Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b12842ea7e0235…

MALICIOUS

PDF

37.7 KB Created: 2020-08-02 10:07:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1e56cb6402c9f32d11f0697fdccc99d SHA-1: f92daea862e1bffd34b0e0b96fef60ecedcfb824 SHA-256: f2b12842ea7e0235938ce0b5882e4645a9156963708bd95499597ea2aa38ffb3
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate documents but likely serving as a link farm. One critical heuristic identified a direct link to a known malicious redirector, ttraff.com, which is presented with a deceptive keyword. This suggests the document's primary purpose is to redirect users to malicious infrastructure, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=battleship+2012+online
    • http://files.miriad-tech.com/uploads/1/3/1/8/131856646/nebumonagas.pdf
    • http://files.creativemotiononline.com/uploads/1/3/1/3/131379792/waxamuwigi.pdf
    • http://files.bingocompany.net/uploads/1/3/1/3/131379612/d2857f2095895b.pdf
    • http://files.michael-sloan-equalizer.com/uploads/1/3/1/3/131379525/1411a5ef02ac.pdf
    • http://files.proactivepartnersllc.com/uploads/1/3/1/4/131407492/3264311.pdf
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/weber_grill_repairs.pdf
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/norristown_dmv_hours.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87913440599.pdf
    • https://cdn.shopify.com/s/files/1/0438/2441/4882/files/nsync_no_strings_attached_songs.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/xudetadepururafagiliwodi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3375/4773/files/21317952724.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/65379091790.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/xevigufefowulabavafepe.pdf
    • https://cdn.shopify.com/s/files/1/0448/0948/6498/files/act_ffxiv_plugins.pdf
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/39564981652.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/xafisinatitun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/livoxigugefeguvon.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_off0000537c.bin
717bbfdb4a2a3ec3d5516d50e824b6586fd59bc0ef38047177e4c3bb55d49203
pdf-font-stream PDF embedded font (sfnt) at offset 0x537C 5188 bytes
font_01_sfnt_off00006524.bin
a6cdc8b65172f989ab6a30a9b3b8ea66db6fe1361f77c7bdbccdbc25122fc350
pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 10960 bytes