Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d191d4515ad627…

MALICIOUS

PDF

54.2 KB Created: 2020-07-27 20:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c72ea1f00413c7c08ca6c9437380ac7 SHA-1: 0926bde125509783f1e09483a60f1d08f09b2379 SHA-256: e6d191d4515ad627acebeb4c3c524a125266cf39ec7f62a4dd5930858ba5fbc9
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one pointing to a known malicious redirector at 'ttraff.com'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of external links, suggesting an attempt to manipulate search results or distribute content across many sites. The document body, though heavily obfuscated, contains text related to 'Deus ex mankind divided side quest guide', likely a lure.

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=deus+ex+mankind+divided+side+quest+guide In PDF document text
    • http://files.autheatrewing.com/uploads/1/3/1/8/131871729/9499305.pdfIn PDF document text
    • http://files.marrakechguidedtours.com/uploads/1/3/0/7/130739947/nitavipij_kajutirudo_gimofe_duwez.pdfIn PDF document text
    • http://files.rentatent-sw.co.uk/uploads/1/3/0/7/130739398/1925014.pdfIn PDF document text
    • http://files.harrisburghigh.org/uploads/1/3/1/3/131379371/d7ff44.pdfIn PDF document text
    • http://files.naturalfoodcoloring.com/uploads/1/3/2/7/132741486/3878164.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/1/0433/7840/9639/files/nuluzemub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/vupibegodimuguwofowos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1646/2229/files/94560973915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9613/6097/files/73519049219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1312/7835/files/bavuwoguzilezosepupuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/dazumedejoniwaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3051/8682/files/saginutekovipirofinixili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/jisuzomix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/bizesuvotom.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E6 5104 bytes
SHA-256: 556431532388e71b62f7e73ece8b7825361c9fc61f15a68cc5603270487447ab
font_01_sfnt_off0000a82f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA82F 10328 bytes
SHA-256: 84dfa73b57a22198c359e4e336645567075424db19a72baa4e9866a181995545