Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e173e52f1199788…

MALICIOUS

PDF

44.4 KB Created: 2020-08-08 16:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da95ab2b1b4617a0fa646e11355f69a7 SHA-1: 8162ef24d8bb270d5cd705b9de51be86a48a810d SHA-256: 2e173e52f11997883d16a2b288574a8864ab85b9a3adfa39a9a34ca74a36e3b0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=articles+with+geographical+names+worksheets+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be luring the user to click on the malicious redirector URL, likely leading to further compromise.

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.com/pify?keyword=articles+with+geographical+names+worksheets+pdf In PDF document text
    • http://files.thelockerroom78.com/uploads/1/3/1/6/131606619/pitinumexi.pdfIn PDF document text
    • http://files.momsclubdh.org/uploads/1/3/1/8/131856279/kegedikuke.pdfIn PDF document text
    • http://files.cocoaandspice.com/uploads/1/3/0/8/130813447/d1b07.pdfIn PDF document text
    • http://files.thehouseoflifevenice.com/uploads/1/3/1/3/131381555/7e9aad7.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/1/0428/9835/8432/files/4155504299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/16861619827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/convert_string_to_integer_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/titoferitijiworogutumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2725/7749/files/gabiwojetogepeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vujunuvitiwowus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9794/7300/files/upload_file_in_reactjs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8545/3728/files/21760916311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/10078981900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/burn_notice_season_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7946/7170/files/povitinodumukipavu.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_off000060bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BB 5500 bytes
SHA-256: 832b10b6e895f62725f246ceea362be5afcceca2ebb2c669cfb81d03932dd247
font_01_sfnt_off00007350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7350 10132 bytes
SHA-256: e4b52160844d6831380e25d58121575c5b3a94e482473ce1d2343bd3579b30e4
font_02_sfnt_off00009606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9606 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f