Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2aa7425e63bae8…

MALICIOUS

PDF

63.6 KB Created: 2020-08-14 05:53:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a5e2bbdeea6a6904fb7535ce1b32edf SHA-1: b687dcf1739619139e55b5cd9f025aab18b86e06 SHA-256: 5f2aa7425e63bae833e0d64fc2bed57e4cbce6026cce2e1a2337e8c3d01ccced
234 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and potentially malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The presence of a link to 'ttraff.cc' suggests a phishing or malware distribution campaign. No scripts were extracted, but the document's structure and embedded links strongly suggest an attempt to direct users to malicious content.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=boolean+rails+simple_form In PDF document text
    • http://zuwanogib.abundantblessingweddingofficiant.com/uploads/1/3/0/8/130813094/lozapetupixed.pdfIn PDF document text
    • http://larav.lagarrigue.co.uk/uploads/1/3/1/8/131856462/4fb1316410b64b.pdfIn PDF document text
    • http://files.musicmastertraining.com/uploads/1/3/2/6/132696351/gelokopotajowasajun.pdfIn PDF document text
    • http://files.peterthomsonart.com/uploads/1/3/0/9/130969944/1737255.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/1/0434/5013/8784/files/zopinovipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/a_dozen_a_day_mini_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1829/5195/files/26766134030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/40984996952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/773_951_7670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5396/3678/files/dextrotartarato_de_brimonidina_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/jedijeguxuvubigis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/wakekinawakigiromube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/pudatujonaxefumuvekisixev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/56407389657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4935/files/repugizumajefi.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4A 17080 bytes
SHA-256: 2a179f61ee1ae8eeb4cd0fb94db73a30be44a422ba5a7369c31c68ff17f99808
font_01_sfnt_off0000a191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA191 5128 bytes
SHA-256: aa7ac975c1ceefaff9575c3476770f318fd34f57c5450695db81c99cc178485c
font_02_sfnt_off0000b2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E8 1744 bytes
SHA-256: 50b09f5083493146c63c5569c22eb97fe355562360ca54709905900640d5138c
font_03_sfnt_off0000bb86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB86 16416 bytes
SHA-256: d9155a35d7b9e2825ae9128a0bbe82e3ccde48204e94a7ef708850417a766a21