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Analysis Report VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Overview

General Information

Sample Name:	VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Analysis ID:	395503
MD5:	b1b0e80b7df8ae67ed83e366f46b265b
SHA1:	53c2f6377d7cc97ccb2c718eeabbf16e00830656
SHA256:	ec455e6dcab1f953bd685bc9674dbe7e2fbf7afcbef4d731edd9a818048f2227
Infos:
Most interesting Screenshot:

Detection

GuLoader

Score:	76
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Multi AV Scanner detection for submitted file

Yara detected GuLoader

C2 URLs / IPs found in malware configuration

Machine Learning detection for sample

Tries to detect virtualization through RDTSC time measurements

PE file contains an invalid checksum

PE file contains strange resources

Program does not show much activity (idle)

Sample file is different than original file name gathered from version info

Uses 32bit PE files

Uses code obfuscation techniques (call, push, ret)

Classification

Startup

System is w10x64

VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe (PID: 5476 cmdline: 'C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe' MD5: B1B0E80B7DF8AE67ED83E366F46B265B)

cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=1eFQiCYQnU0gxJtdFGliDTfHvfIG3lmKt", "Injection Process": ["RegAsm.exe", "RegSvcs.exe", "MSBuild.exe"]}

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.810709106.0000000000580000.00000040.00000001.sdmp	JoeSecurity_GuLoader	Yara detected GuLoader	Joe Security

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Found malware configuration

Show sources

Source: 00000000.00000002.810709106.0000000000580000.00000040.00000001.sdmp

Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=1eFQiCYQnU0gxJtdFGliDTfHvfIG3lmKt", "Injection Process": ["RegAsm.exe", "RegSvcs.exe", "MSBuild.exe"]}

Multi AV Scanner detection for submitted file

Show sources

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Virustotal: Detection: 20%			Perma Link
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	ReversingLabs: Detection: 19%

Machine Learning detection for sample

Show sources

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Joe Sandbox ML: detected

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Networking:

C2 URLs / IPs found in malware configuration

Show sources

Source: Malware configuration extractor

URLs: https://drive.google.com/uc?export=download&id=1eFQiCYQnU0gxJtdFGliDTfHvfIG3lmKt

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815929680.0000000002B50000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenamewdmaud.drv.muij% vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.810433195.0000000000423000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameVitiations3.exe vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2X vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignalC vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignal vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignalN vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignal' vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignalI vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignal" vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.815804111.0000000002A20000.00000004.00000001.sdmp	Binary or memory string: OriginalFilenameVitiations3.exeFE2XSoftSignalT vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.812873484.00000000021F0000.00000002.00000001.sdmp	Binary or memory string: OriginalFilenameuser32j% vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Binary or memory string: OriginalFilenameVitiations3.exe vs VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: classification engine

Classification label: mal76.troj.evad.winEXE@1/0@0/0

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

File created: C:\Users\user~1\AppData\Local\Temp\~DF84F0FE996D23CFC0.TMP

Jump to behavior

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Section loaded: C:\Windows\SysWOW64\msvbvm60.dll

Jump to behavior

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Virustotal: Detection: 20%
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	ReversingLabs: Detection: 19%

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match

File source: 00000000.00000002.810709106.0000000000580000.00000040.00000001.sdmp, type: MEMORY

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Static PE information: real checksum: 0x30b8d should be: 0x33065

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_0040445E push edi; iretd	0_2_0040445F
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_0040527C push edx; ret	0_2_0040528B
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004052E0 push esi; retf	0_2_004052EA
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004032EE push edx; ret	0_2_004032EF
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_00405296 push edx; ret	0_2_0040528B
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_00401CA1 push ss; retf 0000h	0_2_00401CA2
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_00406757 push esi; iretd	0_2_004067F3
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_00403575 push 00000034h; retf	0_2_0040357E
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004067D4 push esi; iretd	0_2_004067F3
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004039D6 push edx; ret	0_2_004039FF
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004035D8 push eax; ret	0_2_004035DB
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_00403F85 push ebp; ret	0_2_00403F86
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Code function: 0_2_004067A1 push esi; iretd	0_2_004067D3

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Malware Analysis System Evasion:

Tries to detect virtualization through RDTSC time measurements

Show sources

Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	RDTSC instruction interceptor: First address: 000000000040A029 second address: 000000000040A029 instructions: 0x00000000 rdtsc 0x00000002 cmp ebx, 000000E4h 0x00000008 cmp eax, 000000A2h 0x0000000d cmp eax, 3Ch 0x00000010 cmp eax, 79h 0x00000013 cmp ebx, 0Bh 0x00000016 wait 0x00000017 fnclex 0x00000019 punpckldq xmm2, xmm3 0x0000001d paddsb mm0, mm4 0x00000020 punpcklwd mm0, mm4 0x00000023 punpckldq mm0, mm1 0x00000026 packuswb xmm5, xmm2 0x0000002a jmp 00007F45D4A1BDBBh 0x0000002c cmp eax, 3Fh 0x0000002f cmp ebx, 6Eh 0x00000032 cmp ebx, 00000096h 0x00000038 cmp edi, 002EAFF4h 0x0000003e movd mm1, ebx 0x00000041 movd mm1, ebx 0x00000044 movd mm1, ebx 0x00000047 movd mm1, ebx 0x0000004a jne 00007F45D4A1BC1Fh 0x00000050 inc edi 0x00000051 cmp eax, 47h 0x00000054 cmp ebx, 000000CDh 0x0000005a cmp ebx, 000000A7h 0x00000060 cmp eax, 000000DDh 0x00000065 cmp ebx, 36h 0x00000068 cmp eax, 3Ch 0x0000006b cmp eax, 68h 0x0000006e fdiv st(0), st(0) 0x00000070 psubusb xmm6, xmm6 0x00000074 paddw xmm1, xmm4 0x00000078 fldl2t 0x0000007a por xmm6, xmm1 0x0000007e psubw mm2, mm6 0x00000081 por mm1, mm2 0x00000084 jmp 00007F45D4A1BDBBh 0x00000086 cmp ebx, 000000C1h 0x0000008c cmp ebx, 000000AEh 0x00000092 cmp eax, 5Bh 0x00000095 rdtsc
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	RDTSC instruction interceptor: First address: 00000000005863AE second address: 00000000005833A8 instructions: 0x00000000 rdtsc 0x00000002 popad 0x00000003 test bh, ch 0x00000005 ret 0x00000006 cmp dh, bh 0x00000008 test dl, FFFFFFC4h 0x0000000b call 00007F45D4CE1CB1h 0x00000010 cmp eax, ecx 0x00000012 call 00007F45D4CDECB7h 0x00000017 test ah, bh 0x00000019 cmp cl, cl 0x0000001b cmp ch, bh 0x0000001d xor edi, edi 0x0000001f test ax, dx 0x00000022 mov ecx, 00A95F60h 0x00000027 test di, 3043h 0x0000002c push ecx 0x0000002d jmp 00007F45D4CDEDEAh 0x0000002f cmp dx, bx 0x00000032 call 00007F45D4CDEE1Bh 0x00000037 call 00007F45D4CDEE04h 0x0000003c lfence 0x0000003f mov edx, dword ptr [7FFE0014h] 0x00000045 lfence 0x00000048 ret 0x00000049 mov esi, edx 0x0000004b pushad 0x0000004c rdtsc
Source: C:\Users\user\Desktop\VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe	RDTSC instruction interceptor: First address: 00000000005833A8 second address: 00000000005833A8 instructions: 0x00000000 rdtsc 0x00000002 xor eax, eax 0x00000004 inc eax 0x00000005 cpuid 0x00000007 popad 0x00000008 call 00007F45D4A1BD84h 0x0000000d lfence 0x00000010 mov edx, dword ptr [7FFE0014h] 0x00000016 lfence 0x00000019 ret 0x0000001a sub edx, esi 0x0000001c ret 0x0000001d cmp dl, bl 0x0000001f pop ecx 0x00000020 test ax, dx 0x00000023 test edx, ebx 0x00000025 add edi, edx 0x00000027 cmp ch, FFFFFFA4h 0x0000002a dec ecx 0x0000002b nop 0x0000002c cmp ecx, 00000000h 0x0000002f jne 00007F45D4A1BD2Bh 0x00000031 push ecx 0x00000032 jmp 00007F45D4A1BD7Ah 0x00000034 cmp dx, bx 0x00000037 call 00007F45D4A1BDABh 0x0000003c call 00007F45D4A1BD94h 0x00000041 lfence 0x00000044 mov edx, dword ptr [7FFE0014h] 0x0000004a lfence 0x0000004d ret 0x0000004e mov esi, edx 0x00000050 pushad 0x00000051 rdtsc

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.812567759.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: uProgram Manager
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.812567759.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Shell_TrayWnd
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.812567759.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progman
Source: VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe, 00000000.00000002.812567759.0000000000DA0000.00000002.00000001.sdmp	Binary or memory string: Progmanlock

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Process Injection1	Process Injection1	OS Credential Dumping	Security Software Discovery1	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Application Layer Protocol1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Obfuscated Files or Information1	LSASS Memory	Process Discovery1	Remote Desktop Protocol	Data from Removable Media	Exfiltration Over Bluetooth	Junk Data	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	System Information Discovery11	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

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.

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Analysis Report VENTANASBRISA SL, COMPROBANTE DE TRANSFERENCIA PENDIENTE DE PAGO.exe

Overview

General Information

Detection

Signatures

Classification

Startup

Malware Configuration

Threatname: GuLoader

Yara Overview

Memory Dumps

Sigma Overview

Signature Overview

AV Detection:

Compliance:

Networking:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails