Malicious PDF — malware analysis report

Static analysis result for SHA-256 6388d22a93570dc7…

MALICIOUS

PDF

61.8 KB Created: 2020-07-27 21:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91c79bbda087ec40dbcc3288e0eb9578 SHA-1: a1b80240cdc9dbca7518a57db92543f206ad57a9 SHA-256: 6388d22a93570dc746dbe8a6fc11507565a4b76e7f0a3c8deb5eae9fee32d97d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.ru'. The document body, though heavily obfuscated, appears to be a lure related to a 'Klimapaket' (climate package) from the German government, suggesting a phishing or social engineering attempt. The presence of numerous external PDF links further indicates a link farm strategy, likely to distribute malicious content or redirect users to phishing sites.

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=klimapaket+bundesregierung+2019+pdf In PDF document text
    • http://files.irmoepta.com/uploads/1/3/1/4/131408204/dakidisesowak.pdfIn PDF document text
    • http://files.brushandbranch.co/uploads/1/3/0/7/130740344/2297158.pdfIn PDF document text
    • http://files.lifespacedesigns.com/uploads/1/3/1/1/131163601/124452.pdfIn PDF document text
    • http://files.gemmabellydancer.co.uk/uploads/1/3/1/4/131414134/diruw.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/1/0433/0297/7700/files/85922233987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/gofokoram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/jalowisav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/kaburewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/36379241191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/nodafugawidalazitabuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/pananibufujetoxot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1293/files/dagixefakerazulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/mofoxatesigufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9456/4252/files/59380811449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0762/2817/files/wajepinojokapigonegizame.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF44 5788 bytes
SHA-256: 75d38a677899f68c68e67f5996956f63eb6c8939263dccc93066f5fb4b5e0121
font_01_sfnt_off0000c2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2CD 11692 bytes
SHA-256: c3039519976897823565eddc7b0b54d16207ec8ead2f8c25febfa7f005db00d1

Open this report in the interactive analyzer, or submit your own file for analysis.