Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5edfdc9c60ac225…

MALICIOUS

PDF

52.8 KB Created: 2020-08-11 14:29:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f52f5a0e88dcc37f99be07b046906e47 SHA-1: 8b48776f53b40fccdd11f0605ed8adad2b4651d7 SHA-256: f5edfdc9c60ac225b6db730e7370a6671102dce58e6b71525265e77c6eecee31
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.ru/pify?keyword=b.+com+2nd+year+all+books+pdf, which likely leads to further malicious content. The document body also contains a call-to-action phrase, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.ru/pify?keyword=b.+com+2nd+year+all+books+pdf In PDF document text
    • http://files.windsweptpoodles.com/uploads/1/3/0/8/130874213/4441498.pdfIn PDF document text
    • http://files.wiseschoolofmusic.com/uploads/1/3/1/6/131636651/samonowowomori.pdfIn PDF document text
    • http://files.nigella--sativa.com/uploads/1/3/0/9/130969151/b5008c210fa19bb.pdfIn PDF document text
    • http://files.poehaku.com/uploads/1/3/1/6/131607239/ab7f23f.pdfIn PDF document text
    • http://files.taylormadecafe.com/uploads/1/3/1/4/131407565/jumarozu_kiziros_zolewekirubof_kizemorivav.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/1/0432/0657/4238/files/lurizuzetujewemikerifib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/children_s_bedtime_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6567/0806/files/81962824445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8387/3942/files/install_cuda_10._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9911/1070/files/75769674236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/96546550557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/felofamujowekovulatot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8029/2254/files/aws_summit_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/bhagavath_geetha_malayalam.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000609c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 5820 bytes
SHA-256: 5ce50974f2baae9b723deb08829a3afed213235fd08d6bc9371908b28e3686ef
font_01_sfnt_off00007451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7451 2320 bytes
SHA-256: 7bb91423d63eb6bd7c2657278979848d60b7d38679106ec23dbd755ba6ab3d32
font_02_sfnt_off00007ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA0 9980 bytes
SHA-256: a6de01b55654f73d50cfd190ea508663cf932232d3dccfd4861b2bd56089d909
font_03_sfnt_off0000a116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA116 16224 bytes
SHA-256: 4362e686776cae9b5e877a8e5de4a1ff5ae9966626bcf1046762b8e3a01bbea2
font_04_sfnt_off0000b69f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB69F 3696 bytes
SHA-256: 9bb21aa1b44f9bc5b781b6eabe6fb92a260aedf4bc578533986ab122167cdeb6