Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 08:01

General

  • Target

    67da6f5ed1373b2d46cfd8f1e9201970.exe

  • Size

    359KB

  • MD5

    67da6f5ed1373b2d46cfd8f1e9201970

  • SHA1

    1820da1f12be9f23a4de58bfb8d3bffc792b9754

  • SHA256

    74a6a6252fa238066d74712c4732b1d6dd517d8a7997ac366ae3f80f4e3aa2f4

  • SHA512

    a194c3f766b95a62fcf6927d0e90276f92a8b4c279fa3b882cecec7da3d380ce7882d4647e74e069f9b75149295ba90534897d757b00535f289201635308c787

  • SSDEEP

    6144:3jbeip2KAS0aEyBB+CMwQ8XCM66iO/PCWpBEaOltLKUPBXdRRLD1H5KPB:3uKAsEVC6qEJO/PdBQKGtpD1Zk

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

MyBot

C2

alka.ddns.net:4444

Mutex

610ba357edf3ec0f6e3dbbff929d8468

Attributes
  • reg_key

    610ba357edf3ec0f6e3dbbff929d8468

  • splitter

    Y262SUCZ4UJJ

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67da6f5ed1373b2d46cfd8f1e9201970.exe
    "C:\Users\Admin\AppData\Local\Temp\67da6f5ed1373b2d46cfd8f1e9201970.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c echo on error resume next:CreateObject("WScript.Shell").Run "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc",1: >"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"
        3⤵
        • Drops startup file
        PID:1784
      • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
        C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc" "K.abc" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:1156

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.ab_
    Filesize

    75KB

    MD5

    dd1453acce357e3d5f5bed5c4111eb03

    SHA1

    f53b6a4bd4dc74ae2bfcbb97fc34185fa48d5e50

    SHA256

    27714a112709c148cd89b1c15d4b5bd08067d80b27062f419aefe92617702447

    SHA512

    aca348a03eae12d280eed92542435d24e27b1c18c190e5f115f7cc1b57169200a4d3a55300cbf24ff67905c7f91af4b2796a15d7361b70178db67141c1d212f1

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    104KB

    MD5

    42ccd69a3be9618d329de0ea0fde3a81

    SHA1

    47e9897f303496eb9cd5883f9cdb283b6eee65d3

    SHA256

    14137fcc8697e967b251fd0fafbdf79af8db4c1a67f2eafe53756e3ad80a9bef

    SHA512

    33d95b20ce606441c89dbc575c8e884196a19db056ffd9d54a5e0c57f3928b0d064b6270e4abf033046606e0456156faba3f3a8e6a353e924a7461e61e46bfae

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    104KB

    MD5

    42ccd69a3be9618d329de0ea0fde3a81

    SHA1

    47e9897f303496eb9cd5883f9cdb283b6eee65d3

    SHA256

    14137fcc8697e967b251fd0fafbdf79af8db4c1a67f2eafe53756e3ad80a9bef

    SHA512

    33d95b20ce606441c89dbc575c8e884196a19db056ffd9d54a5e0c57f3928b0d064b6270e4abf033046606e0456156faba3f3a8e6a353e924a7461e61e46bfae

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    716KB

    MD5

    cd658c18f16aa91907a41bb791070458

    SHA1

    e3fffb5454624ff915e9a91bd41195e939eea933

    SHA256

    b7272f3176b6f08f01ce78fc7e7bcd674393784b4b79a59958f022ad1c22c671

    SHA512

    34a8b0a6d596263461f736a5db9de3ae5eefb1a1270247793514f038df91ed591e411e772efb574122a6a4fba2b9dea530a70782d7daea36b12b90a8a02ea972

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    716KB

    MD5

    cd658c18f16aa91907a41bb791070458

    SHA1

    e3fffb5454624ff915e9a91bd41195e939eea933

    SHA256

    b7272f3176b6f08f01ce78fc7e7bcd674393784b4b79a59958f022ad1c22c671

    SHA512

    34a8b0a6d596263461f736a5db9de3ae5eefb1a1270247793514f038df91ed591e411e772efb574122a6a4fba2b9dea530a70782d7daea36b12b90a8a02ea972

  • \Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    716KB

    MD5

    cd658c18f16aa91907a41bb791070458

    SHA1

    e3fffb5454624ff915e9a91bd41195e939eea933

    SHA256

    b7272f3176b6f08f01ce78fc7e7bcd674393784b4b79a59958f022ad1c22c671

    SHA512

    34a8b0a6d596263461f736a5db9de3ae5eefb1a1270247793514f038df91ed591e411e772efb574122a6a4fba2b9dea530a70782d7daea36b12b90a8a02ea972

  • \Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    716KB

    MD5

    cd658c18f16aa91907a41bb791070458

    SHA1

    e3fffb5454624ff915e9a91bd41195e939eea933

    SHA256

    b7272f3176b6f08f01ce78fc7e7bcd674393784b4b79a59958f022ad1c22c671

    SHA512

    34a8b0a6d596263461f736a5db9de3ae5eefb1a1270247793514f038df91ed591e411e772efb574122a6a4fba2b9dea530a70782d7daea36b12b90a8a02ea972

  • \Users\Admin\AppData\Local\Temp\IXP000.TMP\K.abc
    Filesize

    716KB

    MD5

    cd658c18f16aa91907a41bb791070458

    SHA1

    e3fffb5454624ff915e9a91bd41195e939eea933

    SHA256

    b7272f3176b6f08f01ce78fc7e7bcd674393784b4b79a59958f022ad1c22c671

    SHA512

    34a8b0a6d596263461f736a5db9de3ae5eefb1a1270247793514f038df91ed591e411e772efb574122a6a4fba2b9dea530a70782d7daea36b12b90a8a02ea972

  • memory/948-57-0x0000000000000000-mapping.dmp
  • memory/948-64-0x0000000000270000-0x0000000000275000-memory.dmp
    Filesize

    20KB

  • memory/1156-86-0x0000000000000000-mapping.dmp
  • memory/1380-80-0x0000000000402000-0x0000000000409600-memory.dmp
    Filesize

    29KB

  • memory/1380-77-0x000000000040951E-mapping.dmp
  • memory/1380-70-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-71-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-72-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-74-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-75-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-76-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-68-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-67-0x0000000000400000-0x0000000000978000-memory.dmp
    Filesize

    5.5MB

  • memory/1380-88-0x0000000074430000-0x00000000749DB000-memory.dmp
    Filesize

    5.7MB

  • memory/1380-81-0x0000000000402000-0x0000000000409600-memory.dmp
    Filesize

    29KB

  • memory/1380-66-0x0000000000300000-0x0000000000400000-memory.dmp
    Filesize

    1024KB

  • memory/1380-84-0x0000000074430000-0x00000000749DB000-memory.dmp
    Filesize

    5.7MB

  • memory/1380-85-0x0000000000409000-0x000000000040A000-memory.dmp
    Filesize

    4KB

  • memory/1784-62-0x0000000000000000-mapping.dmp
  • memory/2028-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB