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Overview

overview

10

Static

static

a549c31c9f...c3.exe

windows7-x64

10

a549c31c9f...c3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    186s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 14:30

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General

  • Target

    a549c31c9f8dd7d11dfa3b9b3ff12c293ed6a5f3e735d9c6578f07f9153b0fc3.exe

  • Size

    556KB

  • MD5

    032b91072be80281729f7c1f885eea80

  • SHA1

    d34598ac37a8ac46d8472e2868bb59fd5b9111ce

  • SHA256

    a549c31c9f8dd7d11dfa3b9b3ff12c293ed6a5f3e735d9c6578f07f9153b0fc3

  • SHA512

    0aca360435a62b9e13fe0c94ba1b77b9a500091528a54aff5415da8c1853f785d3d6c01c2bddbb66dfd39cead52720d9fa81b0a387c0124d2487da10b4f1dfd2

  • SSDEEP

    12288:u7Lo8Rs90X41cnOOWB2KpyYK4BVqZDx2mpmHPW9GROsI8w:u7L1yMgcnOds44Fp2PWUDI8

Score
10/10
evasionpersistencespywarestealerupx

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Executes dropped EXE 10 IoCs
  • UPX packed file 18 IoCs

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

    upx
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 54 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:752
    • C:\Users\Admin\AppData\Local\Temp\a549c31c9f8dd7d11dfa3b9b3ff12c293ed6a5f3e735d9c6578f07f9153b0fc3.exe
      "C:\Users\Admin\AppData\Local\Temp\a549c31c9f8dd7d11dfa3b9b3ff12c293ed6a5f3e735d9c6578f07f9153b0fc3.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Users\Admin\NB4wr66jY4.exe
        C:\Users\Admin\NB4wr66jY4.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1244
        • C:\Users\Admin\yzguj.exe
          "C:\Users\Admin\yzguj.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4360
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del NB4wr66jY4.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:308
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:3848
      • C:\Users\Admin\2xek.exe
        C:\Users\Admin\2xek.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4372
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:1780
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          PID:1088
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          PID:3128
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4380
        • C:\Users\Admin\2xek.exe
          "C:\Users\Admin\2xek.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:4788
      • C:\Users\Admin\3xek.exe
        C:\Users\Admin\3xek.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4504
        • C:\Users\Admin\AppData\Local\94128f3e\X
          *0*bc*5ec283bb*31.193.3.240:53
          4⤵
          • Executes dropped EXE
          PID:2084
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del a549c31c9f8dd7d11dfa3b9b3ff12c293ed6a5f3e735d9c6578f07f9153b0fc3.exe
        3⤵
          PID:1320
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:1148
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1780 -ip 1780
      1⤵
        PID:2916

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\2xek.exe
        Filesize

        164KB

        MD5

        c94ab34868ec4624e1e7e95e234a48ed

        SHA1

        b419f37f2fabdac6598cf59fbc505de59a51de77

        SHA256

        9772234bc94afb938998bf85c318dc800223993125e5ffa8dbe44a667ca71897

        SHA512

        e2f602193c89ec094956e427dbf586fc1f39c0c329067f140c0af6b21cdc080138f717721b83eae1315adbe78de12107903438c8153deaf93f319ebb265b74e5

        Download Submit

      • C:\Users\Admin\3xek.exe
        Filesize

        251KB

        MD5

        2ce19a9f18fc524fe115603b4ad9b9aa

        SHA1

        30b4c119d4b915826b020b12b7a6d5c7c5fd3c0e

        SHA256

        6fbf9cc7aea0d80f7706603a0b8b11938a9a0e34557adb18b711d08cec13d7a3

        SHA512

        c060d4c01799b6bd51947534359547c394d7f412d8edf2f3b3c6ac33ac13b66eee9503495cc5997ec9a4df162518422a5f4e13d75fe274baee1580d8e6a752b6

        Download Submit

      • C:\Users\Admin\3xek.exe
        Filesize

        251KB

        MD5

        2ce19a9f18fc524fe115603b4ad9b9aa

        SHA1

        30b4c119d4b915826b020b12b7a6d5c7c5fd3c0e

        SHA256

        6fbf9cc7aea0d80f7706603a0b8b11938a9a0e34557adb18b711d08cec13d7a3

        SHA512

        c060d4c01799b6bd51947534359547c394d7f412d8edf2f3b3c6ac33ac13b66eee9503495cc5997ec9a4df162518422a5f4e13d75fe274baee1580d8e6a752b6

        Download Submit

      • C:\Users\Admin\AppData\Local\94128f3e\X
        Filesize

        38KB

        MD5

        72de2dadaf875e2fd7614e100419033c

        SHA1

        5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

        SHA256

        c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

        SHA512

        e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

        Download Submit

      • C:\Users\Admin\AppData\Local\94128f3e\X
        Filesize

        38KB

        MD5

        72de2dadaf875e2fd7614e100419033c

        SHA1

        5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

        SHA256

        c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

        SHA512

        e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

        Download Submit

      • C:\Users\Admin\NB4wr66jY4.exe
        Filesize

        224KB

        MD5

        5f3f430c5d00e2a2e4e1aae0e09078b9

        SHA1

        48a6be11c16e694c42fa0a0d05783177ba1c4adb

        SHA256

        b1799329b5f9bffacf98c4d5542dc7e1b4021e6b3b0970bc1aec0f6094e0d867

        SHA512

        3a41d2084d82a4aaeb6136c629f4dd84a813759570b3ffea2856e3358c2fb11fa19c4c6c5924f78cb0d1e297c7f928ecf4c019cafee15e1aa3fefa3eb05b0873

        Download Submit

      • C:\Users\Admin\NB4wr66jY4.exe
        Filesize

        224KB

        MD5

        5f3f430c5d00e2a2e4e1aae0e09078b9

        SHA1

        48a6be11c16e694c42fa0a0d05783177ba1c4adb

        SHA256

        b1799329b5f9bffacf98c4d5542dc7e1b4021e6b3b0970bc1aec0f6094e0d867

        SHA512

        3a41d2084d82a4aaeb6136c629f4dd84a813759570b3ffea2856e3358c2fb11fa19c4c6c5924f78cb0d1e297c7f928ecf4c019cafee15e1aa3fefa3eb05b0873

        Download Submit

      • C:\Users\Admin\yzguj.exe
        Filesize

        224KB

        MD5

        349512e6112c85456b8eee39764987e3

        SHA1

        4efb00f780b14b09a19ba5d6b2cc1ac6f961b4b4

        SHA256

        f446c4efa91d87bf29b876c38927697a51f9d0e885b09598f2ff2057450742ef

        SHA512

        8f8fd19239d124393245f3285bb4c883a0c86e19cb56733a7ba94da3b2f091fb72e92e4b03e6f1cb7f679afe45d28df8d2a5288b9cdd2c7312153185cc990af2

        Download Submit

      • C:\Users\Admin\yzguj.exe
        Filesize

        224KB

        MD5

        349512e6112c85456b8eee39764987e3

        SHA1

        4efb00f780b14b09a19ba5d6b2cc1ac6f961b4b4

        SHA256

        f446c4efa91d87bf29b876c38927697a51f9d0e885b09598f2ff2057450742ef

        SHA512

        8f8fd19239d124393245f3285bb4c883a0c86e19cb56733a7ba94da3b2f091fb72e92e4b03e6f1cb7f679afe45d28df8d2a5288b9cdd2c7312153185cc990af2

        Download Submit

      • memory/1088-153-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

        Download

      • memory/1088-188-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

        Download

      • memory/1088-186-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

        Download

      • memory/1088-184-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

        Download

      • memory/1088-197-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

        Download

      • memory/3128-183-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

        Download

      • memory/3128-185-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

        Download

      • memory/3128-157-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

        Download

      • memory/3128-187-0x0000000000400000-0x0000000000455000-memory.dmp

        Filesize

        340KB

        Download

      • memory/4380-161-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

        Download

      • memory/4380-165-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

        Download

      • memory/4380-167-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

        Download

      • memory/4380-171-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

        Download

      • memory/4504-190-0x0000000000741000-0x0000000000776000-memory.dmp

        Filesize

        212KB

        Download

      • memory/4504-189-0x0000000030670000-0x00000000306C7000-memory.dmp

        Filesize

        348KB

        Download

      • memory/4504-194-0x0000000030670000-0x00000000306C7000-memory.dmp

        Filesize

        348KB

        Download

      • memory/4788-166-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/4788-174-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/4788-182-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/4788-173-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

        Download

      • memory/4788-177-0x0000000000400000-0x000000000040A000-memory.dmp

        Filesize

        40KB

        Download