Analysis

  • max time kernel
    64s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2022 11:51

General

  • Target

    file.exe

  • Size

    386KB

  • MD5

    2cacbcd2cc6cbaac2ab0270f5e341d50

  • SHA1

    da3aea62ddf57c895acf630b62e972ef70defb60

  • SHA256

    a3694a1695f21ff234a62d22c6d98dd4f5a7fd3e0edb25b0830d40612196e922

  • SHA512

    6eef2ee4b169b14dbe5ee794556e82382e305dae1890b7b8e0acaaf44e17446def261fee1f86deeabccc77fc58577c4ab08bdba567f6ca651ec2c6348b811489

  • SSDEEP

    12288:edXL4sFzfWs/Dtr6oYcxh2MdRog6EQpbief:E4IW0pr6cX2sojJief

Malware Config

Extracted

Family

privateloader

C2

http://108.174.200.11/MWTSL

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Loads dropped DLL ⋅ 10 IoCs
  • Reads user/profile data of local email clients ⋅ 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers ⋅ 2 TTPs

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

  • Checks installed software on the system ⋅ 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service ⋅ 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger ⋅ 1 IoCs
  • Checks processor information in registry ⋅ 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses ⋅ 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    Loads dropped DLL
    Suspicious use of NtSetInformationThreadHideFromDebugger
    Checks processor information in registry
    Suspicious behavior: EnumeratesProcesses
    PID:1752

Network

MITRE ATT&CK Matrix

Command and Control

    Credential Access

    Defense Evasion

      Execution

        Exfiltration

          Impact

            Initial Access

              Lateral Movement

                Persistence

                  Privilege Escalation

                    Replay Monitor

                    00:00 00:00

                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\freebl3.dll
                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\mozglue.dll
                      MD5

                      8f73c08a9660691143661bf7332c3c27

                      SHA1

                      37fa65dd737c50fda710fdbde89e51374d0c204a

                      SHA256

                      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

                      SHA512

                      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\nss3.dll
                      MD5

                      bfac4e3c5908856ba17d41edcd455a51

                      SHA1

                      8eec7e888767aa9e4cca8ff246eb2aacb9170428

                      SHA256

                      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

                      SHA512

                      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\softokn3.dll
                      MD5

                      a2ee53de9167bf0d6c019303b7ca84e5

                      SHA1

                      2a3c737fa1157e8483815e98b666408a18c0db42

                      SHA256

                      43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

                      SHA512

                      45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

                    • C:\Users\Admin\AppData\Local\Temp\LocalSimbadbm25thr2S\softokn3.dll
                      MD5

                      a2ee53de9167bf0d6c019303b7ca84e5

                      SHA1

                      2a3c737fa1157e8483815e98b666408a18c0db42

                      SHA256

                      43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

                      SHA512

                      45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

                    • memory/1752-149-0x0000000073F80000-0x0000000073FA5000-memory.dmp
                    • memory/1752-137-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-142-0x0000000002250000-0x0000000002293000-memory.dmp
                    • memory/1752-141-0x0000000003F00000-0x00000000046D8000-memory.dmp
                    • memory/1752-146-0x00000000741E0000-0x0000000074204000-memory.dmp
                    • memory/1752-147-0x0000000074250000-0x0000000074384000-memory.dmp
                    • memory/1752-132-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-140-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-139-0x00000000768A0000-0x0000000076B21000-memory.dmp
                    • memory/1752-151-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-153-0x0000000073F80000-0x0000000073FA5000-memory.dmp
                    • memory/1752-138-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-155-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-143-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-157-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-136-0x0000000002250000-0x0000000002293000-memory.dmp
                    • memory/1752-135-0x0000000077800000-0x0000000077A15000-memory.dmp
                    • memory/1752-159-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-161-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-134-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-163-0x0000000073F20000-0x0000000073F77000-memory.dmp
                    • memory/1752-133-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-164-0x0000000000400000-0x0000000000445000-memory.dmp
                    • memory/1752-165-0x0000000002250000-0x0000000002293000-memory.dmp
                    • memory/1752-166-0x0000000003F00000-0x00000000046D8000-memory.dmp