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Analysis

  • max time kernel
    218s
  • max time network
    308s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 01:46

General

  • Target

    69869449ef2736d638baa988e6254c7d0c854de27d2d6e7225bf9f1f3b4fedb6.exe

  • Size

    3.6MB

  • MD5

    a51b546bb1c42441a59008d0f44979a9

  • SHA1

    683c32a3fbeb6a500720a735b762f6bc17a03099

  • SHA256

    69869449ef2736d638baa988e6254c7d0c854de27d2d6e7225bf9f1f3b4fedb6

  • SHA512

    11132d82f7d77f223d8fa9dee7242d7b99b9a1c71b77a17a45e52c9be9cda5a3b5c037456495579281eaace2281d55f8bafd73ef4f47e14aaa1984e04fc6109d

  • SSDEEP

    98304:g7XBEdsK1Ukb0ItwokRqvyG+HjkRTDOKdY8JrsXcyM:sBEdHHKd0b6jufj9qXcyM

Score
10/10

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

85.31.46.167

Signatures

  • NyMaim

    NyMaim is a malware with various capabilities written in C++ and first seen in 2013.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69869449ef2736d638baa988e6254c7d0c854de27d2d6e7225bf9f1f3b4fedb6.exe
    "C:\Users\Admin\AppData\Local\Temp\69869449ef2736d638baa988e6254c7d0c854de27d2d6e7225bf9f1f3b4fedb6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Users\Admin\AppData\Local\Temp\is-HBUML.tmp\is-EDRV7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HBUML.tmp\is-EDRV7.tmp" /SL4 $180150 "C:\Users\Admin\AppData\Local\Temp\69869449ef2736d638baa988e6254c7d0c854de27d2d6e7225bf9f1f3b4fedb6.exe" 3511252 51712
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Program Files (x86)\PrintFolders\PrintFolders.exe
        "C:\Program Files (x86)\PrintFolders\PrintFolders.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:692
        • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\PrintFolders\PrintFolders.exe

    Filesize

    5.9MB

    MD5

    ec6a04699e775d6f377fe92d519584b4

    SHA1

    52e537d380eebf8f8d47bd4a1a970bb67834b92f

    SHA256

    63c58ba080fa5cf1cfa853cc60b9cea6d866da3454b3250b16b22b8278f0a203

    SHA512

    a8d1d01dfe5e72b705caba708d662c228ea785e464e38161daec1468ddb9a1042b0fae3df3b661a65d22e4bfce44b734c9a5724176ccb3d0bd0b3dfa9af94d6d

  • C:\Program Files (x86)\PrintFolders\PrintFolders.exe

    Filesize

    5.9MB

    MD5

    ec6a04699e775d6f377fe92d519584b4

    SHA1

    52e537d380eebf8f8d47bd4a1a970bb67834b92f

    SHA256

    63c58ba080fa5cf1cfa853cc60b9cea6d866da3454b3250b16b22b8278f0a203

    SHA512

    a8d1d01dfe5e72b705caba708d662c228ea785e464e38161daec1468ddb9a1042b0fae3df3b661a65d22e4bfce44b734c9a5724176ccb3d0bd0b3dfa9af94d6d

  • C:\Users\Admin\AppData\Local\Temp\is-HBUML.tmp\is-EDRV7.tmp

    Filesize

    643KB

    MD5

    363a4d2aa5d6cf5cbb2267cccf0c4436

    SHA1

    a4cdb756698ed28f522956166a6292e9e309dd9c

    SHA256

    b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021

    SHA512

    b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

  • C:\Users\Admin\AppData\Local\Temp\is-HBUML.tmp\is-EDRV7.tmp

    Filesize

    643KB

    MD5

    363a4d2aa5d6cf5cbb2267cccf0c4436

    SHA1

    a4cdb756698ed28f522956166a6292e9e309dd9c

    SHA256

    b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021

    SHA512

    b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

  • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • C:\Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • \Program Files (x86)\PrintFolders\PrintFolders.exe

    Filesize

    5.9MB

    MD5

    ec6a04699e775d6f377fe92d519584b4

    SHA1

    52e537d380eebf8f8d47bd4a1a970bb67834b92f

    SHA256

    63c58ba080fa5cf1cfa853cc60b9cea6d866da3454b3250b16b22b8278f0a203

    SHA512

    a8d1d01dfe5e72b705caba708d662c228ea785e464e38161daec1468ddb9a1042b0fae3df3b661a65d22e4bfce44b734c9a5724176ccb3d0bd0b3dfa9af94d6d

  • \Program Files (x86)\PrintFolders\PrintFolders.exe

    Filesize

    5.9MB

    MD5

    ec6a04699e775d6f377fe92d519584b4

    SHA1

    52e537d380eebf8f8d47bd4a1a970bb67834b92f

    SHA256

    63c58ba080fa5cf1cfa853cc60b9cea6d866da3454b3250b16b22b8278f0a203

    SHA512

    a8d1d01dfe5e72b705caba708d662c228ea785e464e38161daec1468ddb9a1042b0fae3df3b661a65d22e4bfce44b734c9a5724176ccb3d0bd0b3dfa9af94d6d

  • \Program Files (x86)\PrintFolders\PrintFolders.exe

    Filesize

    5.9MB

    MD5

    ec6a04699e775d6f377fe92d519584b4

    SHA1

    52e537d380eebf8f8d47bd4a1a970bb67834b92f

    SHA256

    63c58ba080fa5cf1cfa853cc60b9cea6d866da3454b3250b16b22b8278f0a203

    SHA512

    a8d1d01dfe5e72b705caba708d662c228ea785e464e38161daec1468ddb9a1042b0fae3df3b661a65d22e4bfce44b734c9a5724176ccb3d0bd0b3dfa9af94d6d

  • \Users\Admin\AppData\Local\Temp\is-CDDUQ.tmp\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-CDDUQ.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-CDDUQ.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-HBUML.tmp\is-EDRV7.tmp

    Filesize

    643KB

    MD5

    363a4d2aa5d6cf5cbb2267cccf0c4436

    SHA1

    a4cdb756698ed28f522956166a6292e9e309dd9c

    SHA256

    b5cd942dd7019c1cda1715e4ce942094c41ad1e7bc7c5f63fe3ab7d97bc5a021

    SHA512

    b5929be6e258a63557f376b50a40f6d465cbd372a88e7dcae7944faacb9181cd55873f52dee99cee2e3705596b3b55cb6f784db800f5a32f06e63b9ead3e7c70

  • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • \Users\Admin\AppData\Roaming\{846ee340-7039-11de-9d20-806e6f6e6963}\ZpmN3Gy6.exe

    Filesize

    72KB

    MD5

    3fb36cb0b7172e5298d2992d42984d06

    SHA1

    439827777df4a337cbb9fa4a4640d0d3fa1738b7

    SHA256

    27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

    SHA512

    6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

  • memory/692-75-0x0000000001D70000-0x000000000315F000-memory.dmp

    Filesize

    19.9MB

  • memory/692-70-0x0000000000400000-0x00000000017EF000-memory.dmp

    Filesize

    19.9MB

  • memory/692-82-0x0000000000400000-0x00000000017EF000-memory.dmp

    Filesize

    19.9MB

  • memory/692-76-0x0000000001D70000-0x000000000315F000-memory.dmp

    Filesize

    19.9MB

  • memory/692-77-0x0000000000400000-0x00000000017EF000-memory.dmp

    Filesize

    19.9MB

  • memory/692-78-0x0000000000400000-0x00000000017EF000-memory.dmp

    Filesize

    19.9MB

  • memory/692-80-0x0000000001D70000-0x000000000315F000-memory.dmp

    Filesize

    19.9MB

  • memory/692-89-0x0000000010000000-0x000000001001B000-memory.dmp

    Filesize

    108KB

  • memory/1084-57-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1084-55-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1084-54-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB

  • memory/1228-79-0x00000000031D0000-0x00000000045BF000-memory.dmp

    Filesize

    19.9MB

  • memory/1228-69-0x00000000031D0000-0x00000000045BF000-memory.dmp

    Filesize

    19.9MB