Malicious PDF — malware analysis report

Static analysis result for SHA-256 067222c7513b91c6…

MALICIOUS

PDF

41.4 KB Created: 2020-08-13 16:53:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ac5458a5edc8e05f391ec7e5473f0bb SHA-1: 29856b4954e38195318406e0db473a015e4bcfba SHA-256: 067222c7513b91c6604054d5fae3e4260a9e0c71ff7646ce77bdca43d91b1fed
154 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, including one pointing to a known malicious redirector at ttraff.com. The document body, though malformed, contains text related to a job description and the URL itself, suggesting a lure to trick users into clicking malicious links. The presence of a link farm further indicates a malicious intent to distribute harmful content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/wb?keyword=demi%20chef%20de%20partie%20job%20description%20pdf
    • http://sigox.isakpronepal.org/uploads/1/3/1/0/131070805/xuxodi-sawogemig.pdf
    • http://files.apollovacations.com/uploads/1/3/1/4/131406202/5454f78bcd2.pdf
    • http://ketiw.magicfitnessforyou.com/uploads/1/3/0/8/130814933/jusisadevilupox-zerozenizi-lixav-kiworijovu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/powomaliguge.pdf
    • https://cdn.shopify.com/s/files/1/0434/2779/1009/files/95777368153.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/mikabedojamapadojiture.pdf
    • https://cdn.shopify.com/s/files/1/0432/3531/1784/files/oxford_discover_2_grammar_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/0980/9318/files/grand_theft_auto_san_andreas_ps2_iso.pdf
    • https://cdn.shopify.com/s/files/1/0437/2171/9959/files/bacterial_gastroenteritis_symptoms.pdf
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/sanpete_county_booking.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/gujarati_matrimonial_biodata_format.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3330/files/71065385227.pdf
    • https://cdn.shopify.com/s/files/1/0439/1727/9400/files/52979317298.pdf
    • https://cdn.shopify.com/s/files/1/0432/4563/3691/files/69206007650.pdf
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/7411405196.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061ae.bin
3200ef4f31d9096370bd32c38047cc85b6b3f03d02e53eca7764efd1cd207b1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AE 5576 bytes
font_01_sfnt_off00007482.bin
f7cf3ba49fcc241744f4f33dfcb4b6678ea8ce24170ce8ae0b9110a783b3b88b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7482 10552 bytes

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