Malicious PDF — malware analysis report

Static analysis result for SHA-256 580c61d6b12c52bc…

MALICIOUS

PDF

43.1 KB Created: 2020-08-20 06:16:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7cddce940881ed66273b533bfae34ee SHA-1: b17f4fa9aa0eebaa863053d7f270b4ee3e32fdb2 SHA-256: 580c61d6b12c52bc7e9469feb981df507b1922b67a9dc73cd829b0a986d34e7a
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Thyroiditis treatment guidelines' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a malicious redirector and the link farm technique indicate a probable attempt to distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=thyroiditis+treatment+guidelines
    • http://resaxogo.poolprologan.com/uploads/1/3/0/7/130739693/5e4c09c20.pdf
    • http://jaxuxode.yournaturalhairspot.com/uploads/1/3/0/7/130776483/kozitofonumuzarid.pdf
    • http://files.perfect-art-match.com/uploads/1/3/0/8/130813364/zabobedu.pdf
    • http://menavu.rawmilkraised.com/uploads/1/3/1/4/131407089/327a4d41.pdf
    • http://files.devabeauty.net/uploads/1/3/1/3/131379748/d97f58d.pdf
    • https://cdn.shopify.com/s/files/1/0428/0441/2583/files/dojofadapojazufen.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1778/files/tukopuxuna.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/mofunoni.pdf
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/lg_universal_remote_codes.pdf
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/ranoxesij.pdf
    • https://cdn.shopify.com/s/files/1/0438/9116/3291/files/69263889869.pdf
    • https://cdn.shopify.com/s/files/1/0435/1551/0952/files/dukudone.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/chirutha_telugu_songs_free_320kbps.pdf
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/68791574687.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/94708892515.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_off00006b5a.bin
9e443593053d575105ace06e4e77df4965e77c97201ca2acf43a1fb4013a2604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5A 5288 bytes
font_01_sfnt_off00007d3e.bin
9ad109221a1656a6cd6a4dc7a1a40b72fc0ef14615fdcdd8578f77932b0f87f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3E 10128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.