Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 10:34

General

  • Target

    5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.exe

  • Size

    121KB

  • MD5

    0c2650508b0848bf8cd0015fbae8da60

  • SHA1

    e45dbf4a70408c343f2981c2b319704eeff6aa1c

  • SHA256

    5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130

  • SHA512

    25b444374663cc67ae3c42310a58139ed29b46040a801492fe3e0c4247b739edb1ed8e7889f90c3118b44b45c68ddeb7dcd3388825660a1ae9db8947f2aa0941

  • SSDEEP

    3072:sr85CLH1b9BiK6miouhrVSd4TwJP1SWjm8ytqmMHkJkx9ITh:k97994K6w54K1SWjlWqmgpO

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 11 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 1 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 WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.exe
    "C:\Users\Admin\AppData\Local\Temp\5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.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:2544
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:492

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\5be0b9e164c205a770ab809a2ecf4cd871cf739716ef339b96a2ee9d7fa2f130N.exe

    Filesize

    80KB

    MD5

    4b01d760d25a472ac55c1919b55cfdff

    SHA1

    22d6dbdf440719d17d811669f49c21b75b52b301

    SHA256

    7090866849c1ac34d20997724d59881974be52f3effc478ecb625d85dcc5a516

    SHA512

    05bd32829810385178191a28a7108d1dee786055fab21182b703d24ee3ffbad0cac1bd7cecf676692dcbdf77f64560b67363b6102701e7c803d149bb046db650

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2544-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2544-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB