Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2024 12:57

General

  • Target

    Spchapi.exe

  • Size

    824KB

  • MD5

    d421da9b6a100bf58c7c6d585c73ed4c

  • SHA1

    79521256aab1fc5d01a661ed0cdff45a88ab2ace

  • SHA256

    8955ee03217bc2539e2f80e58f51d30aa97e7512d96592f098133c8036e363dd

  • SHA512

    ca0b75d1a07b125cf3b774483e098a9095d18ee8c1a277a2ff6aeeeef1e1d74a5e55855dbf7f13cc96a82423203ea86336372d48d483dc600d3ead38fe746c60

  • SSDEEP

    12288:Kz/V2AMT1VXCE92eGFj+oOR98ikw/o1FXDoOci+kyYo3gJqr0KHemtRH/d+w2NHf:Kz3yVyEQFIiwQYiBLU0Kt1p2lRIWT

Score
8/10

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 50 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Spchapi.exe
    "C:\Users\Admin\AppData\Local\Temp\Spchapi.exe"
    1⤵
    • Modifies Installed Components in the registry
    • Loads dropped DLL
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\grpconv.exe
      grpconv.exe -o
      2⤵
        PID:2956

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MSVCRT.DLL

      Filesize

      260KB

      MD5

      63da4613383ec70e047b4cd5c48f0b05

      SHA1

      578dd3ee844678c24c0831b6cc61a7dfae410bdc

      SHA256

      d4287ab5e4988dfe99bd54243d50dbe8744094f11fe5f9809a1a6fb9728c2124

      SHA512

      0fe7226cba7984f22367d03dafe568e8c0e44956a831fda93d4bd8ad9cbc9ee87dc03e4a56696c0bb0e5f8ec27a304c06cdb56c52d87263362359523f0a220a6

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SPCHAPI.INF

      Filesize

      57KB

      MD5

      b00f1393bf87560945b6b38425998a79

      SHA1

      2fe00a212f952f7e4a53d53880ac90ef8d8c32e5

      SHA256

      9e7e55b61d3619729829b263e0af2320223c7eda74eadb2644c63d728405c86b

      SHA512

      854222c8d68ac0d556fe0fb4e1bbcdccde963bf1fe82c1689dd86439a519d8afb5c9db7bca4939fbde011dd4c84c09610b779adc64a18f0caaa57783ce29c7ef

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SPCHTEL.DLL

      Filesize

      243KB

      MD5

      c546b50be180b4f7810fd78c7fe8433f

      SHA1

      d7b071eaff8d0498724c1e779731db51e41c900c

      SHA256

      ea6b0454ac40794ce46a6fd8fd244179cfe76293b18cdb52f02b372dc0f64d1d

      SHA512

      34ef3830a489510b42dbe0b084d3e688f7558ad2f806e344b760d5e25744763792ca52a664c312a47417cf629a74ddec302f47eed813e76316ae2e5aaaf6612d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SPEECH.CNT

      Filesize

      207B

      MD5

      4653630ff6f8405f6d26000802e638ac

      SHA1

      3e6978815d5e0465c7ec557a2da4c253fe89427d

      SHA256

      51d0efea836528cb137914a6dd77f049cf0457245fdfd608c3936605adb11c57

      SHA512

      961db65e440dd831f2b490d4c80f306047e65cc0ef6f1c921a732b89a11b289b84e8556d4711ab9af0821cb01f4cb84f8ceccd51865448f93a28f5a02678805d

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SPEECH.DLL

      Filesize

      549KB

      MD5

      898fc91bf6424f629e933273b6e46ffd

      SHA1

      2c777a8cb7f6e9a469f6d6486c98e70414949acd

      SHA256

      171d545ca7d10188875fcf103b664be2195996bbed2bd4dacfa8cfe827f1a441

      SHA512

      de7815a04cbddcff2c2ebef4c6d441936314924f6bdce3b3fb4a8bd4b62b761c7dbb3b99a12deb45b23b186f42a431d67b43fb9950f3d447ee9f721bf6cf6ffc

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\SPEECH.HLP

      Filesize

      13KB

      MD5

      a7db03e26dd567b3ec5804d5064c738c

      SHA1

      37abaf849e1cbc0eacd545c19e7ad81d947c113a

      SHA256

      56dbafcfa4a628fcd20e49bf169115bafe596104f8dd51d2aac8d7cabb452c3a

      SHA512

      d7f033695ac098a07f6d7cd00f0bee86bd581d3ab9b8f4b5073337fcb1277b5a49a99ea7d65819587ce2d807e0652c7ea0d98524f1cc934be64776c25d2daee5

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCAUTO.TLB

      Filesize

      7KB

      MD5

      695b08aa62b0dd9031fafcc1bb2a16d6

      SHA1

      1b151114b4f1fff8b3ddac92f4e8b3de2cc02ff3

      SHA256

      0e74c1dcbcb38daeb9d505b94f74b32ad8d37e8a26ef4022d46999eb3727720d

      SHA512

      f0a816783fe19a740c50cef76f5747ba19f86fbb41ee95d53c234f0bdb1e28e7d9badf55fef6e7e8e1b9d1d656ef5c4f5d59baa418fe6968e42a083963b3f128

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCMD.EXE

      Filesize

      372KB

      MD5

      367351856db877b6c659dc42dbc89df0

      SHA1

      6725fba6e42487929f75c59fddf44c8d090a50e5

      SHA256

      6b2c21142bbb3050101606f05956a60dbe04f971bd8034d918731f8e9450cd35

      SHA512

      2c5ea481d64203751fa059bbf54e17a826df8a89d73d923dc4c5a68a0c25687cc3d74e511cd740eb801c6210c18a51bf268d3dfb9648a83eed137bd384640634

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCMSHL.DLL

      Filesize

      152KB

      MD5

      2f8c18e8e067f6b84bf8c6c482862a70

      SHA1

      1c350c5a4674115cb8ba5620ec61fbebcd8fe974

      SHA256

      437ae2139661f2fb5fd97b34ee751521db477ee8c3454c920c5480020aaf94f8

      SHA512

      1a5a4d6064cfa35106c865661249d1023ab777b1c216c34dc0e86df435338cf1f8d8589fb567d34956e71a607db4aa8ce43039f42d5fa3ddd0c68506064588e5

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VDICT.DLL

      Filesize

      175KB

      MD5

      6dc843c473b68ea93202a32b6445c765

      SHA1

      3616292d1b84b9273471af195927d422d7fb9394

      SHA256

      08b35a07bf0dd5b231f7b25aa48476a7f78c9fca7a76c047103025d1a95952fd

      SHA512

      77623c61303b1f5fafb5d5af3e1d409af37ed3bd8c8c8bdf83206f2b5ba248553758696cf16835299f2267265689ce0fcb8564cf6823074257ce6964ac0bd517

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VTEXT.DLL

      Filesize

      169KB

      MD5

      c0a7306a302dd35145a37286dcfe6e04

      SHA1

      beba434997c5f60e988bd98928c13273996cb516

      SHA256

      b7a0114e8bd9875e98fa6c98215d3b4582e0d1eae9b799b912145e88095ee815

      SHA512

      ada43188cbf3d877ed055fc4a7395482a7a0adff6268880685b450f2f79c081aa8499f4770cd70c70c146002ac7fd516421202e275a71568872b879d0696d80a

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VTXTAUTO.TLB

      Filesize

      6KB

      MD5

      283c7d582752fc0c025421fca7b7e1d0

      SHA1

      ee6149b8023ec61b18b098ec3e37648c610c51a3

      SHA256

      544b33cf240a425cccc910269c68b99b411b2374571ab8af51a490f9cc277f77

      SHA512

      844a6689000afc5fa724e1e1fbd4e4efc6ba6f67a4c5d2ef88c0c963feb5f9cbc62779affc11c318bef4b049a77d6818b0b2f8fd0c85cd14e6ae7414885b482f

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\WRAPSAPI.DLL

      Filesize

      52KB

      MD5

      8ccb0967e7371d64933fca913065789f

      SHA1

      63173da8984611aca496a253dba336af23aeb558

      SHA256

      8e0a80b885a73c8b62e87ab7f2a4b06a556b4db37a1fba9b37db2629f4c36a49

      SHA512

      9064f27f70b7a4e48dd9fac1954060fbdb5d5b35355f7be5c8a1221cc931ef20df7e4543b28e4416f86ed0c56b6a2a204d78db4c70e298bd29db5ccab2349d3a

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\XCOMMAND.DLL

      Filesize

      125KB

      MD5

      198c46362e9e7742f7efafd936624bed

      SHA1

      87b628c2a14a1c5897fd0281a682e9bdcb32bfcc

      SHA256

      0bd009b376f9ee2c2cea181adc0014c6c9ba91a4eaf7a3b98441a1696d302e89

      SHA512

      8c747cb697294df0daf092c8f139ffd18c92a098b1b709359739644029b5523d6b5d9ac80d11e1a4fe885ad13fe8a810222d6d609997b722ae0908421f9168a5

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\XLISTEN.DLL

      Filesize

      204KB

      MD5

      ce7367a398dd2d0f77041316906114fb

      SHA1

      128bbde9b589b94f88ae9799043b3c05fdc73990

      SHA256

      287fec5f90f973a5aa4100bdbca1c9cbb0e242f908d218b975b9623ea25f9393

      SHA512

      a5151b5ff83ed72288e76e9f7637ea83746e61a2d9b13476cec6ddbb072c36b4c5929c40dd0c39a600338a9d8c4a5bebad304b0d29d9f4050a67ec2e894b8519

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\XTEL.DLL

      Filesize

      199KB

      MD5

      69c2b85b9db59f7ad8d04e6dbfbde511

      SHA1

      4547a87c80b3ff9e2a148f7c0822c2495240aa5c

      SHA256

      c32846fab920f5da84005aa169ff259c54a3b9504faabc52f2f53d240ed2418e

      SHA512

      e677a28a20b4b481d87cd2007dfc3d6f8b88dcd0cdf25df988a43b8480458a37c145ecb8a9ff48ae41586fb571230e79208ba7baf74dd27b78d93412fbe1ea11

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\XVOICE.DLL

      Filesize

      191KB

      MD5

      06201e3ce75755e5eb4138a0a3e1925b

      SHA1

      05296f4e2774b9c3270365bf19304bf28e13fd51

      SHA256

      2bb50939fa7068791eea58c1fe6b112bcf5bb423ca55b9698411957a6f82d1b8

      SHA512

      0bdd01a7f42a3b6de0ca094d55d79437897e2f329751735097d2b7c4ed07792ba81c07544ec9a1f8c89a9472b57b3067dc204bd773721ab8398637949ae74d77

    • \Users\Admin\AppData\Local\Temp\IXP000.TMP\ADVPACK.DLL

      Filesize

      73KB

      MD5

      81e5c8596a7e4e98117f5c5143293020

      SHA1

      45b7fe0989e2df1b4dfd227f8f3b73b6b7df9081

      SHA256

      7d126ed85df9705ec4f38bd52a73b621cf64dd87a3e8f9429a569f3f82f74004

      SHA512

      05b1e9eef13f7c140eb21f6dcb705ee3aaafabe94857aa86252afa4844de231815078a72e63d43725f6074aa5fefe765feb93a6b9cd510ee067291526bb95ec6