Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 18:59

General

  • Target

    2024-05-24_6982d0bc08c42d7cb462347b3fb2d61a_cobalt-strike_cobaltstrike.exe

  • Size

    7.4MB

  • MD5

    6982d0bc08c42d7cb462347b3fb2d61a

  • SHA1

    3a222804dc931aa4d2f8aab9a2b6b679a7f40bc2

  • SHA256

    e1307090db4f72c4027ce54e7e1ab50d934b5e0384cecf2399f60e0cdd4ae319

  • SHA512

    8edf79d023341a05f5ee966071cacf278db9af476deed5103725a5862323613cea3a31a00a7f7ddab2f5609b72debeaf93f8c4faa336220130841f6ea71cf553

  • SSDEEP

    98304:bGUjSb/X0Z3y/t2uDN8nsk/39999999999eEN3JjAUtw6MT4nR8CZqXebhnp3aJT:bGUGb/X0Zi/t2uDN8qurYmd08uDB

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 7 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 14 IoCs
  • Modifies system certificate store 2 TTPs 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-24_6982d0bc08c42d7cb462347b3fb2d61a_cobalt-strike_cobaltstrike.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-24_6982d0bc08c42d7cb462347b3fb2d61a_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:2176

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Lateral Movement

Replication Through Removable Media

1
T1091

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

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

    7.5MB

    MD5

    9a707a3d984b87c01575f2eca0c8ccec

    SHA1

    6681c8004af0182fb73651f4bcd9bcb51ad20cd1

    SHA256

    cba70c4a1bb094eb6d8ed386b0b9d939104e255bb567a87cdb87271dbcd6d9b7

    SHA512

    7861108e2abb0484575a098ed4cdceacef50d00e6bf51cfbe4235e7f3546e70080832a21289c927fac218134df4b8a9d6df4717fd4e31298124b6ad9d91941d9

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

    344B

    MD5

    f4076a368d434fcfff3dd0366cfcdd74

    SHA1

    8b92c0d4324f39eb22f499d1c9619f30cf26e56f

    SHA256

    8125e247ad000c064390286b1f81d2231b0a36fef618e6d86f7c80a928044710

    SHA512

    e300801502f53e310613fb81dd13e283f76dbbc6c30a64038d75295e57dc8e6358c59b52e04c7954b9da4b903d6e70684a19c5f1b1c26f6c13af93dd4da97468

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

    344B

    MD5

    b2e675165166902cbbd496cf7f5f7d6d

    SHA1

    40549b4ad81bc133e8313659b3d0538b7c58634c

    SHA256

    707272010ad78132fa21b738788634a40a1355b9e9b802dd80be944fc7a27998

    SHA512

    6a4d67b4770b685c2eaa6b96fc386c198b7fe1e9d65d64efea005f8add26ebdabdf81ea91668cdde6f75669d650eda981e2d0a48d3b75ee9ae4160d2befd90ab

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

    344B

    MD5

    9ef9e384db2d2d03c7cc9b4ccbca10b6

    SHA1

    5042a395c63c563a3b5be206303ca0df4087dadc

    SHA256

    105660a24a91167b6012ef4ec4f969757d86fce5e85ea21b1bf86474ab36c198

    SHA512

    f50a33a94310e6ddc704e86b3e2e3e169b66899405bfd8346c5a3f847edc79045a2ad3485dec62f63330107b91283d84ad551e41b601138991cfd7b9732c967e

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

    344B

    MD5

    1fb7ca81857b616fa0e5008f03f8a574

    SHA1

    b4413ace5f69061f35845636b8e666baa6ab44df

    SHA256

    df6b7a8124d98516f8aa615588c245c69ac569afcef03fbfd69b27eb1e587c14

    SHA512

    1ffee7665077baab89b3c1791746f0d1365dddaa36bc5eec192d6a219de91e51976809e73460946ad3dbaf156b0a44e0d2d5dc75a8c565b352b0c9235a908173

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

    344B

    MD5

    42954cfb02fbeffc330e561a2a3bc9bb

    SHA1

    f6fae73958d855dc3f414b897ce080ab73ea5069

    SHA256

    328900aa24210f4b77dda442b7cec1877eb646fb0586da57e5d39d16f6eb84d5

    SHA512

    70087909c9fe69df76a92b03b4f59848174d093f7eb54cd2a4e08335dca759d5cda5a80bbe41408e6d1452167997d9b7c930af1b198071e91e9dd4695fedaa1a

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

    344B

    MD5

    81b2ec06098821ab854357985605eae3

    SHA1

    5642b3ecf3a51779294d7ce82dd1a2ee12dee12e

    SHA256

    d90c696b14ca00cc8db25707c1ed34ca845da045d18796ba6db9955c0dab0ca0

    SHA512

    c79c2706a8f1a0cf02aa788c6e191b7847cb5fd26dba3c7a1c2a603b368b0bd5f17295605661f09658185daaff597fb4581be4233357eb364bade9585ac36dfc

  • C:\Users\Admin\AppData\Local\Temp\Cab1FD2.tmp
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar1FE5.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2176-1339-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-1855-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-1284-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-0-0x00000000003E0000-0x00000000003F0000-memory.dmp
    Filesize

    64KB

  • memory/2176-1436-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-1635-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-1852-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-238-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2236-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2291-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2348-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2785-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2903-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2949-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB

  • memory/2176-2952-0x0000000000400000-0x0000000000DBD000-memory.dmp
    Filesize

    9.7MB