Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 00:37

General

  • Target

    2024-05-25_5cf22f8052e2c6fada4777dfa7d8e216_cobalt-strike_cobaltstrike.exe

  • Size

    8.0MB

  • MD5

    5cf22f8052e2c6fada4777dfa7d8e216

  • SHA1

    6a7a7a6d5cf4d2a2e4916fccd508756bbba07d46

  • SHA256

    016fba26faf81c46a44a2795e9fcd854eae9226e57f0c313aacb046a6609e8da

  • SHA512

    286f8084aa2c78fff17efc34f0a4d880ceb6e29085041fb50f6b8548b9ee29133104172232a45dba6416b6467a159d3949d9ee25cd8deb1e31d4e19b58721406

  • SSDEEP

    98304:bGUjSb/X0Z3y/t2uDN8nsk/39999999999eEN3JjAUtw6MT4nR8CZqXebhnp3aJc:bGUGb/X0Zi/t2uDN8qurYmd08uDC

Malware Config

Signatures

  • Cobalt Strike reflective loader 1 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Detects Reflective DLL injection artifacts 1 IoCs
  • Detects executables containing URLs to raw contents of a Github gist 15 IoCs
  • XMRig Miner payload 15 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Modifies Internet Explorer start page 1 TTPs 8 IoCs
  • Modifies system certificate store 2 TTPs 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-25_5cf22f8052e2c6fada4777dfa7d8e216_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-25_5cf22f8052e2c6fada4777dfa7d8e216_cobalt-strike_cobaltstrike.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops autorun.inf file
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:1628

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.msi.exe

    Filesize

    8.0MB

    MD5

    cd63fd82cfe2e77ce4833fbce66e07a5

    SHA1

    b2282b118656685d87e286b023276b075a6d0242

    SHA256

    9af6438e83000a0246d312c8995e965e18c262fa8cc70ba4fd329e3e25564ab4

    SHA512

    58d0516c713eda17bf7d501d98ae307625a8a795aca78d35d34ef039c3b1ce4a1122322def2a675a26c0e1555aa1bfcbdac9035dee42f9ebe62600750b4dee7a

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

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

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

    Filesize

    344B

    MD5

    e535e46e2893713974272af7394e8cc9

    SHA1

    43f0d117894d19774c0069a563a5e947d773c317

    SHA256

    8d1ab92f92583b50cbbe5da59dea3097fe887db4864e26a845585323199b823d

    SHA512

    297b90b970c5cbe708c60c5026325450c0430ebf7eb66a7b1c117de791f74c8eaf9e15f08ffc5093edc423aeb6f0889dd9450e3f07c322235407a371728f949d

  • C:\Users\Admin\AppData\Local\Temp\Tar2563.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/1628-331-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-162-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-273-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-290-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-0-0x00000000002E0000-0x00000000002F0000-memory.dmp

    Filesize

    64KB

  • memory/1628-458-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-701-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1004-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1007-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1008-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1011-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1014-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1075-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1078-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB

  • memory/1628-1079-0x0000000000400000-0x0000000000DBD000-memory.dmp

    Filesize

    9.7MB