MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5
SHA3-384 hash: 4da55c9b90060b6103aa40af2e3e005d4693e558d0c0e4db8c0a29fc488cf57f1ee7afcd8f1e9e43b202d418e840090e
SHA1 hash: 1abc6cc80a10c121467daf7c17575c52cdb9d699
MD5 hash: 34eb323be252d7712c025703286cd104
humanhash: sink-early-beryllium-solar
File name:34eb323be252d7712c025703286cd104
Download: download sample
Signature Formbook
Create hunting rule
File size:178'688 bytes
First seen:2022-03-24 17:17:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 384:vAXc+8wAbaBFLH7x6EfeDzfWPOyDxilUFjP5Nxc2k1:IXrAb+HEZDzjyxiYJc2k1
Threatray 14'625 similar samples on MalwareBazaar
TLSH T13C046898AE0C9EDCD87BE6F14905A3592C40ED711914EC2D26FB362BC236FD6B4C91E1
File icon (PE):PE icon
dhash icon b878e8d8f4e4f8d8 (3 x Formbook, 1 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
978E634E0FC47884C40827B417C9D94D1BA9E4B4
Verdict:
Malicious activity
Analysis date:
2022-03-24 16:27:40 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/a83c592f-a321-4b21-9445-ea525adab56a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/257259/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Win.Trojan.WPDownloader-9939915-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
DNS request
Sending a custom TCP request
Running batch commands
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/623ca7d00cd58dbd92e889a5/reports/a141ebf6-32e5-498b-a223-040f2d6aacda/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/737462fd-8b76-44d5-9915-d41d810b9feb
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/963931
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found malware configuration
Injects a PE file into a foreign processes
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)
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
Self deletion via cmd delete
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected Costura Assembly Loader
Yara detected FormBook
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 596411 Sample: 6NS80nbutO Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 42 www.absolutenuisance.com 2->42 44 parkingpage.namecheap.com 2->44 72 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->72 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 13 other signatures 2->78 11 6NS80nbutO.exe 15 4 2->11         started        signatures3 process4 dnsIp5 52 cdn.discordapp.com 162.159.134.233, 443, 49764 CLOUDFLARENETUS United States 11->52 54 192.168.2.1 unknown unknown 11->54 40 C:\Users\user\AppData\...\6NS80nbutO.exe.log, ASCII 11->40 dropped 84 Encrypted powershell cmdline option found 11->84 86 Tries to detect virtualization through RDTSC time measurements 11->86 88 Injects a PE file into a foreign processes 11->88 16 6NS80nbutO.exe 11->16         started        19 cmd.exe 1 11->19         started        21 powershell.exe 13 11->21         started        file6 signatures7 process8 signatures9 56 Modifies the context of a thread in another process (thread injection) 16->56 58 Maps a DLL or memory area into another process 16->58 60 Sample uses process hollowing technique 16->60 62 Queues an APC in another process (thread injection) 16->62 23 explorer.exe 16->23 injected 27 conhost.exe 19->27         started        29 timeout.exe 1 19->29         started        31 conhost.exe 21->31         started        process10 dnsIp11 46 www.tanzibkarate.quest 23->46 48 www.tanzibkarate.quest 37.123.118.150, 49858, 80 UK2NET-ASGB United Kingdom 23->48 50 27 other IPs or domains 23->50 80 System process connects to network (likely due to code injection or exploit) 23->80 82 Performs DNS queries to domains with low reputation 23->82 33 rundll32.exe 23->33         started        signatures12 process13 signatures14 64 Self deletion via cmd delete 33->64 66 Modifies the context of a thread in another process (thread injection) 33->66 68 Maps a DLL or memory area into another process 33->68 70 Tries to detect virtualization through RDTSC time measurements 33->70 36 cmd.exe 1 33->36         started        process15 process16 38 conhost.exe 36->38         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-24 17:18:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
masslogger
Create hunting rule
Similar samples:
4362e65d6f2a5101b1f93ff87e77f0323dc58a87b4034fb2fa23fc876742b2cc
Formbook
4ef7fd77d0aeab8a926e96d00d212b4ba60c3ef74d43dc31b18780853134f13d
Formbook
667e5e3584ef11bc6dc12e693546b3a62cb487d507379e9dc4be3a1767d80be9
Formbook
cd8517b48008d82b4246f4fa0dee41f6510127486f8c1e24293174c794f35684
Formbook
da30dd86e912cbfcf0cb4306265cedf47604891dc868db7c59dd92d47ad32063
Formbook
da90895ec14c13c733ba3550194ab36a4c64130c5c2b2038c163dff0c505b3e3
Formbook
feb1580ad2cafa137008087673e30951af8d9cb32b575933267153505e9d633f
Formbook
+ 14'615 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/220324-vva3jabhh5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Unpacked files
SH256 hash:
4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5
MD5 hash:
34eb323be252d7712c025703286cd104
SHA1 hash:
1abc6cc80a10c121467daf7c17575c52cdb9d699
Link:
https://www.unpac.me/results/f1c4b87c-1722-4763-bcf8-7e55edaf0fe6/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4d1bc3b00968/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/4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
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Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Web download

Formbook

Executable exe 4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2112790/
  
URLhaus
https://urlhaus.abuse.ch/url/2114121/
Cape
Cape
https://www.capesandbox.com/analysis/257259/

Comments


Avatar
zbet commented on 2022-03-24 17:17:52 UTC

url : hxxp://103.153.77.78/__data_protect/vbc.exe