MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd
SHA3-384 hash: 9777ed7e011d06b85a67481101fd9a4fac487f344983acc2b43ab5ec1a9b304bdb71a486a12c33f42fee9d1fc3fca155
SHA1 hash: 2abc7b500dab24f627983868b38bcd4339ac5185
MD5 hash: c516116fe61221dd8d318f1245803438
humanhash: asparagus-victor-april-beer
File name:4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2023-04-20 10:15:46 UTC
Last seen:2023-04-24 07:58:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:wBfukkpsKtV73CliVM5Zal1ZGjAmvsGk/XpwM0yjZzHPoz:3HTCkSZal1ZGhUGSZzHPoz
Threatray 2'721 similar samples on MalwareBazaar
TLSH T16704AE32DA41C035F2B251B5F6BD1B7B883D4D353294A4E6A3E216E06FE09A5B43931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
237
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/383681/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Banker1.29984.UNOFFICIAL
Create hunting rule

Win.Malware.Formbook-7399661-0
Create hunting rule

Win.Malware.Formbook-9951997-0
Create hunting rule

Win.Malware.Formbook-9964980-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/644110f22505c9cd829ecb03/reports/8470ea22-a2e7-4b0c-946a-39ed6150d827/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/85451e61-6cef-452f-b463-5517cb0a21db
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1217965
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-04-20 10:16:15 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6l35bx5steeumonrku33nbrbjwskhifmdrd525zhwcfs3pxfx6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4f285ae8e4b4fc0bc50cb639a413412a276f7d187770da6fb5e089eeeff9145e
Formbook
51054c5181fc248a1642dc3a5cdb7f353aaf5d136aa20bdc59084970e74c5a8b
Formbook
70f32a20f79a7bff35560af814867b770998faf1be40fd3dc04ddab93c45f6e0
Formbook
860942d3b0190341282f2ae2d76d65f0374698fc48852aeda79966130bd68216
Formbook
9580bddf76a3d9179e760fba40850e85f6dc3baad1356165b78cf160bad11f28
Formbook
a72d23291c793083519a7095c31a259f88b62f15759f7988894bf6b99903cc23
Formbook
bfcbf155faa8aecc2dc01ad0be69001953610f947b97eb8298c88932eb7b6edd
Formbook
ed236ec0b877086ffbdd929f5beec3818c032744d9f088c45b3a348f5648d038
Formbook
f3bc0aabd3ffd26912977ae43d90b5ee187da63436b4395489f75a13012e7dda
Formbook
f6530f654262274b3f1debb0bc6b3de7686fd551224a03a3d0814b45c7e431ea
Formbook
+ 2'711 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cx01 rat
Link:
https://tria.ge/reports/230420-massvabb6s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd
MD5 hash:
c516116fe61221dd8d318f1245803438
SHA1 hash:
2abc7b500dab24f627983868b38bcd4339ac5185
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/107e2412-fd47-472f-89a7-fbdc08cfb4a9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f97be86fd94/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd

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
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

Executable exe 4f97be86fd94c84a31cd8aa9bdb4310a6d251d0560e23eebb93d84596df72dfd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/383681/

Comments