Malicious PDF — malware analysis report

Static analysis result for SHA-256 14af8dc56f8cb156…

MALICIOUS

PDF

50.0 KB Created: 2020-08-24 02:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4076481559e89c8f8d278f5ebdb0242b SHA-1: febdd82d70e91a0baeec227204a365a0efebf4b0 SHA-256: 14af8dc56f8cb156e52fa127f081b5eb10dc1b5de8d44a3e12028de3106f67b3
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a user manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate malicious intent, likely to lead users to a phishing or malware distribution site. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=canon+eos+m3+user+manual+pdf
    • http://pidakes.rtapps.co.uk/uploads/1/3/1/3/131379655/2709096.pdf
    • http://files.missdivakurves.com/uploads/1/3/1/4/131408364/3519499.pdf
    • http://files.zer0excuses.com/uploads/1/3/2/6/132682684/5ebbd2026a9cfb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/3556/4964/files/84057343706.pdf
    • https://cdn.shopify.com/s/files/1/0430/7202/8833/files/all_expenses_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/john_deere_trs26_snowblower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6522/1023/files/galileo_discoveries.pdf
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/80765559768.pdf
    • https://cdn.shopify.com/s/files/1/0439/5502/8126/files/learning_arabic_language_of_the_quran_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8026/9477/files/97738452927.pdf
    • https://cdn.shopify.com/s/files/1/0438/5977/1557/files/1661380178.pdf
    • https://cdn.shopify.com/s/files/1/0445/5556/7263/files/zewewejogakogomaxox.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/ramajumazoxiniremesuxiwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/cerro_rico_de_potosi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3302/4929/files/jitamoge.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_off0000719a.bin
ac66ddecb1889e99694234647e4a1e19b6174440e696c9ee44c6cb9711419273		 pdf-font-stream PDF embedded font (sfnt) at offset 0x719A 3312 bytes
font_01_sfnt_off00007d7b.bin
f9af4a0adb4c5e820b73811d917693f8ad8a8d2a107e656e2ef71aa2e8ba213f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7B 5256 bytes
font_02_sfnt_off00008f40.bin
8ec234461959f76339c9925891dce6b2d4be225c02d0dd1c4ecd4a8a1e916271		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F40 14256 bytes

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