Malicious PDF — malware analysis report

Static analysis result for SHA-256 610a44fef9d743b6…

MALICIOUS

PDF

44.1 KB Created: 2020-09-01 21:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ebf8f55ade26b01c07617772df9d557 SHA-1: 856ccf237dfa5c65e06b13e9cbd86054b9cbc6d5 SHA-256: 610a44fef9d743b6f05053f3b8270bbc99e97c311c2aa39a4e9a513c3e999793
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm designed to obscure the primary malicious redirector. The primary malicious URL, https://ttraff.com/wix?keyword=sperm+cryopreservation+pdf, is flagged as a known malicious redirector. This suggests the document's purpose is to lead users through a chain of redirects, likely to a phishing site or malware download. No scripts were extracted, and the document body is heavily obfuscated.

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/wix?keyword=sperm+cryopreservation+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/diloloviladareledazozap.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/xuwazesod.pdf
    • https://cdn.shopify.com/s/files/1/0431/7098/8196/files/autobiography_of_a_yogi_tamil_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/7786/7422/files/31115643528.pdf
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/vumeluni.pdf
    • https://cdn.shopify.com/s/files/1/0432/8154/7417/files/favitobibababepeselisuv.pdf
    • https://cdn.shopify.com/s/files/1/0439/0400/8360/files/barnsley_6th_form_college_jobs.pdf
    • https://cdn.shopify.com/s/files/1/0448/1400/8486/files/dapilusuwavitusegoz.pdf
    • https://cdn.shopify.com/s/files/1/0445/5782/8260/files/biology_gcse_questions_and_answers.pdf
    • https://static.usrfiles.com/ugd/97aff7_baf11445552d468d8af4407b386ef515.pdf
    • https://static.usrfiles.com/ugd/c1108c_6b2914ddb1014bb4a5311c345e184b92.pdf
    • https://static.usrfiles.com/ugd/38eac1_9ad13271042f47218f7bb56aa40eaaba.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_off0000600e.bin
0d43ffc7f6f056d50a7c16d1cec8f6c0679beeed866d5650346b48bbe3208ff1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600E 5324 bytes
font_01_sfnt_off00007215.bin
6856b6799f69a529b9d5631acee7c1033768e9190d846df644c4b748d898336a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7215 10448 bytes
font_02_sfnt_off00009589.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9589 4324 bytes

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