Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e278bcd7a367c94…

MALICIOUS

PDF

49.3 KB Created: 2020-08-19 04:22:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dd90c2730cec865f4ac9c20046ec0d3 SHA-1: 1df9ae7286348336463b35d8fde69549b0746f21 SHA-256: 8e278bcd7a367c943e453c79f051ab3c8b34ea2f980f7f5f99e65ca68466705b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'Forza horizon 4 car tuning guide'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages. The presence of a link farm heuristic further supports the malicious intent of distributing links.

Heuristics 3

  • 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.
  • 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=forza+horizon+4+car+tuning+guide
    • http://judup.barcelonacrewacademy.com/uploads/1/3/1/8/131871991/1390835.pdf
    • http://zisovit.gregorytinga.com/uploads/1/3/2/6/132683051/debop.pdf
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/wuzevu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/16427359449.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5646/files/10939559236.pdf
    • https://cdn.shopify.com/s/files/1/0431/3445/1874/files/81325117300.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/64271751075.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1685/files/baaghi_2_movie_songs_video_hd.pdf
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/59850882397.pdf
    • https://cdn.shopify.com/s/files/1/0437/9938/0130/files/zudixoderinazazamavopikil.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/zitenajekemiduzepeliw.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084fc.bin
54515345587b0e29f7a265f9c1fd5f155eadac7eac39528c309848d188dd76ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84FC 5084 bytes
font_01_sfnt_off00009648.bin
48c05ed160b853d5946bb1d0af29b3b3e7850f2068b9c0434a9f1c4ddf297432		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9648 10096 bytes

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