MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
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SHA256 hash: b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5
SHA3-384 hash: 2acb3fcfadfdc9e5d796f2b60263e72d14d7a89b9df2968a108b1f84b76aa7db2aecf5271570af898e58dcbd55f7e15e
SHA1 hash: d1d710735cbf60232be9a08fb526d51300b89814
MD5 hash: 405dca5b11734e04f59f9d864c4c26da
humanhash: blue-pasta-mars-sodium
File name:405dca5b11734e04f59f9d864c4c26da.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:823'808 bytes
First seen:2022-03-25 18:17:05 UTC
Last seen:2024-07-24 20:38:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:2orPGQzfjrpQlwCPlE8J3LGus6i+29KUCCysk:rGQbjrnUTJbGuri+29NDBk
Threatray 14'418 similar samples on MalwareBazaar
TLSH T11205AE086EEC98889EFEB37DAA75287F1285640F7D1EE92D207C4DF0668C085AD177C5
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/257873/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.48715005.23864.7832.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Reading critical registry keys
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/623e07621f204239482b1228/reports/4202e0e5-718b-409f-9553-691721cb74bb/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:
Unknown
Link:
https://analyze.intezer.com/analyses/6a9851bb-fd17-43a5-b21d-f254353a472a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/964849
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 597331 Sample: MkFX3RptDN.exe Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 59 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 14 other signatures 2->65 10 MkFX3RptDN.exe 1 2->10         started        process3 file4 43 C:\Users\user\AppData\...\MkFX3RptDN.exe.log, ASCII 10->43 dropped 79 Injects a PE file into a foreign processes 10->79 14 rundll32.exe 10->14         started        signatures5 process6 signatures7 81 Modifies the context of a thread in another process (thread injection) 14->81 83 Maps a DLL or memory area into another process 14->83 85 Sample uses process hollowing technique 14->85 87 2 other signatures 14->87 17 explorer.exe 3 6 14->17 injected process8 dnsIp9 45 www.tanzibkarate.quest 37.123.118.150, 49874, 49875, 49876 UK2NET-ASGB United Kingdom 17->45 47 paprikaproduksiyon.com 46.28.239.13, 49782, 80 PREMIERDC-VERI-MERKEZI-ANONIM-SIRKETIPREMIERDC-SHTR Turkey 17->47 49 31 other IPs or domains 17->49 41 C:\Users\user\AppData\...\5jhxihmhefbp.exe, PE32 17->41 dropped 67 System process connects to network (likely due to code injection or exploit) 17->67 69 Benign windows process drops PE files 17->69 22 cscript.exe 1 12 17->22         started        26 5jhxihmhefbp.exe 17->26         started        28 5jhxihmhefbp.exe 17->28         started        30 5jhxihmhefbp.exe 17->30         started        file10 signatures11 process12 dnsIp13 51 www.gamiteisnowjoyned.com 22->51 53 34.240.138.196, 49867, 80 AMAZON-02US United States 22->53 55 52.30.141.161, 49865, 80 AMAZON-02US United States 22->55 71 Tries to steal Mail credentials (via file / registry access) 22->71 73 Tries to harvest and steal browser information (history, passwords, etc) 22->73 75 Modifies the context of a thread in another process (thread injection) 22->75 77 2 other signatures 22->77 32 cmd.exe 2 22->32         started        35 cmd.exe 1 22->35         started        signatures14 process15 signatures16 57 Tries to harvest and steal browser information (history, passwords, etc) 32->57 37 conhost.exe 32->37         started        39 conhost.exe 35->39         started        process17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-03-25 06:37:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzfx2hmmjfcajns7biytiy5stiouoaxt66zib2xuei5krhuqol2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
23b95932bc14abb03868830a3d298d5282cfdffccf34b8ec7e62ec8ffb4a2f40
Formbook
4362e65d6f2a5101b1f93ff87e77f0323dc58a87b4034fb2fa23fc876742b2cc
Formbook
4d1bc3b0096832b12fac401d7c92e3e50d4a1a328435ef2463b2cb0138feb6a5
Formbook
4ef7fd77d0aeab8a926e96d00d212b4ba60c3ef74d43dc31b18780853134f13d
Formbook
667e5e3584ef11bc6dc12e693546b3a62cb487d507379e9dc4be3a1767d80be9
Formbook
9e986640add85898682bd60fbce67445eeaa363f04683991ce067c73fd1e0f0a
Formbook
cd8517b48008d82b4246f4fa0dee41f6510127486f8c1e24293174c794f35684
Formbook
+ 14'408 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:dgrg loader rat suricata
Link:
https://tria.ge/reports/220325-ww4a5sfhcr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5
MD5 hash:
405dca5b11734e04f59f9d864c4c26da
SHA1 hash:
d1d710735cbf60232be9a08fb526d51300b89814
Link:
https://www.unpac.me/results/8ee58bc9-1c4a-4f2a-988a-dc32e76b7973/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b64b7d1d8c49/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5

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:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Web download

Formbook

Executable exe b64b7d1d8c494404b65f0a313463b29a1d4702f3f7b280eaf4223aa89e9072f5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2112790/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/257873/

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