Malicious PDF — malware analysis report

Static analysis result for SHA-256 609a724261804a2d…

MALICIOUS

PDF

36.1 KB Created: 2020-08-18 15:29:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 036c0ad5600f3fb695f39863b4b7c6be SHA-1: 226fcab5b9e7e830414e431d5bae2d48dd0d1422 SHA-256: 609a724261804a2df3be2ec4f18bd39266e9251e929b5b448e6cb2d992fc2cbd
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=bengali+new+movie+villain'. Another critical heuristic indicates a PDF link farm, suggesting SEO spam or a similar content-luring tactic. The document body, though heavily obfuscated, contains references to a movie and the authoring application, likely serving as a lure. No scripts were extracted, but the presence of malicious links points towards an attempt to redirect users to harmful content.

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.ru/pify?keyword=bengali+new+movie+villain
    • http://files.readwritebake.com/uploads/1/3/1/3/131380895/bejajifel.pdf
    • http://files.elisabethhudgins.com/uploads/1/3/1/8/131856956/megevakup_gagator.pdf
    • http://files.katiegracecollins.com/uploads/1/3/1/3/131380889/zutod.pdf
    • http://files.laasmbs.org/uploads/1/3/1/1/131164556/09d2f54ad3ca.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/mugajalafusijew.pdf
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/10348368644.pdf
    • https://cdn.shopify.com/s/files/1/0438/4574/6838/files/92078212190.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30552771564.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/bamaduvelajomabo.pdf
    • https://cdn.shopify.com/s/files/1/0445/7637/4948/files/bitmap_image_to_converter_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/jeximeloboranifufujorig.pdf
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/sedilenasunikemafojegek.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004265.bin
7f93ee6e7bd572897bb777d21431cd0b77aaa8ff1c61ce5e562af6fba3a98e5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4265 4932 bytes
font_01_sfnt_off00005333.bin
7255831b72f605e9e8c0e4ed3a8d6b7164965c653ee32bc9954ba4eecac0a1bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5333 4432 bytes
font_02_sfnt_off00006161.bin
03ecef3dc3b3ae83240f5715beccf1e824fad6b6f7449c2538e3737ea90b85de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6161 9476 bytes

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