Analysis

  • max time kernel
    140s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    29-09-2024 14:21

General

  • Target

    setup.exe

  • Size

    3.9MB

  • MD5

    81e69b29c4c09391a12b665e7661f48e

  • SHA1

    b103b694d12544c9db444badd9e2263d219698b1

  • SHA256

    81e45c1e6d6a718624159e116e6daa8c1547f39bef7f56163303e7eca8abfae1

  • SHA512

    5476b9fa6967aefcb73793c965224c93d2ab46268830fcb71c69bc864e22e0cb92512959fe7a728ee77c2bde00e3ce9eda64d015ff1ef34273292707680c0042

  • SSDEEP

    98304:QhVVJqioKMFh1qKsbZcMgsGwNmlCNE4CJgcMyfQP/4:QhV1pMzHQCMFGImHgcM54

Malware Config

Signatures

  • Detects Strela Stealer payload 2 IoCs
  • Strela stealer

    An info stealer targeting mail credentials first seen in late 2022.

  • Loads dropped DLL 9 IoCs
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 31 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    PID:2412
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x500
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsu908D.tmp\ioSpecial.ini

    Filesize

    572B

    MD5

    d5087cda70f8ba74d411bf8bba520858

    SHA1

    2e640304a3735217153c7202330dd9f0c8c25f50

    SHA256

    b1d426325fb6a09069b0ee90d9af74106a100106d1efae6662553009184adf12

    SHA512

    2d14c44d2b8a0266e8790dfafb437f28eaad96a716f0a06a3edf297692157e75db972a26ca77a0938bdc40d376c3e41a510a7d8d29bc74712b8670af18de037e

  • C:\Users\Admin\AppData\Local\Temp\nsu908D.tmp\ioSpecial.ini

    Filesize

    710B

    MD5

    e433aa2d6d77c7dab2a9f868b8c60a96

    SHA1

    30e1c5ba56ea182b46d368c79deb0890c7ce271d

    SHA256

    3f856de83a6fd03f228b515fd644a857ae320f28acb274dabe0a526f1a6f20a2

    SHA512

    1ef5052ab58c7405e4ec27b9e6c66fa0c3ffa41e420f4aab580125c6930a67f071b02abcb9af7640e8df756f46e95408833b28782e9934381af1edd0034c91a1

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\AdvSplash.dll

    Filesize

    6KB

    MD5

    13cc92f90a299f5b2b2f795d0d2e47dc

    SHA1

    aa69ead8520876d232c6ed96021a4825e79f542f

    SHA256

    eb1ca2b3a6e564c32677d0cdc388e26b74ef686e071d7dbca44d0bfa10488feb

    SHA512

    ff4e6e6e7104568fc85ef3a3f0494a5c7822a4ceaf65c584ad534f08f9a472a8d86f0a62f1f86343c61e2540b2254714b7ea43e4b312ff13d8271ff069386fa3

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\Bass.dll

    Filesize

    101KB

    MD5

    a8af308ff01b4477657955fbf0cc8408

    SHA1

    0794c059f0326e4a71be8a3ee4ac17a657d90d88

    SHA256

    14a38f56be50a3829eb1eda2a908da2de5913f81d5cb01d8b668593d0fc36594

    SHA512

    9e221967db95d4b86bf311891193dfd1515806aa0d43198d3bc26a17d77f06f212ab9dba1ca8575f50d224380e8b109529faccf2f56daac834da83a83677a0fd

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\GetVersion.dll

    Filesize

    8KB

    MD5

    e013b625f5ae1e2f0b442cf39c0069df

    SHA1

    9ec785b63279144c091366badda65278c4cdee20

    SHA256

    16dd6da98b7e53d374830cd4c644c01b112955f8487a285f34dc0353e9cfac15

    SHA512

    306f7e674d119d129db48012c43f825bffabd078fac8518aea9d514b0787752a2e876bda2ad15df7332bfc8cfba38a0d1be17ee7c58a27e09678fce9aec58418

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\NSIS_SkinCrafter_Plugin.dll

    Filesize

    5.8MB

    MD5

    028251654a4d65509aa8ccb5f2ee284a

    SHA1

    4a4ad468a86df6b903002be4f8919017fea0c152

    SHA256

    8b25cf3f7aa82fadccb2ce615ce0e40c5a8a3ea7bc51180a92173ee113a0ccfe

    SHA512

    f252670bca0da9e8e2c519a6ef4ad6dd0c4e548aeb7566693a7d203e73e63345fc58683072020ef771d836429bed1d7b4fdf105aa3e62a969e9c8d39556e1d2d

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\SkinCrafter.dll

    Filesize

    792KB

    MD5

    8fea8fd177034b52e6a5886fb5e780bd

    SHA1

    99f511388a2420d53b8406baed48ba550842eaad

    SHA256

    546dddc7a31609b5bc3dc8ecef6f6782b77613853c54171fc32314c08a69e8de

    SHA512

    5d82a3b9cf9d69049e6278a6d835b8a9a386c97ae9a69cf658675b0a8751a344d0da1ee704e9bb9023dab7cd77fdca684bdc90837960b583eef0bb4324498696

  • \Users\Admin\AppData\Local\Temp\nsu908D.tmp\System.dll

    Filesize

    11KB

    MD5

    c17103ae9072a06da581dec998343fc1

    SHA1

    b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

    SHA256

    dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

    SHA512

    d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

  • \Windows\SysWOW64\mfc71.dll

    Filesize

    1.0MB

    MD5

    1fd3f9722119bdf7b8cff0ecd1e84ea6

    SHA1

    9a4faa258b375e173feaca91a8bd920baf1091eb

    SHA256

    385ea2a454172e3f9b1b18778d4d29318a12be9f0c0c0602db72e2cce136e823

    SHA512

    109d7a80a5b10548200d05ab3d7deb9dc2ae8e40d84b468184895eb462211078ecdcb11f01eb50c91c65a924f8e592cd63b78e402dcaea144ff89c11f2ab07d6

  • \Windows\SysWOW64\msvcr71.dll

    Filesize

    340KB

    MD5

    ca2f560921b7b8be1cf555a5a18d54c3

    SHA1

    432dbcf54b6f1142058b413a9d52668a2bde011d

    SHA256

    c4d4339df314a27ff75a38967b7569d9962337b8d4cd4b0db3aba5ff72b2bfbb

    SHA512

    23e0bdd9458a5a8e0f9bbcb7f6ce4f87fcc9e47c1ee15f964c17ff9fe8d0f82dd3a0f90263daaf1ee87fad4a238aa0ee92a16b3e2c67f47c84d575768edba43e

  • memory/2412-13-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-228-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-23-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-123-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-22-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-161-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-29-0x00000000044D0000-0x0000000004A9D000-memory.dmp

    Filesize

    5.8MB

  • memory/2412-14-0x0000000001DBC000-0x0000000001DBD000-memory.dmp

    Filesize

    4KB

  • memory/2412-227-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-37-0x0000000004AA0000-0x0000000004B6C000-memory.dmp

    Filesize

    816KB

  • memory/2412-229-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-230-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-231-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-232-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-233-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-234-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-235-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-236-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB

  • memory/2412-237-0x0000000001D70000-0x0000000001DBD000-memory.dmp

    Filesize

    308KB