MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9bf9df50e3c13a87226b9f9099b510947a3f8f0903b84bcfc39a625ba3342a4a. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments

SHA256 hash: 9bf9df50e3c13a87226b9f9099b510947a3f8f0903b84bcfc39a625ba3342a4a
SHA3-384 hash: 6fd02481a4b1d41e83b5970769b74122fb61c5b6b1fbeb94eef7e0db79621dd1ee5101d2034e7ae9f0ef12baa805af2e
SHA1 hash: cf01b7072683c8de9e9cffbf26bc5cb582e1b8bc
MD5 hash: 5c0b67024b247770c698bf31b9c13aa4
humanhash: king-video-yankee-nebraska
File name:file
Download: download sample
Signature Formbook
File size:306'839 bytes
First seen:2023-02-08 14:51:55 UTC
Last seen:2023-02-08 16:31:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:lYa6mAtsDVxvDl1lOjmBHmc3eukmjvVttfFeffWNgsNAAvTBr++/b:lY8AteV3nO6mc3tjvd8fWNjTByyb
TLSH T12D64235062E4C0E3E9E36A721E7A85B54BF0FE7914B1C51727A09B04BD39320FC2EB65
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon c6c6d494c4d4f400 (3 x Formbook)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-08 14:55:01 UTC
Tags:
formbook xloader trojan stealer

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
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
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 801699 Sample: file.exe Startdate: 08/02/2023 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 5 other signatures 2->53 11 file.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\kpinxfgvw.exe, PE32 11->31 dropped 14 kpinxfgvw.exe 11->14         started        process5 signatures6 65 Multi AV Scanner detection for dropped file 14->65 67 Detected unpacking (changes PE section rights) 14->67 69 Machine Learning detection for dropped file 14->69 71 3 other signatures 14->71 17 kpinxfgvw.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 6 17->20 injected process9 dnsIp10 33 www.marketproinv.info 104.21.25.228, 49721, 80 CLOUDFLARENETUS United States 20->33 35 www.n7m.tokyo 35.75.241.14, 49724, 80 AMAZON-02US United States 20->35 37 2 other IPs or domains 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 57 Performs DNS queries to domains with low reputation 20->57 24 explorer.exe 20->24         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 24->59 61 Maps a DLL or memory area into another process 24->61 63 Tries to detect virtualization through RDTSC time measurements 24->63 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2023-02-08 13:49:19 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:nes8 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
c48d8b15a2b05d3d79ea7eb7fd65eb75d42ddd2f529ba6993f26bc3443ea9703
MD5 hash:
fbebfda669bdb2164b98843121a9d8e8
SHA1 hash:
b8bb2b9ba3e84d5bbd7e0b0e58e561a8276ce288
SH256 hash:
9bf9df50e3c13a87226b9f9099b510947a3f8f0903b84bcfc39a625ba3342a4a
MD5 hash:
5c0b67024b247770c698bf31b9c13aa4
SHA1 hash:
cf01b7072683c8de9e9cffbf26bc5cb582e1b8bc
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:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Web download

Formbook

Executable exe 9bf9df50e3c13a87226b9f9099b510947a3f8f0903b84bcfc39a625ba3342a4a

(this sample)

  
Delivery method
Distributed via web download

Comments