Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60d7dfae5942921…

MALICIOUS

PDF

46.3 KB Created: 2020-08-06 12:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e5ce10bab997aed9a9474c14fc0dcb8 SHA-1: d4238900401f7e50ca6c98eb23468606ab3b0174 SHA-256: c60d7dfae5942921ebbcf884ec3e9b9b10c9121e5ed878aa9c887323d398b46e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=business+plan+budget+sample+pdf'. This URL is likely used to redirect users to further malicious content. The document also contains a large number of embedded links, many hosted on Shopify, which is flagged as a PDF link farm. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics.

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.ru/pify?keyword=business+plan+budget+sample+pdf
    • http://files.akinipek.info/uploads/1/3/1/3/131380456/rotabajawubuvifo.pdf
    • http://files.patriciakreyes.com/uploads/1/3/1/3/131379266/jomigo.pdf
    • http://files.abclassics.nl/uploads/1/3/2/7/132710780/velasawarenejukemejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9227/1519/files/lozawago.pdf
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/79080954705.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/63438209780.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/botanical_names_of_cereals_and_pulses.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/zonew.pdf
    • https://cdn.shopify.com/s/files/1/0428/2892/3046/files/80098894917.pdf
    • https://cdn.shopify.com/s/files/1/0437/5828/9045/files/adobe_for_mac_catalina.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdf
    • https://cdn.shopify.com/s/files/1/0429/3020/8924/files/33366182027.pdf
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/44370403664.pdf
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/musiwo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/kojij.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000694c.bin
26607091eac9090f111f14885465e2f78b7440c78a861733389434906bfd84b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x694C 5224 bytes
font_01_sfnt_off00007af5.bin
c7f8d75d9a1e18b6df04b4191b5728ad3b6d75189b36f3f07c9f88bacbc0f335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF5 10248 bytes
font_02_sfnt_off00009df6.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DF6 4324 bytes

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