Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f295169fdb8d5d…

MALICIOUS

PDF

66.0 KB Created: 2020-08-31 19:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b7c9f9bc262acfc69682dfdb22fe014 SHA-1: 16fbb7914c505a3bc2c2592c64e76bb13043fa23 SHA-256: 08f295169fdb8d5dd19d2a84dc303f98156aca56c454d8bb6e928a355c0cd640
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure related to 'map vs foreach performance javascript'. The presence of a large number of links suggests an attempt to create a link farm or phish users with seemingly legitimate but ultimately malicious content.

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.com/wix?keyword=map+vs+foreach+performance+javascript In 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/1/0438/3404/8669/files/a_weekend_in_the_country_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5989/4689/files/bezunut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7983/5547/files/ppsspp_games_for_android_dragon_ball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/52307809092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3140/3423/files/nukaxemidafavupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4373/4172/files/unable_to_update_the_minecraft_runtime_environment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38692385895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1341/3791/files/29453580599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0957/1990/files/tilusifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/sivufagudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/marc_mezvinsky_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8085/0335/files/carpal_tunnel_syndrome_patient.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7368/3112/files/bagels_and_beans_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5126/0823/files/gomamikixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wijabogose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/19737126639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/midland_xtra_talk_manual.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_off0000a110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA110 5364 bytes
SHA-256: 9d2ce943b253017d3522d4a1610bbce0e0d9bfdcdfdfc4333df753ad7f928608
font_01_sfnt_off0000b336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB336 3120 bytes
SHA-256: 2d1c02d7faeb7dad5af5d103f135926a0d4fd4e69f3a7da8959d46cf8e88466d
font_02_sfnt_off0000bfb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB9 11000 bytes
SHA-256: a4e2cc4b2989ee01cbe934d43f565ad25f6281e8d442c505d2430048639aece9
font_03_sfnt_off0000e573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE573 16076 bytes
SHA-256: 20dc835fdb26e5c8b2bf371a74de3f1f2251d0d540cd54084ecb3d27d8cc4587