Resubmissions

17/10/2022, 14:06

221017-rel83scbgl10

15/10/2022, 15:56

221015-tddlnafge810

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2022, 14:06

General

  • Target
    2799e835de7c35f0578c7ec497a20cf1.exe
  • Size 214KB
  • Sample221017-rel83scbgl
  • SHA256 7f1162b133373aeaa422b0356992ffecbc1c9c4fa07afdc389fb8d62e040e152
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • erbium

C2
  • http://77.73.133.53/cloud/index.php

Signatures

  • Detects Smokeloader packer 1 IoCs
  • Erbium

    Erbium is an infostealer written in C++ and first seen in July 2022.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 10 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2799e835de7c35f0578c7ec497a20cf1.exe
    "C:\Users\Admin\AppData\Local\Temp\2799e835de7c35f0578c7ec497a20cf1.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3016
  • C:\Users\Admin\AppData\Local\Temp\3B53.exe
    C:\Users\Admin\AppData\Local\Temp\3B53.exe
    1⤵
    • Executes dropped EXE
    PID:948
  • C:\Users\Admin\AppData\Local\Temp\3E23.exe
    C:\Users\Admin\AppData\Local\Temp\3E23.exe
    1⤵
    • Executes dropped EXE
    PID:2592
  • C:\Users\Admin\AppData\Local\Temp\4940.exe
    C:\Users\Admin\AppData\Local\Temp\4940.exe
    1⤵
    • Executes dropped EXE
    PID:2488
  • C:\Users\Admin\AppData\Local\Temp\52E6.exe
    C:\Users\Admin\AppData\Local\Temp\52E6.exe
    1⤵
    • Executes dropped EXE
    PID:2300
  • C:\Users\Admin\AppData\Local\Temp\5E41.exe
    C:\Users\Admin\AppData\Local\Temp\5E41.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\main\main.bat" /S"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Windows\system32\mode.com
        mode 65,10
        3⤵
          PID:532
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e file.zip -p3245510188437331521472513953 -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4212
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_3.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:904
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_2.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:5096
        • C:\Users\Admin\AppData\Local\Temp\main\7z.exe
          7z.exe e extracted/file_1.zip -oextracted
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:4732
        • C:\Windows\system32\attrib.exe
          attrib +H "isaas.exe"
          3⤵
          • Views/modifies file attributes
          PID:4996
        • C:\Users\Admin\AppData\Local\Temp\main\isaas.exe
          "isaas.exe"
          3⤵
          • Executes dropped EXE
          PID:4696
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:2324
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:3316
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:4256
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:384
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:4532
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:2008
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:2004
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:2684
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:3720

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            3B53.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\3B53.exe
                            • Size 415KB
                            • SHA256 1c5bffcb4f1b72017173d7342e52737e81bad54e9aca9ab344542737943d46f9
                            • MD5 SHA1 SHA512 SSDEEP

                            3B53.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\3B53.exe
                            • Size 415KB
                            • SHA256 1c5bffcb4f1b72017173d7342e52737e81bad54e9aca9ab344542737943d46f9
                            • MD5 SHA1 SHA512 SSDEEP

                            3E23.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\3E23.exe
                            • Size 352KB
                            • SHA256 cc47d3db024920205db9a6ed2742d6f6522a5838ddfac9b6347a938907e86b15
                            • MD5 SHA1 SHA512 SSDEEP

                            3E23.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\3E23.exe
                            • Size 352KB
                            • SHA256 cc47d3db024920205db9a6ed2742d6f6522a5838ddfac9b6347a938907e86b15
                            • MD5 SHA1 SHA512 SSDEEP

                            4940.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\4940.exe
                            • Size 352KB
                            • SHA256 1925f577470837e7b7706ea41838fe3917a214ab05bb6e49ab94ac70f5600636
                            • MD5 SHA1 SHA512 SSDEEP

                            4940.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\4940.exe
                            • Size 352KB
                            • SHA256 1925f577470837e7b7706ea41838fe3917a214ab05bb6e49ab94ac70f5600636
                            • MD5 SHA1 SHA512 SSDEEP

                            52E6.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\52E6.exe
                            • Size 352KB
                            • SHA256 87a81819b988a608cedd75e459aeb82cde6448a81d6ad7666fd14d22f60520ab
                            • MD5 SHA1 SHA512 SSDEEP

                            52E6.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\52E6.exe
                            • Size 352KB
                            • SHA256 87a81819b988a608cedd75e459aeb82cde6448a81d6ad7666fd14d22f60520ab
                            • MD5 SHA1 SHA512 SSDEEP

                            5E41.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\5E41.exe
                            • Size 2.5MB
                            • SHA256 00abe64f9c24a1db29e1d470ab638d0cdd802984947fe0708e3f3e217e447afb
                            • MD5 SHA1 SHA512 SSDEEP

                            5E41.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\5E41.exe
                            • Size 2.5MB
                            • SHA256 00abe64f9c24a1db29e1d470ab638d0cdd802984947fe0708e3f3e217e447afb
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.dll
                            • Size 1.6MB
                            • SHA256 34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.dll
                            • Size 1.6MB
                            • SHA256 34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.dll
                            • Size 1.6MB
                            • SHA256 34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.dll
                            • Size 1.6MB
                            • SHA256 34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.dll
                            • Size 1.6MB
                            • SHA256 34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.exe
                            • Size 458KB
                            • SHA256 344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.exe
                            • Size 458KB
                            • SHA256 344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.exe
                            • Size 458KB
                            • SHA256 344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2
                            • MD5 SHA1 SHA512 SSDEEP

                            7z.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\7z.exe
                            • Size 458KB
                            • SHA256 344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2
                            • MD5 SHA1 SHA512 SSDEEP

                            ANTIAV~1.DAT

                            • Path C:\Users\Admin\AppData\Local\Temp\main\extracted\ANTIAV~1.DAT
                            • Size 2.1MB
                            • SHA256 993fbff9e2154d7fefa2ce1e6e8353664f478d52d6220ae62fce480abfc2c9c0
                            • MD5 SHA1 SHA512 SSDEEP

                            file_1.zip

                            • Path C:\Users\Admin\AppData\Local\Temp\main\extracted\file_1.zip
                            • Size 3KB
                            • SHA256 3fe32eaebb03b409fc0edaf8b9e269dae420ac107594232011ae1464b75239eb
                            • MD5 SHA1 SHA512

                            file_2.zip

                            • Path C:\Users\Admin\AppData\Local\Temp\main\extracted\file_2.zip
                            • Size 3KB
                            • SHA256 009da3b14ef5f081fd65da62fd015b5944c6a7edaf21b245f04cf9338f9d25c3
                            • MD5 SHA1 SHA512

                            file_3.zip

                            • Path C:\Users\Admin\AppData\Local\Temp\main\extracted\file_3.zip
                            • Size 1.5MB
                            • SHA256 47abab88c18b1e6eba7c2c030deeb86c4263d836a2cec2faf670cfa2b9836274
                            • MD5 SHA1 SHA512 SSDEEP

                            isaas.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\extracted\isaas.exe
                            • Size 10KB
                            • SHA256 20837c24531ede4a540d16688badcce8e2099a12c3f83afd6db6e4b838732185
                            • MD5 SHA1 SHA512 SSDEEP

                            file.bin

                            • Path C:\Users\Admin\AppData\Local\Temp\main\file.bin
                            • Size 1.5MB
                            • SHA256 39fb83950cb95fc0fe73fbe1dccd83335d41e3931cb1b3470e9fa472bf291dcd
                            • MD5 SHA1 SHA512 SSDEEP

                            isaas.exe

                            • Path C:\Users\Admin\AppData\Local\Temp\main\isaas.exe
                            • Size 10KB
                            • SHA256 20837c24531ede4a540d16688badcce8e2099a12c3f83afd6db6e4b838732185
                            • MD5 SHA1 SHA512 SSDEEP

                            main.bat

                            • Path C:\Users\Admin\AppData\Local\Temp\main\main.bat
                            • Size 454B
                            • SHA256 a2a036641d182b94f67a872adff2d02244722623425215eff050bab90bd5b7d5
                            • MD5 SHA1 SHA512

                            memory/384-212-0x0000000000F30000-0x0000000000F36000-memory.dmp

                            memory/384-213-0x0000000000F20000-0x0000000000F2C000-memory.dmp

                            memory/384-233-0x0000000000F30000-0x0000000000F36000-memory.dmp

                            memory/980-169-0x0000000000B40000-0x0000000000B50000-memory.dmp

                            memory/980-254-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-168-0x00000000031E0000-0x00000000031F0000-memory.dmp

                            memory/980-286-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-285-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-170-0x0000000000B40000-0x0000000000B50000-memory.dmp

                            memory/980-284-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-283-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-156-0x0000000000B40000-0x0000000000B50000-memory.dmp

                            memory/980-281-0x0000000002E10000-0x0000000002E20000-memory.dmp

                            memory/980-278-0x0000000002DF0000-0x0000000002E00000-memory.dmp

                            memory/980-279-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-280-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-276-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-155-0x0000000000B40000-0x0000000000B50000-memory.dmp

                            memory/980-154-0x00000000031E0000-0x00000000031F0000-memory.dmp

                            memory/980-153-0x0000000003030000-0x0000000003040000-memory.dmp

                            memory/980-277-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-152-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-275-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-274-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-273-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-151-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-150-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-272-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-149-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-148-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-147-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-146-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-271-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-145-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-144-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-143-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-142-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-270-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-269-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-140-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-141-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-268-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-139-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-138-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-137-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-136-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-267-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-266-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-265-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-264-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-263-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-262-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-261-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-260-0x0000000002DF0000-0x0000000002E00000-memory.dmp

                            memory/980-259-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-258-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-257-0x0000000002E00000-0x0000000002E10000-memory.dmp

                            memory/980-256-0x0000000002DF0000-0x0000000002E00000-memory.dmp

                            memory/980-255-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-253-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-252-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-251-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-250-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-249-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-248-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-247-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-246-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-245-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-244-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-243-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-242-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-241-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-240-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/980-239-0x0000000003050000-0x0000000003060000-memory.dmp

                            memory/2004-222-0x0000000000450000-0x000000000045B000-memory.dmp

                            memory/2004-236-0x0000000000460000-0x0000000000466000-memory.dmp

                            memory/2004-221-0x0000000000460000-0x0000000000466000-memory.dmp

                            memory/2008-235-0x00000000006C0000-0x00000000006C5000-memory.dmp

                            memory/2008-218-0x00000000006C0000-0x00000000006C5000-memory.dmp

                            memory/2008-219-0x00000000006B0000-0x00000000006B9000-memory.dmp

                            memory/2324-176-0x0000000000340000-0x0000000000347000-memory.dmp

                            memory/2324-177-0x0000000000330000-0x000000000033B000-memory.dmp

                            memory/2324-229-0x0000000000340000-0x0000000000347000-memory.dmp

                            memory/2684-224-0x0000000001010000-0x0000000001017000-memory.dmp

                            memory/2684-225-0x0000000001000000-0x000000000100D000-memory.dmp

                            memory/2684-237-0x0000000001010000-0x0000000001017000-memory.dmp

                            memory/3016-135-0x0000000000400000-0x000000000043A000-memory.dmp

                            memory/3016-133-0x0000000000590000-0x0000000000599000-memory.dmp

                            memory/3016-132-0x000000000060E000-0x000000000061E000-memory.dmp

                            memory/3016-134-0x0000000000400000-0x000000000043A000-memory.dmp

                            memory/3316-230-0x0000000000BF0000-0x0000000000BF9000-memory.dmp

                            memory/3316-186-0x0000000000BF0000-0x0000000000BF9000-memory.dmp

                            memory/3316-187-0x0000000000BE0000-0x0000000000BEF000-memory.dmp

                            memory/3720-238-0x0000000000670000-0x0000000000678000-memory.dmp

                            memory/3720-228-0x0000000000660000-0x000000000066B000-memory.dmp

                            memory/3720-227-0x0000000000670000-0x0000000000678000-memory.dmp

                            memory/4256-231-0x00000000010F0000-0x00000000010F5000-memory.dmp

                            memory/4256-209-0x00000000010F0000-0x00000000010F5000-memory.dmp

                            memory/4256-188-0x00000000010E0000-0x00000000010E9000-memory.dmp

                            memory/4532-216-0x0000000000EB0000-0x0000000000ED2000-memory.dmp

                            memory/4532-217-0x0000000000E80000-0x0000000000EA7000-memory.dmp

                            memory/4532-234-0x0000000000EB0000-0x0000000000ED2000-memory.dmp

                            memory/4696-214-0x0000000005B50000-0x0000000005E13000-memory.dmp

                            memory/4696-210-0x0000000005B50000-0x0000000005E13000-memory.dmp

                            memory/4696-232-0x0000000005B50000-0x0000000005E13000-memory.dmp