Malicious PDF — malware analysis report

Static analysis result for SHA-256 15ec25bf572b08b0…

MALICIOUS

PDF

47.5 KB Created: 2020-08-10 21:36:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58b3601bde2b8ad1e4ac14b191c0eea7 SHA-1: df5e1067dc2b5666b550f76d0ff4d4896c19c55b SHA-256: 15ec25bf572b08b0418c0773c83b70a35f37c33d1bddf7040553799e4e21fe38
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external PDF files, masquerading as a manual download. One of the embedded links, https://ttraff.ru/pify?keyword=canon+eos+7d+mark+ii+manual+pdf+dansk, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document likely serves as a lure to redirect users to malicious infrastructure, potentially for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=canon+eos+7d+mark+ii+manual+pdf+dansk
    • http://files.weplaysotheycan.com/uploads/1/3/1/4/131453170/wapapasi-naberewixiv-sasemizalomagid-kufidug.pdf
    • http://files.traviskendrick.com/uploads/1/3/1/3/131380591/buziralesutira.pdf
    • http://files.tasteandseebakery.org/uploads/1/3/1/4/131438079/0ee4594994754.pdf
    • http://mubakiti.laracuisine.com/uploads/1/3/1/3/131379578/xisasegulapizim_zabunoso.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/79293235539.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8210/files/powaregiboni.pdf
    • https://cdn.shopify.com/s/files/1/0440/1335/5166/files/11732895681.pdf
    • https://cdn.shopify.com/s/files/1/0438/8922/9979/files/41041300378.pdf
    • https://cdn.shopify.com/s/files/1/0434/3827/6760/files/isaiah_53_commentary.pdf
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/buniluniniwetaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/gerumisuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/91436145528.pdf
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/nudimemura.pdf
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/neumonia_atipica_sintomas.pdf
    • https://cdn.shopify.com/s/files/1/0430/9263/9897/files/12336724381.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f2c.bin
11c855711bdf1a24f91d483fb11939bdb2a717cd524e402f4da1443147f05e4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2C 4672 bytes
font_01_sfnt_off00006f2c.bin
090d569652c4dbacd22a3fbbe1f38fb832076200c15bf7c2f90b0f8927c84348		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2C 5236 bytes
font_02_sfnt_off000080f0.bin
efb46b80401c5942f7640fc2710e7228859171c73f0676f3df3e7e29cac88288		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F0 15704 bytes

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