Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2023 12:10

General

  • Target

    05665999.exe

  • Size

    718KB

  • MD5

    e5701891f96e5727971f223551b64f45

  • SHA1

    dcc476ee7b6c9bb75195c1ab81512d5c6efacd40

  • SHA256

    1a7c622544bc7fce75780a488bbf9d66a68176405c40d196a7afb7124244bd41

  • SHA512

    2c8a44b882bce13e226ab0a7941c57a8b383c793626cf15a16e81abbcaa033b78a536cbeb03e2bdbd4c923102bb6d967f90e4cc38570fb2f5ebd32706da9e998

  • SSDEEP

    12288:jccr2M0k0CTUxid6rfBCWxskGxo5PlAXY5sMIGH/c4j:IcpBjN6rfBCWmx42I5HIGfcY

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/1049356312187772968/RhGBI5VRUa2070gE61YTrZzr1G_QOPG0A5RvRIUDuTemlVPlposGOfVeFkkYgdFFQO5I

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 52 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05665999.exe
    "C:\Users\Admin\AppData\Local\Temp\05665999.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\Insidious.exe
      "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1980
    • C:\Users\Admin\AppData\Local\Temp\loader.exe
      "C:\Users\Admin\AppData\Local\Temp\loader.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1008
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:576
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:576 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1508

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    342B

    MD5

    03feba8b777902cfb8e9b350930dc7af

    SHA1

    fbcd000c058c52ed17748cad4c25de457dcf4812

    SHA256

    30447ec6f5c344093a46743c91ba309250b9cc44cd7a5f2882ed3385b4005e68

    SHA512

    0dd39f4f89dd6dbcf25a3cd52497e4cbb23eadcbe611e4f30a459eb666b30ec08e169f546047b647244b78486eb78949ad9d4f76167f94802567cf7041ffe3b1

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

    Filesize

    344B

    MD5

    282dd5c68849c6251432769c57aee962

    SHA1

    2281518f4600c5d2f6c0e2569da0a421bc702f65

    SHA256

    3a87584ce1f24c4bff027b74b28cdc67a7a189bbb6311e52cc380b29672904ea

    SHA512

    a88c632d1632ade26359d8c8a988474875fa649322e967fec25823bb1781e6b6576f53f0684bbedd10c4ff2efb2e0f607e338b9b05e4a94eb908b88437a6dc0e

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

    Filesize

    344B

    MD5

    e48aeb18e32a696cec0c8dc5642e0cbe

    SHA1

    02564fcecb86359603a03fe05da2845e927741e7

    SHA256

    2dafb07c5016cc9a1a803f6cd1b69944214c861cf25495cb54291507641b84fb

    SHA512

    a5675cc1daebea41a4bec34c6de2e42a6a1bd797f500052b0c2bbdb4b22fdabba97e1702788d1c212ffa204a3f788824fd718e5c0c9c41746a163d9c9e8cec1b

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

    Filesize

    344B

    MD5

    f24b84d62216e78284a4af02d2c1403a

    SHA1

    6f3cfec631f33f664a43dff56ba7fa78d6f7bdb4

    SHA256

    8f85b92a8dfc86eea9bcf524c564d777bf2143d5497a405b26f20e30d14d3acb

    SHA512

    d7ac13c523f2f8e0bc9d27ef1c3605ede6bed51dc2b4f9e090e73ad60a7bbcc55cb22d15dd7eace11c1a60eb35f4eb2a265dc42c6f95654d0da8660db60430ed

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

    Filesize

    344B

    MD5

    de2f9effa8c156f752837d6cfc3922dd

    SHA1

    6d7d5d1a517bdc74a9d8cbdffa93def48eb54bb3

    SHA256

    cef6791b19378b7b089134dae9ebf6d15ea08e61da374a933bdadd3aad26b2ea

    SHA512

    4cdf824c9b569fb005b5c9e628c815b208bb25a81be9d5abf4b2f559bc4430b41897abe28150e063d742ebb47ac6b6cc332c18015d6401d19262b29dff5a401d

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

    Filesize

    344B

    MD5

    436c4d4f2609eaddf9ab6a588ef0e2d9

    SHA1

    2b58e71d86e0d1434d925fda4f2ee8cca9a9b6f6

    SHA256

    d011d57059cb1453d1ee4e64fc5d5c81115e73fcdb1893f0a7bb3184612c2966

    SHA512

    94154a0b71bcf88ac162a5938828ced25c81301932ebe07a4bb0fcdc4e8ee46d69ab20bcf39bc5e01034533c657932c995226da1127b039a55e99a3164cb9e27

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

    Filesize

    344B

    MD5

    c2f0980dda22a220b2c9ea3ed3e012ce

    SHA1

    826ddac5873b892951c70c43d9d64f4bc83c1ee5

    SHA256

    c284f8bd9c869736f32e63a71b2613717395061c7aa6bd086c7ea80bac325c30

    SHA512

    fc36741c409cb9dea1399ae770536498893618ede9601478458bf5f8e4794acda25e4fc133dc2e6cecf7fe4580233efdf2a4e10b0aa9c29fa272142eae3c4520

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

    Filesize

    344B

    MD5

    4281edad2874aaf5fcb365793a9040bc

    SHA1

    4152993961da1914937b119bfaa5c6dd50f2961d

    SHA256

    f1d71e390860b5da46f04f1d2ad5816ebdaea98682f2280c2d274a56e3fc04d9

    SHA512

    7ac8eee492d5b7a1234f1cfca6a9b0f9a1b5cbe22866b6a49804235758b1a2a25bcbadc68df06f930dfa05a44a00b1862667117324e6896040c63713a86daefc

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

    Filesize

    344B

    MD5

    657991cb44ddf2282bde6c102dfeec4c

    SHA1

    696c5ee05a7319b04a51856e90bc94074c16eb39

    SHA256

    6d5b26527613eee44858b27db42ed6b50d264c76ae797abe90d5e570cd03dbe9

    SHA512

    73ac4475e83f2b78a311e40c0766c5aa5712c02db5b8040353f4b1a79bc2ee1f1adeb6ed77bb8ac87b78e0b1473062d6a6df5ac986c3ead86fcd1c494e7acb1a

  • C:\Users\Admin\AppData\Local\44\Process.txt

    Filesize

    437B

    MD5

    b0c867bbfafa2bec289c47c58f086e37

    SHA1

    3023ff9b895a7ee27777ae6784277dfa0a48afd6

    SHA256

    ed005ebe1bf0632fb61b1e9f408750ec82ec48681d1f7c3972bc7f4b2effeae1

    SHA512

    7af44eea8c53434828d4c7c3efd1a738bc56d9bb12f7235c7d92aee7bbed84c064bd3004163f265ad705da42ab43f0c7bf08f91bb5d9f8c0de21c0c50834f8fe

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DOMStore\W7UL7DO7\www.oracle[1].xml

    Filesize

    13B

    MD5

    c1ddea3ef6bbef3e7060a1a9ad89e4c5

    SHA1

    35e3224fcbd3e1af306f2b6a2c6bbea9b0867966

    SHA256

    b71e4d17274636b97179ba2d97c742735b6510eb54f22893d3a2daff2ceb28db

    SHA512

    6be8cec7c862afae5b37aa32dc5bb45912881a3276606da41bf808a4ef92c318b355e616bf45a257b995520d72b7c08752c0be445dceade5cf79f73480910fed

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\jo5ozfo\imagestore.dat

    Filesize

    5KB

    MD5

    3dab196c02a2efe0c72748439d2348df

    SHA1

    be5f16eabdbd300a121da07d47cea62c2b3d6445

    SHA256

    8dcec68ef9570fc5b712539eae7ed81c9b3010756d1590eb7b67bc626c2f635d

    SHA512

    07e9dc3b70596cf6c94299235f5755459e239224841afa3e9f7942ea9df50f4751aa052ccb52b180e426689c25152203cfc5278d404a28c7aa49d90cc2a78693

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RYXN1WWD\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\TOS3MI7U\favicon-32[1].png

    Filesize

    1KB

    MD5

    51db57e829efd1958c47eef011040d9e

    SHA1

    32dae01af230fffb57070054d5693ba66d191d5e

    SHA256

    e24f15815d2cf3e2bab2323a684dfc8b0b86ea3da044465765b0e35cfd50793c

    SHA512

    4545758b7fabbe8016fb2c5de71e156697a2e7cda866333df024087f454a6a0ff098928d5592680e0812e596d9fefbd54895845876db8c2b5c06ad879f4ce949

  • C:\Users\Admin\AppData\Local\Temp\Cab7F50.tmp

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Cab800E.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Insidious.exe

    Filesize

    274KB

    MD5

    082a96ffc0b5c79bba76f7614a855ee3

    SHA1

    b44a3ced7c9db4dc25ff5235d2b8e7ffb64200f7

    SHA256

    ee8cec604cd3b8273898f378a6a9490b7d530df3d7841c22b41b003d688543a9

    SHA512

    85dc97673d1967670e953897d51a9ca012860759a27b15d4668fb961184ecf2e49a7c32216bede507246828c4aa114eb8b04bec4579b096b38d0fa0f7603b526

  • C:\Users\Admin\AppData\Local\Temp\Insidious.exe

    Filesize

    274KB

    MD5

    082a96ffc0b5c79bba76f7614a855ee3

    SHA1

    b44a3ced7c9db4dc25ff5235d2b8e7ffb64200f7

    SHA256

    ee8cec604cd3b8273898f378a6a9490b7d530df3d7841c22b41b003d688543a9

    SHA512

    85dc97673d1967670e953897d51a9ca012860759a27b15d4668fb961184ecf2e49a7c32216bede507246828c4aa114eb8b04bec4579b096b38d0fa0f7603b526

  • C:\Users\Admin\AppData\Local\Temp\Tar7F51.tmp

    Filesize

    161KB

    MD5

    73b4b714b42fc9a6aaefd0ae59adb009

    SHA1

    efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

    SHA256

    c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

    SHA512

    73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

  • C:\Users\Admin\AppData\Local\Temp\Tar8091.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\AppData\Local\Temp\loader.exe

    Filesize

    610KB

    MD5

    1ff7c7c08621c82d68330f0f5a15fb46

    SHA1

    2930047d59c82f2c943bbbe766389474995617a7

    SHA256

    479c4f5c81bf090205a00f953c03400c3a411c731caffa75b67c280a4cbe5c81

    SHA512

    491ad95296a048b1fc609d8c9ceb8ba4383f8b452a8c273d9d869539adb2f7f8c343d9072acf4a86d4c0d9d679e7da6dcb8527484a728e3c32fb1c0f42370e67

  • C:\Users\Admin\AppData\Local\Temp\loader.exe

    Filesize

    610KB

    MD5

    1ff7c7c08621c82d68330f0f5a15fb46

    SHA1

    2930047d59c82f2c943bbbe766389474995617a7

    SHA256

    479c4f5c81bf090205a00f953c03400c3a411c731caffa75b67c280a4cbe5c81

    SHA512

    491ad95296a048b1fc609d8c9ceb8ba4383f8b452a8c273d9d869539adb2f7f8c343d9072acf4a86d4c0d9d679e7da6dcb8527484a728e3c32fb1c0f42370e67

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\DWWTQRVV.txt

    Filesize

    603B

    MD5

    bb9b5bea5681c4fa88d37ff4d24c9140

    SHA1

    212abe5e9c02542628cf164c1f049b10642f8217

    SHA256

    4fb20119cbd5260ce4ac0c36246e7fa7e14cc5273ec10edb6df236a3f4d4a772

    SHA512

    3db5745eb24fefae35d3903bdfa075d259b8e1c8e9be7fd6039e863bc2b227b4039969b4a4c661c131a305c583f4cf811151c7989e05098465c01401732e96aa

  • \Users\Admin\AppData\Local\Temp\Insidious.exe

    Filesize

    274KB

    MD5

    082a96ffc0b5c79bba76f7614a855ee3

    SHA1

    b44a3ced7c9db4dc25ff5235d2b8e7ffb64200f7

    SHA256

    ee8cec604cd3b8273898f378a6a9490b7d530df3d7841c22b41b003d688543a9

    SHA512

    85dc97673d1967670e953897d51a9ca012860759a27b15d4668fb961184ecf2e49a7c32216bede507246828c4aa114eb8b04bec4579b096b38d0fa0f7603b526

  • \Users\Admin\AppData\Local\Temp\loader.exe

    Filesize

    610KB

    MD5

    1ff7c7c08621c82d68330f0f5a15fb46

    SHA1

    2930047d59c82f2c943bbbe766389474995617a7

    SHA256

    479c4f5c81bf090205a00f953c03400c3a411c731caffa75b67c280a4cbe5c81

    SHA512

    491ad95296a048b1fc609d8c9ceb8ba4383f8b452a8c273d9d869539adb2f7f8c343d9072acf4a86d4c0d9d679e7da6dcb8527484a728e3c32fb1c0f42370e67

  • \Users\Admin\AppData\Local\Temp\loader.exe

    Filesize

    610KB

    MD5

    1ff7c7c08621c82d68330f0f5a15fb46

    SHA1

    2930047d59c82f2c943bbbe766389474995617a7

    SHA256

    479c4f5c81bf090205a00f953c03400c3a411c731caffa75b67c280a4cbe5c81

    SHA512

    491ad95296a048b1fc609d8c9ceb8ba4383f8b452a8c273d9d869539adb2f7f8c343d9072acf4a86d4c0d9d679e7da6dcb8527484a728e3c32fb1c0f42370e67

  • memory/1008-91-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/1980-90-0x000000001B2D0000-0x000000001B350000-memory.dmp

    Filesize

    512KB

  • memory/1980-71-0x0000000000290000-0x00000000002DA000-memory.dmp

    Filesize

    296KB