Analysis

  • max time kernel
    143s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2023 08:54

General

  • Target

    file.exe

  • Size

    5.2MB

  • MD5

    83ab8e3480d7543a80acf065eedba3c8

  • SHA1

    b0d24bb33730abdbe67e137a0cddbc01380aa808

  • SHA256

    80ee2b0cbfb7ecf1571669ba411b2a9bf0fc0293662a061055a17d7bdb30ead8

  • SHA512

    7cf4e5addb32e079ccbd2b185bd9b73a8667ccca2572f55fc6f02105741dd018c31452a4e3eb8ab8930ccd3ab16caec3e5e445906c104d7008f958ba2c6c15e3

  • SSDEEP

    98304:5lUfVD9zVKzdR5+SsLJdNlJPq1SoJXvaPIYh4Xbs37N3k:r6zVaj+S0jq1Soc1hyItk

Malware Config

Signatures

  • PrivateLoader

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • 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.

  • VMProtect packed file 1 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\FUl7xGdnNVgvP6FJQ_mq.exe
      "C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\FUl7xGdnNVgvP6FJQ_mq.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4660
      • C:\Windows\SysWOW64\schtasks.exe
        /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
        3⤵
        • Creates scheduled task(s)
        PID:4348
  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
      2⤵
      • Creates scheduled task(s)
      PID:3940

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\FUl7xGdnNVgvP6FJQ_mq.exe
    Filesize

    5.2MB

    MD5

    8b91589d7d7877b6469fc4647617a611

    SHA1

    9d2d311097f4379e38fff302045d71531d776107

    SHA256

    d532320ccb771301d3b9d6c0b0048ed776b1020c4480dc736163298c8ac4ab26

    SHA512

    aae95f6ad4d92ea856dae2fb6a15e3fa3ae06cd5586e692c76a05d9be59c4a27716a92cdcf884b15a705c098bf809285067d67e8b0a1355a57c308d3fab38dda

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\FUl7xGdnNVgvP6FJQ_mq.exe
    Filesize

    5.2MB

    MD5

    8b91589d7d7877b6469fc4647617a611

    SHA1

    9d2d311097f4379e38fff302045d71531d776107

    SHA256

    d532320ccb771301d3b9d6c0b0048ed776b1020c4480dc736163298c8ac4ab26

    SHA512

    aae95f6ad4d92ea856dae2fb6a15e3fa3ae06cd5586e692c76a05d9be59c4a27716a92cdcf884b15a705c098bf809285067d67e8b0a1355a57c308d3fab38dda

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\FUl7xGdnNVgvP6FJQ_mq.exe
    Filesize

    5.2MB

    MD5

    8b91589d7d7877b6469fc4647617a611

    SHA1

    9d2d311097f4379e38fff302045d71531d776107

    SHA256

    d532320ccb771301d3b9d6c0b0048ed776b1020c4480dc736163298c8ac4ab26

    SHA512

    aae95f6ad4d92ea856dae2fb6a15e3fa3ae06cd5586e692c76a05d9be59c4a27716a92cdcf884b15a705c098bf809285067d67e8b0a1355a57c308d3fab38dda

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\freebl3.dll
    Filesize

    326KB

    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\softokn3.dll
    Filesize

    141KB

    MD5

    a2ee53de9167bf0d6c019303b7ca84e5

    SHA1

    2a3c737fa1157e8483815e98b666408a18c0db42

    SHA256

    43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

    SHA512

    45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\softokn3.dll
    Filesize

    141KB

    MD5

    a2ee53de9167bf0d6c019303b7ca84e5

    SHA1

    2a3c737fa1157e8483815e98b666408a18c0db42

    SHA256

    43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

    SHA512

    45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

  • C:\Users\Admin\AppData\Local\Temp\LocalSimba2XtFde0yK7o\softokn3.dll
    Filesize

    141KB

    MD5

    a2ee53de9167bf0d6c019303b7ca84e5

    SHA1

    2a3c737fa1157e8483815e98b666408a18c0db42

    SHA256

    43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

    SHA512

    45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

  • C:\Users\Admin\AppData\Local\Temp\LocalSimbl2XtFde0yK7o\information.txt
    Filesize

    3KB

    MD5

    0cb17968e757b1757905e034847ab67e

    SHA1

    5b068ffb0693fe7810e502b29463776775cc3dd3

    SHA256

    e509120807d0798051a58c463e0a59c5bc47049f9e1f040a2783911f403b2d79

    SHA512

    8fbd6dae672191c59f54606aad305aeececa012a3916bc1268c0a3597abb50ae4ba938bc132c9812d261b76b2a1decfcbd30f7e7edd6b0d8139d280ee2ab8eb2

  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    Filesize

    5.2MB

    MD5

    8b91589d7d7877b6469fc4647617a611

    SHA1

    9d2d311097f4379e38fff302045d71531d776107

    SHA256

    d532320ccb771301d3b9d6c0b0048ed776b1020c4480dc736163298c8ac4ab26

    SHA512

    aae95f6ad4d92ea856dae2fb6a15e3fa3ae06cd5586e692c76a05d9be59c4a27716a92cdcf884b15a705c098bf809285067d67e8b0a1355a57c308d3fab38dda

  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    Filesize

    5.2MB

    MD5

    8b91589d7d7877b6469fc4647617a611

    SHA1

    9d2d311097f4379e38fff302045d71531d776107

    SHA256

    d532320ccb771301d3b9d6c0b0048ed776b1020c4480dc736163298c8ac4ab26

    SHA512

    aae95f6ad4d92ea856dae2fb6a15e3fa3ae06cd5586e692c76a05d9be59c4a27716a92cdcf884b15a705c098bf809285067d67e8b0a1355a57c308d3fab38dda

  • memory/1064-273-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/1064-270-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/1064-266-0x0000000002BB0000-0x0000000002BB1000-memory.dmp
    Filesize

    4KB

  • memory/1064-265-0x0000000002B90000-0x0000000002B91000-memory.dmp
    Filesize

    4KB

  • memory/1064-264-0x0000000001090000-0x0000000001091000-memory.dmp
    Filesize

    4KB

  • memory/1064-262-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/1064-261-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/1688-133-0x0000000000180000-0x0000000000BEE000-memory.dmp
    Filesize

    10.4MB

  • memory/4660-251-0x0000000002BC0000-0x0000000002BC1000-memory.dmp
    Filesize

    4KB

  • memory/4660-258-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/4660-245-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/4660-254-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/4660-253-0x0000000002BE0000-0x0000000002BE1000-memory.dmp
    Filesize

    4KB

  • memory/4660-252-0x0000000002BD0000-0x0000000002BD1000-memory.dmp
    Filesize

    4KB

  • memory/4660-246-0x0000000000400000-0x0000000000F7C000-memory.dmp
    Filesize

    11.5MB

  • memory/4660-250-0x0000000001110000-0x0000000001111000-memory.dmp
    Filesize

    4KB

  • memory/4660-249-0x00000000010F0000-0x00000000010F1000-memory.dmp
    Filesize

    4KB

  • memory/4660-248-0x0000000001000000-0x0000000001001000-memory.dmp
    Filesize

    4KB