Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf8becee3d1cf1ca…

MALICIOUS

PDF

44.1 KB Created: 2020-08-08 14:22:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a78c2985e4339a9a3bedd7b8ab3f0d5 SHA-1: 5beac0d8d04a8710f2e855255da83a58404d4a9e SHA-256: cf8becee3d1cf1ca723f8a2b38630519fdd082a7b6a6175204401bcf969b54c3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at https://ttraff.ru/pify?keyword=enga+karuppasamy+song+lyrics+pdf. The document body, though partially corrupted, suggests a lure related to song lyrics, aiming to trick users into clicking the malicious link. The presence of multiple Shopify URLs, some flagged as benign and others unknown, indicates a potential attempt to blend malicious links with seemingly legitimate ones.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=enga+karuppasamy+song+lyrics+pdf In PDF document text
    • http://files.irishsodablog.com/uploads/1/3/1/6/131636990/7654960.pdfIn PDF document text
    • http://files.duikinstructeur-thailand.nl/uploads/1/3/1/4/131483143/e44c689190f534.pdfIn PDF document text
    • http://files.neuralmechanisms.org/uploads/1/3/1/3/131383743/xenojulufibul_redexitizu_kapususogafat_selus.pdfIn PDF document text
    • http://files.thepatriotoutpost.net/uploads/1/3/1/3/131380456/xivegasubogobi.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5978/files/96094072483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/pdf_to_word_converter_download_adobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/kisunagesuwobibewezofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4937/0268/files/mapibetinufuvipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5008/2202/files/82076917878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0401/8336/files/zomupokixozalakumexobezak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/kobamavuwuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/65582660885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42386580717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005ffe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5FFE 10940 bytes
SHA-256: e9bafef57a2944fee63c9b8e57bf94fad3e0a899052b50a675d69ab7eefe2b0c
font_00_sfnt_off00004cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF0 5600 bytes
SHA-256: fe6dee339ab424d1bd5b3e0f5a18609305f9d814915040959be698205425b1ac
font_02_sfnt_off00007b64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B64 12668 bytes
SHA-256: a6734fbda2bbc8fe9cc5763aa82824629658356c54226b5fa9be08a96a20b152

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