Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc7823c00b575422…

MALICIOUS

PDF

41.9 KB Created: 2020-08-28 08:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d67823f97b0792ae4ee0c202d8e6bc2 SHA-1: 7b5ec85b7cfa8cc7d77387c0cd63db7fb4c0eec9 SHA-256: fc7823c00b5754223a37c4b6ffa8ec0e87bdeb353ac3c009e93ae8047fd22265
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=invader+zim+species'. This indicates an attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or content-luring tactic. The presence of a malicious redirector URL strongly suggests a phishing or malware distribution attempt.

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.cc/pify?keyword=invader+zim+species
    • http://fudidax.janetdowsarchitect.com/uploads/1/3/0/9/130969634/9284652.pdf
    • http://files.catcaricature.studio/uploads/1/3/1/3/131397950/jowededevamajen-jafugejejomisi.pdf
    • http://files.purelifealliance.org/uploads/1/3/1/4/131483305/ratobokebom_gejulafigewape_sozume_pebubumexa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2661/1356/files/soul_calibur_voldo_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/3890/7288/files/gupupajedurut.pdf
    • https://cdn.shopify.com/s/files/1/0435/8127/6319/files/alice_in_wonderland_ebook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/6254439730.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/website_design_templates.pdf
    • https://cdn.shopify.com/s/files/1/0431/7786/9476/files/house_of_night_betrayed.pdf
    • https://cdn.shopify.com/s/files/1/0434/9332/7008/files/74238249241.pdf
    • https://cdn.shopify.com/s/files/1/0434/6413/0726/files/51095719770.pdf
    • https://cdn.shopify.com/s/files/1/0458/5973/3657/files/oxford_dictionary_english_to_malay_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/14395413143.pdf
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/english_to_german_basic_words.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_off00006759.bin
c4bf901f772fb2583d80ebf842086afe0dac301b2d54b22d53668dc86d788607		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6759 5232 bytes
font_01_sfnt_off00007915.bin
e53c53ffe767faaad17ac489714dbb7dd415404fd395cf5b11bc164588244b07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7915 9992 bytes

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