Malicious PDF — malware analysis report

Static analysis result for SHA-256 8248e14a6c65ce7a…

MALICIOUS

PDF

44.8 KB Created: 2020-08-24 06:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a99330a693829c9a44e627d08ce99589 SHA-1: 4e3a26a19923e5aefce91eed2fc381d4d2e6141e SHA-256: 8248e14a6c65ce7a21037aa05ec137e0c1d564379c629cdd54bb1ad3d8bf545f
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Bollywood song video dj'. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic. No scripts were extracted, but the primary malicious action is the redirection to the ttraff.com domain.

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=bollywood+song+video+dj
    • http://zomikiraf.ddtpphinc.com/uploads/1/3/1/4/131407312/bivofufesazelafuse.pdf
    • http://files.pdbravard.com/uploads/1/3/1/4/131408798/ed461852727.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0438/2644/6498/files/6670272150.pdf
    • https://cdn.shopify.com/s/files/1/0435/5581/5583/files/xoviramevulapemuwo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8500/2920/files/sufipowidunisirameropap.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4542/files/digital_forensics_investigation_report_template.pdf
    • https://cdn.shopify.com/s/files/1/0452/6129/1680/files/73898470384.pdf
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/a_night_to_remember_walter_lord.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/74197901298.pdf
    • https://cdn.shopify.com/s/files/1/0432/8695/4139/files/93772924298.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/65095319526.pdf
    • https://cdn.shopify.com/s/files/1/0439/8333/9678/files/low_back_pain_sciatica_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0465/5372/7126/files/68871434004.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_off00005088.bin
a17d548ccad7a3577f26d313d325fd951e949a86f2953eb8ed2db5304e94e456		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5088 5068 bytes
font_01_sfnt_off000061fe.bin
567a859f5142d0fde22af7682815f0cb8b152d2a5a50a8a9735139c42443917d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 10608 bytes
font_02_sfnt_off00008534.bin
48c447898a145ec8c825d13cc1d0ab96bb207dfe35c4aefd8a7a35a6dfd1c7e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8534 9464 bytes

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