Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3b91101ec92c0c7…

MALICIOUS

PDF

42.5 KB Created: 2020-08-23 07:00:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 430f771a21e054fe4f52cf4ebb8751d3 SHA-1: 15435f2e0b8f5da49e8b4d4e9afada6e64489e44 SHA-256: a3b91101ec92c0c736988443bd6529b1bc86fd41ad93b1199d6f8b0e8ea5ee2a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a Hepatitis C treatment guideline. This link, 'https://ttraff.com/pify?keyword=hepatitis+c+genotype+2+treatment+guidelines', leads to known malicious infrastructure. The document also contains a large number of embedded links, many pointing to shopify.com, which is likely part of a link farm to improve SEO for malicious content. No scripts were extracted, but the primary attack vector is the 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.com/pify?keyword=hepatitis+c+genotype+2+treatment+guidelines
    • http://files.lampstandlearningcenter.com/uploads/1/3/2/6/132681482/jomilapuvotutavuw.pdf
    • http://xudola.austindiadelosmuertos.org/uploads/1/3/1/3/131383483/rabiwelemezof_gonodizo_pukalofemodi_xopumazima.pdf
    • http://files.tailoredrides.org/uploads/1/3/1/4/131438844/1720289.pdf
    • https://cdn.shopify.com/s/files/1/0433/3528/6943/files/73591368652.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/7315501991.pdf
    • https://cdn.shopify.com/s/files/1/0428/6359/1583/files/sabomedilutebememawo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/top_books_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/bumafedagedigi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/mefim.pdf
    • https://cdn.shopify.com/s/files/1/0438/5302/1334/files/john_deere_lawn_tractor_parts.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4490/files/reading_comprehension_grade_2.pdf
    • https://cdn.shopify.com/s/files/1/0435/1475/7288/files/payment_request_form_gmu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/behaviorisme_dfinition.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_off000065b2.bin
1f697abbb32788187880fcd1ff0e103cfe1282fca9d9ab22f7be3e996ce270ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65B2 5588 bytes
font_01_sfnt_off0000789d.bin
7c4af093bc98dd3eed0d0a7a898847363b44f9701713e684db8c16e67334d2b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x789D 10584 bytes

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