MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63. 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: 4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63
SHA3-384 hash: b1ec290cb19e1510e71026d88fe067e903bebb14d6314ae448de7e70d4170c3eed0e6303ba5e2d3a63f8f8cf51ed6162
SHA1 hash: df4b4038f9bfcb320b84d81c49f3ef9eb4c49106
MD5 hash: 23cc5925e86f20f1c3c76ed18dc70630
humanhash: texas-cup-march-pluto
File name:4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63
Download: download sample
Signature Formbook
Create hunting rule
File size:185'856 bytes
First seen:2023-03-27 05:28:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:2bX4kQvFJdO43t/c5scFV6hP/zSJRDUweMoeks3jG1ZlRRR:BU2tk5B6hP/MD9e3eHzG1Z
Threatray 2'427 similar samples on MalwareBazaar
TLSH T13404AE36DA42C071F2B211B4B6B91B7B493E0D343295A5EAA3E619E01FF44A5F43931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
226
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63
Verdict:
No threats detected
Analysis date:
2023-03-27 05:41:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e5942e21-988d-45a9-9bb3-f90ca507f8e0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/377716/
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
Searching for the window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/6421299e9c109cf74b2ffd73/reports/bd705301-8b2f-41ca-bdd2-709128d52dc4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63
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/f6591348-8b37-41e0-86c9-b9c1ad7ae1a3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202412
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in 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
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 835317 Sample: FrZzJOJLcA.exe Startdate: 27/03/2023 Architecture: WINDOWS Score: 100 24 www.energytechnicalsystems.com 2->24 26 parkingpage.namecheap.com 2->26 40 Snort IDS alert for network traffic 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 6 other signatures 2->46 10 FrZzJOJLcA.exe 2->10         started        signatures3 process4 signatures5 48 Modifies the context of a thread in another process (thread injection) 10->48 50 Maps a DLL or memory area into another process 10->50 52 Sample uses process hollowing technique 10->52 54 2 other signatures 10->54 13 explorer.exe 2 6 10->13 injected process6 dnsIp7 28 davidmchughroofing.co.uk 76.223.105.230, 49697, 80 AMAZON-02US United States 13->28 30 www.davidmchughroofing.co.uk 13->30 32 www.888sq.club 13->32 56 System process connects to network (likely due to code injection or exploit) 13->56 58 Uses netstat to query active network connections and open ports 13->58 17 NETSTAT.EXE 13->17         started        signatures8 process9 signatures10 34 Modifies the context of a thread in another process (thread injection) 17->34 36 Maps a DLL or memory area into another process 17->36 38 Tries to detect virtualization through RDTSC time measurements 17->38 20 cmd.exe 1 17->20         started        process11 process12 22 conhost.exe 20->22         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-03-27 05:29:06 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=jzsygbvq4ph66pddltubit6ik27q3zor67a4p5eaugf2hgmpzvrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
01ab7eab84acdfbdf2f3addd8894d10cfc7993c11c7cfb3754fb649d9be86264
Formbook
60f8c4a0b8195562a53f3d4c8fbc885b606924a2a871185e13391f4a2e7cdec8
Formbook
6f4246a44c4b69ed8cc30d0583be906c7a8040216321889da1bd74ba7815aedd
Formbook
a5976236ba0b3e31a6dd09af3abe7d0121a4053bb22669869a874d1ba97bd495
Formbook
b846523d8b67f881870a47eca4690dde8454c30fbf50660fc023578c145c0143
Formbook
d0f12689eacf1ad6c798d62635bf7f18a855264a42e072ca9a2cb6a742a39dba
Formbook
e8120ddaa86fc56ab083a38b22ca366809e5d1196f3c10175bc745e3dfd15750
Formbook
f3bc0aabd3ffd26912977ae43d90b5ee187da63436b4395489f75a13012e7dda
Formbook
fb4c3c803b69b2823f0bb584ef77da38f17eaf18184058249b6dd7664234cb53
Formbook
fef348f0a51720ef524010b7225f6d338e10654e4fc13f4a6b89b07deafd35f7
Formbook
+ 2'417 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:n13e rat
Link:
https://tria.ge/reports/230327-f6knsabh42/
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63
MD5 hash:
23cc5925e86f20f1c3c76ed18dc70630
SHA1 hash:
df4b4038f9bfcb320b84d81c49f3ef9eb4c49106
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/ffc97531-6fea-4952-998a-7efbfbdb25e6/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4e658306b0e3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.76
Link:
https://yomi.yoroi.company/submissions/4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63

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 4e658306b0e3cfef3c635ce8144fc856bf0de5d1f7c1c7f480a18ba3998fcd63

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/377716/

Comments