Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f257032b1f44dee…

MALICIOUS

PDF

45.2 KB Created: 2020-08-10 12:14:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4be9e80084a33384413c851f54fb3db7 SHA-1: 47d1bda0f493345d390a6b10fe59e7504d8ba234 SHA-256: 1f257032b1f44deec4367c55160f8a310c22a90e717836ac5a6afe8f41655d9a
120 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link disguised as 'logic design interview questions and answers pdf'. This link leads to a link farm hosted on Shopify, which in turn points to numerous other PDF files. The primary malicious action is the redirection to potentially harmful content via the initial malicious URL.

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=logic+design+interview+questions+and+answers+pdf
    • http://files.whistlingfrogresort.com/uploads/1/3/2/6/132681002/masaberilanimubaloji.pdf
    • http://files.cleanwaterforlavallee.org/uploads/1/3/0/7/130739169/remugegi.pdf
    • http://modeta.neckbox.com/uploads/1/3/1/4/131409090/c60f5ee.pdf
    • http://files.mountaindreamer.net/uploads/1/3/1/3/131384663/5666146.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5030/files/70457605041.pdf
    • https://cdn.shopify.com/s/files/1/0435/8370/1155/files/7282325563.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/15789343469.pdf
    • https://cdn.shopify.com/s/files/1/0431/0433/8077/files/91774805601.pdf
    • https://cdn.shopify.com/s/files/1/0448/8983/3639/files/social_networking_sites.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/autodesk_revit_tutorials_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/16949129381.pdf
    • https://cdn.shopify.com/s/files/1/0432/3488/5789/files/75162626910.pdf
    • https://cdn.shopify.com/s/files/1/0438/2500/4706/files/belanjawan_2020_malaysia.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/99875794925.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_off000072c6.bin
bf1904600466ef5f15c2891b9ba19fd2eaaed700bdf5ad33ca25f2500c78b027		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C6 5508 bytes
font_01_sfnt_off000085ab.bin
79ef2dc0d9677db18fa3ae3b4d288897464f067de12e31a0d90613ac7b4b6074		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85AB 10008 bytes

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