Analysis

  • max time kernel
    132s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    09-03-2022 07:47

General

  • Target

    10c3846867f70dd26c5a54332ed22070c9e5e0e4f52f05fdae12ead801f7933b.exe

  • Size

    223KB

  • MD5

    8879ae061540ce3de496adec3683b0fe

  • SHA1

    4b5f73578a49ca01cc2ba7b414bcf1edfbefa079

  • SHA256

    10c3846867f70dd26c5a54332ed22070c9e5e0e4f52f05fdae12ead801f7933b

  • SHA512

    bf01d7738c47c1f24dab0e70643568f99b73049804a53ac23b492c80e2558aa4166a84d4c247bf3149523096a7379ca4835a24abc6de18cf38d45562e0b98da3

Malware Config

Extracted

Family

jester

Botnet

ads555man

C2

http://jesterdcuxzbey4xvlwwheoecpltru5be2mzuk4w7a7nrhckdjjhrbyd.onion/report/ads555man

https://api.anonfiles.com/upload?token=d26d620842507144

Mutex

efbb42d7-d0db-4f16-a194-3d9d9d1fc654

Attributes
  • license_key

    65EEBAF23D4744267D131CD5BA37E706

Signatures

  • Jester

    Jester is an information stealer malware written in C#.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10c3846867f70dd26c5a54332ed22070c9e5e0e4f52f05fdae12ead801f7933b.exe
    "C:\Users\Admin\AppData\Local\Temp\10c3846867f70dd26c5a54332ed22070c9e5e0e4f52f05fdae12ead801f7933b.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2004
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4644
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:396
        • C:\Windows\system32\netsh.exe
          netsh wlan show profile
          3⤵
            PID:1168
          • C:\Windows\system32\findstr.exe
            findstr All
            3⤵
              PID:4764
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show profile name="65001" key=clear | findstr Key
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4888
            • C:\Windows\system32\chcp.com
              chcp 65001
              3⤵
                PID:1396
              • C:\Windows\system32\netsh.exe
                netsh wlan show profile name="65001" key=clear
                3⤵
                  PID:1228
                • C:\Windows\system32\findstr.exe
                  findstr Key
                  3⤵
                    PID:2332
                • C:\Users\Admin\AppData\Local\Temp\Tor\Tor.exe
                  "C:\Users\Admin\AppData\Local\Temp\Tor\Tor.exe"
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:4664
                • C:\Windows\System32\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\10c3846867f70dd26c5a54332ed22070c9e5e0e4f52f05fdae12ead801f7933b.exe"
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4700
                  • C:\Windows\system32\chcp.com
                    chcp 65001
                    3⤵
                      PID:1932
                    • C:\Windows\system32\PING.EXE
                      ping 127.0.0.1
                      3⤵
                      • Runs ping.exe
                      PID:3020

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\Tor\Tor.exe

                  MD5

                  67ab12cf6cabc14588e4f51b21c2134a

                  SHA1

                  32a4ff564f38bf4b62007e419f19c991e60d6e14

                  SHA256

                  f0aaae0364306bb7a4681d01935c96c2ac76b3576b7982990f86bcaf811a45ba

                  SHA512

                  2a1c67e9d23d6b050e35c5a8e159309cf598095239406c60a9f721fddc912e21afab7036cbd9f77197cc4241df5f8fa6aa9d7294762659178c6edeb4699d5bec

                • C:\Users\Admin\AppData\Local\Temp\Tor\libcrypto-1_1.dll

                  MD5

                  3406f79392c47a72bed2f0067b3ce466

                  SHA1

                  a8e2940d61fc840441c4e2a835959d197929ffdf

                  SHA256

                  e4b6b2ca32b1e2ba26959ec7380c4f117418d3a724f60494ff3cb81505fbf43d

                  SHA512

                  930d794aa8715dcd23fafbead7fe2ec95d2863783b4c52279870cad93d5b6cf02ba8a13e2653d2bf731e9882bf63f43a7e44788ce47505346be3fe8e8b872fa4

                • C:\Users\Admin\AppData\Local\Temp\Tor\libcrypto-1_1.dll

                  MD5

                  3406f79392c47a72bed2f0067b3ce466

                  SHA1

                  a8e2940d61fc840441c4e2a835959d197929ffdf

                  SHA256

                  e4b6b2ca32b1e2ba26959ec7380c4f117418d3a724f60494ff3cb81505fbf43d

                  SHA512

                  930d794aa8715dcd23fafbead7fe2ec95d2863783b4c52279870cad93d5b6cf02ba8a13e2653d2bf731e9882bf63f43a7e44788ce47505346be3fe8e8b872fa4

                • C:\Users\Admin\AppData\Local\Temp\Tor\libcrypto-1_1.dll

                  MD5

                  3406f79392c47a72bed2f0067b3ce466

                  SHA1

                  a8e2940d61fc840441c4e2a835959d197929ffdf

                  SHA256

                  e4b6b2ca32b1e2ba26959ec7380c4f117418d3a724f60494ff3cb81505fbf43d

                  SHA512

                  930d794aa8715dcd23fafbead7fe2ec95d2863783b4c52279870cad93d5b6cf02ba8a13e2653d2bf731e9882bf63f43a7e44788ce47505346be3fe8e8b872fa4

                • C:\Users\Admin\AppData\Local\Temp\Tor\libevent-2-1-7.dll

                  MD5

                  a3bf8e33948d94d490d4613441685eee

                  SHA1

                  75ed7f6e2855a497f45b15270c3ad4aed6ad02e2

                  SHA256

                  91c812a33871e40b264761f1418e37ebfeb750fe61ca00cbcbe9f3769a8bf585

                  SHA512

                  c20ef2efcacb5f8c7e2464de7fde68bf610ab2e0608ff4daed9bf676996375db99bee7e3f26c5bd6cca63f9b2d889ed5460ec25004130887cd1a90b892be2b28

                • C:\Users\Admin\AppData\Local\Temp\Tor\libevent-2-1-7.dll

                  MD5

                  a3bf8e33948d94d490d4613441685eee

                  SHA1

                  75ed7f6e2855a497f45b15270c3ad4aed6ad02e2

                  SHA256

                  91c812a33871e40b264761f1418e37ebfeb750fe61ca00cbcbe9f3769a8bf585

                  SHA512

                  c20ef2efcacb5f8c7e2464de7fde68bf610ab2e0608ff4daed9bf676996375db99bee7e3f26c5bd6cca63f9b2d889ed5460ec25004130887cd1a90b892be2b28

                • C:\Users\Admin\AppData\Local\Temp\Tor\libgcc_s_sjlj-1.dll

                  MD5

                  bd40ff3d0ce8d338a1fe4501cd8e9a09

                  SHA1

                  3aae8c33bf0ec9adf5fbf8a361445969de409b49

                  SHA256

                  ebda776a2a353f8f0690b1c7706b0cdaff3d23e1618515d45e451fc19440501c

                  SHA512

                  404fb3c107006b832b8e900f6e27873324cd0a7946cdccf4ffeea365a725892d929e8b160379af9782bcd6cfeb4c3c805740e21280b42bb2ce8f39f26792e5a1

                • C:\Users\Admin\AppData\Local\Temp\Tor\libgcc_s_sjlj-1.dll

                  MD5

                  bd40ff3d0ce8d338a1fe4501cd8e9a09

                  SHA1

                  3aae8c33bf0ec9adf5fbf8a361445969de409b49

                  SHA256

                  ebda776a2a353f8f0690b1c7706b0cdaff3d23e1618515d45e451fc19440501c

                  SHA512

                  404fb3c107006b832b8e900f6e27873324cd0a7946cdccf4ffeea365a725892d929e8b160379af9782bcd6cfeb4c3c805740e21280b42bb2ce8f39f26792e5a1

                • C:\Users\Admin\AppData\Local\Temp\Tor\libssl-1_1.dll

                  MD5

                  9e3d55fbf890c6cbffd836f2aef4ba31

                  SHA1

                  715890ba3bda3431470cca4f4bc492c0f63fa138

                  SHA256

                  e6f4cf41373e8770c670cf5e85461f25385314ed9d8a2b37381bc84f5c0dd5c0

                  SHA512

                  9848f28fd96c21dd054cbf3e722e56373696c1f7803c137afc7c7203325d9738fa6b984d95cd49ff78a6d95c8f9406f869af3c3783901da3cc003e2b09497d65

                • C:\Users\Admin\AppData\Local\Temp\Tor\libssl-1_1.dll

                  MD5

                  9e3d55fbf890c6cbffd836f2aef4ba31

                  SHA1

                  715890ba3bda3431470cca4f4bc492c0f63fa138

                  SHA256

                  e6f4cf41373e8770c670cf5e85461f25385314ed9d8a2b37381bc84f5c0dd5c0

                  SHA512

                  9848f28fd96c21dd054cbf3e722e56373696c1f7803c137afc7c7203325d9738fa6b984d95cd49ff78a6d95c8f9406f869af3c3783901da3cc003e2b09497d65

                • C:\Users\Admin\AppData\Local\Temp\Tor\libssp-0.dll

                  MD5

                  b77328da7cead5f4623748a70727860d

                  SHA1

                  13b33722c55cca14025b90060e3227db57bf5327

                  SHA256

                  46541d9e28c18bc11267630920b97c42f104c258b55e2f62e4a02bcd5f03e0e7

                  SHA512

                  2f1bd13357078454203092ed5ddc23a8baa5e64202fba1e4f98eacf1c3c184616e527468a96ff36d98b9324426dddfa20b62b38cf95c6f5c0dc32513ebace9e2

                • C:\Users\Admin\AppData\Local\Temp\Tor\libssp-0.dll

                  MD5

                  b77328da7cead5f4623748a70727860d

                  SHA1

                  13b33722c55cca14025b90060e3227db57bf5327

                  SHA256

                  46541d9e28c18bc11267630920b97c42f104c258b55e2f62e4a02bcd5f03e0e7

                  SHA512

                  2f1bd13357078454203092ed5ddc23a8baa5e64202fba1e4f98eacf1c3c184616e527468a96ff36d98b9324426dddfa20b62b38cf95c6f5c0dc32513ebace9e2

                • C:\Users\Admin\AppData\Local\Temp\Tor\libwinpthread-1.dll

                  MD5

                  19d7cc4377f3c09d97c6da06fbabc7dc

                  SHA1

                  3a3ba8f397fb95ed5df22896b2c53a326662fcc9

                  SHA256

                  228fcfe9ed0574b8da32dd26eaf2f5dbaef0e1bd2535cb9b1635212ccdcbf84d

                  SHA512

                  23711285352cdec6815b5dd6e295ec50568fab7614706bc8d5328a4a0b62991c54b16126ed9e522471d2367b6f32fa35feb41bfa77b3402680d9a69f53962a4a

                • C:\Users\Admin\AppData\Local\Temp\Tor\libwinpthread-1.dll

                  MD5

                  19d7cc4377f3c09d97c6da06fbabc7dc

                  SHA1

                  3a3ba8f397fb95ed5df22896b2c53a326662fcc9

                  SHA256

                  228fcfe9ed0574b8da32dd26eaf2f5dbaef0e1bd2535cb9b1635212ccdcbf84d

                  SHA512

                  23711285352cdec6815b5dd6e295ec50568fab7614706bc8d5328a4a0b62991c54b16126ed9e522471d2367b6f32fa35feb41bfa77b3402680d9a69f53962a4a

                • C:\Users\Admin\AppData\Local\Temp\Tor\tor.exe

                  MD5

                  67ab12cf6cabc14588e4f51b21c2134a

                  SHA1

                  32a4ff564f38bf4b62007e419f19c991e60d6e14

                  SHA256

                  f0aaae0364306bb7a4681d01935c96c2ac76b3576b7982990f86bcaf811a45ba

                  SHA512

                  2a1c67e9d23d6b050e35c5a8e159309cf598095239406c60a9f721fddc912e21afab7036cbd9f77197cc4241df5f8fa6aa9d7294762659178c6edeb4699d5bec

                • C:\Users\Admin\AppData\Local\Temp\Tor\zlib1.dll

                  MD5

                  6f98da9e33cd6f3dd60950413d3638ac

                  SHA1

                  e630bdf8cebc165aa81464ff20c1d55272d05675

                  SHA256

                  219d9d5bf0de4c2251439c89dd5f2959ee582e7f9f7d5ff66a29c88753a3a773

                  SHA512

                  2983faaf7f47a8f79a38122aa617e65e7deddd19ba9a98b62acf17b48e5308099b852f21aaf8ca6fe11e2cc76c36eed7ffa3307877d4e67b1659fe6e4475205c

                • C:\Users\Admin\AppData\Local\Temp\Tor\zlib1.dll

                  MD5

                  6f98da9e33cd6f3dd60950413d3638ac

                  SHA1

                  e630bdf8cebc165aa81464ff20c1d55272d05675

                  SHA256

                  219d9d5bf0de4c2251439c89dd5f2959ee582e7f9f7d5ff66a29c88753a3a773

                  SHA512

                  2983faaf7f47a8f79a38122aa617e65e7deddd19ba9a98b62acf17b48e5308099b852f21aaf8ca6fe11e2cc76c36eed7ffa3307877d4e67b1659fe6e4475205c

                • memory/2004-130-0x0000022AA7530000-0x0000022AA756E000-memory.dmp

                  Filesize

                  248KB

                • memory/2004-133-0x0000022AC3930000-0x0000022AC3980000-memory.dmp

                  Filesize

                  320KB

                • memory/2004-132-0x0000022AA78A0000-0x0000022AA78A2000-memory.dmp

                  Filesize

                  8KB

                • memory/2004-131-0x00007FF8F9B20000-0x00007FF8FA5E1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/4664-151-0x0000000075870000-0x000000007596B000-memory.dmp

                  Filesize

                  1004KB

                • memory/4664-152-0x00000000756A0000-0x00000000756C6000-memory.dmp

                  Filesize

                  152KB

                • memory/4664-153-0x0000000000240000-0x0000000000653000-memory.dmp

                  Filesize

                  4.1MB

                • memory/4664-154-0x0000000075870000-0x000000007596B000-memory.dmp

                  Filesize

                  1004KB

                • memory/4664-155-0x00000000752B0000-0x00000000755A5000-memory.dmp

                  Filesize

                  3.0MB

                • memory/4664-156-0x00000000755B0000-0x0000000075696000-memory.dmp

                  Filesize

                  920KB

                • memory/4664-157-0x00000000756A0000-0x00000000756C6000-memory.dmp

                  Filesize

                  152KB

                • memory/4664-158-0x0000000000240000-0x0000000000653000-memory.dmp

                  Filesize

                  4.1MB