Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e48979fbfd67b21…

MALICIOUS

PDF

56.2 KB Created: 2020-07-31 05:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f6c755f73885737621ebab9f5057485 SHA-1: d3da903285fd11177b05fe71e5f141ead66c6857 SHA-256: 6e48979fbfd67b2174d154d011979ec96cf49bc3f83bf4081b036b50ef0789a1
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). This suggests a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=bardo+thodol+completo+pdf In PDF document text
    • http://files.lindveit.com/uploads/1/3/1/4/131406744/2671369.pdfIn PDF document text
    • http://files.fantasticfrocks.com/uploads/1/3/2/7/132740905/zanebaw.pdfIn PDF document text
    • http://files.downingcommunityadvisors.com/uploads/1/3/1/3/131397971/nibevofifaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/fimabapajejepafudejiliwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7430/3640/files/rorukuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/92422443543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/88883239446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30551251375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93527538138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/nemabisupitet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0363/3051/files/torijenujujalak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/93570831126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/verenojogadinojexedorotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/fobir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51507598499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/dujanivujapub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/40050198188.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://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7435 4900 bytes
SHA-256: 866b2a9193cae5de00beab900f11d4e461286c08934772f7b5944ef35b8c3090
font_01_sfnt_off000084e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E6 11852 bytes
SHA-256: 863dc41a3f31cd8e45c8d6b5a329202f4e3c921affd48cd23369465afd107e20
font_02_sfnt_off00009f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F25 6148 bytes
SHA-256: 0b38f6fd5e0b54bfa22d5adee1cfe00629fe134100fc7cfc1ad14a2ab7974207
font_03_sfnt_off0000af05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF05 10772 bytes
SHA-256: 49e9b1a60498123fd1cfa9af76f7cdcf16c9c42a0185506e4c7cfc688c2d39d3