Analysis

  • max time kernel
    100s
  • max time network
    90s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    04-07-2023 13:08

General

  • Target

    EndermanchInfinityCryptex.exe

  • Size

    211KB

  • MD5

    b805db8f6a84475ef76b795b0d1ed6ae

  • SHA1

    7711cb4873e58b7adcf2a2b047b090e78d10c75b

  • SHA256

    f5d002bfe80b48386a6c99c41528931b7f5df736cd34094463c3f85dde0180bf

  • SHA512

    62a2c329b43d186c4c602c5f63efc8d2657aa956f21184334263e4f6d0204d7c31f86bda6e85e65e3b99b891c1630d805b70997731c174f6081ecc367ccf9416

  • SSDEEP

    1536:YoCFfC303p22fkZrRQpnqjoi7l832fbu9ZXILwVENbM:rCVC303p22sZrRQpnviB832Du9WMON

Malware Config

Signatures

  • InfinityLock Ransomware

    Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.

  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops file in Program Files directory 64 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EndermanchInfinityCryptex.exe
    "C:\Users\Admin\AppData\Local\Temp\EndermanchInfinityCryptex.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow\TAB_OFF.GIF.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    352B

    MD5

    dbd3255b08e0b2f8e1f1759a8a1666fe

    SHA1

    3f1d372441e71a3def80675a2a391fb3059e473b

    SHA256

    1092de30ce24936e353cf64ec23dc1b39984629534b5524d9804d3c5f27008d3

    SHA512

    6418eb75435d0148f6ab9f23b2b077e25c1a917ee7f155f3705f9631e795586dbc0aa33f2587ab23daec6b7ac3c7ff0f7952e27b421c6dfafb5bcca82e9b35b4

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow\TAB_ON.GIF.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    224B

    MD5

    a49d132390e1d7dc8ce45b1d6d349a6f

    SHA1

    49a9c4248d65f2f9ea2b031dbf4e2edc06240576

    SHA256

    30aedc137d22fe9cf4c2b95d0c13c99375135b63dee098b8b9ba446e203ff476

    SHA512

    03ea4af4e3f8c754d1308a7f11865f47d96637b88517f74e393521ab563b711f03e900d616a615e4aaf2823c39d998feb90619ecaafd2390aaa69ba4120641d1

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH_F_COL.HXK.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    128B

    MD5

    48af601684c2f945d1acebec3cb9811e

    SHA1

    d33d47b4463a0cae698fc2f76496a4c0f32153f6

    SHA256

    65da3f50affcfb0aca76256ba00fef49369772b6626b2daaca3393940ee458e0

    SHA512

    44007be6545f4acc5c7d731f9e97fc2ab81ad0df167f32c3829b854001d9ec8c2700d6c9f61916c512d8ca1966f93a0ac7ab870f9678ec31b9990a67c0c02c16

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH_K_COL.HXK.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    128B

    MD5

    020d0e8183a409cf3f49dc1d4113efd7

    SHA1

    dcdd6e591587fdbbaddd2fe9c90ede7fa3877db7

    SHA256

    462a5f8ea5cacea7fe5fa72b9ee94d98b90f47eee2bf6027986118ad36abf3d7

    SHA512

    ec4a6290fe0ad492b620f54d9786534bbc69dbfe6568fd145a1790fb68faa54c16dd560548ef7a1b72b6912f8c25d1314ae38d73cdbe880876852775a9a697d3

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\BabyBlue\BUTTON.GIF.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    192B

    MD5

    519a093e6700697a34619cf256b3a75c

    SHA1

    77591c1665a5562f2afdfbd1e0d5148a0fcb0449

    SHA256

    a8f71119d847bbd05351c7d0aaaf32fb27cfd6f551f5dc25285816cd492da521

    SHA512

    76875d06ad669f9732f7383918db0871f53c09e02ad193413286cbdfd198638e97f38810e34eeef9d0b3d83f68b722187a2ea80682307a1eae21763a6f6f4f86

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\Desert\TAB_OFF.GIF.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    512B

    MD5

    9b02e567a371437de7fd262b9e5c9476

    SHA1

    c3be1dcc770e6e42c2723213ab0f6c81ca8eb0ab

    SHA256

    abe15fa17eb14b8fdde38f751f775fdb02147f35c886dd9dfae33b2573000366

    SHA512

    ef3fcba574c1676d82d8f521b5c6746ad848085e32febf6dbc7d6a296831bffef132e613f9050f0a9cb5d5bb971c98b1fd5cd73a6369ed2ff4e9b8881fb6990e

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\Desert\TAB_ON.GIF.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    1KB

    MD5

    438f95277112ef36c2487841f49ccf5b

    SHA1

    c13cb6d176d7057827ee34d460437f032f3be064

    SHA256

    7df907a5a3ef72a6aeb5d7e9d367b00059df75cc672c45722f727a83a8eb3d36

    SHA512

    26ecafc0f66134b888ef971bc43a279aa2dff83b82ae1db5704e879d4042e83076f95695f606e72c8857f02651e872f235b91aad362b6ba459f057a292b3d2dd

  • C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.NO.XML.CB77D3A3468CE9362C4E39CA4C9CC388AA7D3E8709AD020E646A71776F9F58FF

    Filesize

    816B

    MD5

    2e364164efdeca80749688553eff955c

    SHA1

    bab01d2e54be62017d4e061daa99cfdbddc23ff0

    SHA256

    53715e908a54f53fc32559fa47a5bb3b86e74fe0b9b45e8acf766794aa6e058d

    SHA512

    d65c66ad0842ac87f0b5a3fad672b1b72142de1f8a893b29e8e8da0435b601024e5975be405537ad275bcafc2f179c106a16dde7ba9a77b93f47040ffea95f5e

  • memory/540-54-0x0000000000130000-0x000000000016C000-memory.dmp

    Filesize

    240KB

  • memory/540-55-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

    Filesize

    256KB

  • memory/540-5403-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

    Filesize

    256KB

  • memory/540-5404-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

    Filesize

    256KB