Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    19/01/2025, 10:20

General

  • Target
    $LOCALAPPDATA/funmoods.exe
  • Size 1.6MB
  • Sample250119-mc71jsvjcj
  • SHA256 73db5f6b89963d6692e3c43c8f3e5265ec4512ce87fe652e9ec3a4a0bb036db8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NSIS installer 6 IoCs
  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$LOCALAPPDATA\funmoods.exe
    "C:\Users\Admin\AppData\Local\Temp\$LOCALAPPDATA\funmoods.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ie.exe
      "C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ie.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodssrv.exe
        "C:\Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodssrv.exe" /RegServer
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2212
    • C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ffx.exe
      C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ffx.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        uninstall.exe

        • Path C:\Program Files (x86)\Funmoods\funmoods\1.5.11.16\uninstall.exe
        • Size 130KB
        • SHA256 4dae85611b9fd18f44c36f330762ca7dae3842604999d6a5edd3d416b4ab0841
        • MD5 SHA1 SHA512 SSDEEP

        FM4ffx.exe

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ffx.exe
        • Size 319KB
        • SHA256 3ac3c700060a0487060724f3fd22faf70d5f633e69401641964d7ba4d6e6e570
        • MD5 SHA1 SHA512 SSDEEP

        nsjA974.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsjA974.tmp
        • Size 876B
        • SHA256 a6eaca415d5c6a8a914ff74da628e6c15f0e9c7c1627fc83abe2457833b78109
        • MD5 SHA1 SHA512

        nsjAA17.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsjAA17.tmp
        • Size 232B
        • SHA256 ae772e2758e24c1f34e85d06df5a16cf95b30cb4fa050a92f3864eee535e9ae2
        • MD5 SHA1 SHA512

        nsjAA6F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsjAA6F.tmp
        • Size 781B
        • SHA256 26d87589cc04d9efb96e499dada972f2bc30aa841f0ed19e33234c829984a7d4
        • MD5 SHA1 SHA512

        nszA987.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nszA987.tmp
        • Size 1KB
        • SHA256 94048c80ae4ec4b3f30beedc269fa00e5dc9ecae89b6647d98d32d3902b99cdc
        • MD5 SHA1 SHA512

        NSISdl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\NSISdl.dll
        • Size 14KB
        • SHA256 dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9
        • MD5 SHA1 SHA512 SSDEEP

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.Admin\user.js
        • Size 592B
        • SHA256 a5b6350663036dfb0b77c6cf2bb377426b2c6ef445af42453aea0690546a7e42
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.Admin\user.js
        • Size 1KB
        • SHA256 de334d328b085743334085d0cc70d26ac9d1429ecde0f4980706aee64ef1a8e0
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.default-release\user.js
        • Size 398B
        • SHA256 702fd2d7f46ea7a193a03b42d28048c5d72b42cfec773e9371ac932cc9f26425
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.default-release\user.js
        • Size 575B
        • SHA256 682b3a3eb7a3e7695d228371cc0a312f2af6a8b9be91b9006d16c92509f3a2bf
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.default-release\user.js
        • Size 679B
        • SHA256 40c3a91f4169aee9ec3e3e2c4559ed53da0d743e3336e73e6cc54287041d2219
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\n3lsnn48.default-release\user.js
        • Size 882B
        • SHA256 c85f0cad49f53a35583c24a6e8c989ac9469f8a1deb5299dd8eb19ef23acbba1
        • MD5 SHA1 SHA512

        funmoodsTlbr.dll

        • Path \Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodsTlbr.dll
        • Size 245KB
        • SHA256 b1fa4dacf9656e31588eebeca1f831c72a33d9affca07ede0d5f5d113ec14aaf
        • MD5 SHA1 SHA512 SSDEEP

        funmoodssrv.exe

        • Path \Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodssrv.exe
        • Size 398KB
        • SHA256 93587b81f4e717b25a6e5fd2fb7158d7fb825f79af1c02ed0a61d5de15b6327b
        • MD5 SHA1 SHA512 SSDEEP

        FM4ie.exe

        • Path \Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ie.exe
        • Size 1.1MB
        • SHA256 abcde03656f4c6f51d4d4c788ece555581b8c7b52bfe1c18ef70678cb3a2e872
        • MD5 SHA1 SHA512 SSDEEP

        ExtractDLLEx.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\ExtractDLLEx.dll
        • Size 7KB
        • SHA256 73acba7dd477dfd6cf4249911f4e3c781196c7cf6b28425761dcb2d4f90c36c5
        • MD5 SHA1 SHA512 SSDEEP

        InetLoad.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\InetLoad.dll
        • Size 18KB
        • SHA256 bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c
        • MD5 SHA1 SHA512 SSDEEP

        Processes.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\Processes.dll
        • Size 56KB
        • SHA256 3b5388e13dab53d53e08791f492ed7d3094a0cee51e9841af83ce02534e0621c
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP

        Time.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\Time.dll
        • Size 10KB
        • SHA256 b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        chrmPref.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\chrmPref.dll
        • Size 194KB
        • SHA256 c9ccc486c3353bad0d2819a42203c0db7ba98b4826b6a2b8d4deee832e4d3d8e
        • MD5 SHA1 SHA512 SSDEEP

        mt.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\mt.dll
        • Size 5KB
        • SHA256 6dc2644a389feeef9e0ac65e2c8b01fc18ca6e53b253f10efffcb117e0a852dd
        • MD5 SHA1 SHA512 SSDEEP

        nsisos.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjA6AC.tmp\nsisos.dll
        • Size 5KB
        • SHA256 ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
        • MD5 SHA1 SHA512 SSDEEP

        memory/2508-1584-0x0000000002790000-0x00000000027A2000-memory.dmp

        memory/2508-79-0x0000000001D80000-0x0000000001D92000-memory.dmp