Malicious PDF — malware analysis report

Static analysis result for SHA-256 867753fa8161c633…

MALICIOUS

PDF

61.4 KB Created: 2020-08-21 19:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81ffe9671879d37fa87b36f7cb08f88d SHA-1: 915ea345dc428f85d4efaf3fcae790ba9a313690 SHA-256: 867753fa8161c63357c57dc555ff384f1e44ed4fc6ba29942750a38bbf1e7ab5
202 Risk Score

Malware Insights

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

The PDF contains a lure for 'Amar ujala epaper pdf' and a prominent link to a redirector URL, ttraff.com, which is flagged as malicious. The document also contains a large number of links to Shopify domains, likely part of an SEO link farm to obscure the malicious redirector. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=amar+ujala+epaper++pdf In PDF document text
    • http://files.hairofthedog.shop/uploads/1/3/1/6/131636689/vafeneweb_kokinunefu_labunijagadejof.pdfIn PDF document text
    • http://files.tnlsfranklin.com/uploads/1/3/0/9/130969148/6434410.pdfIn PDF document text
    • http://sikog.churchesofchrist.com/uploads/1/3/0/8/130874431/tuxozib_lenezeterawijak_munabuvo.pdfIn PDF document text
    • http://files.healthyhomespestcontrol.net/uploads/1/3/1/1/131163683/2816201.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/belageddu_yara_mukava_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9943/7721/files/simcity_cheat_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/auditor_s_report_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/nirixavupitegidume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/68271768216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/kenmore_110_washer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wakudegebemufajetexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8572/3816/files/41269075238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2891/files/kokeromiviladegesude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9047/files/edhesive_assignment_5_array_statistics_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vopaxopoguzadexi.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7633 5076 bytes
SHA-256: 59250b8d1b9710249c242796bc444c40d4bd51f4b0274e8ef38d7706ea672972
font_01_sfnt_off0000875d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875D 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off000092c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C1 10288 bytes
SHA-256: 1c044c7ad7aa4d96f6d8cfd968e9d7b935f7089baadcf233849add8501b39f3d
font_03_sfnt_off0000b621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB621 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
font_04_sfnt_off0000cb74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB74 7720 bytes
SHA-256: d740d50402d8e1398ba1f706a77069b305ebce266ba7260e2392e691802fc6c6