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Analysis

  • max time kernel
    68s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 00:09

General

  • Target

    5bebf979dd82efd302b548c79757c05593e851a25d465c8dd4f4e45a09d284b5.exe

  • Size

    274KB

  • MD5

    c41077f9a6d98fbcff5a0888dfc564d2

  • SHA1

    d58f5f1d79354064712de3b14b5b3930fc2a0f87

  • SHA256

    5bebf979dd82efd302b548c79757c05593e851a25d465c8dd4f4e45a09d284b5

  • SHA512

    c896cf994972a49a334b2382ce28996d74bf7a169b5c975daa5943ee5c7d06b7ca283e4db9168a0f6fdbb2fa4859266669b824281693002991d26ac59e907e9e

  • SSDEEP

    6144:DsaocyLCvoSOcbE+3lBIR2gwxwAOjm42c1r8sPYJYHvTWt1Cs:Dtob0MP2gweANBct8qY3ks

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5bebf979dd82efd302b548c79757c05593e851a25d465c8dd4f4e45a09d284b5.exe
    "C:\Users\Admin\AppData\Local\Temp\5bebf979dd82efd302b548c79757c05593e851a25d465c8dd4f4e45a09d284b5.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\i5.exe
      C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\i5.exe 4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe /t /dT131962018S /e5818302 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe
        "C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe" /t /dT131962018S /e5818302 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4632

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\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

    Filesize

    5B

    MD5

    5bfa51f3a417b98e7443eca90fc94703

    SHA1

    8c015d80b8a23f780bdd215dc842b0f5551f63bd

    SHA256

    bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

    SHA512

    4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

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

    Filesize

    188B

    MD5

    7d8c19c6bb14b6c0416986081871a236

    SHA1

    886bc24eef5ebac44883c4a67c7efe21724471e3

    SHA256

    84c0019a5ebd69446a9c56bce7ad8c6520e0654be9f02282561fb84a126def97

    SHA512

    c6a34a26bb06ed22f36eba4b30c1fd1991d77e4408ffe0961a4054ffcb5ae87fc1d3abdd25ade0497c3d4ee3f3169f6cd82f5c2c7ee98c8c08de9884c3f2f115

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

    Filesize

    404B

    MD5

    1de2ae2c27ec2a69845780dcdb3fcad0

    SHA1

    c09f9748487b98fde36827f4b567c32bd667932f

    SHA256

    7917ca7227c880d5b63ea303c0670ef7a0be594af61cf7b78cbc5bc2293b7602

    SHA512

    c0afb1fd94c45f71b224fbb056f4cc8062758f8d790bda65661e70dce31544eb58e12c9009ca76790a4f0eca4b05063d2d3bdb91842c77c5771f2e0ea582115c

  • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

    Filesize

    256KB

    MD5

    6e68cf541f031c7de9da6ec8d86862aa

    SHA1

    115f143b5f585a27006159dc1b2d4d23a7af5295

    SHA256

    d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

    SHA512

    022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

  • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

    Filesize

    256KB

    MD5

    6e68cf541f031c7de9da6ec8d86862aa

    SHA1

    115f143b5f585a27006159dc1b2d4d23a7af5295

    SHA256

    d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

    SHA512

    022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

  • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\i5.exe

    Filesize

    214KB

    MD5

    0b168b79397a1c3d5a181787e27ea323

    SHA1

    1867e953755169de011fd12009c2f42f300a9d47

    SHA256

    c681e32d308452ee7c24eeebb335ee86cfe42783db2289ef2caa0d0671b53d5a

    SHA512

    3b3e2ff7ad58a677cfbd22dec0c294e0b27ec0b81e8e6e20f45ac228c90472318ec0bec15d6689180b73061b94ea750049688ee5ed95a4e1d205eb94e7d0a250

  • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\i5.exe

    Filesize

    214KB

    MD5

    0b168b79397a1c3d5a181787e27ea323

    SHA1

    1867e953755169de011fd12009c2f42f300a9d47

    SHA256

    c681e32d308452ee7c24eeebb335ee86cfe42783db2289ef2caa0d0671b53d5a

    SHA512

    3b3e2ff7ad58a677cfbd22dec0c294e0b27ec0b81e8e6e20f45ac228c90472318ec0bec15d6689180b73061b94ea750049688ee5ed95a4e1d205eb94e7d0a250

  • C:\Users\Admin\AppData\Local\Temp\nsvD6BF.tmp\nsExec.dll

    Filesize

    8KB

    MD5

    249ae678f0dac4c625c6de6aca53823a

    SHA1

    6ac2b9e90e8445fed4c45c5dbf2d0227cd3b5201

    SHA256

    7298024a36310b7c4c112be87b61b62a0b1be493e2d5252a19e5e976daf674ce

    SHA512

    66e4081a40f3191bf28b810cf8411cb3c8c3e3ec5943e18d6672414fb5e7b4364f862cba44c9115c599ac90890ef02a773e254e7c979e930946bc52b0693aad7

  • memory/808-136-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/808-145-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/808-148-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/4632-144-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/4632-146-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB

  • memory/4632-147-0x00000000740B0000-0x0000000074661000-memory.dmp

    Filesize

    5.7MB