MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c23263bd63c444fd26b4653e26332fcb6f7444064d282c2327983d92fe3e5046. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: c23263bd63c444fd26b4653e26332fcb6f7444064d282c2327983d92fe3e5046
SHA3-384 hash: 193b0526c068a9378f707eee96d9d2fe4206e2a5d75f4c7a9fb865a4c0a0198187b730243f506287ecfd0985d68b505c
SHA1 hash: 15db79699dcef4eb5d731108aad6f97b2dc0ec9c
MD5 hash: 4c55147185dc6c7e6f192683f408ec26
humanhash: december-east-diet-single
File name:ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe
Download: download sample
Signature Formbook
File size:483'216 bytes
First seen:2023-01-17 07:27:34 UTC
Last seen:2023-01-17 09:33:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:AKwi9Yx9Ej3lKw3kInI0y5HUrYI1jDAJcKnsf6QTl:l0qVKwFI0+Hk35WcKMTl
Threatray 960 similar samples on MalwareBazaar
TLSH T19BA412793D6623D1E93D4BBDBD1300A21BF5149B7C52EF1A2CC562EA054A38182C2B6F
TrID 44.4% (.EXE) Win64 Executable (generic) (10523/12/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter 0xToxin
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Microsoft Corporation
Issuer:Microsoft Corporation
Algorithm:sha256WithRSAEncryption
Valid from:2023-01-16T20:37:24Z
Valid to:2024-01-16T20:37:24Z
Serial number: b6bce5a3c0e0111b78adf33d9fdc3793
Thumbprint Algorithm:SHA256
Thumbprint: 80de45c7a5744b99707c0175f6499140358ac7c662ed7e138105dae5fb6a8075
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
2
# of downloads :
246
Origin country :
IL IL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-01-17 07:28:16 UTC
Tags:
stealer trojan formbook

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Creating a service
Loading a system driver
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Changing a file
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Reading critical registry keys
Launching the process to change network settings
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Blocking the User Account Control
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
No Threat
Threat level:
  2/10
Confidence:
80%
Tags:
overlay packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Creates autostart registry keys with suspicious names
Disables UAC (registry)
Early bird code injection technique detected
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample is not signed and drops a device driver
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 785578 Sample: ORIGINAL BL_INVOICE_PL_DELI... Startdate: 17/01/2023 Architecture: WINDOWS Score: 100 75 Snort IDS alert for network traffic 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 11 other signatures 2->81 10 ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe 6 5 2->10         started        process3 file4 59 C:\Users\user\AppData\Local\Temp\?????.sys, PE32+ 10->59 dropped 61 ORIGINAL BL_INVOIC...ADDRESS_PDF.exe.log, CSV 10->61 dropped 95 Creates autostart registry keys with suspicious names 10->95 97 Writes to foreign memory regions 10->97 99 Adds a directory exclusion to Windows Defender 10->99 101 3 other signatures 10->101 14 jsc.exe 10->14         started        17 ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe 10->17         started        19 aspnet_regbrowsers.exe 10->19         started        21 16 other processes 10->21 signatures5 process6 signatures7 103 Modifies the context of a thread in another process (thread injection) 14->103 105 Maps a DLL or memory area into another process 14->105 107 Sample uses process hollowing technique 14->107 109 Queues an APC in another process (thread injection) 14->109 23 explorer.exe 10 5 14->23 injected 111 Writes to foreign memory regions 17->111 113 Injects a PE file into a foreign processes 17->113 115 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 19->115 27 conhost.exe 21->27         started        process8 dnsIp9 67 www.baldur-power.com 217.160.0.223, 49698, 49699, 80 ONEANDONE-ASBrauerstrasse48DE Germany 23->67 69 www.popimart.xyz 192.64.115.133, 49700, 49701, 80 NAMECHEAP-NETUS United States 23->69 71 5 other IPs or domains 23->71 89 System process connects to network (likely due to code injection or exploit) 23->89 91 Early bird code injection technique detected 23->91 93 Performs DNS queries to domains with low reputation 23->93 29 ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe 4 23->29         started        33 chkdsk.exe 23->33         started        35 ORIGINAL BL_INVOICE_PL_DELIVERYADDRESS_PDF.exe 4 23->35         started        signatures10 process11 file12 63 C:\Windows\Temp\krftnzpg.inf, Windows 29->63 dropped 117 Writes to foreign memory regions 29->117 119 Adds a directory exclusion to Windows Defender 29->119 121 Injects a PE file into a foreign processes 29->121 37 jsc.exe 29->37         started        40 powershell.exe 29->40         started        43 cmstp.exe 29->43         started        51 2 other processes 29->51 123 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->123 125 Tries to steal Mail credentials (via file / registry access) 33->125 127 Tries to harvest and steal browser information (history, passwords, etc) 33->127 129 2 other signatures 33->129 65 C:\Windows\Temp\1z554hgt.inf, Windows 35->65 dropped 45 powershell.exe 35->45         started        47 chkdsk.exe 35->47         started        49 cmstp.exe 35->49         started        53 7 other processes 35->53 signatures13 process14 dnsIp15 83 Modifies the context of a thread in another process (thread injection) 37->83 85 Maps a DLL or memory area into another process 37->85 87 Sample uses process hollowing technique 37->87 73 192.168.2.1 unknown unknown 40->73 55 conhost.exe 40->55         started        57 conhost.exe 45->57         started        signatures16 process17
Threat name:
ByteCode-MSIL.Trojan.Heracles
Status:
Malicious
First seen:
2023-01-16 22:29:14 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
1
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Loads dropped DLL
Uses the VBS compiler for execution
Windows security modification
Blocklisted process makes network request
Looks for VMWare Tools registry key
Sets service image path in registry
Looks for VirtualBox Guest Additions in registry
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
c23263bd63c444fd26b4653e26332fcb6f7444064d282c2327983d92fe3e5046
MD5 hash:
4c55147185dc6c7e6f192683f408ec26
SHA1 hash:
15db79699dcef4eb5d731108aad6f97b2dc0ec9c
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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