Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-07-2023 16:03

General

  • Target

    RePack_Installer.exe

  • Size

    33.7MB

  • MD5

    391148ba6a49c21f1561f0b358c4adc5

  • SHA1

    9eaf6f202172a3bdaa5ef751b9e3ed359eb4557a

  • SHA256

    75cd90a2f1d3620498799556ea9b9217aa5048c27db0a31f6f365cf01d713bd0

  • SHA512

    628b51c10748c0635ff3409e14546257ebee44fc45cfc48f1cb51e73d99fa8bbe7cc9e4250a5cecf6059bfbf859aacdbe12670e83103042a6eb346e21f4c4423

  • SSDEEP

    393216:k5zFjww2tS26qtUkzgwhTlGQx2YR+1WPe6vcYEa75Y7sizuQUZ8q5q5XiMusXNRp:krOiY9TlJckPeK3P7+vDqY9VJnp

Malware Config

Extracted

Family

vidar

Version

4.7

Botnet

https://t.me/hwbhjegyuvbgyugge

C2

https://t.me/hwbhjegyuvbgyugge

https://t.me/jhfvykuwgfwekuifwbe

https://t.me/eagl3z

https://steamcommunity.com/profiles/76561199159550234

Attributes
  • profile_id_v2

    https://t.me/hwbhjegyuvbgyugge

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1788.0 uacq

Extracted

Family

systembc

C2

91.103.252.89:4317

91.103.252.57:4317

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RePack_Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\RePack_Installer.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBzACAAMwA=
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4680
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\ProgramData\97859172639746208806.exe
        "C:\ProgramData\97859172639746208806.exe"
        3⤵
        • Executes dropped EXE
        PID:3844
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBzACAANAA=
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2192

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\97859172639746208806.exe

    Filesize

    5.2MB

    MD5

    207ed0903410689b4eb564b0dab81a07

    SHA1

    cfbbe45ae02a2e9cd4b6bdcd7fc63015f2c23883

    SHA256

    e3084d6849a180a71fd06b624b401a416695bf5db4a1cc7d28410ef7a143a175

    SHA512

    1738f751cd2436affcbbbd099b4b6ed7c833e009a4b960cae6c3a31c98e4be00a13defcd5a68a4fd8288c702f90fba1efe65cc0f2fc0b58aea010cb43b2dcd87

  • C:\ProgramData\97859172639746208806.exe

    Filesize

    5.2MB

    MD5

    207ed0903410689b4eb564b0dab81a07

    SHA1

    cfbbe45ae02a2e9cd4b6bdcd7fc63015f2c23883

    SHA256

    e3084d6849a180a71fd06b624b401a416695bf5db4a1cc7d28410ef7a143a175

    SHA512

    1738f751cd2436affcbbbd099b4b6ed7c833e009a4b960cae6c3a31c98e4be00a13defcd5a68a4fd8288c702f90fba1efe65cc0f2fc0b58aea010cb43b2dcd87

  • C:\ProgramData\97859172639746208806.exe

    Filesize

    5.2MB

    MD5

    207ed0903410689b4eb564b0dab81a07

    SHA1

    cfbbe45ae02a2e9cd4b6bdcd7fc63015f2c23883

    SHA256

    e3084d6849a180a71fd06b624b401a416695bf5db4a1cc7d28410ef7a143a175

    SHA512

    1738f751cd2436affcbbbd099b4b6ed7c833e009a4b960cae6c3a31c98e4be00a13defcd5a68a4fd8288c702f90fba1efe65cc0f2fc0b58aea010cb43b2dcd87

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    2f57fde6b33e89a63cf0dfdd6e60a351

    SHA1

    445bf1b07223a04f8a159581a3d37d630273010f

    SHA256

    3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

    SHA512

    42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    1bad2704664b4c1a190586ec492be65f

    SHA1

    1c98e6645c66774152c184d23f7a3178ce522e7b

    SHA256

    5950586396814b38bfdbb86757839fc8c7ce3eb73577775473c29ce6be81fe3e

    SHA512

    668553c12f1e5560baba826d5c8b139d7c7e323b6aa4e3723aaca479850f898c147d63cb77d305d715044db1e75cf501d6502ca214c7ed05ded424b230893bb0

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mmnna2ro.gk5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1988-173-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/1988-238-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/1988-255-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/1988-175-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/1988-185-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2192-159-0x0000015974830000-0x0000015974840000-memory.dmp

    Filesize

    64KB

  • memory/2192-169-0x0000015974830000-0x0000015974840000-memory.dmp

    Filesize

    64KB

  • memory/2192-172-0x00007FFC7DBD0000-0x00007FFC7E691000-memory.dmp

    Filesize

    10.8MB

  • memory/2192-158-0x00007FFC7DBD0000-0x00007FFC7E691000-memory.dmp

    Filesize

    10.8MB

  • memory/3056-133-0x00007FFC9C430000-0x00007FFC9C432000-memory.dmp

    Filesize

    8KB

  • memory/3056-135-0x00007FF6BD9F0000-0x00007FF6C1107000-memory.dmp

    Filesize

    55.1MB

  • memory/3844-258-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

    Filesize

    4KB

  • memory/3844-259-0x0000000000400000-0x0000000000937000-memory.dmp

    Filesize

    5.2MB

  • memory/3844-260-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

    Filesize

    4KB

  • memory/3844-261-0x0000000004650000-0x0000000004A99000-memory.dmp

    Filesize

    4.3MB

  • memory/3844-262-0x0000000000400000-0x0000000000937000-memory.dmp

    Filesize

    5.2MB

  • memory/4680-152-0x0000019555130000-0x0000019555140000-memory.dmp

    Filesize

    64KB

  • memory/4680-153-0x0000019555130000-0x0000019555140000-memory.dmp

    Filesize

    64KB

  • memory/4680-151-0x00007FFC7DBD0000-0x00007FFC7E691000-memory.dmp

    Filesize

    10.8MB

  • memory/4680-146-0x000001953CDB0000-0x000001953CDD2000-memory.dmp

    Filesize

    136KB

  • memory/4680-156-0x00007FFC7DBD0000-0x00007FFC7E691000-memory.dmp

    Filesize

    10.8MB