MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d35f40a630b2e4b24ec76c354e1e66d927afe339aaba45ff3c750ed52193c910. 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: 10
| SHA256 hash: | d35f40a630b2e4b24ec76c354e1e66d927afe339aaba45ff3c750ed52193c910 |
|---|---|
| SHA3-384 hash: | e420c5442247d9e19cb1ccb2651dca30d3cdddf0de445d1694db0048224b990a34343e26ee335fdbb2240829092b49ae |
| SHA1 hash: | 034fa27d6464b2e3f9467b07d6a550fe6065af7c |
| MD5 hash: | 1a91df34bd10cd10bee65b36d4474ea5 |
| humanhash: | sad-enemy-wisconsin-wolfram |
| File name: | Booking confirmation.exe |
| Download: | download sample |
| Signature | FormBook |
| File size: | 1'182'102 bytes |
| First seen: | 2020-08-04 06:21:00 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla) |
| ssdeep | 24576:bNA3R5drXdFdCp5S9b7HT4dyfS7JZ/gU1jZFQYcHO6lUR5:G5NMOsdp7JZX1jZ63Of |
| Threatray | 2'479 similar samples on MalwareBazaar |
| TLSH | D0451202BBD2C4B2E6321D365936A7207D7DBC701F38CB5FB7E45E58C9311819622B66 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook |
abuse_ch
Malspam distributing FormBook:HELO: web01.hostasean.com
Sending IP: 103.104.61.10
From: BOOKING.COM <admin@booking.com>
Reply-To: finance.booking.com@outlook.com
Subject: GROUP CONFIRMATION
Attachment: Booking confirmation.rar (contains "Booking confirmation.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending a UDP request
Creating a process from a recently created file
Creating a file
Creating a file in the %temp% directory
Adding an access-denied ACE
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Detected FormBook malware
Drops PE files with a suspicious file extension
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sleep loop found (likely to delay execution)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
Win32.Trojan.Ymacco
Status:
Malicious
First seen:
2020-08-04 06:22:11 UTC
AV detection:
31 of 48 (64.58%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 2'469 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
rat trojan spyware stealer family:formbook persistence evasion
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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