Malicious PDF — malware analysis report

Static analysis result for SHA-256 225ea3da191044ae…

MALICIOUS

PDF

42.6 KB Created: 2020-08-04 01:14:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5b92c5fac60d65739ca6837b0e6d41c SHA-1: 882a8ba57f3157d6449f5ae7f24aa7bbdaebc159 SHA-256: 225ea3da191044ae21c58a0bc7196a2ba6bd7b383c7adf52c2ea5c7a1e34ce22
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, a common tactic for SEO poisoning. Crucially, one link redirects to `https://ttraff.cc/pify?keyword=bebidas+isotonicas+hipertonicas+e+hipotonicas+pdf`, which is flagged as a malicious redirector. This suggests the document is part of a campaign to drive traffic to malicious sites, potentially for phishing or malware distribution.

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=bebidas+isotonicas+hipertonicas+e+hipotonicas+pdf
    • http://files.grumpypastor.com/uploads/1/3/0/8/130874067/mufokubu.pdf
    • http://files.granvillecountyteencourt.com/uploads/1/3/0/9/130969897/jezomewoju-mirivupasowajoz-jetesaxoromavo.pdf
    • http://files.embracingspirit.net/uploads/1/3/0/7/130740221/mirinuv_kagawulif.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/16099665682.pdf
    • https://cdn.shopify.com/s/files/1/0439/6810/2558/files/70118686930.pdf
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/50286716968.pdf
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/zilimerumosejefefabetud.pdf
    • https://cdn.shopify.com/s/files/1/0429/5619/3955/files/majoko.pdf
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/18799506766.pdf
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/tizazida.pdf
    • https://cdn.shopify.com/s/files/1/0429/4646/1855/files/50777687913.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/41039684333.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/14016073103.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/46610194837.pdf
    • https://cdn.shopify.com/s/files/1/0434/1451/9973/files/maxonifosaberuguwowatek.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1549/files/bazofemibewozorax.pdf
    • https://cdn.shopify.com/s/files/1/0434/7019/2805/files/ponosetamoritebivedawunan.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_off00006647.bin
d9e4d246f4aad9444635a703bdf6d7758ffe8e598b83b41037899ea5777919ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6647 5400 bytes
font_01_sfnt_off00007898.bin
a54435eef76958c31e82a035a6556ffc3db9576d9d005838e03368bb10283e0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7898 10724 bytes

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