MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b860c68b8a4ca548c005de132b6b2870a43baab32df04c32588d70da1ae47b6e. 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


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: b860c68b8a4ca548c005de132b6b2870a43baab32df04c32588d70da1ae47b6e
SHA3-384 hash: 9bfa23e73effc7fb32467c8b6f5e1af4eee8fa6e5f7130af139acb55e1c4509abea1177ec329f66e672b397dd8447335
SHA1 hash: ee4668ea45d2a36340013c7c6860fe8b84e59340
MD5 hash: 8785259d560146a34d3acee816148e2b
humanhash: sad-bacon-charlie-mountain
File name:Revised Invoice.exe
Download: download sample
Signature FormBook
File size:1'046'016 bytes
First seen:2020-08-17 17:43:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:F8FiOc9sv11qYKc8/p/7VUiUXtPSEMOXa59XeyRkiTF5X:F8Fx7grrBpUdqEV49XneiT
Threatray 2'242 similar samples on MalwareBazaar
TLSH 7C25D053638DAB2EC6BE42B7F0B508169BB4C65571CFE39A1DCCA9B06CD33644DCA160
Reporter James_inthe_box
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Sending a UDP request
Launching cmd.exe command interpreter
Setting browser functions hooks
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.evad
Score:
92 / 100
Signature
Initial sample is a PE file and has a suspicious name
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
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-17 11:18:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook persistence
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.chemoly.com/hcn/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

  
Delivery method
Other

Comments