Malicious PDF — malware analysis report

Static analysis result for SHA-256 d57aab7d46c683f8…

MALICIOUS

PDF

41.4 KB Created: 2020-08-23 19:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dc31a4fdf4690c2b6fd6269210e2cbe SHA-1: fcbc807e5761c1d895fecf0abba638c6e1a50935 SHA-256: d57aab7d46c683f84040ac60341734750b0fdb2d196771e11af7f4b6cbaa1096
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a worksheet, which is designed to lead users to a series of other PDF files. The primary malicious link is https://ttraff.cc/pify?keyword=bsa+leatherwork+merit+badge+worksheet. While the subsequent Shopify links are benign, the initial redirection indicates a phishing or scam attempt.

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=bsa+leatherwork+merit+badge+worksheet
    • http://gojenur.loranzierogers.com/uploads/1/3/1/8/131871622/pikakatunez_mowaputo_ridotolames.pdf
    • http://xikubamo.shottowerinn.net/uploads/1/3/0/9/130969754/5265215.pdf
    • http://desag.allazoleadership.com/uploads/1/3/1/0/131070374/e2d48d85.pdf
    • https://cdn.shopify.com/s/files/1/0435/9861/0591/files/99307664260.pdf
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/86058787435.pdf
    • https://cdn.shopify.com/s/files/1/0433/4478/9653/files/vobobemoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/3974/2369/files/azhage_azhage_tamil_album_song_video.pdf
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/porojituzotelajozovofu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4769/0145/files/degaguzizafuwaxek.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/statistical_arbitrage_machine_learning.pdf
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/frutas_antioxidantes.pdf
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/bojupekekasuxipofebesafo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/jonizodusakatagasod.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/brookfield_digital_viscometer_model_dv_ii_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/active_learning_exercises_for_research_methods_in_social_sciences.pdf
    • https://cdn.shopify.com/s/files/1/0434/6776/7972/files/84706507055.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_off000063cb.bin
2397575a5ae838053c429d603a34cfa8f393b5d10347a753ff0ff0ea984c2cfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x63CB 5584 bytes
font_01_sfnt_off000076b0.bin
5d2b19a413053561fd36de3af4f798a7245d96b01f6489fd3c46bfa0cdd9ae61
pdf-font-stream PDF embedded font (sfnt) at offset 0x76B0 9908 bytes