Loading Joe Sandbox Report ...

Edit tour

Windows Analysis Report
UNUy8dUYWp.exe

Overview

General Information

Sample Name:UNUy8dUYWp.exe (renamed file extension from exe to dll)
Analysis ID:745030
MD5:3b7c18542e60716ebb377fce79f27b1e
SHA1:7df5649f7c8f8ed59f931f08ec0311bbf08d12e1
SHA256:8ec69127e6c6676189caf841242091ddd3365b52d4bf91967338534cf14eb9e5
Tags:dllexe
Infos:

Detection

Emotet
Score:84
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected Emotet
System process connects to network (likely due to code injection or exploit)
Snort IDS alert for network traffic
Creates an autostart registry key pointing to binary in C:\Windows
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Queries the volume information (name, serial number etc) of a device
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Deletes files inside the Windows folder
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Creates files inside the system directory
PE file contains sections with non-standard names
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality which may be used to detect a debugger (GetProcessHeap)
IP address seen in connection with other malware
Tries to load missing DLLs
Drops PE files to the windows directory (C:\Windows)
Connects to several IPs in different countries
Registers a DLL
Found large amount of non-executed APIs
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • loaddll64.exe (PID: 5548 cmdline: loaddll64.exe "C:\Users\user\Desktop\UNUy8dUYWp.dll" MD5: C676FC0263EDD17D4CE7D644B8F3FCD6)
    • conhost.exe (PID: 5464 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • cmd.exe (PID: 5492 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\UNUy8dUYWp.dll",#1 MD5: 4E2ACF4F8A396486AB4268C94A6A245F)
      • rundll32.exe (PID: 1308 cmdline: rundll32.exe "C:\Users\user\Desktop\UNUy8dUYWp.dll",#1 MD5: 73C519F050C20580F8A62C849D49215A)
        • regsvr32.exe (PID: 5356 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\ZWpHraPiSSirRmt\eJPBXUgBzVlFM.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • regsvr32.exe (PID: 780 cmdline: regsvr32.exe /s C:\Users\user\Desktop\UNUy8dUYWp.dll MD5: D78B75FC68247E8A63ACBA846182740E)
      • regsvr32.exe (PID: 5340 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\HqxIOWhu\iwDMK.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • rundll32.exe (PID: 1236 cmdline: rundll32.exe C:\Users\user\Desktop\UNUy8dUYWp.dll,DllRegisterServer MD5: 73C519F050C20580F8A62C849D49215A)
      • regsvr32.exe (PID: 5336 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\LhPRdzdtIG\UwTqVItszcvDL.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
    • regsvr32.exe (PID: 5644 cmdline: C:\Windows\system32\regsvr32.exe "C:\Windows\system32\OSbbRH\JNviIfIAbu.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
  • regsvr32.exe (PID: 5332 cmdline: C:\Windows\system32\regsvr32.exe" "C:\Windows\system32\ZWpHraPiSSirRmt\eJPBXUgBzVlFM.dll MD5: D78B75FC68247E8A63ACBA846182740E)
    • regsvr32.exe (PID: 3644 cmdline: C:\Windows\system32\regsvr32.exe "C:\Users\user\AppData\Local\XkUZzl\jVHLVoJmMjstBzLj.dll" MD5: D78B75FC68247E8A63ACBA846182740E)
  • cleanup
{"C2 list": ["172.105.115.71:8080", "218.38.121.17:443", "186.250.48.5:443", "103.71.99.57:8080", "85.214.67.203:8080", "85.25.120.45:8080", "139.196.72.155:8080", "103.85.95.4:8080", "198.199.70.22:8080", "209.239.112.82:8080", "78.47.204.80:443", "36.67.23.59:443", "104.244.79.94:443", "62.171.178.147:8080", "195.77.239.39:8080", "103.56.149.105:8080", "80.211.107.116:8080", "93.104.209.107:8080", "174.138.33.49:7080", "202.28.34.99:8080", "178.62.112.199:8080", "114.79.130.68:443", "118.98.72.86:443", "103.41.204.169:8080", "178.238.225.252:8080", "83.229.80.93:8080", "46.101.98.60:8080", "82.98.180.154:7080", "87.106.97.83:7080", "196.44.98.190:8080", "139.59.80.108:8080", "103.224.241.74:8080", "103.254.12.236:7080", "185.148.169.10:8080", "165.22.254.236:8080", "37.44.244.177:8080", "54.37.228.122:443", "51.75.33.122:443", "128.199.217.206:443", "188.165.79.151:443", "210.57.209.142:8080", "160.16.143.191:8080", "175.126.176.79:8080", "202.134.4.210:7080", "103.126.216.86:443", "190.145.8.4:443", "128.199.242.164:8080", "64.227.55.231:8080"], "Public Key": ["RUNTMSAAAAD0LxqDNhonUYwk8sqo7IWuUllRdUiUBnACc6romsQoe1YJD7wIe4AheqYofpZFucPDXCZ0z9i+ooUffqeoLZU0E8QRc3YRAIA=", "RUNLMSAAAADYNZPXY4tQxd/N4Wn5sTYAm5tUOxY2ol1ELrI4MNhHNi640vSLasjYTHpFRBoG+o84vtr7AJachCzOHjaAJFCWZsRGc3oCAIA="]}
SourceRuleDescriptionAuthorStrings
00000006.00000002.836176237.0000000000B00000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
    00000006.00000002.838389607.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
      00000000.00000002.328659948.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
        00000003.00000002.325472244.0000000180001000.00000020.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
          0000000C.00000002.475211024.0000000002D40000.00000040.00001000.00020000.00000000.sdmpJoeSecurity_Emotet_1Yara detected EmotetJoe Security
            Click to see the 7 entries
            SourceRuleDescriptionAuthorStrings
            3.2.regsvr32.exe.cf0000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
              5.2.rundll32.exe.1a64a260000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                5.2.rundll32.exe.1a64a260000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                  3.2.regsvr32.exe.cf0000.0.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                    4.2.rundll32.exe.18426f90000.0.raw.unpackJoeSecurity_Emotet_1Yara detected EmotetJoe Security
                      Click to see the 7 entries
                      No Sigma rule has matched
                      Timestamp:192.168.2.4115.178.55.2249695802404304 11/13/22-17:51:55.664778
                      SID:2404304
                      Source Port:49695
                      Destination Port:80
                      Protocol:TCP
                      Classtype:A Network Trojan was detected

                      Click to jump to signature section

                      Show All Signature Results

                      AV Detection

                      barindex
                      Source: UNUy8dUYWp.dllVirustotal: Detection: 43%Perma Link
                      Source: 00000006.00000002.836253516.0000000000B4B000.00000004.00000020.00020000.00000000.sdmpMalware Configuration Extractor: Emotet {"C2 list": ["172.105.115.71:8080", "218.38.121.17:443", "186.250.48.5:443", "103.71.99.57:8080", "85.214.67.203:8080", "85.25.120.45:8080", "139.196.72.155:8080", "103.85.95.4:8080", "198.199.70.22:8080", "209.239.112.82:8080", "78.47.204.80:443", "36.67.23.59:443", "104.244.79.94:443", "62.171.178.147:8080", "195.77.239.39:8080", "103.56.149.105:8080", "80.211.107.116:8080", "93.104.209.107:8080", "174.138.33.49:7080", "202.28.34.99:8080", "178.62.112.199:8080", "114.79.130.68:443", "118.98.72.86:443", "103.41.204.169:8080", "178.238.225.252:8080", "83.229.80.93:8080", "46.101.98.60:8080", "82.98.180.154:7080", "87.106.97.83:7080", "196.44.98.190:8080", "139.59.80.108:8080", "103.224.241.74:8080", "103.254.12.236:7080", "185.148.169.10:8080", "165.22.254.236:8080", "37.44.244.177:8080", "54.37.228.122:443", "51.75.33.122:443", "128.199.217.206:443", "188.165.79.151:443", "210.57.209.142:8080", "160.16.143.191:8080", "175.126.176.79:8080", "202.134.4.210:7080", "103.126.216.86:443", "190.145.8.4:443", "128.199.242.164:8080", "64.227.55.231:8080"], "Public Key": ["RUNTMSAAAAD0LxqDNhonUYwk8sqo7IWuUllRdUiUBnACc6romsQoe1YJD7wIe4AheqYofpZFucPDXCZ0z9i+ooUffqeoLZU0E8QRc3YRAIA=", "RUNLMSAAAADYNZPXY4tQxd/N4Wn5sTYAm5tUOxY2ol1ELrI4MNhHNi640vSLasjYTHpFRBoG+o84vtr7AJachCzOHjaAJFCWZsRGc3oCAIA="]}
                      Source: C:\Windows\System32\loaddll64.exeCode function: 0_2_00007FF87C2F9410 CryptStringToBinaryA,CryptStringToBinaryA,0_2_00007FF87C2F9410
                      Source: C:\Windows\System32\regsvr32.exeCode function: 3_2_00007FF87C2F9410 CryptStringToBinaryA,CryptStringToBinaryA,3_2_00007FF87C2F9410
                      Source: UNUy8dUYWp.dllStatic PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
                      Source: C:\Windows\System32\loaddll64.exeCode function: 0_2_00007FF87C2EC334 FindFirstFileExW,0_2_00007FF87C2EC334
                      Source: C:\Windows\System32\regsvr32.exeCode function: 3_2_00007FF87C2EC334 FindFirstFileExW,3_2_00007FF87C2EC334

                      Networking