Resubmissions

03-03-2024 01:34

240303-by6ttsbe94 10

03-03-2024 01:31

240303-bxkj7sbe62 7

Analysis

  • max time kernel
    117s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    03-03-2024 01:34

General

  • Target

    Ransomware/InfinityCrypt.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.

  • 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\Ransomware\InfinityCrypt.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware\InfinityCrypt.exe"
    1⤵
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow\TAB_OFF.GIF.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    352B

    MD5

    94f899f4bbd355ad13fcb0ea08d0d1f7

    SHA1

    e36380d407701f7aded2f9c9454f9dff2e2366d4

    SHA256

    93fd55d0da2af6366b6545fdc684b486f678133b4fcf14139c157b099a79cdd2

    SHA512

    72310afe3905b1af289616b97f84c456541c66ce5ac86cf81736a85a7f25d9e62cf834e9a41017ae61500ec2abd20a228e1a60299b47fc1b5b08f23269e09eea

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\FormsStyles\BrightYellow\TAB_ON.GIF.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    224B

    MD5

    cecff006f7b903ee9860641c731a9dcf

    SHA1

    ec598015908c67b758c73f45e408c3c80d2b8612

    SHA256

    f24a7c3fae3744510b63ba08f81cbe2958f451d6bd40ba287c839071b47c3a40

    SHA512

    0b48eb4140763723b205182eb1549bc859c77524e590f0c1b226bf2cf22cf92ea525cdbac6a65bd2253897cec0cf1ee268bdf3c43fc8ea8ef6b1d0fe988f1941

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH_F_COL.HXK.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    128B

    MD5

    086a9fc7d76ae74ed689aa0db63c19e1

    SHA1

    f3346809fc2287c7fa6cc1d21949492d4b64104b

    SHA256

    e3a7927acfba9e5701a1d84e95f59f8e9e173386ad7dd4061f4a31bb30d9c557

    SHA512

    b3f25ff512788eb21a3c8590f48ad0f1e68cbecd54cd2c4b61d1aa73bf20d11b5b75a7cdd996163d864f779d9bd8e838a1f4dc172ae152c4df7df1060cba3848

  • C:\Program Files (x86)\Microsoft Office\Office14\1033\INFOPATH_K_COL.HXK.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    128B

    MD5

    4e1b7833560e0c6d00804b6ae83d6a69

    SHA1

    1b39a768c4551ed459bf16371424b8e642d07c98

    SHA256

    086ef3cf7e4e6a6b65d3dfe7da43c8f7f0c9c880e22dcf56e4610d06555098d4

    SHA512

    01a7a30a2a14429476c5638be6f8871e19c13eb3e118f5a1b7b4c5e4eefc80fefe0dfff04ded255d2627466fa4c213c65373dab813c4b54d490fd563031f84cc

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\BabyBlue\BUTTON.GIF.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    192B

    MD5

    6a0e1211705e05d156f67d35e4670bad

    SHA1

    bceff5a7d1cd13aadc9ee8cece773251e4e1eed3

    SHA256

    8b7ecf5aa1e9fff71feced45a664ab10f892e02c0212738488fa2d165e1af907

    SHA512

    5d91279423710623f0e45897fd3a71e756d8667f4363fe03ebd5d5450b8683741d731fb5efb853ba5b47789b89993844892abbe66645b5bfb1ea12014616536a

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\Desert\TAB_OFF.GIF.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    512B

    MD5

    29ba8d84e094663ec8d63555c5bffd29

    SHA1

    3af9b4878b37092be345d221a8ea3a2b3e360f78

    SHA256

    934b1ed6e89e89a46aadfe745aab1bea2c73c82afeedcbae30925ae0b8ab2ff2

    SHA512

    0c7593112b1a9a7cf2ace9ff74cf571e38178d650a3e16f01f3012f483540f5ca3ac225339c51459d49c4a7c6fca8a5fe58ddbe6dda71a8e2fba19e2423fec33

  • C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormsStyles\Desert\TAB_ON.GIF.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    1KB

    MD5

    9b0008e7d4c3136770f0f141d3ca1c30

    SHA1

    12dd9c253f1843a1514260140e2af1135e9cad51

    SHA256

    88246a7abd4274a76b6f6b15d03edb0f43ce71e981c3d070cf1bad608423ced0

    SHA512

    304fed28186b0f19307b668160e64219d9dce9b575afcb55bb02e1436e7b6c7b2cda51f0459f166431b0281bfcf4bc619064a3cae33018a4e038d67554794312

  • C:\Program Files (x86)\Microsoft Office\Office14\OutlookAutoDiscover\YAHOO.NO.XML.F3058DA1219E82B6FCD803C4549092876CDADCD04F59A1820341737E03C95E79

    Filesize

    816B

    MD5

    575629df74d00c79918a41a1088dda00

    SHA1

    fb7278c1a0bd2cfff0fbc8c536ce22dfc61ccd18

    SHA256

    d811f153b5ca61d52d6f0fec56226bb81507eb676a3be86462af4f05f1fbf1d8

    SHA512

    a987e4170a65cef0e23d31608c0c78030d9b7af8ada7a664ef8f6cb42f05b4d62ea6912e13c23f4946764d095938817851122c065488e04605455314d1a274dc

  • memory/2156-3144-0x00000000743E0000-0x0000000074ACE000-memory.dmp

    Filesize

    6.9MB

  • memory/2156-3306-0x0000000004FD0000-0x0000000005010000-memory.dmp

    Filesize

    256KB

  • memory/2156-0-0x0000000000970000-0x00000000009AC000-memory.dmp

    Filesize

    240KB

  • memory/2156-2-0x0000000004FD0000-0x0000000005010000-memory.dmp

    Filesize

    256KB

  • memory/2156-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp

    Filesize

    6.9MB

  • memory/2156-5350-0x0000000004FD0000-0x0000000005010000-memory.dmp

    Filesize

    256KB