919a72e136f05a20a007b32d60d99a8d4f7N.exe

    Filesize

    1.7MB

    MD5

    fd1dfe415d36e4322b7e76d099a98b29

    SHA1

    6d9bb99ea66d85b837ddd81b59066e04cee87693

    SHA256

    c478c7b9c3fc1124c11b189f8080c699c9e171d95e5ff64b891d6f219a7ee736

    SHA512

    bdbab100e52e97489bbb96cf3944abf6ec782639a0678deddfc236bba7d6605bc83977ce510a6b83c1a5e805691a147acae08f5ce804900b1aa55f7164d31a09

  • \37f7c2521adcd18f35931246698d01d9\_sfx_.dll

    Filesize

    30KB

    MD5

    b9b02d97007953e74caaa38497e7278a

    SHA1

    3954391efec4615a597594b02ad755f539d2fa42

    SHA256

    e4ecf14cf98b855642505802a04be2035db6e13600112c01632e2e600c8184cc

    SHA512

    78f39f6c6167ba61f52501912b3c5fa6d8c0d594be9f9a5b888b2cb4e19c1d499328fe28a90cc1457e15b14f78ce5a3591b8ed1468afb8d5e944df07a7ae2c6e

  • \37f7c2521adcd18f35931246698d01d9\update\update.exe

    Filesize

    673KB

    MD5

    c44c9d1907276854777480c3a969e296

    SHA1

    c22ff3b85f35f65e8ab91fb5e175f0e19e79b466

    SHA256

    041b7515fcb704d6669abd650f73a965e670df9814d7446358dcf4dd1745070d

    SHA512

    c09aa1d202af267b6fb9d2c2b658cda73f502f8ff788cc8fe18c8c6178932ea55884f8b3efb7b185c2618e6aeb3dfd51a79f33d5a5986d32376dec89b03302be

  • \37f7c2521adcd18f35931246698d01d9\update\updspapi.dll

    Filesize

    320KB

    MD5

    743c397f73b68df0ee047027648f80a5

    SHA1

    883bc39dc1820cc8eec6bd6fb1a12f7c17187f1c

    SHA256

    0189866ff34d3bdd4cf6d28d90cea0f437f49f1b7a4ef0d4850a31705c0b08bd

    SHA512

    f1d9d2be0b348ce6efe37e8af9605599c3c2f6b2dda1b34b7d361e95738959b285c5cda87811e3ca738c7dbc082ed9d0ccfb083a547c8cd413ccd96b245fcfc8

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2056-400-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2056-407-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB