Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    24-03-2023 08:54

General

  • Target

    Downloads/c620d1f1f0d646823126ac3f36c5a780.exe

  • Size

    6.0MB

  • MD5

    c620d1f1f0d646823126ac3f36c5a780

  • SHA1

    4d223a430bc46a7f1d593157a72cdebd6b81ca25

  • SHA256

    d71ceb1d1942fdbb2183e090a04f1e47c91b712b6b270eb97dae68b5108b1179

  • SHA512

    2478712aefd2668b1790dec287e10366051f0fc65379916233ff3bf0b2199f60e70c3f2cfe097557f6a7dfa6ef0dc05f5584f2df1cf0d83b91f54d1ca47578b4

  • SSDEEP

    49152:XOsUVz23udrb/TovO90d7HjmAFd4A64nsfJ4WBtcdRZAaruMzvG5EEmr1SZAtMuq:V3uWRTh8uREj7+6Qi

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://image.shop.10010.com:443/mall_100_100.html

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    image.shop.10010.com,/mall_100_100.html

  • http_header1

    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

  • http_header2

    AAAACgAAAD5Db250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL3gtd3d3LWZvcm0tdXJsZW5jb2RlZDsgY2hhcnNldD1VVEYtOAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAMFJlZmVyZXI6IGh0dHBzOi8vc2hvcC4xMDA4Ni5jbi9tYWxsXzEwMF8xMDAuaHRtbAAAAAcAAAAAAAAADQAAAAUAAAAIX19mb3JtaWQAAAAJAAAAFHNyY2hmcm9tPW5SS2p4elpSUnh4AAAACQAAABJmaWVsZG5hbWU9Q3pMdUV4S2wAAAAJAAAAFHNlYXJjaHNvcnRpZD1NYnpTRW5CAAAABwAAAAEAAAANAAAAAgAAACphaWRfPTUyMjAwNTcwNSZhY2N2ZXI9MSZzaG93dHlwZT1lbWJlZCZ1YT0AAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    9472

  • polling_time

    30000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\runonce.exe

  • sc_process64

    %windir%\sysnative\runonce.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCf6fXQZp2dX7ZR50qOVSD5fLQRYS6gu44RAt3qH16LrAf9BPABjSV1aO5P+QiZnrDf59QMUR+bVpV6RD3vogMuuBC5w/FkPRjdB/PoEiqvBzqfEl0LJZDrujPA+jrPbpef2Md1eSSov/YsYWAUBjE80sWJXSPPTvEZ9VWeRqKSPQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.03243264e+08

  • unknown2

    AAAABAAAAAEAAAglAAAAAgAACCUAAAACAAACyAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /ajax/recharge/recharge.json

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4044.62 Safari/537.36

  • watermark

    100000

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Modifies system certificate store 2 TTPs 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Downloads\c620d1f1f0d646823126ac3f36c5a780.exe
    "C:\Users\Admin\AppData\Local\Temp\Downloads\c620d1f1f0d646823126ac3f36c5a780.exe"
    1⤵
    • Modifies system certificate store
    PID:1052

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

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

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

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

    342B

    MD5

    4ef53e1353c5cf5f2aeffdd9f7b47f55

    SHA1

    4190153d3df04a77ae35ec9c1a1f1678c3018429

    SHA256

    6c2016243eafb4ae91fc6b4c1f1ad1da4bc8128db7fe52a5cabb4b0979f55fce

    SHA512

    619e467983f402d5e684e2db9d16a7ccaf228b1fdfdd8077b8ea7e3cb510340520a6c229a5a28c75ac4b165e627106ac29933c948ac1e2aa4d5c11fc310155c3

  • C:\Users\Admin\AppData\Local\Temp\CabF6E.tmp
    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Tar107F.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • memory/1052-55-0x0000000028930000-0x000000002897F000-memory.dmp
    Filesize

    316KB