Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2024, 00:47

General

  • Target
    4a385102b9a0e0a2b7b951666f0b2aad.exe
  • Size 8.0MB
  • Sample240108-a5kphahchl
  • SHA256 83b50542ca7f536b98e06f8d2a6db35e09802413ea10d0234733b37a2638f75d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cobaltstrike

C2
  • http://104.168.174.193:7777/Rpc

Attributes
  • user_agent

    Host: outlook.live.com Accept: */* User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko)

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Loads dropped DLL 17 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a385102b9a0e0a2b7b951666f0b2aad.exe
    "C:\Users\Admin\AppData\Local\Temp\4a385102b9a0e0a2b7b951666f0b2aad.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\4a385102b9a0e0a2b7b951666f0b2aad.exe
      "C:\Users\Admin\AppData\Local\Temp\4a385102b9a0e0a2b7b951666f0b2aad.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:1984

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\VCRUNTIME140.dll
        • Size 53KB
        • SHA256 85c734b1031d05cc057dd093bdb7567161c707f65aa1d1381a35e746e7d8a821
        • MD5 SHA1 SHA512 SSDEEP

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\VCRUNTIME140.dll
        • Size 35KB
        • SHA256 14ec61d4d3b22cf3519121266d9211117a16fcc6888769895335505a4cd2ccf2
        • MD5 SHA1 SHA512 SSDEEP

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_bz2.pyd
        • Size 87KB
        • SHA256 4e8f2e01b8af90084af5454135a870b3e46002a81df56c60482cf153400a0e6d
        • MD5 SHA1 SHA512 SSDEEP

        _bz2.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_bz2.pyd
        • Size 46KB
        • SHA256 e181b9ee0c9e3087bff2a6042b509396c9d8be8758f7bbc2f8e1fff79bb8f04b
        • MD5 SHA1 SHA512 SSDEEP

        _cffi_backend.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_cffi_backend.cp37-win_amd64.pyd
        • Size 11KB
        • SHA256 0f518bf6148e5d493141768a25542fd36eaa553776498013e2bfd61d70f31032
        • MD5 SHA1 SHA512 SSDEEP

        _cffi_backend.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_cffi_backend.cp37-win_amd64.pyd
        • Size 8KB
        • SHA256 1d0611effda4b7204fb7842bed8bc1ca861f7746666e4b2cc16b7f0043867006
        • MD5 SHA1 SHA512 SSDEEP

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_ctypes.pyd
        • Size 1KB
        • SHA256 8f4ec93b061f21517ab3c29507294d533299b71b94a344f8b9468acacfd91970
        • MD5 SHA1 SHA512

        _ctypes.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_ctypes.pyd
        • Size 35KB
        • SHA256 2f057986a8722a5df27b0c3af6c4202e040f3d5d1c08a4c5b2223d96ba8c8029
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_hashlib.pyd
        • Size 8KB
        • SHA256 3f74a27536306a5463e3aa268ed6d2c348ae3b675692bd3ecc7061f3adc1e614
        • MD5 SHA1 SHA512 SSDEEP

        _hashlib.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_hashlib.pyd
        • Size 18KB
        • SHA256 19fd0cafb3355ef326aa533ebc89739a5ff801c8c9f1024e3c55e9e942814b3a
        • MD5 SHA1 SHA512 SSDEEP

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_lzma.pyd
        • Size 85KB
        • SHA256 70df72984204fc1e1dc56ccfd55aef34d132779ab6c838de5c6d1acf15a4ed83
        • MD5 SHA1 SHA512 SSDEEP

        _lzma.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_lzma.pyd
        • Size 29KB
        • SHA256 30096b89d8e6881a70c85ff6b6992e6de8035b43236c11f04e6009308d7fe8f4
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_socket.pyd
        • Size 74KB
        • SHA256 697e0a45ebe100dce1dc4e11d11cd9e2b60d74ef4c7df1cefbe0e334d3997f7a
        • MD5 SHA1 SHA512 SSDEEP

        _socket.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_socket.pyd
        • Size 52KB
        • SHA256 c26cb2f17f2c00f3c586a90099c786f6ed73b5ce5494a5660e0b711d189fb4ce
        • MD5 SHA1 SHA512 SSDEEP

        _ssl.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\_ssl.pyd
        • Size 121KB
        • SHA256 74be594d02bca5ac096ae2d34786628a873e00f231e922d7842d2cd0ceedc33a
        • MD5 SHA1 SHA512 SSDEEP

        base_library.zip

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\base_library.zip
        • Size 27KB
        • SHA256 8dd088237af52246317ddd78dcd823793c4e97c2db771b68ab3bbcdab2690772
        • MD5 SHA1 SHA512 SSDEEP

        _constant_time.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\cryptography\hazmat\bindings\_constant_time.cp37-win_amd64.pyd
        • Size 5KB
        • SHA256 d47788686ecf2e0738cee24d2ea977ed5c9eb82517274204e5b28f44bdfffea6
        • MD5 SHA1 SHA512 SSDEEP

        _constant_time.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\cryptography\hazmat\bindings\_constant_time.cp37-win_amd64.pyd
        • Size 1KB
        • SHA256 94127fc9ad54f5a1b55e1cf513646a03561a56178ddcbd61a64c854f8c25021c
        • MD5 SHA1 SHA512

        _openssl.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\cryptography\hazmat\bindings\_openssl.cp37-win_amd64.pyd
        • Size 9KB
        • SHA256 f50a8ceb5738b9b058347b5b40161370e91509b18c95b6de6645d1c98561c945
        • MD5 SHA1 SHA512 SSDEEP

        _padding.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\cryptography\hazmat\bindings\_padding.cp37-win_amd64.pyd
        • Size 1KB
        • SHA256 ee3e85d92545cfe5f93f1fab8e71558a432f7946b4ddf680831a027b4e942b8c
        • MD5 SHA1 SHA512

        _padding.cp37-win_amd64.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\cryptography\hazmat\bindings\_padding.cp37-win_amd64.pyd
        • Size 6KB
        • SHA256 e9db9b3d834e27adc1093b370c01afd53775fc20bf986dd369dad3b432b982e4
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\libcrypto-1_1.dll
        • Size 30KB
        • SHA256 3f7076eef6bc2d88f0f9959ee8715abd8eca7a9d0bf0dffcf6248e63d2d63e6a
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\libcrypto-1_1.dll
        • Size 36KB
        • SHA256 f159887664caddcd777d87eacde6a043127d39a0dad6f5c52b0d25ee1d5a3306
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\libssl-1_1.dll
        • Size 4KB
        • SHA256 aee0f88c2e17e95ce89b9fc00d0368052c9882553920975ff2991a0c87166efc
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\libssl-1_1.dll
        • Size 71KB
        • SHA256 6ade551e75c817d463d2d2d4738447c1958f796a79b630c7b89772433ad41cfc
        • MD5 SHA1 SHA512 SSDEEP

        python37.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\python37.dll
        • Size 158KB
        • SHA256 0d5b7d1f2bd346f6d4371cc266cd5271e88dc562c2fc8ea96e76133a814c5d45
        • MD5 SHA1 SHA512 SSDEEP

        python37.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\python37.dll
        • Size 72KB
        • SHA256 2179621eb0c20bc463edf7f89d81a4ad97fb37ee863a023f97bcc8f0742b5030
        • MD5 SHA1 SHA512 SSDEEP

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\select.pyd
        • Size 26KB
        • SHA256 1ce5454774bf7b280b11b2b94298d41787e9bde4466d157040dd6a0fd78e982d
        • MD5 SHA1 SHA512 SSDEEP

        select.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\select.pyd
        • Size 24KB
        • SHA256 2edfa248c11c6ca98203727fd6173631238102a4689d1ff2dd0e03cdc94663fc
        • MD5 SHA1 SHA512 SSDEEP

        ucrtbase.dll

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\ucrtbase.dll
        • Size 123KB
        • SHA256 1a640163067861d3ef01b85cb87886a7b80167a22746c0086669bde87b4f20b7
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\unicodedata.pyd
        • Size 57KB
        • SHA256 4fd443c770c40a26b2f5fb1ee1bf333a0430d42d5906a888389b05e32c063650
        • MD5 SHA1 SHA512 SSDEEP

        unicodedata.pyd

        • Path C:\Users\Admin\AppData\Local\Temp\_MEI21162\unicodedata.pyd
        • Size 43KB
        • SHA256 7bb46245e02ca4066572a4ef638a036a0ddd3c82a67e381b7ffbb2806fcb998b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1984-104-0x000001AFB17C0000-0x000001AFB17C1000-memory.dmp