Malicious PDF — malware analysis report

Static analysis result for SHA-256 a027bc401c20b7b2…

MALICIOUS

PDF

61.4 KB Created: 2020-08-12 09:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4042a687a9523c2911b5fcc6c7d5ff5c SHA-1: 21db310d5b23301f2e94e9e670c0d7f4d79e6df0 SHA-256: a027bc401c20b7b290b677ee4bd33d0eac72750d99d1a10ca5613e4c26678640
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=yasin+suresi+pdf+diyanet. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDF files, suggesting a link farm designed to obscure the ultimate malicious destination. The primary intent appears to be redirecting users to malicious content via the ttraff.com domain.

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/pify?keyword=yasin+suresi+pdf+diyanet In PDF document text
    • http://files.la-iphonerepair.com/uploads/1/3/1/3/131382274/9721243.pdfIn PDF document text
    • http://tolodak.portmelbournenetball.com/uploads/1/3/1/3/131380213/nowafabi_rukuwowogapebak.pdfIn PDF document text
    • http://tatala.leisuretravelsrilanka.com/uploads/1/3/1/6/131606289/7ac4c52b.pdfIn PDF document text
    • http://files.funactingstudios.com/uploads/1/3/2/6/132695325/1809200.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/1/0429/2011/6387/files/ragatorirejimiwesopevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/94170380923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/koronewisir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/2371737489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/don_quijote_avellaneda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/wibuzuvagevujel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/rabenitiranodotudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/37176864650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6677/files/wokesemetakusasul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/54472411827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/22811036699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/fosavasirofavatigibojil.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000b7d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB7D6 25140 bytes
SHA-256: a95ce9b446efac1659698027d328d77e0c2f53bac29bb67702845a4c5eff9bab
font_00_sfnt_off0000797b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797B 5064 bytes
SHA-256: 617316a8588157a6abd13e44dce8696ba878aedaa713e0ec8ab24beccac9c3a4
font_01_sfnt_off00008ac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC7 15236 bytes
SHA-256: 932b3d5432985a386602d717ef55ec1b6941c192793e234dadbf3fd662c22663