Analysis

  • max time kernel
    146s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    28-09-2023 01:30

General

  • Target

    a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe

  • Size

    1.3MB

  • MD5

    4a0d61fe2000566f8b688d18681c0b5a

  • SHA1

    c473e7bafd6351cb8f1870eadb73316cd5cb5e91

  • SHA256

    a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c

  • SHA512

    a9c84b0af7497ad780302583e2b6dc1c438451e18259fd25be4d3267b4a8125a6c31860017aba83879f8a703aaefbfd331ae63016468976f86572c2be7f248be

  • SSDEEP

    24576:s3yIf2H3CSfGxoBYocM4D8Ss5kHb291wOQO+XvnzHhMTfU8+LxD3Fwp:sF2HtfGyBxAm5S6m7mT+1F

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe
    "C:\Users\Admin\AppData\Local\Temp\a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe
      "C:\Users\Admin\AppData\Local\Temp\a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Users\Admin\AppData\Roaming\kingshakes.exe
        "C:\Users\Admin\AppData\Roaming\kingshakes.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:2928
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:700
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
        3⤵
          PID:2556
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2756
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
            4⤵
            • Creates scheduled task(s)
            PID:1536
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
          3⤵
            PID:2696
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2496
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2524
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              3⤵
              • Creates scheduled task(s)
              PID:2552
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\a5511e15b015d02f9475da2875c37dcdacdda81793f2324fe5d61d487187aa8c.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2544
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {B6A9597F-AC91-412A-9373-D93BBFBB88C0} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2880
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2824
              • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                3⤵
                • Executes dropped EXE
                PID:1152
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
                3⤵
                  PID:1660
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                  3⤵
                    PID:2264
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                      4⤵
                      • Creates scheduled task(s)
                      PID:2956
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\avast\avast.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                    3⤵
                      PID:2684
                  • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    2⤵
                    • Executes dropped EXE
                    PID:1688

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\kingshakes.exe

                  Filesize

                  245KB

                  MD5

                  0838ea6ef01e3577d1bfb57b5980c319

                  SHA1

                  35920bea7d7c0476c814aca6db53a284621ddeec

                  SHA256

                  05cc8ee98d1902da082fe76cefd10360d7da097ce1dee2ff060c00446cec0c5e

                  SHA512

                  381e122b5bfab2085fc0759740cef8313dd5d47d8a943e03b36342fab4620d30c5c6713bb3447c696a679f40c7d57d98d248f4770cadbd9369a6dd05ea10014f

                • C:\Users\Admin\AppData\Roaming\kingshakes.exe

                  Filesize

                  245KB

                  MD5

                  0838ea6ef01e3577d1bfb57b5980c319

                  SHA1

                  35920bea7d7c0476c814aca6db53a284621ddeec

                  SHA256

                  05cc8ee98d1902da082fe76cefd10360d7da097ce1dee2ff060c00446cec0c5e

                  SHA512

                  381e122b5bfab2085fc0759740cef8313dd5d47d8a943e03b36342fab4620d30c5c6713bb3447c696a679f40c7d57d98d248f4770cadbd9369a6dd05ea10014f

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • \Users\Admin\AppData\Roaming\kingshakes.exe

                  Filesize

                  245KB

                  MD5

                  0838ea6ef01e3577d1bfb57b5980c319

                  SHA1

                  35920bea7d7c0476c814aca6db53a284621ddeec

                  SHA256

                  05cc8ee98d1902da082fe76cefd10360d7da097ce1dee2ff060c00446cec0c5e

                  SHA512

                  381e122b5bfab2085fc0759740cef8313dd5d47d8a943e03b36342fab4620d30c5c6713bb3447c696a679f40c7d57d98d248f4770cadbd9369a6dd05ea10014f

                • memory/700-76-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-68-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-58-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-83-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/700-78-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/700-60-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-62-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-64-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-72-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/700-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1152-90-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1688-97-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1688-98-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2104-0-0x00000000000E0000-0x000000000022E000-memory.dmp

                  Filesize

                  1.3MB

                • memory/2104-47-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2104-3-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2104-4-0x0000000004A00000-0x0000000004A40000-memory.dmp

                  Filesize

                  256KB

                • memory/2104-1-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2104-5-0x0000000005090000-0x00000000051F0000-memory.dmp

                  Filesize

                  1.4MB

                • memory/2104-2-0x0000000004A00000-0x0000000004A40000-memory.dmp

                  Filesize

                  256KB

                • memory/2248-27-0x0000000000530000-0x0000000000538000-memory.dmp

                  Filesize

                  32KB

                • memory/2248-42-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2248-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2248-6-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-19-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-18-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-8-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-23-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-10-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-26-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2248-28-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2248-12-0x0000000000270000-0x00000000002D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2724-52-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2724-45-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2724-71-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2724-46-0x0000000000B50000-0x0000000000B90000-memory.dmp

                  Filesize

                  256KB

                • memory/2724-41-0x0000000001320000-0x00000000013C2000-memory.dmp

                  Filesize

                  648KB

                • memory/2724-53-0x0000000000B50000-0x0000000000B90000-memory.dmp

                  Filesize

                  256KB

                • memory/2724-56-0x0000000000390000-0x00000000003BC000-memory.dmp

                  Filesize

                  176KB

                • memory/2824-84-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2824-82-0x0000000001120000-0x0000000001160000-memory.dmp

                  Filesize

                  256KB

                • memory/2824-81-0x0000000001330000-0x00000000013D2000-memory.dmp

                  Filesize

                  648KB

                • memory/2824-85-0x0000000001120000-0x0000000001160000-memory.dmp

                  Filesize

                  256KB

                • memory/2824-80-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2824-95-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2928-55-0x0000000004670000-0x00000000046B0000-memory.dmp

                  Filesize

                  256KB

                • memory/2928-44-0x00000000011D0000-0x0000000001214000-memory.dmp

                  Filesize

                  272KB

                • memory/2928-48-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2928-51-0x0000000004670000-0x00000000046B0000-memory.dmp

                  Filesize

                  256KB

                • memory/2928-54-0x0000000074010000-0x00000000746FE000-memory.dmp

                  Filesize

                  6.9MB