Malicious PDF — malware analysis report

Static analysis result for SHA-256 70009d011bd1744c…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 20:13:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f042def6ba1bacecd05a728fab031ef SHA-1: d5661aebe968d3c5cdfa488e7572a7782cc21618 SHA-256: 70009d011bd1744c53a59ea46073f9e5a3bbaff9653125b787bd8432f53bee27
174 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=ca+state+disability+forms+pdf`. It also exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a lure to external content. No scripts were extracted, but the presence of embedded URLs and the redirector link strongly suggest a phishing or scam attempt.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=ca+state+disability+forms+pdf
    • http://files.vapmedia.com/uploads/1/3/0/8/130874422/sofakamevonal-kidemo-gazepokedo-firine.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0443/2547/0364/files/new_english_file_beginner_third_edition_teacher_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/lafeminalad.pdf
    • https://cdn.shopify.com/s/files/1/0438/2588/9442/files/80617006728.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/income_certificate_format_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/lakujemozeja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4952854333.pdf
    • https://cdn.shopify.com/s/files/1/0433/5586/5243/files/buwutabimafejuxufuruwir.pdf
    • https://cdn.shopify.com/s/files/1/0427/9340/2524/files/sidokifem.pdf
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/gixixa.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0358/files/anisakis_sintomas.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/delete_a_slack_channel.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006782.bin
571cfe05b9630ee90006c677af951018861261e50aaed80e3af14c163072db01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6782 5332 bytes
font_01_sfnt_off00007983.bin
ee4c8d277aad873626909b78b8f425a623fbea88ece9a1d72246bea7a11be0d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7983 9944 bytes

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