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Windows Analysis Report
cqu7x.exe

Overview

General Information

Sample Name:cqu7x.exe
Analysis ID:743908
MD5:e449924b8aa04fa2e032511cf86d2482
SHA1:bc9c00e0841a84fbc45d9ef36422eac3590b590f
SHA256:b9fd7622c3fcfdd6eb9b2cb917a3cb64eb35c61221de4866303ca88d828d5bed
Infos:

Detection

Ursnif, SmokeLoader
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Benign windows process drops PE files
Malicious sample detected (through community Yara rule)
Yara detected Ursnif
Yara detected SmokeLoader
System process connects to network (likely due to code injection or exploit)
Detected unpacking (changes PE section rights)
Antivirus detection for URL or domain
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Snort IDS alert for network traffic
Maps a DLL or memory area into another process
Writes or reads registry keys via WMI
Found API chain indicative of debugger detection
Machine Learning detection for sample
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Found evasive API chain (may stop execution after checking system information)
Deletes itself after installation
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Writes registry values via WMI
Checks if the current machine is a virtual machine (disk enumeration)
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
Contains functionality to query locales information (e.g. system language)
May sleep (evasive loops) to hinder dynamic analysis
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Contains functionality to query CPU information (cpuid)
Found potential string decryption / allocating functions
Sample execution stops while process was sleeping (likely an evasion)
Contains functionality to call native functions
Contains functionality to dynamically determine API calls
PE file contains executable resources (Code or Archives)
Downloads executable code via HTTP
Contains long sleeps (>= 3 min)
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Drops files with a non-matching file extension (content does not match file extension)
Drops PE files
Tries to load missing DLLs
Uses a known web browser user agent for HTTP communication
Found evasive API chain checking for process token information
Checks if the current process is being debugged
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Dropped file seen in connection with other malware
Uses Microsoft's Enhanced Cryptographic Provider
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • cqu7x.exe (PID: 1924 cmdline: C:\Users\user\Desktop\cqu7x.exe MD5: E449924B8AA04FA2E032511CF86D2482)
    • explorer.exe (PID: 3528 cmdline: C:\Windows\Explorer.EXE MD5: AD5296B280E8F522A8A897C96BAB0E1D)
      • 3196.exe (PID: 5156 cmdline: C:\Users\user\AppData\Local\Temp\3196.exe MD5: 969DB79BF21624D4135B30DF17777ABA)
  • vcivdjd (PID: 5384 cmdline: C:\Users\user\AppData\Roaming\vcivdjd MD5: E449924B8AA04FA2E032511CF86D2482)
  • cleanup
{"RSA Public Key": "srPNiXjpv7wJ4ljQO2Cz+d/1vQBpygFC+rxzA2ZfCG08A38OH/syLbdWurZUpeEopKx867ngBKiBCYKNKuEDO5TdpRu4icgODSbD5/RNGSb+8EPLgpbbUWScIJhsIrETgOb66YOp+zXevxRZPgG4/Be11WPFR9E0BCGig1wWjBqPcgDkZrDVTybbNAiB7WBjbG26Z+ggDYdJguf/gj1lSfHj+pVn5ZXxO1AaPWJ6kcSiCUWT5R2TFH550ig+/ppqRx4AuhLwYOZC0vaWmmGmwIQY5kixhB7e1gjnjAY57OHcecvOgqGpesvGL4Tg09kRioFbkNzrDQj66EB4YZ2LyeusAf9F2LccLOvlZsjgV04=", "c2_domain": ["telemetry.skype.com", "spotuoyoliusdd.ru", "sspotuoyobermanoba4.ru", "gdospotuoyluiprada8.ru", "messpotuoyoosd.ru", "klspotuoyka93hhu8.ru", "chespotuoynedr.ru"], "botnet": "15072022", "server": "50", "serpent_key": "NAyL8tmsHrJ4ZWxJ", "sleep_time": "1", "CONF_TIMEOUT": "20", "SetWaitableTimer_value": "0"}
{"C2 list": ["http://klenoviycdesss.ru/", "http://pali44unkis9.ru/", "http://goalichkindomik.ru/"]}
SourceRuleDescriptionAuthorStrings
00000006.00000002.586811866.0000000001318000.00000004.00000020.00020000.00000000.sdmpWindows_Trojan_Gozi_fd494041unknownunknown
  • 0xff0:$a1: /C ping localhost -n %u && del "%s"
  • 0xf20:$a2: /C "copy "%s" "%s" /y && "%s" "%s"
  • 0xec8:$a3: /C "copy "%s" "%s" /y && rundll32 "%s",%S"
  • 0xca8:$a5: filename="%.4u.%lu"
  • 0x803:$a7: version=%u&soft=%u&user=%08x%08x%08x%08x&server=%u&id=%u&type=%u&name=%s
  • 0x63a:$a8: %08X-%04X-%04X-%04X-%08X%04X
  • 0xa41:$a8: %08X-%04X-%04X-%04X-%08X%04X
  • 0xe72:$a9: &whoami=%s
  • 0xe5a:$a10: %u.%u_%u_%u_x%u
  • 0xc22:$a11: size=%u&hash=0x%08x
  • 0xc13:$a12: &uptime=%u
  • 0xda7:$a13: %systemroot%\system32\c_1252.nls
  • 0x1416:$a14: IE10RunOnceLastShown_TIMESTAMP
00000006.00000002.586811866.0000000001318000.00000004.00000020.00020000.00000000.sdmpWindows_Trojan_Gozi_261f5ac5unknownunknown
  • 0xbd3:$a1: soft=%u&version=%u&user=%08x%08x%08x%08x&server=%u&id=%u&crc=%x
  • 0x803:$a2: version=%u&soft=%u&user=%08x%08x%08x%08x&server=%u&id=%u&type=%u&name=%s
  • 0xc74:$a3: Content-Disposition: form-data; name="upload_file"; filename="%.4u.%lu"
  • 0xafa:$a5: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT %u.%u%s)
  • 0xd4b:$a9: Software\AppDataLow\Software\Microsoft\
  • 0x1868:$a9: Software\AppDataLow\Software\Microsoft\
00000000.00000002.415776182.0000000002381000.00000004.10000000.00040000.00000000.sdmpJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
    00000000.00000002.415776182.0000000002381000.00000004.10000000.00040000.00000000.sdmpWindows_Trojan_Smokeloader_4e31426eunknownunknown
    • 0x384:$a: 5B 81 EB 34 10 00 00 6A 30 58 64 8B 00 8B 40 0C 8B 40 1C 8B 40 08 89 85 C0
    00000000.00000002.415123167.0000000000520000.00000004.00000800.00020000.00000000.sdmpJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
      Click to see the 16 entries
      SourceRuleDescriptionAuthorStrings
      4.2.vcivdjd.4d0e50.1.raw.unpackJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
        0.3.cqu7x.exe.520000.0.raw.unpackJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
          4.2.vcivdjd.400000.0.unpackJoeSecurity_SmokeLoader_2Yara detected SmokeLoaderJoe Security
            6.2.loader_250246_15072022_2203_31102022.exe.d394a0.2.raw.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
              6.2.loader_250246_15072022_2203_31102022.exe.430000.1.unpackJoeSecurity_Ursnif_1Yara detected UrsnifJoe Security
                Click to see the 3 entries
                No Sigma rule has matched
                Timestamp:192.168.2.437.140.192.15849695802851815 11/11/22-12:22:52.606242
                SID:2851815
                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: cqu7x.exeReversingLabs: Detection: 92%
                Source: cqu7x.exeMetadefender: Detection: 40%Perma Link
                Source: http://dindunketagestan.ru/Avira URL Cloud: Label: malware
                Source: http://klenoviycdesss.ru/Avira URL Cloud: Label: malware
                Source: http://goalichkindomik.ru/Avira URL Cloud: Label: malware
                Source: http://pali44unkis9.ru/Avira URL Cloud: Label: malware
                Source: C:\Users\user\AppData\Local\Temp\loader_250246_15072022_2203_31102022.exeAvira: detection malicious, Label: TR/Crypt.XPACK.Gen7
                Source: C:\Users\user\AppData\Roaming\vcivdjdAvira: detection malicious, Label: TR/AD.GenSHCode.nsnoi
                Source: C:\Users\user\AppData\Local\Temp\3196.exeReversingLabs: Detection: 60%
                Source: C:\Users\user\AppData\Local\Temp\loader_250246_15072022_2203_31102022.exeReversingLabs: Detection: 88%
                Source: C:\Users\user\AppData\Roaming\vcivdjdReversingLabs: Detection: 92%
                Source: C:\Users\user\AppData\Roaming\vcivdjdMetadefender: Detection: 40%Perma Link
                Source: cqu7x.exeJoe Sandbox ML: detected
                Source: C:\Users\user\AppData\Local\Temp\loader_250246_15072022_2203_31102022.exeJoe Sandbox ML: detected
                Source: C:\Users\user\AppData\Local\Temp\3196.exeJoe Sandbox ML: detected
                Source: C:\Users\user\AppData\Roaming\vcivdjdJoe Sandbox ML: detected
                Source: 6.2.loader_250246_15072022_2203_31102022.exe.400000.0.unpackAvira: Label: TR/Crypt.XPACK.Gen7
                Source: 5.2.3196.exe.2aed320.1.unpackAvira: Label: TR/Patched.Ren.Gen
                Source: 6.0.loader_250246_15072022_2203_31102022.exe.400000.0.unpackAvira: Label: TR/Crypt.XPACK.Gen7
                Source: 4.0.vcivdjd.400000.0.unpackAvira: Label: TR/AD.GenSHCode.nsnoi
                Source: 0.0.cqu7x.exe.400000.0.unpackAvira: Label: TR/AD.GenSHCode.nsnoi
                Source: 5.2.3196.exe.2ae3f04.0.unpackAvira: Label: TR/Patched.Ren.Gen4
                Source: 00000000.00000002.415776182.0000000002381000.00000004.10000000.00040000.00000000.sdmpMalware Configuration Extractor: SmokeLoader {"C2 list": ["http://klenoviycdesss.ru/", "http://pali44unkis9.ru/", "http://goalichkindomik.ru/"]}
                Source: 6.2.loader_250246_15072022_2203_31102022.exe.d394a0.2.raw.unpackMalware Configuration Extractor: Ursnif {"RSA Public Key": "srPNiXjpv7w