Malicious PDF — malware analysis report

Static analysis result for SHA-256 893335003f3a47a3…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 08:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72927947f9dd05d70a3c94a9ddeadf1b SHA-1: 7946d4a39ab0c55eaa3d7148b067c43c3ac4846d SHA-256: 893335003f3a47a3e8f82bb0b11e306d98a1faa74147e79eaba22b2e36923068
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=avatharam+song+lyrics+free'. This URL is presented within the document body, disguised as a link to song lyrics, indicating a social engineering lure. The document also contains a PDF link farm heuristic, suggesting an attempt to manipulate search engine results or distribute content widely. While no scripts were extracted, the presence of a malicious redirector and the document's structure strongly suggest 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=avatharam+song+lyrics+free
    • http://files.kidslearnliberty.com/uploads/1/3/0/8/130814687/767048.pdf
    • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/fubidoxuxawoxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97697777452.pdf
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/popujizozimubefipido.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/wukelapigodeza.pdf
    • https://cdn.shopify.com/s/files/1/0434/0409/9740/files/order_perciformes.pdf
    • https://cdn.shopify.com/s/files/1/0432/2564/5211/files/25318099103.pdf
    • https://cdn.shopify.com/s/files/1/0431/8914/1664/files/rsv_bible_catholic_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/zaberu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4562/files/60356496235.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/food_defense_risk_assessment_template.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_off00005adb.bin
b208bd359ae9931c1dbe6c00db23a8534a4fd72a214c4bf6001ef939ebf8976f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADB 5444 bytes
font_01_sfnt_off00006d4b.bin
d87a7018ac6776d5855e9fabb5c16a38bfa6df50cb881d39d8fb13a1b5d2e66c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4B 10136 bytes

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