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Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2023, 17:31

General

  • Target

    146dd8f29e610bbcaa83766607cac07f_JC.exe

  • Size

    418KB

  • MD5

    146dd8f29e610bbcaa83766607cac07f

  • SHA1

    45fb0ada48cc290c358e9a0054ce28c72a343bc4

  • SHA256

    6fd634ad6e74fe9cf0c51adb1e35b475cb128374d2f33f31c575542403bbcc08

  • SHA512

    c40cc82349d8c93ba18d7185323848f7f55c19f919fee8f439b1ac30762a940da3438020f6cdf6ffd9bd1ff6ab4f4aafa8dd2ad9af651cd721597eb9bb5d4deb

  • SSDEEP

    6144:p1I2PbSyXuF4a4gLZRE65J3EvgxxEvMI2uLZBV+UdvrEFp7hKL:pFBTavRh5J8qxEvMI1BjvrEH7s

Malware Config

Signatures

  • Detect Neshta payload 10 IoCs
  • Neshta

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

  • Downloads MZ/PE file
  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

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

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

  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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).

  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\146dd8f29e610bbcaa83766607cac07f_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\146dd8f29e610bbcaa83766607cac07f_JC.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    ed4f80552eb316e02c385d3208c58d2f

    SHA1

    9615c14d8295a22b5d83bdc7d07e8dcaa1a9d494

    SHA256

    8fdf26016ebbab62eff7a874c29b64dead20c4f025c29e91cd845b763253de6c

    SHA512

    4e67e029b68f258d464dd325cd357e2e9fee105b9e8f801b66748f8c60b5172cdc4c29bddcf91f31c6fa14aaec3b11218f7292487fdcdec4abbaf1815a2c488f

  • C:\Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe

    Filesize

    302KB

    MD5

    fe8eb129610e454ad17b9d6ccbf1df8b

    SHA1

    28cfddbc7faf2e66aee0eec673c7eb7beab25510

    SHA256

    8cea4adf5febfa9528d01259bf9b70afdb814ce8b41605b8c619a9738a9c9414

    SHA512

    4aa488a5844eb65fe0f72d1ab325ba07a40fa0cae658bba38f59260c1467d5c902ae8bcd6d8e2f15a5c81139147155948f99a0e303ecca001f24a58d5c5de399

  • C:\Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe

    Filesize

    302KB

    MD5

    fe8eb129610e454ad17b9d6ccbf1df8b

    SHA1

    28cfddbc7faf2e66aee0eec673c7eb7beab25510

    SHA256

    8cea4adf5febfa9528d01259bf9b70afdb814ce8b41605b8c619a9738a9c9414

    SHA512

    4aa488a5844eb65fe0f72d1ab325ba07a40fa0cae658bba38f59260c1467d5c902ae8bcd6d8e2f15a5c81139147155948f99a0e303ecca001f24a58d5c5de399

  • C:\Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe

    Filesize

    302KB

    MD5

    fe8eb129610e454ad17b9d6ccbf1df8b

    SHA1

    28cfddbc7faf2e66aee0eec673c7eb7beab25510

    SHA256

    8cea4adf5febfa9528d01259bf9b70afdb814ce8b41605b8c619a9738a9c9414

    SHA512

    4aa488a5844eb65fe0f72d1ab325ba07a40fa0cae658bba38f59260c1467d5c902ae8bcd6d8e2f15a5c81139147155948f99a0e303ecca001f24a58d5c5de399

  • C:\Users\Admin\AppData\Local\Temp\Cab475E.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\Tar47DE.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • C:\Windows\svchost.com

    Filesize

    40KB

    MD5

    6831f7fff82397593eee1ee361fe730f

    SHA1

    f20510a57319c23cbd93818cdfd3bef6bfd99b5e

    SHA256

    2920ffad7c57d1b42f29ab395f7e7fe02b4d59792016f90037aff9ed4e1e23e0

    SHA512

    a2992c529c16d8829da35032e4625a7676cfdd45c7aa1d743c45f2bc7984de48661a4b91b59542a0d364013b22f1c949cc430c875e47dc95682061544bea7a58

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe

    Filesize

    302KB

    MD5

    fe8eb129610e454ad17b9d6ccbf1df8b

    SHA1

    28cfddbc7faf2e66aee0eec673c7eb7beab25510

    SHA256

    8cea4adf5febfa9528d01259bf9b70afdb814ce8b41605b8c619a9738a9c9414

    SHA512

    4aa488a5844eb65fe0f72d1ab325ba07a40fa0cae658bba38f59260c1467d5c902ae8bcd6d8e2f15a5c81139147155948f99a0e303ecca001f24a58d5c5de399

  • \Users\Admin\AppData\Local\Temp\3582-490\146dd8f29e610bbcaa83766607cac07f_JC.exe

    Filesize

    302KB

    MD5

    fe8eb129610e454ad17b9d6ccbf1df8b

    SHA1

    28cfddbc7faf2e66aee0eec673c7eb7beab25510

    SHA256

    8cea4adf5febfa9528d01259bf9b70afdb814ce8b41605b8c619a9738a9c9414

    SHA512

    4aa488a5844eb65fe0f72d1ab325ba07a40fa0cae658bba38f59260c1467d5c902ae8bcd6d8e2f15a5c81139147155948f99a0e303ecca001f24a58d5c5de399

  • memory/2484-188-0x00000000750F0000-0x0000000075125000-memory.dmp

    Filesize

    212KB

  • memory/2484-183-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-7-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-177-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-200-0x00000000750F0000-0x0000000075125000-memory.dmp

    Filesize

    212KB

  • memory/2484-179-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-180-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-181-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-182-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-10-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-184-0x00000000750F0000-0x0000000075125000-memory.dmp

    Filesize

    212KB

  • memory/2484-199-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-189-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-190-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-193-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2484-194-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2484-198-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2712-187-0x0000000002D40000-0x0000000002D41000-memory.dmp

    Filesize

    4KB

  • memory/2712-178-0x0000000002D40000-0x0000000002D41000-memory.dmp

    Filesize

    4KB