Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f82396bed7f268…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 10:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd508c406aa5feed08bc34aa3a57b7b4 SHA-1: 2930c807f81a0f588d4f16a546632b98a2c0c90b SHA-256: 72f82396bed7f268d28bba9f66e729ad455ccd42c657e46914bd6ef7cf52897c
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a redirector URL associated with a game hack lure. The ML classifier strongly indicated maliciousness, and the presence of a redirector suggests an attempt to lead the user to a malicious site for phishing or further payload delivery. No scripts were extracted, but the document structure and embedded links are indicative of a malicious lure.

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.com/pify?keyword=beyblade+burst+app+hack+apk
    • http://files.hooligantheatre.org/uploads/1/3/1/4/131437457/5052108.pdf
    • http://paberok.branfordartcenterct.com/uploads/1/3/0/7/130776167/likiruzorole_biwijibaxatu_xeridalanosib_wedev.pdf
    • http://lubuwep.ryesnextchapter.com/uploads/1/3/1/4/131453133/dotofajim_viguxetiziki_mewusupigas_nusodulogidi.pdf
    • http://files.enhancedrecovery.info/uploads/1/3/1/6/131607232/e40a7b1c8ebd.pdf
    • http://loboka.handsonhexham.co.uk/uploads/1/3/1/3/131383483/9642171.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/kendrick_dna_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0432/1237/4174/files/46705063373.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/31501644431.pdf
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/lanopizovukufaketazunexim.pdf
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/84841564366.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/11870986857.pdf
    • https://cdn.shopify.com/s/files/1/0434/2087/6962/files/49905147676.pdf
    • https://cdn.shopify.com/s/files/1/0434/0911/3240/files/pezamisamegusavu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/cadenas_de_markov_un_enfoque_elemental.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/gelejaxaralutisosutogux.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kulabegidubonigupux.pdf
    • https://cdn.shopify.com/s/files/1/0441/0497/4488/files/cambridge_english_advanced_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/mixobafakefizexirubomav.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_off000063ca.bin
17008afaa2d8604d9fca70d006a4f8152c4791e9bd314ce4c7116d0dba68709c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CA 5132 bytes
font_01_sfnt_off00007551.bin
398ec4e98af666684e176f369c22a376fa4377f5c7b1009fd0db2fc1a12bb7e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7551 10304 bytes
font_02_sfnt_off000098a2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98A2 4324 bytes

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