download:

vbc.exe

Full analysis: https://app.any.run/tasks/4dd9acd9-b63b-47a4-9ab1-e2aaf8045066
Verdict: Malicious activity
Threats:

FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus.

Analysis date: June 27, 2022, 09:52:21
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
formbook
trojan
stealer
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

444536AA1F919776C176230FDE84B1F5

SHA1:

CDF02CF3309CE107F71F5B6D88155F682EF5615D

SHA256:

1CBD3337B16B5BC9CF9A448349DAF9B7D1667BC689D992AF9D15C5AF950852F9

SSDEEP:

6144:aW6GJqi8h6cZeoO+Hn96gfS1Ach8R3oQVSgy3SPBS:CkceobfS1KRLVST2BS

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

    • FORMBOOK was detected

      • Explorer.EXE (PID: 1464)
    • Connects to CnC server

      • Explorer.EXE (PID: 1464)
    • FORMBOOK detected by memory dumps

      • msdt.exe (PID: 2652)
  • SUSPICIOUS

    • Reads the computer name

      • vbc.exe (PID: 2832)
      • cvtres.exe (PID: 2460)
    • Checks supported languages

      • vbc.exe (PID: 2832)
      • cvtres.exe (PID: 2460)
    • Starts CMD.EXE for commands execution

      • msdt.exe (PID: 2652)
    • Reads Environment values

      • msdt.exe (PID: 2652)
  • INFO

    • Checks supported languages

      • msdt.exe (PID: 2652)
      • cmd.exe (PID: 2976)
    • Reads the computer name

      • msdt.exe (PID: 2652)
    • Manual execution by user

      • msdt.exe (PID: 2652)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (41)
.exe | Win64 Executable (generic) (36.3)
.dll | Win32 Dynamic Link Library (generic) (8.6)
.exe | Win32 Executable (generic) (5.9)
.exe | Win16/32 Executable Delphi generic (2.7)

EXIF

EXE

AssemblyVersion: 1.0.0.0
ProductVersion: 1.0.0.0
ProductName: NBCXBNKJDFJKDF
OriginalFileName: NBCXBNKJDFJKDF.exe
LegalTrademarks: -
LegalCopyright: Copyright © 2022
InternalName: NBCXBNKJDFJKDF.exe
FileVersion: 1.0.0.0
FileDescription: NBCXBNKJDFJKDF
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: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x459be
UninitializedDataSize: -
InitializedDataSize: 2560
CodeSize: 276992
LinkerVersion: 6
PEType: PE32
TimeStamp: 2022:06:22 08:21:44+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 22-Jun-2022 06:21:44
Debug artifacts:
  • NBCXBNKJDFJKDF.pdb
Comments: -
CompanyName: -
FileDescription: NBCXBNKJDFJKDF
FileVersion: 1.0.0.0
InternalName: NBCXBNKJDFJKDF.exe
LegalCopyright: Copyright © 2022
LegalTrademarks: -
OriginalFilename: NBCXBNKJDFJKDF.exe
ProductName: NBCXBNKJDFJKDF
ProductVersion: 1.0.0.0
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: 4
Time date stamp: 22-Jun-2022 06:21:44
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_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x000439C4
0x00043A00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.65085
.sdata
0x00046000
0x000001E8
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.64099
.rsrc
0x00048000
0x000005D8
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.21505
.reloc
0x0004A000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
37
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start vbc.exe no specs cvtres.exe no specs #FORMBOOK msdt.exe no specs cmd.exe no specs #FORMBOOK explorer.exe

Process information

PID
CMD
Path
Indicators
Parent process
1464C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.exe
c:\windows\system32\ntdll.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\system32\gdi32.dll
c:\windows\system32\user32.dll
2460"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exevbc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
12.00.51209.34209 built by: FX452RTMGDR
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\cvtres.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\ntdll.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\system32\user32.dll
c:\windows\system32\gdi32.dll
2652"C:\Windows\System32\msdt.exe"C:\Windows\System32\msdt.exe
Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Diagnostics Troubleshooting Wizard
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msdt.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\rpcrt4.dll
2832"C:\Users\admin\AppData\Local\Temp\vbc.exe" C:\Users\admin\AppData\Local\Temp\vbc.exeExplorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
NBCXBNKJDFJKDF
Exit code:
0
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\vbc.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
2976/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\System32\cmd.exemsdt.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
Total events
120
Read events
120
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
4
DNS requests
2
Threats
8

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1464
Explorer.EXE
GET
200
51.195.62.160:80
http://www.strongdigits.com/n8it/?mBc=8T2Uslqhn6i69ml6AatAbHvegSoBRNrTkrTpwZmKlkitPLVTSdkVFG2Jv7jWJxCksKXniQ==&wP=Otcl
GB
html
1.41 Kb
malicious
1464
Explorer.EXE
GET
200
66.45.234.6:80
http://www.pettigestudio.com/n8it/?mBc=lwhgJACVge40PRDcbKsbZmT+WqSi4w3vn26RMSX8Lv7A4MsO0g8FeRLRhZo5c4suuh6M5w==&wP=Otcl
US
html
1.31 Kb
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1464
Explorer.EXE
51.195.62.160:80
www.strongdigits.com
GB
malicious
1464
Explorer.EXE
66.45.234.6:80
www.pettigestudio.com
NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
US
malicious

DNS requests

Domain
IP
Reputation
www.strongdigits.com
  • 51.195.62.160
malicious
www.pettigestudio.com
  • 66.45.234.6
malicious

Threats

PID
Process
Class
Message
1464
Explorer.EXE
Generic Protocol Command Decode
SURICATA HTTP Unexpected Request body
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
1464
Explorer.EXE
Generic Protocol Command Decode
SURICATA HTTP Unexpected Request body
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
1464
Explorer.EXE
A Network Trojan was detected
ET TROJAN FormBook CnC Checkin (GET)
No debug info