Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e56d41346968199…

MALICIOUS

PDF

50.6 KB Created: 2020-08-22 18:20:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba9d4988b4d6b10fe88692b5fe34b301 SHA-1: a3b93a0515c2f369851453081f7f61902a23f86f SHA-256: 7e56d41346968199d9876accc7f24f67785ff7f1a852e3114f7e8680dad77b53
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure and is part of a link farm, likely for SEO manipulation to lure victims. The embedded URLs, particularly the one pointing to 'ttraff.ru', are flagged as malicious redirectors. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content, potentially for phishing or malware delivery.

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=austin+mahone+what+about+love+video In PDF document text
    • http://files.lonniefeather.com/uploads/1/3/1/3/131382243/8334960.pdfIn PDF document text
    • http://dapuv.blendedscience.net/uploads/1/3/0/7/130776644/wudaru_vepexojuzod_sajamevukotal.pdfIn PDF document text
    • http://fijexivel.theinfiltratedeye.com/uploads/1/3/0/7/130776445/pojonelijegebub.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/1/0430/9529/4105/files/what_is_a_pci_device.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/gaketujegez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0429/7375/files/pamumefimeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/33899271041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7985/files/drayton_digistat_3rf_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6975/7850/files/dudufupimuzujekukolok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/dell_r740_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/16219475651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0181/files/vupadetisefiboziluneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3080/4637/files/turaforetesubiliw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4563/3691/files/65525915923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/32030897764.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
🗂 Part of campaign: blendedscience.net 5 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007cb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB4 5248 bytes
SHA-256: a2b1590dc0d78e908e454be8853830042b3d7c3de8ee24a7434b6b8588160046
font_01_sfnt_off00008e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E6F 16116 bytes
SHA-256: 0800836f6cfa7db585cd47a37bc1b96c891df059485905856755e406191eb953