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Analysis Report Nuevo plan de pago.exe

Overview

General Information

Sample Name:Nuevo plan de pago.exe
MD5:56c8784306250dc773c8abcee177b39b
SHA1:2fcf00ce63c424c2cdc8a7c1218d8cd6a0fcf161
SHA256:b8f1486f04bdbd002fe57d8d7ab1d5092d5faf8e6203e2642ff79f03cc550fb4

Most interesting Screenshot:

Detection

GuLoader
Score:68
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Yara detected GuLoader
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Hides threads from debuggers
Tries to detect virtualization through RDTSC time measurements
Abnormal high CPU Usage
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to read the PEB
Creates a process in suspended mode (likely to inject code)
IP address seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE file contains strange resources
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Tries to load missing DLLs
Uses code obfuscation techniques (call, push, ret)

Classification

Startup

  • System is w10x64
  • Nuevo plan de pago.exe (PID: 5644 cmdline: 'C:\Users\user\Desktop\Nuevo plan de pago.exe' MD5: 56C8784306250DC773C8ABCEE177B39B)
    • RegAsm.exe (PID: 5780 cmdline: 'C:\Users\user\Desktop\Nuevo plan de pago.exe' MD5: 529695608EAFBED00ACA9E61EF333A7C)
      • conhost.exe (PID: 5788 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
00000002.00000002.1178470518.0000000000B00000.00000040.00000001.sdmpJoeSecurity_GuLoaderYara detected GuLoaderJoe Security
    Process Memory Space: RegAsm.exe PID: 5780JoeSecurity_GuLoaderYara detected GuLoaderJoe Security

      Sigma Overview

      No Sigma rule has matched

      Signature Overview

      Click to jump to signature section

      Show All Signature Results

      AV Detection:

      barindex
      Multi AV Scanner detection for submitted fileShow sources
      Source: Nuevo plan de pago.exeVirustotal: Detection: 60%Perma Link
      Source: Nuevo plan de pago.exeMetadefender: Detection: 27%Perma Link
      Source: Nuevo plan de pago.exeReversingLabs: Detection: 53%

      Source: Joe Sandbox ViewIP Address: 104.16.202.237 104.16.202.237
      Source: Joe Sandbox ViewIP Address: 104.16.202.237 104.16.202.237
      Source: Joe Sandbox ViewJA3 fingerprint: 37f463bf4616ecd445d4a1937da06e19
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B02D85 InternetReadFile,2_2_00B02D85
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: <!DOCTYPE html> <html lang="en-US" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> equals www.facebook.com (Facebook)
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: </script> <noscript><img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=542578585845936&ev=PageView&noscript=1"/></noscript> equals www.facebook.com (Facebook)
      Source: unknownDNS traffic detected: queries for: www.mediafire.com
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://fonts.googleapis.com/css?family=Open
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.google.com/recaptcha/api.js
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.googletagmanager.com/gtag/js?id=UA-829541-1
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.googletagmanager.com/gtm.js?id=
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.googletagmanager.com/ns.html?id=GTM-53LP4T
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.mediafire.com
      Source: RegAsm.exe, 00000002.00000002.1178445364.0000000000AFA000.00000004.00000001.sdmpString found in binary or memory: https://www.mediafire.com/file/0vctka12rixeagv/origin_COucqQDZv55.b
      Source: RegAsm.exe, 00000002.00000002.1178470518.0000000000B00000.00000040.00000001.sdmpString found in binary or memory: https://www.mediafire.com/file/0vctka12rixeagv/origin_COucqQDZv55.bin/file
      Source: RegAsm.exe, 00000002.00000002.1179562345.0000000002710000.00000004.00000001.sdmpString found in binary or memory: https://www.mediafire.com/images/logos/mf_logo250x250.png
      Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 49730
      Source: unknownNetwork traffic detected: HTTP traffic on port 49730 -> 443

      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess Stats: CPU usage > 98%
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212BDD NtResumeThread,0_2_02212BDD
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02210222 NtSetInformationThread,0_2_02210222
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212C3B NtResumeThread,0_2_02212C3B
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212CB4 NtResumeThread,0_2_02212CB4
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212C97 NtResumeThread,0_2_02212C97
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212DA1 NtResumeThread,0_2_02212DA1
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212DD5 NtResumeThread,0_2_02212DD5
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B02A13 NtProtectVirtualMemory,2_2_00B02A13
      Source: Nuevo plan de pago.exeStatic PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST
      Source: Nuevo plan de pago.exe, 00000000.00000002.1074522480.0000000002170000.00000002.00000001.sdmpBinary or memory string: OriginalFilenameuser32j% vs Nuevo plan de pago.exe
      Source: Nuevo plan de pago.exe, 00000000.00000002.1076558617.0000000002A60000.00000004.00000001.sdmpBinary or memory string: OriginalFilenameMiljoeertrkke8.exeFE2X vs Nuevo plan de pago.exe
      Source: Nuevo plan de pago.exe, 00000000.00000000.752436326.0000000000412000.00000002.00020000.sdmpBinary or memory string: OriginalFilenameMiljoeertrkke8.exe vs Nuevo plan de pago.exe
      Source: Nuevo plan de pago.exeBinary or memory string: OriginalFilenameMiljoeertrkke8.exe vs Nuevo plan de pago.exe
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeSection loaded: sfc.dllJump to behavior
      Source: classification engineClassification label: mal68.troj.evad.winEXE@4/0@1/1
      Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:5788:120:WilError_01
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeFile created: C:\Users\user\AppData\Local\Temp\~DF7291861CAA498BAC.TMPJump to behavior
      Source: Nuevo plan de pago.exeStatic PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeSection loaded: C:\Windows\SysWOW64\msvbvm60.dllJump to behavior
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeFile read: C:\Windows\System32\drivers\etc\hostsJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeFile read: C:\Windows\System32\drivers\etc\hostsJump to behavior
      Source: Nuevo plan de pago.exeVirustotal: Detection: 60%
      Source: Nuevo plan de pago.exeMetadefender: Detection: 27%
      Source: Nuevo plan de pago.exeReversingLabs: Detection: 53%
      Source: unknownProcess created: C:\Users\user\Desktop\Nuevo plan de pago.exe 'C:\Users\user\Desktop\Nuevo plan de pago.exe'
      Source: unknownProcess created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\Nuevo plan de pago.exe'
      Source: unknownProcess created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\Nuevo plan de pago.exe' Jump to behavior
      Source: Window RecorderWindow detected: More than 3 window changes detected

      Data Obfuscation:

      barindex
      Yara detected GuLoaderShow sources
      Source: Yara matchFile source: 00000002.00000002.1178470518.0000000000B00000.00000040.00000001.sdmp, type: MEMORY
      Source: Yara matchFile source: Process Memory Space: RegAsm.exe PID: 5780, type: MEMORY
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_00405098 push ds; ret 0_2_004050AD
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_02212632 push ds; iretd 0_2_02212636
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B030A3 pushfd ; iretd 2_2_00B030A4
      Source: initial sampleStatic PE information: section name: .text entropy: 7.06386570319

      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
      Source: C:\Windows\System32\conhost.exeProcess information set: NOOPENFILEERRORBOXJump to behavior

      Malware Analysis System Evasion:

      barindex
      Contains functionality to detect hardware virtualization (CPUID execution measurement)Show sources
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B013BA 2_2_00B013BA
      Tries to detect virtualization through RDTSC time measurementsShow sources
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeRDTSC instruction interceptor: First address: 00000000022113BD second address: 00000000022113DB instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a mov esi, edx 0x0000000c pushad 0x0000000d mov eax, 00000001h 0x00000012 cpuid 0x00000014 bt ecx, 1Fh 0x00000018 jc 00007FCCFC7B6692h 0x0000001a popad 0x0000001b lfence 0x0000001e rdtsc
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeRDTSC instruction interceptor: First address: 00000000022113DB second address: 00000000022113BD instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a sub edx, esi 0x0000000c cmp edx, 00000000h 0x0000000f jle 00007FCCFC7B5B00h 0x00000011 lfence 0x00000014 rdtsc
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeRDTSC instruction interceptor: First address: 0000000000B013BD second address: 0000000000B013DB instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a mov esi, edx 0x0000000c pushad 0x0000000d mov eax, 00000001h 0x00000012 cpuid 0x00000014 bt ecx, 1Fh 0x00000018 jc 00007FCCFC7B6692h 0x0000001a popad 0x0000001b lfence 0x0000001e rdtsc
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeRDTSC instruction interceptor: First address: 0000000000B013DB second address: 0000000000B013BD instructions: 0x00000000 rdtsc 0x00000002 lfence 0x00000005 shl edx, 20h 0x00000008 or edx, eax 0x0000000a sub edx, esi 0x0000000c cmp edx, 00000000h 0x0000000f jle 00007FCCFC7B5B00h 0x00000011 ret 0x00000012 pop ecx 0x00000013 cmp edx, 32h 0x00000016 jl 00007FCCFC7B5B26h 0x00000018 push ecx 0x00000019 call 00007FCCFC7B5B53h 0x0000001e lfence 0x00000021 rdtsc
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B013BA rdtsc 2_2_00B013BA
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe TID: 5784Thread sleep time: -510000s >= -30000sJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeLast function: Thread delayed
      Source: C:\Windows\System32\conhost.exeLast function: Thread delayed
      Source: RegAsm.exe, 00000002.00000002.1178470518.0000000000B00000.00000040.00000001.sdmpBinary or memory string: C:\Program Files\Qemu-ga\qemu-ga.exe

      Anti Debugging:

      barindex
      Hides threads from debuggersShow sources
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeThread information set: HideFromDebuggerJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeThread information set: HideFromDebuggerJump to behavior
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B013BA rdtsc 2_2_00B013BA
      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeCode function: 0_2_022119E6 LdrInitializeThunk,0_2_022119E6
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B022A6 mov eax, dword ptr fs:[00000030h]2_2_00B022A6
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B00A97 mov eax, dword ptr fs:[00000030h]2_2_00B00A97
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B00B9D mov eax, dword ptr fs:[00000030h]2_2_00B00B9D
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B012F1 mov eax, dword ptr fs:[00000030h]2_2_00B012F1
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B0241D mov eax, dword ptr fs:[00000030h]2_2_00B0241D
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B02773 mov eax, dword ptr fs:[00000030h]2_2_00B02773
      Source: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exeCode function: 2_2_00B00776 mov eax, dword ptr fs:[00000030h]2_2_00B00776

      Source: C:\Users\user\Desktop\Nuevo plan de pago.exeProcess created: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe 'C:\Users\user\Desktop\Nuevo plan de pago.exe' Jump to behavior
      Source: RegAsm.exe, 00000002.00000002.1179350973.00000000012F0000.00000002.00000001.sdmpBinary or memory string: Program Manager
      Source: RegAsm.exe, 00000002.00000002.1179350973.00000000012F0000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
      Source: RegAsm.exe, 00000002.00000002.1179350973.00000000012F0000.00000002.00000001.sdmpBinary or memory string: Progman
      Source: RegAsm.exe, 00000002.00000002.1179350973.00000000012F0000.00000002.00000001.sdmpBinary or memory string: Progmanlock

      Mitre Att&ck Matrix

      Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
      Valid AccountsGraphical User Interface1Winlogon Helper DLLProcess Injection12Software Packing1Credential DumpingVirtualization/Sandbox Evasion11Remote File Copy1Data from Local SystemData CompressedStandard Cryptographic Protocol2Eavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
      Replication Through Removable MediaService ExecutionPort MonitorsAccessibility FeaturesVirtualization/Sandbox Evasion11Network SniffingProcess Discovery1Remote ServicesData from Removable MediaExfiltration Over Other Network MediumRemote File Copy1Exploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
      External Remote ServicesWindows Management InstrumentationAccessibility FeaturesPath InterceptionProcess Injection12Input CaptureSecurity Software Discovery311Windows Remote ManagementData from Network Shared DriveAutomated ExfiltrationStandard Non-Application Layer Protocol1Exploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data
      Drive-by CompromiseScheduled TaskSystem FirmwareDLL Search Order HijackingObfuscated Files or Information2Credentials in FilesRemote System Discovery1Logon ScriptsInput CaptureData EncryptedStandard Application Layer Protocol2SIM Card SwapPremium SMS Toll Fraud
      Exploit Public-Facing ApplicationCommand-Line InterfaceShortcut ModificationFile System Permissions WeaknessDLL Side-Loading1Account ManipulationSystem Information Discovery21Shared WebrootData StagedScheduled TransferStandard Cryptographic ProtocolManipulate Device CommunicationManipulate App Store Rankings or Ratings

      Behavior Graph

      Hide Legend

      Legend:

      • Process
      • Signature
      • Created File
      • DNS/IP Info
      • Is Dropped
      • Is Windows Process
      • Number of created Registry Values
      • Number of created Files
      • Visual Basic
      • Delphi
      • Java
      • .Net C# or VB.NET
      • C, C++ or other language
      • Is malicious
      • Internet

      Screenshots

      Thumbnails

      This section contains all screenshots as thumbnails, including those not shown in the slideshow.