Resubmissions

18-06-2023 15:17

230618-sn2wkaha9x 10

18-06-2023 15:15

230618-snd5haga56 1

18-06-2023 15:15

230618-sm1xwaga54 10

Analysis

  • max time kernel
    58s
  • max time network
    426s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2023 15:15

General

  • Target

    https://mega.nz/file/YOdhHAIY#jTm_5DeoMeP7VUQ0n2dVUwp34y2nBaRFF3d25T8MZis

Score
10/10

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1080132753695182890/OM88z5U1CQlUDMQ1n3UcwRfJ2sRQBlvT6lYXqOseT-tGSfD3DocUvIPJtq9zz0WItMTc

Signatures

  • Detect Umbral payload 5 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" https://mega.nz/file/YOdhHAIY#jTm_5DeoMeP7VUQ0n2dVUwp34y2nBaRFF3d25T8MZis
    1⤵
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef66a9758,0x7fef66a9768,0x7fef66a9778
      2⤵
        PID:1644
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1216 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:2
        2⤵
          PID:1528
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1480 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
          2⤵
            PID:548
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1616 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
            2⤵
              PID:1088
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2256 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:1
              2⤵
                PID:1604
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2264 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:1
                2⤵
                  PID:1748
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1236 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:2
                  2⤵
                    PID:2072
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=2592 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                    2⤵
                      PID:1172
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4080 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                      2⤵
                        PID:2348
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4184 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                        2⤵
                          PID:2360
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4236 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                          2⤵
                            PID:2456
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4216 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                            2⤵
                              PID:2540
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4288 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                              2⤵
                                PID:2532
                              • C:\Users\Admin\Downloads\Palm.exe
                                "C:\Users\Admin\Downloads\Palm.exe"
                                2⤵
                                  PID:2680
                                  • C:\Windows\System32\Wbem\wmic.exe
                                    "wmic.exe" csproduct get uuid
                                    3⤵
                                      PID:1132
                                  • C:\Users\Admin\Downloads\Palm.exe
                                    "C:\Users\Admin\Downloads\Palm.exe"
                                    2⤵
                                      PID:2804
                                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1712 --field-trial-handle=1268,i,1180311570967456041,3736542318443635617,131072 /prefetch:8
                                      2⤵
                                        PID:3000
                                    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                                      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                                      1⤵
                                        PID:824
                                      • C:\Windows\system32\AUDIODG.EXE
                                        C:\Windows\system32\AUDIODG.EXE 0x4cc
                                        1⤵
                                          PID:2196

                                        Network

                                        MITRE ATT&CK Enterprise v6

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

                                          Filesize

                                          62KB

                                          MD5

                                          3ac860860707baaf32469fa7cc7c0192

                                          SHA1

                                          c33c2acdaba0e6fa41fd2f00f186804722477639

                                          SHA256

                                          d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

                                          SHA512

                                          d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\6284e367-07c0-46bf-b57d-b156fd9f8822.tmp

                                          Filesize

                                          4KB

                                          MD5

                                          f100d6d5fab2e74fdbedc85716e7d8a3

                                          SHA1

                                          286188f1db42ee47b6ba5a5acc40b2cc9ad6f2f7

                                          SHA256

                                          556be451802ef0336e510a90d6933237efb95ff3e0c615a9eab8bb7373c0bdaf

                                          SHA512

                                          af5f1e774bc1e2253ede405b20aa02a2d0ca3292398bfbe34401672f4019cc13cd20791fec72c195fa1d5881582e660362e7938fed7a13a8cfadc9c2e2dec76b

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\File System\000\t\Paths\MANIFEST-000001

                                          Filesize

                                          41B

                                          MD5

                                          5af87dfd673ba2115e2fcf5cfdb727ab

                                          SHA1

                                          d5b5bbf396dc291274584ef71f444f420b6056f1

                                          SHA256

                                          f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4

                                          SHA512

                                          de34583a7dbafe4dd0dc0601e8f6906b9bc6a00c56c9323561204f77abbc0dc9007c480ffe4092ff2f194d54616caf50aecbd4a1e9583cae0c76ad6dd7c2375b

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\File System\Origins\000001.dbtmp

                                          Filesize

                                          16B

                                          MD5

                                          46295cac801e5d4857d09837238a6394

                                          SHA1

                                          44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                          SHA256

                                          0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                          SHA512

                                          8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1

                                          Filesize

                                          264KB

                                          MD5

                                          f50f89a0a91564d0b8a211f8921aa7de

                                          SHA1

                                          112403a17dd69d5b9018b8cede023cb3b54eab7d

                                          SHA256

                                          b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

                                          SHA512

                                          bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                          Filesize

                                          4KB

                                          MD5

                                          e0c158ac80801fb2b6e14fb27f172726

                                          SHA1

                                          cb06cd85087f16c1dfb9152557efbc23a14eacc8

                                          SHA256

                                          3f5b4ea3c7fd673d18fd2931664ae4f7230b36a4b21ba966e21f2bfd76d780a9

                                          SHA512

                                          c3cfee960fa37fb864c032c2bdf38d61b4718ee86ed975d957943835717a49b6c6eeea14f6bb58989e223355ebaaf7d32bb3b4860aa7e4cac0f572f4d16c8b00

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                          Filesize

                                          4KB

                                          MD5

                                          6e1b69ae57fc781dc8c03d8eef730916

                                          SHA1

                                          6a70d4e98f1d1a6c69397ff5134583ce078a7ca2

                                          SHA256

                                          22b91b545681a19c8a1d28c86888003cc01e77905d4dc74a5a6fdd0c3122bfe4

                                          SHA512

                                          2aae718b281e070cc584b71b78a62ac62955015ba689037815b8ee5d421944483005d919cb92c62ffd7f8436518b270d6103a25a1b96dc309bec5e6e1861a348

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

                                          Filesize

                                          4KB

                                          MD5

                                          0ecfb30e71b70e4d94939c86abecba4a

                                          SHA1

                                          a48807581a9acc2ed58d71c446f34120c15d1ec6

                                          SHA256

                                          56a53a088479952fdba631dcf39c899661f521167573176a01cb7614110714f1

                                          SHA512

                                          24501d844976b84b9923f492ec6d2fbf0f944cae5efa59a9567aa2321022ad87f7383fee1161014118854a45bc2cfe72f4719ccca305440639dc408d509aa4a7

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\Database\000002.dbtmp

                                          Filesize

                                          16B

                                          MD5

                                          206702161f94c5cd39fadd03f4014d98

                                          SHA1

                                          bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                          SHA256

                                          1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                          SHA512

                                          0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

                                        • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\000004.dbtmp

                                          Filesize

                                          16B

                                          MD5

                                          6752a1d65b201c13b62ea44016eb221f

                                          SHA1

                                          58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                                          SHA256

                                          0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                                          SHA512

                                          9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                                        • C:\Users\Admin\AppData\Local\Temp\Tar3599.tmp

                                          Filesize

                                          164KB

                                          MD5

                                          4ff65ad929cd9a367680e0e5b1c08166

                                          SHA1

                                          c0af0d4396bd1f15c45f39d3b849ba444233b3a2

                                          SHA256

                                          c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

                                          SHA512

                                          f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

                                        • C:\Users\Admin\Downloads\Palm.exe

                                          Filesize

                                          235KB

                                          MD5

                                          fd0a1cbec40f6bf0236ca9661180bd53

                                          SHA1

                                          f9be7ae121424460ca59f02c605c2dca82dee236

                                          SHA256

                                          f7d27c81fea257d139e1840f188afc5f6125fac05cd0ee007b025f194f02e9f5

                                          SHA512

                                          f9ac332862465d768e02094981f64841bfff785dba43a7f70569d74879e03f8c96e28440ae2e53c62eef9cee5c6deab2d9f44b5b3743a30831d6a193acbf65c4

                                        • C:\Users\Admin\Downloads\Palm.exe

                                          Filesize

                                          235KB

                                          MD5

                                          fd0a1cbec40f6bf0236ca9661180bd53

                                          SHA1

                                          f9be7ae121424460ca59f02c605c2dca82dee236

                                          SHA256

                                          f7d27c81fea257d139e1840f188afc5f6125fac05cd0ee007b025f194f02e9f5

                                          SHA512

                                          f9ac332862465d768e02094981f64841bfff785dba43a7f70569d74879e03f8c96e28440ae2e53c62eef9cee5c6deab2d9f44b5b3743a30831d6a193acbf65c4

                                        • C:\Users\Admin\Downloads\Palm.exe

                                          Filesize

                                          235KB

                                          MD5

                                          fd0a1cbec40f6bf0236ca9661180bd53

                                          SHA1

                                          f9be7ae121424460ca59f02c605c2dca82dee236

                                          SHA256

                                          f7d27c81fea257d139e1840f188afc5f6125fac05cd0ee007b025f194f02e9f5

                                          SHA512

                                          f9ac332862465d768e02094981f64841bfff785dba43a7f70569d74879e03f8c96e28440ae2e53c62eef9cee5c6deab2d9f44b5b3743a30831d6a193acbf65c4

                                        • C:\Users\Admin\Downloads\Palm.exe

                                          Filesize

                                          235KB

                                          MD5

                                          fd0a1cbec40f6bf0236ca9661180bd53

                                          SHA1

                                          f9be7ae121424460ca59f02c605c2dca82dee236

                                          SHA256

                                          f7d27c81fea257d139e1840f188afc5f6125fac05cd0ee007b025f194f02e9f5

                                          SHA512

                                          f9ac332862465d768e02094981f64841bfff785dba43a7f70569d74879e03f8c96e28440ae2e53c62eef9cee5c6deab2d9f44b5b3743a30831d6a193acbf65c4

                                        • memory/2680-351-0x0000000001100000-0x0000000001140000-memory.dmp

                                          Filesize

                                          256KB

                                        • memory/2680-352-0x000000001AD90000-0x000000001AE10000-memory.dmp

                                          Filesize

                                          512KB

                                        • memory/2680-362-0x000000001AD90000-0x000000001AE10000-memory.dmp

                                          Filesize

                                          512KB