Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f6752b91f57108…

MALICIOUS

PDF

39.9 KB Created: 2020-05-23 12:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cc22b971e7835b521da519ec5d35cb41 SHA-1: 74ab7343cd0f231f4e14a7f512cedb86bad6d764 SHA-256: f2f6752b91f571083e440fd8cd30de6862a5a24ab8b57deeb7ec9634fd31b6ba
94 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier. It contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a mechanism to distribute further malicious content. The primary attack pattern observed is the mass distribution of external links, likely for SEO manipulation or to serve as a landing page for other threats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://colorado-es.com/uploads/1/3/1/6/131606491/131606491.html#photoshop+porque+um+sofn+dqt+ou+dht
    • http://wealthmgmt.tax/uploads/1/3/1/3/131380138/gilamexo-dajipoketujerej.pdf
    • http://steadfastdiesel.com/uploads/1/3/1/4/131452840/nugel.pdf
    • http://elitsan.boutique/uploads/1/3/0/2/130274088/b9ead5.pdf
    • http://laurenmawhinney.com/uploads/1/3/0/5/130588291/5728c4a684e1f.pdf
    • http://mail1.pennyhuntcopywriting.com/uploads/1/3/0/3/130379482/jokusokumikir-roguleza.pdf
    • http://morwennabrady.com/uploads/1/3/0/3/130379314/fimolepip-vujolosubif-jokozinepekero.pdf
    • http://oneschoolsystem.com/uploads/1/3/1/4/131437977/7cb4cc1e61e.pdf
    • http://whitegoldearthbuilders.com/uploads/1/3/0/6/130621859/672142.pdf
    • http://bbnla.com/uploads/1/3/0/6/130604363/dufelutusigixaborili.pdf
    • http://tacomasecurityguardservices.com/uploads/1/3/0/6/130639685/51788.pdf
    • http://fifthyearbrewery.com/uploads/1/3/1/6/131636843/xifarefiwepog.pdf
    • http://thetrainingcentre.org/uploads/1/3/0/7/130775623/voxanuvu.pdf
    • http://madtama.com/uploads/1/3/0/7/130739573/59cbafa2f.pdf
    • http://rcmillwork.ca/uploads/1/3/1/4/131453335/vivijijiwiduve.pdf
    • http://boorskale.com/uploads/1/3/1/3/131382366/lavid.pdf
    • http://bloggingwithty.com/uploads/1/3/1/8/131860553/5955875.pdf
    • http://nwpropertysolutions.org/uploads/1/3/0/5/130543816/3542089.pdf
    • http://the4thleveloffinancialfreedom.com/uploads/1/3/0/4/130436204/dalomafafa_fipofi_kamarojisejin.pdf
    • http://lsbookkeeping.org/uploads/1/3/1/3/131398259/7b1d77cf0552.pdf
    • http://goodhemp4u.com/uploads/1/3/1/6/131636872/a5301b38291b9.pdf
    • http://deepdixiepleasurehorseclub.com/uploads/1/3/0/6/130605253/luperew.pdf
    • http://prayforthebay.com/uploads/1/3/0/5/130540040/6d9814b.pdf
    • http://rendezvousformalwear.com/uploads/1/3/0/4/130490875/wepogakurot-fomefuvuguje-zolumapogefesok-lodod.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c7e.bin
b12ab6043273f199ec373de6023962a0651017b6f80bb2376b144ec906ee5330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7E 11628 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.