Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4d340fe591e18c0…

MALICIOUS

PDF

42.2 KB Created: 2020-08-03 11:02:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91f37f797891a712ceada73ddd6fe482 SHA-1: f55a2a95db47fce2f2f1c140d965fee65fb8da30 SHA-256: b4d340fe591e18c09768b8bee117a29edc4869e9c88b0dc493533a42b721291f
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, ttraff.com, which is designed to lure users into downloading cracked software. The document body also contains the URL for the malicious redirector, reinforcing the lure. No scripts were extracted from this sample.

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=microsoft+office+2019+crack
    • http://files.mail.rustictreasuresjewellery.com/uploads/1/3/1/8/131856698/1a4035f9e.pdf
    • http://files.dorkingrefugeesupport.org/uploads/1/3/0/7/130775156/pugud.pdf
    • http://files.rickysvanity.com/uploads/1/3/1/1/131164077/aede646d6.pdf
    • https://cdn.shopify.com/s/files/1/0436/3865/3081/files/pidanalixokepazow.pdf
    • https://cdn.shopify.com/s/files/1/0432/2266/3325/files/64918143756.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/dozetanogavokafadejuku.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/6221664425.pdf
    • https://cdn.shopify.com/s/files/1/0434/8366/0441/files/dodiwefatora.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/77908775622.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/guwosozase.pdf
    • https://cdn.shopify.com/s/files/1/0433/7329/7814/files/kepopepafumibogixifof.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/risuveduketikarofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1722/3840/files/avengers_age_of_ultron_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/finuvativepojinevagojoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/sajesuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/7172656535.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_off000063d5.bin
7ae87fa92f2324d180fb7bf88678ab5450ff5c1b1142531703e65def7b0012a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 5396 bytes
font_01_sfnt_off0000764f.bin
2419d74a382c566c6482f12ef20b15c07684df83de46cf3dac09c2eb9f7acdc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x764F 11112 bytes

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