Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16-06-2024 20:55

General

  • Target

    Charow.exe

  • Size

    140.1MB

  • MD5

    635241963c80f1b340c65dfd306f554e

  • SHA1

    859bab3fbcc146b573f20d9a42104fa15cd1a1f8

  • SHA256

    50136550410d93d341dc6fadc1e895c8d661f46c11f4dae4aabcd9c553399f3b

  • SHA512

    56ddb69e1d6f0d4309911c1549c45a11f7b6afda4529e266d8ea3620041742f381edb6e5acac031cf1cdd57b1c7b5c2877751bd3e5d19bd357ecfef7b829b70d

  • SSDEEP

    1572864:42Cm7gJKfVjsPawuFHNwczWTeMkF7ZEk8bCkKbj:/aodJFek8+k

Score
10/10

Malware Config

Signatures

  • Epsilon Stealer

    Information stealer.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Checks processor information in registry 2 TTPs 7 IoCs

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

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Charow.exe
    "C:\Users\Admin\AppData\Local\Temp\Charow.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Users\Admin\AppData\Local\Temp\Charow.exe
      "C:\Users\Admin\AppData\Local\Temp\Charow.exe" --type=gpu-process --user-data-dir="C:\Users\Admin\AppData\Roaming\Charow" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1512 --field-trial-handle=1740,i,10544757985020781459,13627459472381646958,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
      2⤵
        PID:4852
      • C:\Users\Admin\AppData\Local\Temp\Charow.exe
        "C:\Users\Admin\AppData\Local\Temp\Charow.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\Admin\AppData\Roaming\Charow" --mojo-platform-channel-handle=1884 --field-trial-handle=1740,i,10544757985020781459,13627459472381646958,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8
        2⤵
          PID:4572
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions""
          2⤵
            PID:504
            • C:\Windows\system32\reg.exe
              C:\Windows\system32\reg.exe QUERY "HKCU\SOFTWARE\Martin Prikryl\WinSCP 2\Sessions"
              3⤵
                PID:4468
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /d /s /c "C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath"
              2⤵
                PID:68
                • C:\Windows\system32\reg.exe
                  C:\Windows\system32\reg.exe QUERY "HKCU\Software\Valve\Steam" /v SteamPath
                  3⤵
                    PID:2704
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /d /s /c "tasklist"
                  2⤵
                    PID:4936
                    • C:\Windows\system32\tasklist.exe
                      tasklist
                      3⤵
                      • Enumerates processes with tasklist
                      • Suspicious use of AdjustPrivilegeToken
                      PID:4940
                  • C:\Users\Admin\AppData\Local\Temp\Charow.exe
                    "C:\Users\Admin\AppData\Local\Temp\Charow.exe" --type=renderer --user-data-dir="C:\Users\Admin\AppData\Roaming\Charow" --app-path="C:\Users\Admin\AppData\Local\Temp\resources\app.asar" --enable-sandbox --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=4 --mojo-platform-channel-handle=2144 --field-trial-handle=1740,i,10544757985020781459,13627459472381646958,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:1
                    2⤵
                    • Checks computer location settings
                    PID:3108
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /d /s /c "wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List"
                    2⤵
                      PID:3832
                      • C:\Windows\System32\Wbem\WMIC.exe
                        wmic /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
                        3⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:3064
                    • C:\Windows\system32\cmd.exe
                      C:\Windows\system32\cmd.exe /d /s /c "wmic path win32_VideoController get name"
                      2⤵
                        PID:4304
                        • C:\Windows\System32\Wbem\WMIC.exe
                          wmic path win32_VideoController get name
                          3⤵
                          • Detects videocard installed
                          • Suspicious use of AdjustPrivilegeToken
                          PID:652
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /d /s /c "cmd /c chcp 65001>nul && netsh wlan show profiles"
                        2⤵
                          PID:3924
                          • C:\Windows\system32\cmd.exe
                            cmd /c chcp 65001
                            3⤵
                              PID:3416
                              • C:\Windows\system32\chcp.com
                                chcp 65001
                                4⤵
                                  PID:3396
                              • C:\Windows\system32\netsh.exe
                                netsh wlan show profiles
                                3⤵
                                  PID:3828
                              • C:\Users\Admin\AppData\Local\Temp\Charow.exe
                                "C:\Users\Admin\AppData\Local\Temp\Charow.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.15063.0 --user-data-dir="C:\Users\Admin\AppData\Roaming\Charow" --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2344 --field-trial-handle=1740,i,10544757985020781459,13627459472381646958,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4472

                            Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

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                            Downloads

                            • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\Antivirus.txt

                              Filesize

                              231B

                              MD5

                              dec2be4f1ec3592cea668aa279e7cc9b

                              SHA1

                              327cf8ab0c895e10674e00ea7f437784bb11d718

                              SHA256

                              753b99d2b4e8c58bfd10995d0c2c19255fe9c8f53703bb27d1b6f76f1f4e83cc

                              SHA512

                              81728e3d31b72905b3a09c79d1e307c4e8e79d436fcfe7560a8046b46ca4ae994fdfaeb1bc2328e35f418b8128f2e7239289e84350e142146df9cde86b20bb66

                            • C:\Users\Admin\AppData\Local\Temp\epsilon-Admin\AutoFill Data\All Autofill Data.txt

                              Filesize

                              249B

                              MD5

                              cf7e4a12f932a3fddddacc8b10e1f1b0

                              SHA1

                              db6f9bc2be5e0905086b7b7b07109ef8d67b24ee

                              SHA256

                              1b6d3f6ad849e115bf20175985bed9bcfc6ec206e288b97ac14c3a23b5d28a4b

                              SHA512

                              fab79f26c1841310cc61e2f8336ca05281a9252a34a3c240e500c8775840374edb0a42094c64aa38a29ca79e1cafa114d6f1bbe3009060d32f8c1df9f088c12c

                            • C:\Users\Admin\AppData\Roaming\Charow\Network\Network Persistent State

                              Filesize

                              296B

                              MD5

                              1b37742232265ba36aa0ab2a53b24845

                              SHA1

                              c3ea77e3435e0ed19a79aec487e9685147360f75

                              SHA256

                              e7b59f2ae1f516c86fdbf4952882a173aac3797ce1065e352d3d3db00c5fd47e

                              SHA512

                              281a8f5c5596a454cac071f46fa984dc350263cb7b874dcc54a3646ad57a7dddde7426baef62a6c2fa0c5b25a38727594c9dbe73295b8beabd0ac45dcb080e7c

                            • C:\Users\Admin\AppData\Roaming\Charow\Network\Network Persistent State~RFe58a090.TMP

                              Filesize

                              59B

                              MD5

                              2800881c775077e1c4b6e06bf4676de4

                              SHA1

                              2873631068c8b3b9495638c865915be822442c8b

                              SHA256

                              226eec4486509917aa336afebd6ff65777b75b65f1fb06891d2a857a9421a974

                              SHA512

                              e342407ab65cc68f1b3fd706cd0a37680a0864ffd30a6539730180ede2cdcd732cc97ae0b9ef7db12da5c0f83e429df0840dbf7596aca859a0301665e517377b

                            • \Users\Admin\AppData\Local\Temp\54a38930-853e-4aac-af18-0c5db3923e24.tmp.node

                              Filesize

                              2.6MB

                              MD5

                              083fd9f2e3e93e1f2c599a2b609c9e5e

                              SHA1

                              6db2b6ce3e60d828ca32a6000c270c09224f3139

                              SHA256

                              5800c926c34c7ef38a45840c30e8855c1b3a6ec1ec8f37ffc6ce2d402728eabd

                              SHA512

                              08206b13d7e91f36d65de545b483d5fa446c2a1d8baab4c2fb19aa711af10cbfd98da3811d34a16033b5c09eb297fdcfaf09a186b4dcf69e84bb4dfcc11d96b2

                            • \Users\Admin\AppData\Local\Temp\7ede9410-67bf-4abd-ac97-910d06b656a9.tmp.node

                              Filesize

                              642KB

                              MD5

                              7e83729e3fb724a15e69e85660dca443

                              SHA1

                              1d35585d2813c6e051840edcb17da5223877597b

                              SHA256

                              8409ee5a2cb80c310128e62221d17a19e9f562ba808a96995e8892295dadeef4

                              SHA512

                              befb0cd52308d54ff5b6fb43e629de02ec05054b6b4e594f904486d8c97f65a39d30415373f635f71de61f4d43b77428a74288f92c79b36f54dce179841cbafb

                            • memory/3108-46-0x00007FFC34610000-0x00007FFC34611000-memory.dmp

                              Filesize

                              4KB

                            • memory/3108-45-0x00007FFC342C0000-0x00007FFC342C1000-memory.dmp

                              Filesize

                              4KB

                            • memory/4852-25-0x00007FFC34B90000-0x00007FFC34B91000-memory.dmp

                              Filesize

                              4KB