Malicious PDF — malware analysis report

Static analysis result for SHA-256 e18f1ba1525301b1…

MALICIOUS

PDF

36.3 KB Authoring application: Adobe PDF Library 9.0
MD5: 11764011855456830c608e7e8900157b SHA-1: 251e875986b3f38e8c76d91d2c66afc6dd597dc9 SHA-256: e18f1ba1525301b1658a34177343bac58dfe87f9ce704263c49341f0d7f75956
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malware. The ClamAV detection and ML classifier strongly indicate malicious intent. The heuristic 'PDF_SEO_LINK_FARM' directly identifies the mass linking behavior, with the primary domain being 'bandito.agency'. No scripts were extracted, but the document body, though truncated, contains references to Adobe PDF Library and unrelated text, suggesting it's primarily a container for the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://bandito.agency/uploads/1/3/0/3/130323106/490213.pdf
    • http://realwebstack.com/uploads/1/3/0/4/130483232/liwim_bejoliwibixo_gipitaferabamo.pdf
    • http://libowangshangyule.f18.ebkf.org/uploads/1/3/0/6/130604198/6796080.pdf
    • http://theproblemsolversnc.com/uploads/1/3/0/7/130739769/8085221.pdf
    • http://thehavens.club/uploads/1/3/0/7/130739346/fiwujapajixige.pdf
    • http://hurricanebusinessclaimspr.com/uploads/1/3/0/4/130483552/a67d14c6f999897.pdf
    • http://mikediamondservices.us/uploads/1/3/0/6/130603832/835e5.pdf
    • http://texasstocklawyer.com/uploads/1/3/0/6/130604423/rakulapadabamure.pdf
    • http://mshvita.com/uploads/1/3/0/6/130621896/1290118.pdf
    • http://taxnotaryprestamos.com/uploads/1/3/0/2/130289636/86d7d28dc2e.pdf
    • http://fkox.com/uploads/1/3/0/6/130639123/be4a982615a797.pdf
    • http://lasihiomo.fi/uploads/1/3/0/4/130476307/3e61abd.pdf
    • http://taurusbulldesigns.com/uploads/1/3/0/5/130551198/dawejumijekadatozoka.pdf
    • http://younglivingdaily.com/uploads/1/3/0/5/130589163/kokutilefalarojiwu.pdf
    • http://www.allsofuckinggood.com/uploads/1/3/0/5/130539553/1122478.pdf
    • http://kanduetmgmt.com/uploads/1/3/0/5/130546645/2820452.pdf
    • http://knowntobefalse.com/uploads/1/3/0/2/130289632/livijisexilo-wejuwenud-tukajod-xusesakamuk.pdf
    • http://michiganmarriagecounseling.com/uploads/1/3/0/2/130292007/6966918.pdf
    • http://rockcrossingcc.com/uploads/1/3/0/2/130292179/bujetuvukelox-sulodumawunexux-pidezuduzoralik-moxunejup.pdf
    • http://swag.org.uk/uploads/1/3/0/2/130288361/dunilivetadogol.pdf
    • http://www.smrb.fr/uploads/1/3/0/3/130323315/1913944.pdf
    • http://allthingsandre.com/uploads/1/3/0/5/130588445/ponazivo.pdf
    • http://www.dantoned.com/uploads/1/3/0/2/130291527/130291527.html#airtel+4g+hotspot+postpaid+data+plans
    • http://thehavens.c

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a2b.bin
603d4ee74537214cd8b11a0598331a2b2104d572fecdfd6e8aa52f8af6b196ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2B 8532 bytes

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