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Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    05/11/2023, 04:06

General

  • Target

    NEAS.2994aec8b96490396d0ca334d32a62f0_JC.exe

  • Size

    2.7MB

  • MD5

    2994aec8b96490396d0ca334d32a62f0

  • SHA1

    c48fa6469e84279b305293885d4f7be85ce4d3d8

  • SHA256

    82b8bf8acbfe4bbabe140bc8b0c7b94135983e08685e0b684853c764e89d2b7b

  • SHA512

    5c8e1933d520e37575f72289b8af63e8f865b8fc378ba2c9f5ab6b7090fc87243f8617ae3a4ca1f26e12161ea15c8a50437d79f1a16a68ced09670978a7a3e3a

  • SSDEEP

    49152:jqGRIgg2SirwkF9xdtb43lyGKCafpKkiwnaDahmPzpY4FPyazI:jxxLFfY/KCCpKk9aWMzZyaU

Score
8/10

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
  • ACProtect 1.3x - 1.4x DLL software 5 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 4 IoCs
  • UPX packed file 18 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 47 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 61 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.2994aec8b96490396d0ca334d32a62f0_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.2994aec8b96490396d0ca334d32a62f0_JC.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Loads dropped DLL
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2660
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C12924768105B622469952CEDC8C593C
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2944
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2560
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D0" "00000000000005B8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~1\COMMON~1\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • C:\Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

    Filesize

    344B

    MD5

    39d56206bd02cdfd12098dd6fd94d172

    SHA1

    4ca3cd2d6c4de4606677c6173e4a78ef7c740937

    SHA256

    b944458cc9ce2da68c4858fd8bd8fe1ed73bb8ec278eeb910bf32ecb002ddb0c

    SHA512

    afc83eedee8eb5ff775c52bc42a3d2adc23cea97949c590dbfeebab996881f223bd7f46e3de9b02ab929572f9d9e8dfbab4afa009dcfcf988b716e9125affa77

  • C:\Users\Admin\AppData\Local\Temp\CabB2DB.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cab

    Filesize

    247KB

    MD5

    cc064d4b81619991de8131a86ad77681

    SHA1

    88d80d86cc20c27d7d2a872af719300bd2bb73f9

    SHA256

    913ee5a1cae3e5a1872b3a5efaaa00c58e4beb692492b138f76967da671b0477

    SHA512

    5aff0eb26cfc187bf58721b2b6d73357d9f1e66d1ac5340ad9ddc08b40ad0eda27a144cb3b650604637a7476c282ded83ed890de98a73ccaf0cc021da3a9eb25

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi

    Filesize

    2.6MB

    MD5

    b20bbeb818222b657df49a9cfe4fed79

    SHA1

    3f6508e880b86502773a3275bc9527f046d45502

    SHA256

    91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

    SHA512

    f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

  • C:\Windows\Installer\MSIB7CD.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

  • C:\Windows\Installer\f76b23f.msi

    Filesize

    2.6MB

    MD5

    b20bbeb818222b657df49a9cfe4fed79

    SHA1

    3f6508e880b86502773a3275bc9527f046d45502

    SHA256

    91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

    SHA512

    f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \Windows\Installer\MSIB7CD.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

  • memory/2144-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-28-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-172-0x0000000001000000-0x0000000001297000-memory.dmp

    Filesize

    2.6MB

  • memory/2144-34-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-171-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-58-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-161-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-89-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2144-5-0x0000000001000000-0x0000000001297000-memory.dmp

    Filesize

    2.6MB

  • memory/2144-29-0x0000000001000000-0x0000000001297000-memory.dmp

    Filesize

    2.6MB

  • memory/2660-17-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2660-170-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2660-33-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2944-82-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2944-168-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2944-55-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB