Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ee7b668c0efb65…

MALICIOUS

PDF

58.5 KB Created: 2020-08-24 23:25:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91021f75422bf8fe5a398e9f36868884 SHA-1: ff9fff1c28dd9ec5605542adcbc95145934f23ab SHA-256: 56ee7b668c0efb65a31dd2f9c9bfc930739b1b48cc197f630aeb9d805848fd1b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL. This suggests the primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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.cc/pify?keyword=horse+farm+games In PDF document text
    • http://zijilokog.emasullivan-bissett.com/uploads/1/3/2/6/132695839/ef1050cecbfed1.pdfIn PDF document text
    • http://files.michellerampulla.com/uploads/1/3/1/8/131872149/tewuviwu.pdfIn PDF document text
    • http://files.stpetersselsey.com/uploads/1/3/0/7/130775675/jupozumajubudep.pdfIn PDF document text
    • http://files.livolivo.com/uploads/1/3/2/7/132740804/d25505.pdfIn PDF document text
    • http://vuxefeze.pumpkinmoon.net/uploads/1/3/2/6/132682883/pazawugen_mizeve_wepelaj_xaxiwufazu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/pifukepaloramoxokapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/sirobemivaxinape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zogubarekerebadopotuleju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/andrew_sarris_auteur_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/63066692460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/bavapowemofixozanimagebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5287/5424/files/autocad_2016_crack_free_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/7300/2661/files/beach_handball_match_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/412807974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/18865164306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4997/5961/files/terraform_aws_client_vpn_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1871/5289/files/70634619998.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000098f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F6 4568 bytes
SHA-256: f8a7c653d3ff2f10b33f2f7ada2ec66792da4469d8b5bfaca633b7f90cf977f7
font_01_sfnt_off0000a870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA870 11480 bytes
SHA-256: 0b7048a54a7b20cf64b0b1ea1914264ba13fe642711e142a74712e7d03c16f20
font_02_sfnt_off0000cea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA7 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c