Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dcbee803aafc75a…

MALICIOUS

PDF

56.8 KB Created: 2020-08-17 02:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92f35c31ae142cf5584956f6fee8204d SHA-1: 4d4f49a896ba390a0d0de9d74e954c2c087472fb SHA-256: 2dcbee803aafc75a59e791edfdf495ec5bf8c95cb08800b27f647f6cdde40bf5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented to the user with the lure 'Asphalt 6 apk apkpure'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting. No scripts were extracted from this sample.

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/pify?keyword=asphalt+6+apk+apkpure In PDF document text
    • http://files.careyblankenship.com/uploads/1/3/1/3/131380616/fepina-zipebituseve-navibe.pdfIn PDF document text
    • http://files.robbiehamblin.com/uploads/1/3/0/7/130739789/1156947.pdfIn PDF document text
    • http://files.studiothinking.org/uploads/1/3/2/7/132710627/cfaf5.pdfIn PDF document text
    • http://kajusolu.aristoclad.com/uploads/1/3/0/7/130775735/nireriguk-ropefibe-pixoxuduje.pdfIn PDF document text
    • http://disug.kootenaywinecrafters.com/uploads/1/3/1/3/131398101/nemodarit_mujobevijuposo_tigeva_vokepiboduju.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/1/0437/4613/2129/files/74198287545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/voxadedigelobodomud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/90841610949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/78711426759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40545468116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/zogetapup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9995/8939/files/92686109375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/godogufub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/atmosfera_fizikasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/55094289515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/caritas_in_veritate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6815/2216/files/15885417108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2144/2965/files/54388893409.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D08 5116 bytes
SHA-256: 93bb8b3d78576828beb9048d3fd899743f7c12533187924eed7eb52784a6bfef
font_01_sfnt_off00007e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E58 7536 bytes
SHA-256: 086e8440247ee638e94293b5a52fca9bbcf78430dd06219428f3df6240d2071f
font_02_sfnt_off000097b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B8 11756 bytes
SHA-256: da9b2f221c994f4cf89e7ca484d024b190f49642ea958996b3e00a3b16aee89d
font_03_sfnt_off0000be92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE92 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15