Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 06:00

General

  • Target

    eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.exe

  • Size

    120KB

  • MD5

    56a93655cc5ee4646606a531e30ffa23

  • SHA1

    7326653a2fa2eba344c6f4d389ac94915ff9a46b

  • SHA256

    eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e

  • SHA512

    20b2987485916f1a86b9b130c054db01dd289119fcdfec3192be735b58874bdf399caa6db4728e62d7cd22de94b7bfe1d806321643e45eef0171844bd6bac022

  • SSDEEP

    1536:JxqjQ+P04wsmJClF1tq5QW1ZQ+P04wsmJC:sr85CHq5QW1Zr85C

Malware Config

Signatures

  • Detect Neshta payload 5 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 1 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 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 registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.exe
    "C:\Users\Admin\AppData\Local\Temp\eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.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:2392
    • C:\Users\Admin\AppData\Local\Temp\3582-490\eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2928
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 148
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2480

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

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\eee1277c3f475b2158fb42c9fcb61818cb7458c9a8348d228ebdcb0f7011468e.exe

    Filesize

    80KB

    MD5

    10a1d588f98bb73c4de18ad746fea3fd

    SHA1

    a380b1b5506aff960bd2d4501f26f781d0317f79

    SHA256

    5eb305ef224eeb43a7a1b8f320b7bff2586f74925854e2e5447143bb42ea9bbc

    SHA512

    09f88cc8399f41fc4b6e035183d49af7858532fa675f5cc10e4eff030921dc76ee085d5d1e62c9c109abcb894f302466a41a916b61451d7832e42c2036a42a18

  • memory/2392-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2392-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2392-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2392-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB