Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d60788dcc557edc…

MALICIOUS

PDF

48.9 KB Created: 2020-07-12 21:01:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-07
MD5: ce0ea5c2b8e47c044957177345f5f1da SHA-1: 244ffdd426a41f0b4ff6a7aa16ac558b8ab83a52 SHA-256: 0d60788dcc557edc69de0a6734de2e3cc3b086fe82f60c102a34dd2fdb4947f3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external PDFs hosted on SEO-optimized domains, many of which redirect through malicious infrastructure like 'ttraff.cc'. This pattern is indicative of a phishing or malware distribution campaign, likely using the document as a lure to encourage downloads of further malicious content. No scripts were extracted, but the PDF structure and embedded links strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.cc/wb?keyword=uv%20calibration%20procedure%20pdf In PDF document text
    • http://files.firststopwindows.com/uploads/1/3/0/8/130813921/9003502.pdfIn PDF document text
    • http://files.skategravitate.com/uploads/1/3/0/9/130969673/lumaromedonewo_miburuxuk_suvejitepa_xepuviruto.pdfIn PDF document text
    • http://files.uwacumedia.com/uploads/1/3/1/0/131070572/sodatixotugarelilol.pdfIn PDF document text
    • http://files.brendargarcia.com/uploads/1/3/1/1/131164351/sodoxo-kifaleb-vakebikote.pdfIn PDF document text
    • http://files.firstlutheranricelake.com/uploads/1/3/1/1/131164456/susod.pdfIn PDF document text
    • http://files.4-ucorp.com/uploads/1/3/0/7/130739567/7385382.pdfIn PDF document text
    • http://files.waytobe.net/uploads/1/3/0/7/130738628/zazokavum.pdfIn PDF document text
    • http://files.encorect.org/uploads/1/3/0/9/130968961/podoxelosa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bidazinefak.files.wordpress.com/2020/06/76603841750.pdfIn PDF document text
    • https://robepeler.files.wordpress.com/2020/06/3867605176.pdfIn PDF document text
    • https://zoroxozuwo.files.wordpress.com/2020/06/70570963328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6515/5489/files/davozefuxujalovoxokerefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/lawufivonigogupasuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/luvikumefoporedufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/20461482694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18983443830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/79667972290.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000798f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x798F 5044 bytes
SHA-256: 1716137c19e457b05a188a7e1c3dae2a293fd38895645b3284ed59962a14fb7e
font_01_sfnt_off00008ab9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB9 13716 bytes
SHA-256: 3cbb5265fc827976f10fec7ebb8b9e7bc9f62ce20a7265d709b11afb3623eb92

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