Malicious PDF — malware analysis report

Static analysis result for SHA-256 54197ccc1ec2a619…

MALICIOUS

PDF

44.8 KB Created: 2020-08-23 07:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6dce9a5b700de9f22170932b0d45108 SHA-1: 535bce423fee446058c6494bbde8fe29d430f14c SHA-256: 54197ccc1ec2a6190864d2e03456c2c42725c5b7eb45faa175f423052facd0de
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a critical redirector link pointing to 'https://ttraff.ru/pify?keyword=best+free+chinese+dictionary+android+app'. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware delivery. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of specific execution behaviors.

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.ru/pify?keyword=best+free+chinese+dictionary+android+app In PDF document text
    • http://files.brushandbranch.co/uploads/1/3/0/7/130740344/2297158.pdfIn PDF document text
    • http://wusad.beverlymeola.com/uploads/1/3/1/0/131070767/xikafudomomesow.pdfIn PDF document text
    • http://zuted.bathurst75fc.com.au/uploads/1/3/1/6/131637830/gaminamabineguzi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0496/files/bosazoxasoviweropokom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5576/6942/files/keuntungan_jadi_local_guide_google_maps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2769/files/liviwobutirewerudow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2971/5354/files/america_s_test_kitchen_reviews_springform_pan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/33498561749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46824776831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/87795191363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7914/files/tatowomorekenapatebuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2204/8667/files/96678251943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/zowesoxolinosasixoluku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/way_back_into_love_piano_notes.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6312 5148 bytes
SHA-256: 2259385005c4dea7df0f87f851bfe914defccfea4fe582b61da352cfcc589b43
font_01_sfnt_off00007490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7490 10384 bytes
SHA-256: ac5b207a0a7e3685effadcb8e0303a78395f787636c1b86b53eb514d96a93ddb
font_02_sfnt_off0000981e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x981E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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