Analysis

  • max time kernel
    139s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 16:34

General

  • Target

    https://github.com/user-attachments/files/16802336/Solara.zip

Malware Config

Extracted

Family

rhadamanthys

C2

https://144.76.133.166:8034/5502b8a765a7d7349/k5851jfq.guti6

Signatures

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 6 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:3000
      • C:\Windows\SysWOW64\openwith.exe
        "C:\Windows\system32\openwith.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2960
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" https://github.com/user-attachments/files/16802336/Solara.zip
      1⤵
      • Modifies Internet Explorer Phishing Filter
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6040
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:6040 CREDAT:17410 /prefetch:2
        2⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2644
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:1620
      • C:\Users\Admin\Downloads\Solara\Solara.exe
        "C:\Users\Admin\Downloads\Solara\Solara.exe"
        1⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3064
        • C:\Users\Admin\Downloads\Solara\Solara.exe
          "C:\Users\Admin\Downloads\Solara\Solara.exe"
          2⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:812
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 812 -s 464
            3⤵
            • Program crash
            PID:5836
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 812 -s 460
            3⤵
            • Program crash
            PID:3612
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 812 -ip 812
        1⤵
          PID:5616
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 812 -ip 812
          1⤵
            PID:4540
          • C:\Users\Admin\Downloads\Solara\Solara.exe
            "C:\Users\Admin\Downloads\Solara\Solara.exe"
            1⤵
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3844
            • C:\Users\Admin\Downloads\Solara\Solara.exe
              "C:\Users\Admin\Downloads\Solara\Solara.exe"
              2⤵
              • System Location Discovery: System Language Discovery
              PID:3392
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3392 -s 420
                3⤵
                • Program crash
                PID:3444
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3392 -s 428
                3⤵
                • Program crash
                PID:4968
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3392 -ip 3392
            1⤵
              PID:3972
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3392 -ip 3392
              1⤵
                PID:432
              • C:\Users\Admin\Downloads\Solara\Solara.exe
                "C:\Users\Admin\Downloads\Solara\Solara.exe"
                1⤵
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:5304
                • C:\Users\Admin\Downloads\Solara\Solara.exe
                  "C:\Users\Admin\Downloads\Solara\Solara.exe"
                  2⤵
                  • System Location Discovery: System Language Discovery
                  PID:3588
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 412
                    3⤵
                    • Program crash
                    PID:1700
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 436
                    3⤵
                    • Program crash
                    PID:2224
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3588 -ip 3588
                1⤵
                  PID:5700
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3588 -ip 3588
                  1⤵
                    PID:3208

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Solara.exe.log

                    Filesize

                    617B

                    MD5

                    99e770c0d4043aa84ef3d3cbc7723c25

                    SHA1

                    19829c5c413fccba750a3357f938dfa94486acad

                    SHA256

                    33c7dd4c852dae6462c701337f8e0a8647602847ccaee656fa6f1149cccfb5d5

                    SHA512

                    ba521e2f57d7e1db19445201948caa7af6d953e1c1340228934888f8ec05b8984ad492122d0bf0550b5e679614d8a713ecf68f91916ffa6e5d8f75bf003aae39

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4329235D\Solara.zip.ues3w1q.partial

                    Filesize

                    14.9MB

                    MD5

                    456adec7a01fff85c1204428b5123a66

                    SHA1

                    26165fe003a01a3a59dc64070fbf2e96187214d7

                    SHA256

                    b6127458de06667662655e158e7d1adc6cf505d08d9dffe243a0b308b3166090

                    SHA512

                    3b2cbfaf171297da578c0db840e54a156a1aec481a0f441acaddfe127d20f1013d62a74c99fdbb8a44bc9ced109aa25509dad05131cc5cfe99ade170027fcc41

                  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\THHXO5RX\suggestions[1].en-US

                    Filesize

                    17KB

                    MD5

                    5a34cb996293fde2cb7a4ac89587393a

                    SHA1

                    3c96c993500690d1a77873cd62bc639b3a10653f

                    SHA256

                    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

                    SHA512

                    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

                  • memory/812-58-0x00000000044D0000-0x00000000048D0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/812-57-0x00007FF8B7570000-0x00007FF8B7765000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/812-70-0x00000000044D0000-0x00000000048D0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/812-60-0x0000000075B30000-0x0000000075D45000-memory.dmp

                    Filesize

                    2.1MB

                  • memory/812-55-0x00000000044D0000-0x00000000048D0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/812-49-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/812-53-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/812-52-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/812-51-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/812-54-0x00000000044D0000-0x00000000048D0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/812-56-0x00000000044D0000-0x00000000048D0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/2960-63-0x0000000002CF0000-0x00000000030F0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/2960-64-0x00007FF8B7570000-0x00007FF8B7765000-memory.dmp

                    Filesize

                    2.0MB

                  • memory/2960-61-0x0000000000DB0000-0x0000000000DB9000-memory.dmp

                    Filesize

                    36KB

                  • memory/2960-67-0x0000000002CF0000-0x00000000030F0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/2960-65-0x0000000002CF0000-0x00000000030F0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/2960-68-0x0000000075B30000-0x0000000075D45000-memory.dmp

                    Filesize

                    2.1MB

                  • memory/2960-69-0x0000000002CF0000-0x00000000030F0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/3064-43-0x00000000746DE000-0x00000000746DF000-memory.dmp

                    Filesize

                    4KB

                  • memory/3064-46-0x0000000005C30000-0x0000000005E12000-memory.dmp

                    Filesize

                    1.9MB

                  • memory/3064-44-0x0000000000C10000-0x000000000123A000-memory.dmp

                    Filesize

                    6.2MB

                  • memory/3064-45-0x0000000005B90000-0x0000000005C2C000-memory.dmp

                    Filesize

                    624KB

                  • memory/3064-48-0x0000000005A30000-0x0000000005A52000-memory.dmp

                    Filesize

                    136KB

                  • memory/3064-47-0x00000000063C0000-0x0000000006964000-memory.dmp

                    Filesize

                    5.6MB

                  • memory/3392-74-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/3392-76-0x0000000003EC0000-0x00000000042C0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/3588-81-0x00000000041C0000-0x00000000045C0000-memory.dmp

                    Filesize

                    4.0MB

                  • memory/3588-79-0x0000000000400000-0x000000000047E000-memory.dmp

                    Filesize

                    504KB

                  • memory/3844-72-0x0000000005E20000-0x0000000005E42000-memory.dmp

                    Filesize

                    136KB

                  • memory/5304-77-0x0000000005930000-0x0000000005952000-memory.dmp

                    Filesize

                    136KB