Analysis

  • max time kernel
    48s
  • max time network
    97s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 01:41

General

  • Target

    efdeb160f8acfc92c495e657a62308f65fdd9d19f10c93382d47a11c6c8e3578.exe

  • Size

    274KB

  • MD5

    44cd9cbc69a8df3c6a30bc8c63752e2b

  • SHA1

    746469d521b72ddaea0dd1d349e6cb29be58aaaa

  • SHA256

    efdeb160f8acfc92c495e657a62308f65fdd9d19f10c93382d47a11c6c8e3578

  • SHA512

    8af733a52b0b2ec448a391b9298e69dba4f03d201f5bedbc2343b3e47fe6650def5be697c40f2492ff6dbf18cd445ece18a17ca2668982757ca8edf5b693da02

  • SSDEEP

    6144:PsaocyLCLcZcTT9AL2eX0DdoGiE/U8/5qCyhA+KbYTxgwm5KNChl20Q:PtobWTS90+HE4lhANo40J

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efdeb160f8acfc92c495e657a62308f65fdd9d19f10c93382d47a11c6c8e3578.exe
    "C:\Users\Admin\AppData\Local\Temp\efdeb160f8acfc92c495e657a62308f65fdd9d19f10c93382d47a11c6c8e3578.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\installer.exe
      C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\installer.exe 4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe /t /dT131922352S /e6034637 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe
        "C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe" /t /dT131922352S /e6034637 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EDCF682921FE94F4A02A43CD1A28E6B

    Filesize

    604B

    MD5

    e7ed9b0571e14a4824cebee137d9bcd1

    SHA1

    59d9a27a741aee4bfc0605a287a88782cdafe6ff

    SHA256

    62f9b298a1f9e62f29c486f9cd2731a28302b9215656fd8b1c7c0071071b25ad

    SHA512

    6f6f379a5fbce3afbfb29b159bfe784ecf4b42672c5bc441e89383c54ccd210766388526748c48f9889cfdd5e126054a8d67971d69c46f37bb117e515ad9d400

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

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

    Filesize

    5B

    MD5

    5bfa51f3a417b98e7443eca90fc94703

    SHA1

    8c015d80b8a23f780bdd215dc842b0f5551f63bd

    SHA256

    bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

    SHA512

    4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EDCF682921FE94F4A02A43CD1A28E6B

    Filesize

    188B

    MD5

    36ea39c09893744e7f7dd5c99e1b233f

    SHA1

    cc57515ca27c94373187706329c51a4040356526

    SHA256

    47eabdef558d1f99c6d24ac6c625d5f2081cbd55eec8e2d90398db3a1ce4e788

    SHA512

    3b64d1af5d15f5d6f85959d0f085515b9b6858b47f4e7e280280b89217ea4f120d9bac56e2036c5f2b095bd00a86d95c70dfd805ad1bf6006a9762d38b9e4494

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

    Filesize

    342B

    MD5

    e627345820e756a4f9cccc92d9e14a5b

    SHA1

    3701b502950cb6889350abe4fef65002b3c3ec08

    SHA256

    8408a83324e2cca6edbe73223bcca5f02266c364397871ca7e7d33ce8153bcad

    SHA512

    dcc939b708c3e2efa72774aee31d41802acbf36af842c3b14a285ffb4af8a45c8f7fc21d4c7086b1a3d1e6852f745b3877a4f170108cc9442248cdbe3ec340d4

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

    Filesize

    404B

    MD5

    da7e81ff47fe81a0c429052b649dd61f

    SHA1

    5b0cae16175e16896c1b1af65cd59cc12eb915a0

    SHA256

    1db507c73c1d6a043c9d8e98422f7dba8e7998e44174007c628836dfa90a787b

    SHA512

    9cba430e68188153161eef3eb05ec05d88590625cff21f172332653703d6a86de62afb9427c32b2de90124660e79dd7ed9b89e7b9f15300590dcbf316cf83984

  • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

    Filesize

    256KB

    MD5

    6e68cf541f031c7de9da6ec8d86862aa

    SHA1

    115f143b5f585a27006159dc1b2d4d23a7af5295

    SHA256

    d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

    SHA512

    022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

  • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

    Filesize

    256KB

    MD5

    6e68cf541f031c7de9da6ec8d86862aa

    SHA1

    115f143b5f585a27006159dc1b2d4d23a7af5295

    SHA256

    d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

    SHA512

    022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

  • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\installer.exe

    Filesize

    214KB

    MD5

    7cf3bce5ecf2aea97b49e2eba8ca0aba

    SHA1

    543f5fc23df08f946488d27b2fb16b13b6311d1a

    SHA256

    7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736

    SHA512

    5f9184189940af27e25ae2988db8d15923dac81b2410c5fe3287f126fb50df43735fccb4e4d9f376e9f24700604c157aa1828622dab54014d9583a56ab698d8d

  • C:\Users\Admin\AppData\Local\Temp\nsy1B12.tmp\installer.exe

    Filesize

    214KB

    MD5

    7cf3bce5ecf2aea97b49e2eba8ca0aba

    SHA1

    543f5fc23df08f946488d27b2fb16b13b6311d1a

    SHA256

    7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736

    SHA512

    5f9184189940af27e25ae2988db8d15923dac81b2410c5fe3287f126fb50df43735fccb4e4d9f376e9f24700604c157aa1828622dab54014d9583a56ab698d8d

  • \Users\Admin\AppData\Local\Temp\nsy1B12.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

    Filesize

    256KB

    MD5

    6e68cf541f031c7de9da6ec8d86862aa

    SHA1

    115f143b5f585a27006159dc1b2d4d23a7af5295

    SHA256

    d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

    SHA512

    022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

  • \Users\Admin\AppData\Local\Temp\nsy1B12.tmp\installer.exe

    Filesize

    214KB

    MD5

    7cf3bce5ecf2aea97b49e2eba8ca0aba

    SHA1

    543f5fc23df08f946488d27b2fb16b13b6311d1a

    SHA256

    7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736

    SHA512

    5f9184189940af27e25ae2988db8d15923dac81b2410c5fe3287f126fb50df43735fccb4e4d9f376e9f24700604c157aa1828622dab54014d9583a56ab698d8d

  • \Users\Admin\AppData\Local\Temp\nsy1B12.tmp\nsExec.dll

    Filesize

    8KB

    MD5

    249ae678f0dac4c625c6de6aca53823a

    SHA1

    6ac2b9e90e8445fed4c45c5dbf2d0227cd3b5201

    SHA256

    7298024a36310b7c4c112be87b61b62a0b1be493e2d5252a19e5e976daf674ce

    SHA512

    66e4081a40f3191bf28b810cf8411cb3c8c3e3ec5943e18d6672414fb5e7b4364f862cba44c9115c599ac90890ef02a773e254e7c979e930946bc52b0693aad7

  • memory/1328-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

    Filesize

    8KB

  • memory/1560-61-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/1560-57-0x0000000000000000-mapping.dmp

  • memory/1560-76-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-63-0x0000000000000000-mapping.dmp

  • memory/1700-73-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB

  • memory/1700-74-0x0000000000979000-0x000000000098A000-memory.dmp

    Filesize

    68KB

  • memory/1700-75-0x00000000742C0000-0x000000007486B000-memory.dmp

    Filesize

    5.7MB