Resubmissions

03-07-2024 22:59

240703-2yn7wszhlp 10

03-07-2024 16:13

240703-tn93lsyglf 10

03-07-2024 16:11

240703-tm84xsyfma 10

10-05-2024 16:25

240510-tw1h5shh47 10

24-08-2023 11:16

230824-nda8msdf8z 10

Analysis

  • max time kernel
    145s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    10-05-2024 16:25

General

  • Target

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

  • Size

    669KB

  • MD5

    ead18f3a909685922d7213714ea9a183

  • SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

  • SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

  • SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • SSDEEP

    6144:bLUHLyHlwFjxDi2nEZkQ4NXxp0XMgkBWPqdN/jGdfYY7SRA7j4YlvfYAAjJ:4uFi02nEZh4jp0XLuxGdgTm73vL

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\70d2d99e-ff63-4911-907a-dbfbf2951739" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2544
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2456
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2456 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1160
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 2412 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    1KB

    MD5

    30ba39f0d9dfc242bcf5a13148c65714

    SHA1

    f35a36a5dd87eec68ee6d1e621224995838f30f2

    SHA256

    6cb7722d1559158bb31024e172b224988f0963e043cb8f60065c94c0e9f5b0a8

    SHA512

    bf732a235af263d14562f0f10495e910f18affdf4dd1f1f0507c470de7e9cc0d3f122f4e114962ab3342c434d71b20e97ee78dde7339a42300cb5a394f500a45

  • 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\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    724B

    MD5

    8202a1cd02e7d69597995cabbe881a12

    SHA1

    8858d9d934b7aa9330ee73de6c476acf19929ff6

    SHA256

    58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

    SHA512

    97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    410B

    MD5

    6abfda842928035aba8741130a1161f0

    SHA1

    f6756558d5118600ecf2c66aacafb67a21738648

    SHA256

    35b383ad2068b0ff9681401d642b75cdcff810748d55bd558988e05d04e3de79

    SHA512

    5dccbaedac9fb3a65b077b939bf3acf28b46116513b55bb683c590c40c14aa7e6f0c7133d516f644ad5cb7054e2d5ddde3976f47f508dbd3f19e7965ed472aa5

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

    Filesize

    344B

    MD5

    b350ef6ed0185a2e828993c488705c8e

    SHA1

    39bfce8db1e895221328504d13afce5f837b1e3c

    SHA256

    6df990a99907e732b265b635e21eb4b79635f803203a0ac5a25c2dc8f1587917

    SHA512

    193c018d8ab51ed819798faaa172d333c8e1daa5c3a874a7c4f60286a200b2f48db451456e3fd5fca5976057760effcbaa36f7fbd46664a0178ee3983d279288

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    392B

    MD5

    7ad06ab7d793225edcd755c4d9035578

    SHA1

    99aa4811f446424ccdde0b58db1bb5c9e59579d1

    SHA256

    903926833f9f467b12fd5970ff8c0cbe672e67403a6e5cd560dad13edaab1a2d

    SHA512

    c90cf37709835f7c7d4af0266df63cbf3d1018b1236d322566544df969f4100ef7fc840853acc3d0b890486c777ba3bd076849e5064371d24ca34872e4211979

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    9f5ece05672272f371eaa6ee0566e650

    SHA1

    b5213806509975169c5b7ee0af038129ad92a18f

    SHA256

    d12d4b0276c3f587e0906c5169af065dc8673b3dee4a53117b134044ed6c24a2

    SHA512

    7e458c6d9fd4bdf0096b495c23438a97d808756e8d71bce40f7db4b0c21ca5da901ff8b56490a38535d78a8c6cd53d657f4b5b9113f9185efc88677de2c1d3c2

  • C:\Users\Admin\AppData\Local\70d2d99e-ff63-4911-907a-dbfbf2951739\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

    Filesize

    669KB

    MD5

    ead18f3a909685922d7213714ea9a183

    SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

    SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

    SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • C:\Users\Admin\AppData\Local\Temp\Tar38BD.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/1068-40-0x0000000003CA0000-0x0000000003D49000-memory.dmp

    Filesize

    676KB

  • memory/1068-41-0x0000000003CB0000-0x0000000003D59000-memory.dmp

    Filesize

    676KB

  • memory/1068-42-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1068-0-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1068-44-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB

  • memory/1068-45-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/1068-3-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/1068-2-0x0000000000580000-0x0000000000680000-memory.dmp

    Filesize

    1024KB

  • memory/1160-95-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/1160-86-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-43-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-64-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-68-0x0000000002530000-0x00000000025D9000-memory.dmp

    Filesize

    676KB

  • memory/2412-66-0x0000000002530000-0x00000000025D9000-memory.dmp

    Filesize

    676KB

  • memory/2412-65-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-63-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-47-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-97-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2412-101-0x0000000002530000-0x00000000025D9000-memory.dmp

    Filesize

    676KB

  • memory/2456-67-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2456-96-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2692-69-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/2692-98-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB