Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e3a30daeffaec30…

MALICIOUS

PDF

65.1 KB Created: 2020-08-01 09:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b11c70635984ad1b609f9d641440a9ef SHA-1: 4bda82d31ebe3ea0c57eb2c768502f5d54feb16b SHA-256: 2e3a30daeffaec30c7dbfa9cd9d2d81e4fecdb6bfe3ca9897645dbb04f79ccee
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=python+bitwise+and'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains. The ML classifier also strongly flagged this PDF as malicious. The presence of these indicators suggests the document's primary purpose is to lure users to a malicious site, likely for phishing or a scam.

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=python+bitwise+and In PDF document text
    • http://files.cookiesbykristin.com/uploads/1/3/1/4/131453028/1810e9078236569.pdfIn PDF document text
    • http://files.digistitchcustomapparel.net/uploads/1/3/1/3/131398145/1790422.pdfIn PDF document text
    • http://files.updatescentral.com/uploads/1/3/1/3/131384018/fotimiva_nidanu_gibuvidedavade.pdfIn PDF document text
    • http://files.retreat4yourfeet.com/uploads/1/3/0/8/130814877/f4ee4c.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/1/0434/4712/4130/files/78258073717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/52845519122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/87915213015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/speech_bubble_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/2711277316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7091/files/genixujizuwujoliziril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7548/6367/files/nidir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/towanekajaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/47555175523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4037/2896/files/49726662793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/nufuvexusuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/94793785863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libutufisolefod.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68ED 16496 bytes
SHA-256: dd681906fc6d579cd14902fdc46469478c0bc0341db9146bfb4566adf787a3ad
font_01_sfnt_off00009d65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D65 5120 bytes
SHA-256: d1afa99559f5c0db706e36b4cd301a4f65eecc8398fa2bf94fbdd94f72414c50
font_02_sfnt_off0000aee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEE5 15876 bytes
SHA-256: a173f7a30653b0c57ca9d727f9a44ff318a21a68109fc437c4665a92f69f6ea6
font_03_sfnt_off0000e0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A7 16036 bytes
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940