Malicious PDF — malware analysis report

Static analysis result for SHA-256 df26e180c5d5fb4d…

MALICIOUS

PDF

78.8 KB Created: 2020-10-12 04:45:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: cfcc76bb2ea12de061c0d6c11eb7ef55 SHA-1: 55332673d228622bf57c663dd3b31aaf07a3f26c SHA-256: df26e180c5d5fb4db2e6d64edbfdaf5f179f0cac4ab460582a0dcfb7d648c424
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure. The embedded URL 'https://ttraff.link/pify?keyword=angular+frequency+formula+pendulum' is the primary indicator of malicious intent. While the document body is heavily obfuscated, the presence of this malicious link strongly suggests a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

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.link/pify?keyword=angular+frequency+formula+pendulum In 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/1/0431/1344/7584/files/famous_boxers_word_whizzle_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4697/2821/files/78398984736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0653/6091/files/19804897810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5814/1605/files/sapasirininuletuxuvefaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0524/8149/files/ap_calculus_ab_free_response_2017_question_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8746/9469/files/rabagubupixalowap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/pickens_technical_college_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0278/9525/files/well_being_center_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4439/7468/files/75431257635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7358/4289/files/82066700661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2876/0741/files/avast_secureline_vpn_activation_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7626/0518/files/friv_4_kids.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD007 5512 bytes
SHA-256: 9261c51a6193714aa8fc11aa761ab9dab1831b467ec5437159327cbca9e6a761
font_01_sfnt_off0000e2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AE 16464 bytes
SHA-256: 0b23df34c80a39b2c4638ca1ce1c213f461b64333607841bc9e132179b27d104
font_02_sfnt_off000117d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117D2 16400 bytes
SHA-256: 4a4e24f67454524ec812c6cdc487b1e002c0cbcd6660ddb94d355752d835d6cc

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