Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    21/06/2024, 12:27

General

  • Target
    $LOCALAPPDATA/funmoods.exe
  • Size 1.6MB
  • Sample240621-pmw25stcnk
  • 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 2 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).

  • NSIS installer 6 IoCs
  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2276
    • 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
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2528
      • 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
        • Loads dropped DLL
        • Modifies registry class
        PID:1552
    • 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
      PID:2784

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

        nsd1024.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsd1024.tmp
        • Size 981B
        • SHA256 3456ee4f33c3d9afe21538154212f82db48396763c19ac6abbf5055624700421
        • MD5 SHA1 SHA512

        nsd1112.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsd1112.tmp
        • Size 156B
        • SHA256 70a1f136522b2aa72ba60732e51c4211a5eacc626e0d8bfe4052559d4e79431c
        • MD5 SHA1 SHA512

        nsdF82.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsdF82.tmp
        • Size 648B
        • SHA256 70e21826c44378a26bbe54120a7f5c4779b4ccade81f147c8754d651af5e105b
        • MD5 SHA1 SHA512

        nsi1044.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsi1044.tmp
        • Size 1KB
        • SHA256 a026fd5c2f4cd0ac952d12c7f0a1986a8b475163d5db10384e86a23c228d5123
        • MD5 SHA1 SHA512

        nsiF51.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsiF51.tmp
        • Size 537B
        • SHA256 fdeab9c4e862e391ba2221c27f895830bb3ca442740ed1e4868d2cc4ba817e36
        • MD5 SHA1 SHA512

        nsiFF4.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsiFF4.tmp
        • Size 929B
        • SHA256 39ecc2469f96b4599cbc7c51d72c890a6cea04999ce287ef3557939d70e17616
        • MD5 SHA1 SHA512

        nstF41.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nstF41.tmp
        • Size 482B
        • SHA256 fe08f15e75dca3e3bd9ff13fd498ec68af36dbe0784f6fb35191ba3d2195589b
        • MD5 SHA1 SHA512

        nsyF62.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\nsyF62.tmp
        • Size 592B
        • SHA256 81f4ee720d1ef3e411ada8f3836edf567fa459bc8dadde1aa10aae61cd6aef12
        • MD5 SHA1 SHA512

        NSISdl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsdC70.tmp\NSISdl.dll
        • Size 14KB
        • SHA256 dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9
        • MD5 SHA1 SHA512 SSDEEP

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.Admin\user.js
        • Size 1KB
        • SHA256 4b2ce588cd8c16ec220592d6c4a05825c6c2cb4f2695c66e815c4f0f0e42eabb
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.Admin\user.js
        • Size 406B
        • SHA256 1164c9ded36dbae9752329f8833729cb6b9ee0177abb8d00d1efeede0baf8ff4
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.Admin\user.js
        • Size 770B
        • SHA256 601b58193a5db091016df985ccd16f88f01eb52259db727a27ecdc1ad7f2311b
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.Admin\user.js
        • Size 876B
        • SHA256 7f4b926119737d7c17ee6f99b0b183d377bf7e206d0047db992f8b113ca1a899
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.default-release\user.js
        • Size 342B
        • SHA256 5aae9b1d6d1667206c36f40fb71fae63441c513c847a9cddb8164856acf757c9
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.default-release\user.js
        • Size 575B
        • SHA256 4bb1372059d9d917a8846fae8a228c001c07be4bb4d053b92e2d6e1eeb0ea647
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.default-release\user.js
        • Size 679B
        • SHA256 e8a5892f7fc31a4b9abf4c9b63ccc35929a30037c1c88cf1c2517c08ebdda319
        • MD5 SHA1 SHA512

        user.js

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\xkoyglns.default-release\user.js
        • Size 830B
        • SHA256 5966e67090a113c27a92adca775c48b576db8fad94dbb54b8f39a63d17e27bdc
        • MD5 SHA1 SHA512

        funmoods.dll

        • Path \Program Files (x86)\Funmoods\funmoods\1.5.11.16\bh\funmoods.dll
        • Size 236KB
        • SHA256 ba6870cd06e5700f918c30ee92391d8a77c99b3fda06372c42b35983ee88253c
        • MD5 SHA1 SHA512 SSDEEP

        funmoodsApp.dll

        • Path \Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodsApp.dll
        • Size 329KB
        • SHA256 e4b3df5ead761fe83da367d5e2ae1d416d0f89a572480deecc20c4b4295f17eb
        • MD5 SHA1 SHA512 SSDEEP

        funmoodsEng.dll

        • Path \Program Files (x86)\Funmoods\funmoods\1.5.11.16\funmoodsEng.dll
        • Size 535KB
        • SHA256 3d1b55bbb46e5788ca3e8ce68e515f52bdf63c0f53ceaad7236964eedf97f281
        • MD5 SHA1 SHA512 SSDEEP

        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

        FM4ffx.exe

        • Path \Users\Admin\AppData\Local\Temp\FNMD\FM\1.5.11.16\FM4ffx.exe
        • Size 319KB
        • SHA256 3ac3c700060a0487060724f3fd22faf70d5f633e69401641964d7ba4d6e6e570
        • 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\nsdC70.tmp\ExtractDLLEx.dll
        • Size 7KB
        • SHA256 73acba7dd477dfd6cf4249911f4e3c781196c7cf6b28425761dcb2d4f90c36c5
        • MD5 SHA1 SHA512 SSDEEP

        InetLoad.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\InetLoad.dll
        • Size 18KB
        • SHA256 bf01a1f272e0daf82df3407690b646e0ff6b2c562e36e47cf177eda71ccb6f6c
        • MD5 SHA1 SHA512 SSDEEP

        Processes.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\Processes.dll
        • Size 56KB
        • SHA256 3b5388e13dab53d53e08791f492ed7d3094a0cee51e9841af83ce02534e0621c
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP

        Time.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\Time.dll
        • Size 10KB
        • SHA256 b4a95a455e53372c59f91bc1b5fb9e5c8e4a10a506fa04aaf7be27048b30ae35
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        chrmPref.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\chrmPref.dll
        • Size 194KB
        • SHA256 c9ccc486c3353bad0d2819a42203c0db7ba98b4826b6a2b8d4deee832e4d3d8e
        • MD5 SHA1 SHA512 SSDEEP

        mt.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\mt.dll
        • Size 5KB
        • SHA256 6dc2644a389feeef9e0ac65e2c8b01fc18ca6e53b253f10efffcb117e0a852dd
        • MD5 SHA1 SHA512 SSDEEP

        nsisos.dll

        • Path \Users\Admin\AppData\Local\Temp\nsdC70.tmp\nsisos.dll
        • Size 5KB
        • SHA256 ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6
        • MD5 SHA1 SHA512 SSDEEP

        memory/2276-79-0x0000000001FF0000-0x0000000002002000-memory.dmp

        memory/2276-1584-0x0000000004120000-0x0000000004132000-memory.dmp