Analysis

  • max time kernel
    172s
  • max time network
    230s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    07-05-2022 23:29

General

  • Target

    d42645562bb1cdc522100a017353eeb57b75be15e35ed9d1c225452469e72b0e.exe

  • Size

    515KB

  • MD5

    1ed9caa53a1c162c5c1d3d54ad8dfcd2

  • SHA1

    9933ba50d7fa299a2e1b7b0db71767ead0ff19a0

  • SHA256

    d42645562bb1cdc522100a017353eeb57b75be15e35ed9d1c225452469e72b0e

  • SHA512

    c6fd52990d0653f5483a2e59cfcaee66159d171afb0a3b4ab33246726331b28a2f712ee93a1228d94e36a908a7e2c7ab9f7170a9ccf7934e3f441b045228c839

Malware Config

Signatures

  • Poullight

    Poullight is an information stealer first seen in March 2020.

  • Poullight Stealer Payload 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d42645562bb1cdc522100a017353eeb57b75be15e35ed9d1c225452469e72b0e.exe
    "C:\Users\Admin\AppData\Local\Temp\d42645562bb1cdc522100a017353eeb57b75be15e35ed9d1c225452469e72b0e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\vbs.vbs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c bat.bat
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2000
        • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.sfx.exe
          OutBestAutsMens.sfx.exe -pOutBestAutsMens.exe -dC:\Users\Admin\AppData\Local\Temp
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1396
          • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
            "C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:888

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.sfx.exe
    Filesize

    352KB

    MD5

    38fc93be2d479d4bc35094362633bbdb

    SHA1

    58863aa2983d3fa3f3184f39215be8bcf9d365e6

    SHA256

    f0e889f12c5b97c0b8cba96af2bf4bac7e6ca31711b3002f424ffb3a25b4e334

    SHA512

    3a9449feeec5c80c895a4e8f6f1256b3985d28351dc607f1cac24f5017ab05f68382da4eca4948546a3f72a941520181158fa116478d749d45d28afadc5db8af

  • C:\Users\Admin\AppData\Local\Temp\OutBestAutsMens.sfx.exe
    Filesize

    352KB

    MD5

    38fc93be2d479d4bc35094362633bbdb

    SHA1

    58863aa2983d3fa3f3184f39215be8bcf9d365e6

    SHA256

    f0e889f12c5b97c0b8cba96af2bf4bac7e6ca31711b3002f424ffb3a25b4e334

    SHA512

    3a9449feeec5c80c895a4e8f6f1256b3985d28351dc607f1cac24f5017ab05f68382da4eca4948546a3f72a941520181158fa116478d749d45d28afadc5db8af

  • C:\Users\Admin\AppData\Local\Temp\bat.bat
    Filesize

    65B

    MD5

    a6c7b342f993b191ca6b10ee4f722881

    SHA1

    7a52671f7c9dbf6be80f0817cd9823c267363a32

    SHA256

    651eac6db66e4e61863b4fea2e282f5a99007fa32d9a70ff9f3775358882fb4f

    SHA512

    6e5d7d3325474df17ceca4c922e0efdc814e8aed7dd9803aa777c75e0475b0fc592520ded811a250f01ca62300407d0477776137abbe7e31b05ef1136f4271fe

  • C:\Users\Admin\AppData\Local\Temp\vbs.vbs
    Filesize

    89B

    MD5

    dc06d3c7415f4f6b05272426a63e9fd1

    SHA1

    2a148ec726cde2a19222c03ebf2cf48e8a5c171f

    SHA256

    101467d0422de2fafce3dc4e7f28343f7eab7f132a42843a9498b0fe3ffa9093

    SHA512

    d2063eddd861715db497adaf3440fc120aed019aa309ca2010d7b19e26987648c67f590e141df31b7c660cfebb33f052861fa2d1db5017e5f97dd4437155f76a

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.exe
    Filesize

    97KB

    MD5

    58be8f739eb5b24eedce748dfc19d481

    SHA1

    531521c7605101969c3128cbd9be285971ede508

    SHA256

    3876d69d383cd4e2a04d497e58d1d77bc85892584186ddf0c14fe1fb83e18550

    SHA512

    c897cbff855df56cf3aab305bbe4f5c1dcc2c0657b8cf25f0d36ae1275110452df8bb3e21b613e2db01a7b533ffcefa39c12f65cc5a283e6a0830fdb95d37715

  • \Users\Admin\AppData\Local\Temp\OutBestAutsMens.sfx.exe
    Filesize

    352KB

    MD5

    38fc93be2d479d4bc35094362633bbdb

    SHA1

    58863aa2983d3fa3f3184f39215be8bcf9d365e6

    SHA256

    f0e889f12c5b97c0b8cba96af2bf4bac7e6ca31711b3002f424ffb3a25b4e334

    SHA512

    3a9449feeec5c80c895a4e8f6f1256b3985d28351dc607f1cac24f5017ab05f68382da4eca4948546a3f72a941520181158fa116478d749d45d28afadc5db8af

  • memory/888-70-0x0000000000000000-mapping.dmp
  • memory/888-73-0x0000000000220000-0x000000000023E000-memory.dmp
    Filesize

    120KB

  • memory/1320-55-0x0000000000000000-mapping.dmp
  • memory/1396-62-0x0000000000000000-mapping.dmp
  • memory/1928-54-0x0000000075361000-0x0000000075363000-memory.dmp
    Filesize

    8KB

  • memory/2000-58-0x0000000000000000-mapping.dmp