Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9277924390c2eef…

MALICIOUS

PDF

41.2 KB Created: 2020-08-09 00:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fc26a602dde536fd57863d8fc5930ce SHA-1: 0ace2ba373b1fa673ba2e192b0862573c9d36717 SHA-256: d9277924390c2eef568f826d00d8ee24406e52644643145ecd4dde662e7364cc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, indicating a phishing or malicious redirection attempt. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains a reference to the same URL, reinforcing the malicious intent. No scripts were extracted, but the sheer volume of outbound links suggests a campaign to drive traffic to potentially harmful sites.

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=cash+budget+meaning+pdf
    • http://wuvajo.sejenkins.com/uploads/1/3/0/7/130739678/7549796.pdf
    • http://files.fisherphotoanddesign.com/uploads/1/3/0/8/130813524/logaxoluja.pdf
    • http://files.holmeschan.com/uploads/1/3/1/4/131406403/9307825.pdf
    • https://cdn.shopify.com/s/files/1/0428/3269/1363/files/16141290105.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/vixurifus.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/93409307757.pdf
    • https://cdn.shopify.com/s/files/1/0436/3390/1726/files/the_creative_teaching_and_learning_resource_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/0627/1394/files/lefiwo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/goguzevadabiko.pdf
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/folorexatev.pdf
    • https://cdn.shopify.com/s/files/1/0431/2432/6566/files/16469538622.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/social_psychology_kassin_9th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/21861471001.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/5237778589.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7085/files/magic_chef_wine_fridge.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.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_off000063ea.bin
c093229be6ef5678edb86b028840154b4c0fcfc47d481a48860a321e230b930c
pdf-font-stream PDF embedded font (sfnt) at offset 0x63EA 5372 bytes
font_01_sfnt_off00007605.bin
ec458dc17f17e381960ba3186a5ed2e1930da776f57f7f9d578097c2d7a76923
pdf-font-stream PDF embedded font (sfnt) at offset 0x7605 9952 bytes