File name:

Crespo_Loader.exe

Full analysis: https://app.any.run/tasks/77550324-3dd0-451d-b918-89fa8aaeb212
Verdict: Malicious activity
Analysis date: May 20, 2022, 19:47:48
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

5943965F378DB145560FA78E197629E3

SHA1:

45320E550743B9EFF38F21D56E063EC44B52EAF4

SHA256:

06786D8228EF769681E43E641B9C4DDF8A699C5D66B7A3B8C5BD3D43F103549B

SSDEEP:

24576:/6v0j6nANax1yzDvFlQ5QPANax1yzDvFlQ5QfiuTqBriHdI3666666yW8:qxMzBlWoxMzBlWdZiH

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Drops executable file immediately after starts

      • h4BFoAZj.exe (PID: 3040)
      • Crespo_Loader.exe (PID: 2468)

    • Application was dropped or rewritten from another process

      • h4BFoAZj.exe (PID: 3040)

  • SUSPICIOUS

    • Checks supported languages

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

    • Reads the computer name

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

    • Reads Environment values

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

    • Creates files in the user directory

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

    • Drops a file with a compile date too recent

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

    • Executable content was dropped or overwritten

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)

  • INFO

    • Reads settings of System Certificates

      • Crespo_Loader.exe (PID: 2468)
      • h4BFoAZj.exe (PID: 3040)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

AssemblyVersion: 1.0.0.0
ProductVersion: 1
ProductName: Crespo_Loader
OriginalFileName: Crespo_Loader.exe
LegalTrademarks: -
LegalCopyright: Copyright © 2021-2022 Crespo
InternalName: Crespo_Loader.exe
FileVersion: 1
FileDescription: Crespo_Loader
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.0
FileVersionNumber: 1.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 6
ImageVersion: -
OSVersion: 4
EntryPoint: 0x2b7a6e
UninitializedDataSize: -
InitializedDataSize: 112128
CodeSize: 2841600
LinkerVersion: 48
PEType: PE32
TimeStamp: 2042:12:14 10:47:28+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 08-Nov-1906 03:19:12
Debug artifacts:
  • D:\Launcher Source\DLL INJECTOR\Crespo_Loader v1.0 100 %\Crespo_Loader\obj\Debug\Crespo_Loader.pdb
Comments: -
CompanyName: -
FileDescription: Crespo_Loader
FileVersion: 1.0
InternalName: Crespo_Loader.exe
LegalCopyright: Copyright © 2021-2022 Crespo
LegalTrademarks: -
OriginalFilename: Crespo_Loader.exe
ProductName: Crespo_Loader
ProductVersion: 1.0
Assembly Version: 1.0.0.0

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 08-Nov-1906 03:19:12
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x002B5A74
0x002B5C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.39257
.rsrc
0x002B8000
0x0001B3A0
0x0001B400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.77025
.reloc
0x002D4000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0980042

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST
2
4.20534
67624
UNKNOWN
UNKNOWN
RT_ICON
3
4.22907
16936
UNKNOWN
UNKNOWN
RT_ICON
4
4.71635
9640
UNKNOWN
UNKNOWN
RT_ICON
5
4.73217
4264
UNKNOWN
UNKNOWN
RT_ICON
6
5.22475
1128
UNKNOWN
UNKNOWN
RT_ICON
32512
2.79908
90
UNKNOWN
UNKNOWN
RT_GROUP_ICON

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
37
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start crespo_loader.exe h4bfoazj.exe

Process information

PID
CMD
Path
Indicators
Parent process
2468"C:\Users\admin\AppData\Local\Temp\Crespo_Loader.exe" C:\Users\admin\AppData\Local\Temp\Crespo_Loader.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
Crespo_Loader
Exit code:
0
Version:
1.0
Modules
Images
c:\users\admin\appdata\local\temp\crespo_loader.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
3040"C:\Users\admin\AppData\Local\Temp\h4BFoAZj.exe" C:\Users\admin\AppData\Local\Temp\h4BFoAZj.exe
Crespo_Loader.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Crespo_Loader
Exit code:
0
Version:
1.0
Modules
Images
c:\windows\system32\ntdll.dll
c:\users\admin\appdata\local\temp\h4bfoazj.exe
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
Total events
6 949
Read events
6 881
Write events
68
Delete events
0

Modification events

(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASMANCS
Operation:writeName:FileTracingMask
Value:
(PID) Process:(2468) Crespo_Loader.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Crespo_Loader_RASMANCS
Operation:writeName:ConsoleTracingMask
Value:
Executable files
3
Suspicious files
0
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
3040h4BFoAZj.exeC:\Users\admin\AppData\Roaming\Crespo\DLLs\CrespoMenu.dllexecutable
MD5:—
SHA256:—
2468Crespo_Loader.exeC:\Users\admin\AppData\Local\Temp\h4BFoAZj.exeexecutable
MD5:—
SHA256:—
2468Crespo_Loader.exeC:\Users\admin\AppData\Roaming\Crespo\DLLs\CrespoMenu.dllexecutable
MD5:—
SHA256:—
2468Crespo_Loader.exeC:\Crespo\Logs\Loader.txttext
MD5:8079E0CEE9D92853F24EEF4998EF8FAD
SHA256:7B6B7F63D3D65B2B7FD560FAD1EB4A6E470B950F5D491056A75554DAE7B44C72
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
11
DNS requests
5
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2468
Crespo_Loader.exe
85.128.137.106:443
www.crespomods.com
Nazwa.pl Sp.z.o.o.
PL
unknown
2468
Crespo_Loader.exe
185.199.108.133:443
raw.githubusercontent.com
GitHub, Inc.
NL
malicious
3040
h4BFoAZj.exe
85.128.137.106:443
www.crespomods.com
Nazwa.pl Sp.z.o.o.
PL
unknown
3040
h4BFoAZj.exe
185.199.108.133:443
raw.githubusercontent.com
GitHub, Inc.
NL
malicious
—
—
192.168.100.2:53
—
—
—
whitelisted
2468
Crespo_Loader.exe
140.82.121.4:443
github.com
—
US
malicious
3040
h4BFoAZj.exe
140.82.121.4:443
github.com
—
US
malicious

DNS requests

Domain
IP
Reputation
www.microsoft.com
  • —
whitelisted
www.crespomods.com
  • 85.128.137.106
unknown
crespomods.com
  • 85.128.137.106
unknown
github.com
  • 140.82.121.4
malicious
raw.githubusercontent.com
  • 185.199.108.133
  • 185.199.109.133
  • 185.199.110.133
  • 185.199.111.133
shared

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
Crespo_Loader.exe