MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f12df428fa830292897aabb6f73c5ecf96e855e278c3320e21e45629c84bf9ef. 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: 7
| SHA256 hash: | f12df428fa830292897aabb6f73c5ecf96e855e278c3320e21e45629c84bf9ef |
|---|---|
| SHA3-384 hash: | e7cd8b8d24624ff1fd484263d1d9c0db4dbb518f22d6eb751950071b7557bac610dc4c9c4ec53c500fa519d612e3613b |
| SHA1 hash: | e87fbc8d77a456d97cd0c7d8a1f69752f2ef50b0 |
| MD5 hash: | 084d9c372d05fc7450a7acc2d730e40a |
| humanhash: | utah-purple-foxtrot-dakota |
| File name: | SecuriteInfo.com.BehavesLike.Win32.Generic.ch.17772 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 836'096 bytes |
| First seen: | 2021-02-19 15:07:45 UTC |
| Last seen: | 2021-02-19 15:54:50 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:AlNwTyzx+jxivZgVm2WCD1QbwBaYCQJVHmlZ:AlNwWN+jwZSm2ZivqJVHyZ |
| Threatray | 3'853 similar samples on MalwareBazaar |
| TLSH | B5057B3AAB444BD6C5A0FBBAC397960457F0F4D75732F74B2FA91AE008231C15A7E225 |
| Reporter |  SecuriteInfoCom |
| Tags: | FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
162
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching the process to change network settings
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
Unauthorized injection to a system process
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.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2021-02-19 11:39:09 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'843 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook agilenet rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.guanmei2020.com/dyt/
Unpacked files
SH256 hash:
f12df428fa830292897aabb6f73c5ecf96e855e278c3320e21e45629c84bf9ef
MD5 hash:
084d9c372d05fc7450a7acc2d730e40a
SHA1 hash:
e87fbc8d77a456d97cd0c7d8a1f69752f2ef50b0
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.
Web download
Delivery method
Distributed via web download
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