Malicious PDF — malware analysis report

Static analysis result for SHA-256 2924075911dfa9b6…

MALICIOUS

PDF

56.7 KB Created: 2020-08-06 20:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02db57b17de9d921e370df5d1ec3eddf SHA-1: 2c2493771210c30ff5f6890a1c6c9c273d264353 SHA-256: 2924075911dfa9b663d7c1ea94b23a7ed9d20ad0148aece0aa0913ac31d81f59
202 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=ancient+history+by+rs+sharma+old+ncert+pdf' which is flagged as a malicious redirector. This suggests the document is designed to trick users into visiting malicious websites under the guise of providing a PDF document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ancient+history+by+rs+sharma+old+ncert+pdf In PDF document text
    • http://files.wcsinstruction.net/uploads/1/3/1/4/131453276/jirapeluguteta-rugopexadewelob-lufepew.pdfIn PDF document text
    • http://files.mralder.com/uploads/1/3/0/9/130969855/sideganojufaze_xukitusas_faxabuxovi.pdfIn PDF document text
    • http://files.yangmian.net/uploads/1/3/1/4/131453615/dedix.pdfIn PDF document text
    • http://files.silverlake-designs.com/uploads/1/3/1/4/131437307/falopexutow.pdfIn PDF document text
    • http://files.lwwmusic.org/uploads/1/3/2/7/132712093/b424518f238.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/1/0433/1618/3205/files/soduxeveto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1245/files/12610127667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/81295912327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0291/2168/files/jenilojuminafolugatavomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/81248207214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9952/1178/files/66213333539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/budekidif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/behavioral_approach_in_international_relations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/wesedufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/system_of_a_down_chop_suey_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/32693089247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81EE 5628 bytes
SHA-256: c5f941a64a9421f3d1ae889c9506f04b8fbd73f400fb040da6788ab42b9c7640
font_01_sfnt_off000094ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94EC 13388 bytes
SHA-256: 77ada5a0460e367f47279f746dda3af677f89b52c34e8bf1036eacd72e012262
font_02_sfnt_off0000bfb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB4 16344 bytes
SHA-256: 7e0863d6dcdfe3ce59f67395a06e5e8634226e44f713773c85e494ff6d119ee1