Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a95ab911ca9922d…

MALICIOUS

PDF

50.3 KB Created: 2020-08-11 18:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 062967ad8cc4e284c30851b468840f8a SHA-1: a0e9aca22d8fcf4102b55a81c8f19fe1b48e6026 SHA-256: 1a95ab911ca9922d241b9c891ccd9f7eaa029e520956587bc4a7cdab04ca3898
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', identified as a malicious redirector. This URL is presented within the document body and is associated with a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation to drive traffic to the malicious redirector. The overall goal appears to be to trick users into clicking the malicious link under the guise of providing useful information.

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=aptitude+shortcut+tricks+pdf+download In PDF document text
    • http://files.undertheskynews.org/uploads/1/3/1/8/131856852/fagome.pdfIn PDF document text
    • http://files.alissabethphoto.com/uploads/1/3/0/9/130969247/e9aab9e.pdfIn PDF document text
    • http://files.fwmihk.org/uploads/1/3/2/3/132302993/muguju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1149/6347/files/42244931130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1219/2413/files/mepuwazom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3669/6995/files/25124921711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6768/6556/files/35757329303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/45463197179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/xiponubivonekor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0812/2280/files/5683339872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9167/9639/files/dajenikulaxejune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2024/7462/files/17763109419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1565/9942/files/sejosiwamazejimaniwudari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/vopelule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4608/2472/files/47425274457.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6062 5388 bytes
SHA-256: 5b231651dba9eaa0dc74d623479817ff8a868209e11f34b8c085c4d1a94a18dc
font_01_sfnt_off000072ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BA 2116 bytes
SHA-256: 33d80b5e357abfa3ea91f5eff18928953f8e36d8e9a7aea158c838e8ae756dd9
font_02_sfnt_off00007c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C84 10108 bytes
SHA-256: 61bb05fa349f221b30327fea8874d33b6339fa17a1d10ad6ff3952ec49bd3cac
font_03_sfnt_off00009f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F21 8024 bytes
SHA-256: d73df57d46cacd7bc4e90a22257ceaff8e81036fbe0a6e27afc82341d9ddb325