Malicious PDF — malware analysis report

Static analysis result for SHA-256 af246aef175fab1f…

MALICIOUS

PDF

48.8 KB Created: 2020-08-05 03:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 767fab1d5a527b8fbaff154f1f0eb5f1 SHA-1: 2f08d29581363704167791ad940369b10dd1e983 SHA-256: af246aef175fab1fd733ae2337a40dfe9857541fa612127f2d4a6035aa0fa1d4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=meteorological+station+pdf'. This URL is likely part of a phishing or redirection chain designed to lead the user to malicious content. The document also contains a large number of embedded links, many hosted on shopify.com, which is flagged as a PDF link farm. The document body itself is heavily obfuscated and contains the malicious redirector URL, suggesting the primary intent is to trick the user into clicking the link.

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.ru/pify?keyword=meteorological+station+pdf In PDF document text
    • http://files.princetonclubbiggestloser.com/uploads/1/3/1/0/131070689/5232987.pdfIn PDF document text
    • http://files.maxstrength.org/uploads/1/3/1/3/131383613/faxetonelajaki_zipob_zasuduror_tivabibovizi.pdfIn PDF document text
    • http://files.maritimeheritagepress.com/uploads/1/3/0/9/130969077/6523106.pdfIn PDF document text
    • http://files.shonkalay.com/uploads/1/3/0/7/130739601/buvifopolafap-fajezuxujovuwu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/kefezodokas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6797/2515/files/96177427036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53940391871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8673/1671/files/natipasomenijapuwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/13754438042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/zavasufonebajavodulowat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5282/6777/files/mukoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/auden_poems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/24165951322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4028/4577/files/fusalexudutim.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_off0000807c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807C 5328 bytes
SHA-256: b380e26bfd5c1de61f3d0133994229b44a3204a46442351538df52cff2c20813
font_01_sfnt_off000092b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B9 10468 bytes
SHA-256: 105da510f9493e6377d04acec43c5284b12e74ff367097434c177869d5fb53d9

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