Analysis

  • max time kernel
    119s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/07/2024, 08:09

General

  • Target
    82710994bd87faf9a11a402b22145510N.exe
  • Size 95KB
  • Sample240722-j18efaxaka
  • SHA256 0f6adb912a7f0b16a406a6dc84cbc23f92234f8a7790a09661e19da1bcb46e85
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Renames multiple (4826) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 58 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82710994bd87faf9a11a402b22145510N.exe
    "C:\Users\Admin\AppData\Local\Temp\82710994bd87faf9a11a402b22145510N.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\_README.md.exe
      "_README.md.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:1512
    • C:\Windows\SysWOW64\Zombie.exe
      "C:\Windows\system32\Zombie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:4264

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        desktop.ini.tmp

        • Path C:\$Recycle.Bin\S-1-5-21-2990742725-2267136959-192470804-1000\desktop.ini.tmp
        • Size 49KB
        • SHA256 4ee965bf16a4bc13d26aa757682312f188b4ae2adbfd3e3d15b31219f47bd062
        • MD5 SHA1 SHA512 SSDEEP

        7-zip.chm.tmp

        • Path C:\Program Files\7-Zip\7-zip.chm.tmp
        • Size 161KB
        • SHA256 f755230491166c48bec71ea154d35d7cee2808c0f2624d4ad6adb8eedd8f246d
        • MD5 SHA1 SHA512 SSDEEP

        7-zip32.dll.tmp

        • Path C:\Program Files\7-Zip\7-zip32.dll.tmp
        • Size 113KB
        • SHA256 0d3be00d6ae68cc56964c62ba625144e0be8094742ccd4ddebd4f559a06119ee
        • MD5 SHA1 SHA512 SSDEEP

        7z.dll.tmp

        • Path C:\Program Files\7-Zip\7z.dll.tmp
        • Size 1.8MB
        • SHA256 fb7f533588dc12bda79e4ddf8dc4426150c6fef6ebafb27e84547af8e4f8b6c6
        • MD5 SHA1 SHA512 SSDEEP

        7z.exe.tmp

        • Path C:\Program Files\7-Zip\7z.exe.tmp
        • Size 592KB
        • SHA256 afc86119f8e532a9c35b31b63ea2589bb4a893bb4c75451498bf75b6af19bac9
        • MD5 SHA1 SHA512 SSDEEP

        7z.sfx.tmp

        • Path C:\Program Files\7-Zip\7z.sfx.tmp
        • Size 255KB
        • SHA256 f293e6000a384c49aea7f444bb5b4f35abee7c1b2bb05cf6092670de1ac244e1
        • MD5 SHA1 SHA512 SSDEEP

        7zFM.exe.tmp

        • Path C:\Program Files\7-Zip\7zFM.exe.tmp
        • Size 979KB
        • SHA256 e748fe4e909e6a586f6cbd9253b10d0a140d30f457fc79af0d7b29bcf12a2acb
        • MD5 SHA1 SHA512 SSDEEP

        7zG.exe.tmp

        • Path C:\Program Files\7-Zip\7zG.exe.tmp
        • Size 732KB
        • SHA256 10ae692a53b9c99f5ce16629282ff7bc43ccd5fef4afbffa128c86123351f096
        • MD5 SHA1 SHA512 SSDEEP

        af.txt.exe

        • Path C:\Program Files\7-Zip\Lang\af.txt.exe
        • Size 56KB
        • SHA256 0c93cd506e591d509a816fee802fa3a634482f2a26df59001afdaf73628ede06
        • MD5 SHA1 SHA512 SSDEEP

        ba.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ba.txt.tmp
        • Size 59KB
        • SHA256 1b9d91ebbc7ec19b8adf52cd0f88951c7c1875b9560f979adf4bbfe4bd64a854
        • MD5 SHA1 SHA512 SSDEEP

        bg.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\bg.txt.tmp
        • Size 61KB
        • SHA256 21317d3c8500cf302c4553d2fce3fdab937fb1140e171246b0c1fbc9ecfe68fa
        • MD5 SHA1 SHA512 SSDEEP

        bn.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\bn.txt.tmp
        • Size 63KB
        • SHA256 872cbc7e8a9656ae3dba338714da10874da4816336cd7ed6f6ffb6f07e101333
        • MD5 SHA1 SHA512 SSDEEP

        cs.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\cs.txt.tmp
        • Size 57KB
        • SHA256 061134ac59aa36ee4a011b0dc335a81b0c0fcf48c673d50d26b975d1995d70b8
        • MD5 SHA1 SHA512 SSDEEP

        de.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\de.txt.tmp
        • Size 58KB
        • SHA256 e5e947b3b504f2ba4dc1398d00b6f61eab28a2f85066439be2da68118b22e26f
        • MD5 SHA1 SHA512 SSDEEP

        el.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\el.txt.tmp
        • Size 65KB
        • SHA256 375e0b19396e79d4a3d62a856a1ee5acd3402f529d7594f9d5856a2478db85fa
        • MD5 SHA1 SHA512 SSDEEP

        en.ttt.tmp

        • Path C:\Program Files\7-Zip\Lang\en.ttt.tmp
        • Size 54KB
        • SHA256 9cc34d01720e9f75d8ec6838585283b04f6cbe4c96fa830e34fc3eb2e998d887
        • MD5 SHA1 SHA512 SSDEEP

        eo.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\eo.txt.tmp
        • Size 51KB
        • SHA256 fcd621909ebde40bc87321290803f9d1261e43c89540fa803fc8f77b7eb19984
        • MD5 SHA1 SHA512 SSDEEP

        es.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\es.txt.tmp
        • Size 58KB
        • SHA256 bc25aeaf629296e15aed7bc41125088a8ed23ca8efd6dcb0a2dd496215f337f6
        • MD5 SHA1 SHA512 SSDEEP

        et.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\et.txt.tmp
        • Size 55KB
        • SHA256 7ca1d7bb3b4e4b32eb53584655787117c586721a9274a03e137be6f17bf512fe
        • MD5 SHA1 SHA512 SSDEEP

        eu.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\eu.txt.tmp
        • Size 57KB
        • SHA256 9c66f541921c1bb975f2e328733bac1d31682ba6a890e2213bd3944aad34cc39
        • MD5 SHA1 SHA512 SSDEEP

        fa.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\fa.txt.tmp
        • Size 62KB
        • SHA256 eb7f43f2e777c0febf25ed4f63c3f090576ce4d330d6b3a1dbb6240afd9763ee
        • MD5 SHA1 SHA512 SSDEEP

        fi.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\fi.txt.tmp
        • Size 55KB
        • SHA256 149f95446f5688c8da539289e47c2e49a5d59bc250c44cb8f80de65cd59b305d
        • MD5 SHA1 SHA512 SSDEEP

        fr.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\fr.txt.tmp
        • Size 55KB
        • SHA256 069b5d0e4d518900343506db9392b831e1384efb21335865acf8d77637955a10
        • MD5 SHA1 SHA512 SSDEEP

        ga.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ga.txt.tmp
        • Size 54KB
        • SHA256 17ab3c9c315cddf6620cc83dc4f6b10dc1cf93a01426dcd782f5eecfe8f13a29
        • MD5 SHA1 SHA512 SSDEEP

        gl.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\gl.txt.tmp
        • Size 55KB
        • SHA256 fade78e7da3e10232f163fe3a4b7bde7938e4a9ec9d897e158dfd50bf5ff86d4
        • MD5 SHA1 SHA512 SSDEEP

        gu.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\gu.txt.tmp
        • Size 66KB
        • SHA256 4f3b5d60b801bfa1580ec87e3842430861397a02b01276f4c9e702097fb13885
        • MD5 SHA1 SHA512 SSDEEP

        he.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\he.txt.tmp
        • Size 57KB
        • SHA256 e5de7187fc1072e7ce68b1be2f790a0fb887a9e0c822ae219dda61e6a9bc6ce8
        • MD5 SHA1 SHA512 SSDEEP

        hi.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\hi.txt.tmp
        • Size 66KB
        • SHA256 9222a9e46b6858e7adeb923089799ef7663eece1da7bcbd67f8a07c7b3b7ae51
        • MD5 SHA1 SHA512 SSDEEP

        hi.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\hi.txt.tmp
        • Size 66KB
        • SHA256 db1e394607adede1cf2ca7b72c977dda40ffcfddccb87181ef924da5be9e31ff
        • MD5 SHA1 SHA512 SSDEEP

        hr.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\hr.txt.tmp
        • Size 57KB
        • SHA256 5af5e58f04bbf0ef3b69718ea6e554dee79b5c7b5b1d8fc6a0cf0dcd3815f670
        • MD5 SHA1 SHA512 SSDEEP

        hu.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\hu.txt.tmp
        • Size 46KB
        • SHA256 a2f44146d766c420a453b88b51232b96bfcad8135634ad10019be9e272c72c4e
        • MD5 SHA1 SHA512 SSDEEP

        hy.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\hy.txt.tmp
        • Size 62KB
        • SHA256 48f14ac571c58aa21bf920684ae98636548c00054083ff2f03c8465b0b0063c2
        • MD5 SHA1 SHA512 SSDEEP

        id.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\id.txt.tmp
        • Size 57KB
        • SHA256 0632332f6e05fd3f10e1061b349032b2113ce4f6fe3f1bbf19664caca706d14d
        • MD5 SHA1 SHA512 SSDEEP

        io.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\io.txt.tmp
        • Size 58KB
        • SHA256 51a1588c370873677d43738c471aeab079689cfc05d60d87915c2659b58913cf
        • MD5 SHA1 SHA512 SSDEEP

        is.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\is.txt.tmp
        • Size 54KB
        • SHA256 273c84ce2f702b80528f99b963a18d7fe0d401032230dbc0ba62688c2b4cfd46
        • MD5 SHA1 SHA512 SSDEEP

        is.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\is.txt.tmp
        • Size 54KB
        • SHA256 346eae57e0cddb0cec3274968c6bf9d880a72c8ed10285f7173051afed4ca0b4
        • MD5 SHA1 SHA512 SSDEEP

        ja.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ja.txt.tmp
        • Size 60KB
        • SHA256 60cd6c393858df572e07cddae666a7cd3349ca0a8807ed6586dd5a9e5e5d2d89
        • MD5 SHA1 SHA512 SSDEEP

        ka.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ka.txt.tmp
        • Size 66KB
        • SHA256 3b007d99448506081f2ed4ebd095ab60da951f44a54e72da91b18b61e4ce4fce
        • MD5 SHA1 SHA512 SSDEEP

        kab.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\kab.txt.tmp
        • Size 54KB
        • SHA256 2cdd42050bd3346262f7c317148e4d2c8bee7de9053f6292cb1071c674f75cd4
        • MD5 SHA1 SHA512 SSDEEP

        kk.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\kk.txt.tmp
        • Size 59KB
        • SHA256 25dc5daaf190ca321d083220cefab3bd601652c857378f3a95ab7c13d0a6c038
        • MD5 SHA1 SHA512 SSDEEP

        ku-ckb.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ku-ckb.txt.tmp
        • Size 61KB
        • SHA256 e3771e20b4f7c8a0f59147e2ecdf2d96c1d9801387bece509af7c1cb6cd65717
        • MD5 SHA1 SHA512 SSDEEP

        ku.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ku.txt.tmp
        • Size 44KB
        • SHA256 da6589f62459b84e1db6a4086a4eb128ff112f58b2ae56e8fc7a8428ff78d034
        • MD5 SHA1 SHA512 SSDEEP

        ky.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ky.txt.tmp
        • Size 61KB
        • SHA256 9b990bb354c4e07fd48a89a355e9de419c5968f053213cfa930769aa76688fd5
        • MD5 SHA1 SHA512 SSDEEP

        lij.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\lij.txt.tmp
        • Size 48KB
        • SHA256 37571906eeb472214de04c789c3535b49051681e4bc424d2cde43c68543930df
        • MD5 SHA1 SHA512 SSDEEP

        mn.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\mn.txt.tmp
        • Size 48KB
        • SHA256 957e4fbb3c45748b4f316ca394d5a03552696935c67a559f2b02dfc572eaed46
        • MD5 SHA1 SHA512 SSDEEP

        mn.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\mn.txt.tmp
        • Size 57KB
        • SHA256 cdc6ff5c5da79090cb0f263f0da00252e22f0f2423b73b37fa36c46085af4687
        • MD5 SHA1 SHA512 SSDEEP

        mng.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\mng.txt.tmp
        • Size 68KB
        • SHA256 8269bc8a8228b5ec6725135e12ca14c958d499fa3428d42e921e6b71eed7a0e2
        • MD5 SHA1 SHA512 SSDEEP

        mng2.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\mng2.txt.tmp
        • Size 67KB
        • SHA256 eaa875ccecce01f031fb01942e263c25ab6b9f16b3f575cb0489c5e2d4c67194
        • MD5 SHA1 SHA512 SSDEEP

        mr.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\mr.txt.tmp
        • Size 56KB
        • SHA256 bdeda9b866af2337ab3c8690a78c02cc769ec9b3e8a731553e8a284fa12dc551
        • MD5 SHA1 SHA512 SSDEEP

        nb.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\nb.txt.tmp
        • Size 54KB
        • SHA256 9c5da055d77c51df4cf8716736362509aa1772cc6a087e5630aa27b7c1b299b1
        • MD5 SHA1 SHA512 SSDEEP

        ne.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\ne.txt.tmp
        • Size 62KB
        • SHA256 626e144b97179b04b34606759bf013b1ce91f67802a8bfafe796ee62a1c37a27
        • MD5 SHA1 SHA512 SSDEEP

        nl.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\nl.txt.tmp
        • Size 58KB
        • SHA256 1365a3941b4271c8271b8a6dff7f7ab2bf50bc102cd0568d6aaf7f49f14454ac
        • MD5 SHA1 SHA512 SSDEEP

        nn.txt.tmp

        • Path C:\Program Files\7-Zip\Lang\nn.txt.tmp
        • Size 54KB
        • SHA256 df351992877ed86175abe6170245e6c5c35099773cf25ab171b40a9c8526186d
        • MD5 SHA1 SHA512 SSDEEP

        System.Runtime.Handles.dll.tmp

        • Path C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Runtime.Handles.dll.tmp
        • Size 61KB
        • SHA256 4332620c2bdd406fc27b89a9c651edfe4d4d1bbffb8d9b09831c728104744487
        • MD5 SHA1 SHA512 SSDEEP

        _README.md.exe

        • Path C:\Users\Admin\AppData\Local\Temp\_README.md.exe
        • Size 48KB
        • SHA256 8d96813c7614e5d86721b3ddd87c3f9ea5f3587eeb90dfd20f290e6ed80f72cb
        • MD5 SHA1 SHA512 SSDEEP

        Zombie.exe

        • Path C:\Windows\SysWOW64\Zombie.exe
        • Size 46KB
        • SHA256 450519a03b273bcafff22ab25502e73bce9626f1d1291a1d0f2edfd1dfe5fb13
        • MD5 SHA1 SHA512 SSDEEP

        memory/1008-0-0x0000000000400000-0x000000000040A000-memory.dmp

        memory/4264-11-0x0000000000400000-0x000000000040A000-memory.dmp