Analysis

  • max time kernel
    121s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 03:05

General

  • Target

    0c77500a376402cfad864c1454b8df2a.exe

  • Size

    170KB

  • MD5

    0c77500a376402cfad864c1454b8df2a

  • SHA1

    4faf5cdade7e6011174b17ea8f6f141f9e071030

  • SHA256

    e99c6b040873bcd813f2a71d04a7e71f2888b8793f630575b50ceb59b9d9750a

  • SHA512

    b2c80afa32b45db1a70453de2a693aa50dd9a104ac857b8c1a6ddaec4875865480cdaa550b8cc35e12ef96e37d1b5cf854641b7854d716545aa36f7f5e11bad2

  • SSDEEP

    3072:+5ERKdsNSE8jWf+FnGevgjFA+WzmLpJhJ4RpS:+wB8qonGeoFA0lyp

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c77500a376402cfad864c1454b8df2a.exe
    "C:\Users\Admin\AppData\Local\Temp\0c77500a376402cfad864c1454b8df2a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\ln259426573\lrunner.exe
      "C:\Users\Admin\AppData\Local\Temp\\ln259426573\lrunner.exe" --bpl="eyJjbGlfdmVyIjogMiwgImluc3RhbGxfdXJsIjogImh0dHBzOi8vZ29zb2Z0ZGwubWFpbC5ydS9zd2l0Y2hlcl9wZF8zXzkuZXhlIiwgImxvY2F0aW9uX2lkIjogImxhbmRfcGFydG5lcl9saXRlIiwgInF1ZXJ5X3N0cmluZyI6ICJwYXJ0bmVyX25ld191cmw9aHR0cCUzQSUyRiUyRmJyby1saXRlLWZyZWUucnUlMkZhcGklMkZleHBlcmltZW50JTJGaW5zdGFsbCUzRnBiJTNEaHR0cCUzQSUyRiUyRnVuaXZlcnNhbHNyYy5uZXQlMkZhcGklMkZnb2FsJTNGdmlzaXRpZCUzRHZLbWwwcGRDZ3RQaHhBWmkmYW1wPSZvdnI9X19PVlImYW1wPSZndWlkPV9fR1VJRCZhbXA9JnJmcj04NzAwMDAiLCAidHMiOiAxNjI0MjU4MzkzfQ=="
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Mail.Ru\Id

    Filesize

    38B

    MD5

    d673b4a0d90dc5df0b5b6f5b0747c757

    SHA1

    175050c6001bb4573f2a33efbf75f90efe9d0b9b

    SHA256

    017e915d1d04ffe9c6178b91df4ead4b385aac2546ffdf3e9cc3646458bfc936

    SHA512

    f63f6a042481758bd162bb9d6ff91b12956b54b983f8b50344e89024c655d2be1e08e135da971bfecc5bf412c41de81d3fb308daad5f265cf262fed032881f34

  • \Users\Admin\AppData\Local\Temp\ln259426573\lrunner.exe

    Filesize

    1.9MB

    MD5

    59ec4314e2a54053778d3862368d639c

    SHA1

    a6e7e4383d2a49460f90f46d81bf31260fb71a50

    SHA256

    8dca302c817de6eab1783ed87139cbe2c0da2be2ccc077cabac12ac3237dab91

    SHA512

    48ec36e24c66df5951a35ff366aa80b70aef005119438e1a97dcc81b21e726a4f1eb7e9000026a75811e1fd7ef51255df28647b30140d136af223acf4e968834