Analysis

  • max time kernel
    24s
  • max time network
    26s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-06-2024 00:26

General

  • Target

    http://filetrance.tander.ru/4df51f88b2191cff2e70e606443b903c

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1255928116254347374/u0ls8xAob_OonkG4QfZR2Rkb7HTFJJnFeRnAbtEqsrIQCTthQ47AiadBOYeurhlrLKMw

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://filetrance.tander.ru/4df51f88b2191cff2e70e606443b903c
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffb61623cb8,0x7ffb61623cc8,0x7ffb61623cd8
      2⤵
        PID:1992
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1908 /prefetch:2
        2⤵
          PID:4816
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2252 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4972
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2560 /prefetch:8
          2⤵
            PID:3772
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3228 /prefetch:1
            2⤵
              PID:3032
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3236 /prefetch:1
              2⤵
                PID:3712
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5328 /prefetch:1
                2⤵
                  PID:2576
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5508 /prefetch:8
                  2⤵
                  • NTFS ADS
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2372
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5544 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1952
                • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1884,15199470245066819230,14275604757628739877,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5968 /prefetch:8
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2384
              • C:\Windows\System32\CompPkgSrv.exe
                C:\Windows\System32\CompPkgSrv.exe -Embedding
                1⤵
                  PID:4916
                • C:\Windows\System32\CompPkgSrv.exe
                  C:\Windows\System32\CompPkgSrv.exe -Embedding
                  1⤵
                    PID:4012
                  • C:\Windows\System32\rundll32.exe
                    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                    1⤵
                      PID:944
                    • C:\Program Files\7-Zip\7zFM.exe
                      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\Downloads\new_cheat_cs2.rar"
                      1⤵
                      • Suspicious behavior: GetForegroundWindowSpam
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of FindShellTrayWindow
                      PID:3556
                    • C:\Users\Admin\Desktop\cheat.exe
                      "C:\Users\Admin\Desktop\cheat.exe"
                      1⤵
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3184

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                      Filesize

                      152B

                      MD5

                      3066a8b5ee69aa68f709bdfbb468b242

                      SHA1

                      a591d71a96bf512bd2cfe17233f368e48790a401

                      SHA256

                      76f6f3fcef4b1d989542e7c742ff73810c24158ac4e086cbd54f13b430cc4434

                      SHA512

                      ad4d30c7be9466a797943230cb9f2ca98f76bf0f907728a0fa5526de1ed23cd5cf81b130ee402f7b3bb5de1e303b049d2867d98cf2039b5d8cb177d7a410b257

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                      Filesize

                      152B

                      MD5

                      5c4605aed5013f25a162a5054965829c

                      SHA1

                      4cec67cbc5ec1139df172dbc7a51fe38943360cf

                      SHA256

                      5c16c584cda1f348a7030e9cab6e9db9e8e47a283dd19879f8bb6d75e170827f

                      SHA512

                      bf2a5602fde0de143f9df334249fef2e36af7abeda389376a20d7613e9ccad59f2ca0447576ac1ed60ecf6ab1526c37e68c4614d79ae15c53e1774d325b4036f

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Code Cache\js\index-dir\the-real-index

                      Filesize

                      120B

                      MD5

                      8a940eeebabd73edd31a7f396f1c5a06

                      SHA1

                      685b2396730e347343ee885512707c9d863fe20c

                      SHA256

                      1c0e5658f4fab53b9b655f49989250a895a2efac2756b12a25ec842ef797034e

                      SHA512

                      0ca18274d658cce58c87137f134305e6e527401d2d0fb6eb74e7a466badabe9739111dfb41a29bc73c79ad4c196be269749a70c73c6ed4d6d6e6b802520d8c0c

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                      Filesize

                      5KB

                      MD5

                      94ad6c260fe7c6cf7537ebe5b7c7585b

                      SHA1

                      6aa3a490b25ad6f654b6907f3bf700c2a487dd61

                      SHA256

                      71e3f8cc6f6d5862a86360bb2aa629dbc9f693174039e5c124d79c979ded0523

                      SHA512

                      a0295064cc9c450dbb9d73e3f71a8fef4a935afc020d1c0af066d0d26887c52e9773445d13cac78e4b585812e1745645134601056b11e60168027e24d3a574f5

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                      Filesize

                      6KB

                      MD5

                      da77957872b7d675df8bf74fb87ad8c1

                      SHA1

                      96f1e124c543f20f65c37f2331079d343fff2e21

                      SHA256

                      6865c93bc2c950ab3a050404112dd169975606744078dc03a0078537eb3e824c

                      SHA512

                      f5f004d76826be0ecabffbb01dea8e58f72442d32d2aef68f7f390ed29dfb5389d7e04b8d8a24323a0d5749123596bacafb4a4f41a5673f5ca7a911a5cce310d

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                      Filesize

                      16B

                      MD5

                      46295cac801e5d4857d09837238a6394

                      SHA1

                      44e0fa1b517dbf802b18faf0785eeea6ac51594b

                      SHA256

                      0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                      SHA512

                      8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                      Filesize

                      16B

                      MD5

                      206702161f94c5cd39fadd03f4014d98

                      SHA1

                      bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                      SHA256

                      1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                      SHA512

                      0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                    • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                      Filesize

                      11KB

                      MD5

                      94d48f57f1618d9bde6f36bd5e9a11a0

                      SHA1

                      cb00f1ecd32820d7ac7af4d6a554cacbbb974ed9

                      SHA256

                      9aa64867b54e392c4e0ddee790f0625352b3e5a77ea2c8afb441d1f7af8b8e50

                      SHA512

                      32174e3228b0d374859e5c3000db7da4c3eec9deb8825ef39586f8178c0ef5297ec030ab917b10d7e9c829a486e69306760aab610ef7d74b393542c0391456d0

                    • C:\Users\Admin\Desktop\cheat.exe

                      Filesize

                      303KB

                      MD5

                      43bff03bf5b096bb7673a6116deeaaf9

                      SHA1

                      87b72cc4ef3223e2c4733c9dd3491c15c52fe3a2

                      SHA256

                      ec8dce97f07f09963def07b08ed495fce710bd4cca94d9ff356a7de155ea4bf4

                      SHA512

                      a5c18459b9fe5251b2dae07ec2754fed9752d1e09a819642a03c34cf3535cc9c993e452e2df69b1f68925b3a1234c862724cf1c9f0858f3daeb948303f3e2e7a

                    • C:\Users\Admin\Downloads\new_cheat_cs2.rar

                      Filesize

                      112KB

                      MD5

                      4aa1105c12e4a80b86f3b9c0b457b70f

                      SHA1

                      5b8e9b4a52d4b2fe8b2fce12e34c2e89ba9e9b26

                      SHA256

                      2adbc1f5cc46165713736427f87168a10a21fa3d870835989ae0edf10867f755

                      SHA512

                      429f7c327044fc652747a3a510e5f19c6f0ff71c0dd8d841ad9721186f6df8b4a76b5de1bc70cb56495dfd7bfb960132c45649ed9e90ce9adaaa0b48fa78d74b

                    • C:\Users\Admin\Downloads\new_cheat_cs2.rar:Zone.Identifier

                      Filesize

                      157B

                      MD5

                      992406e15fb3656ebdaba83605042624

                      SHA1

                      df03e4822f368dcb6a736641056875dbbd15b5fe

                      SHA256

                      8f151de60b4e0698c684c7868119f00185421fe198bb17c6e2e401af7a648449

                      SHA512

                      58598143018e0bc7ef94bc9b35ce4552377a07c749256792036ae9dae6e156406d201b37cc199f5dd23ac6fb1a372ec477ccec0eb5658bbef814e1d823a8819a

                    • \??\pipe\LOCAL\crashpad_2396_KOVWOBHOSTOAIEEP

                      MD5

                      d41d8cd98f00b204e9800998ecf8427e

                      SHA1

                      da39a3ee5e6b4b0d3255bfef95601890afd80709

                      SHA256

                      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                      SHA512

                      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                    • memory/3184-171-0x000001CD579E0000-0x000001CD57A32000-memory.dmp

                      Filesize

                      328KB