Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc949255789f66a…

MALICIOUS

PDF

42.7 KB Created: 2020-08-23 07:54:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77c0aec805b65a385a64c55c904c1ed5 SHA-1: 1d3861486416e1d22ad09f503c29be0e5dfd4ea0 SHA-256: 3bc949255789f66a15e240fae5181f66950b7d4791634b7a33e92f3049cb0c9b
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=kartonyono+medot+janji+monata'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, indicating a likely attempt to direct users to malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of external links, many hosted on Shopify, which could be used for SEO poisoning or to distribute further malicious content. No scripts were extracted from this sample.

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=kartonyono+medot+janji+monata In PDF document text
    • http://files.friendsofthelibrary-chattanooga.com/uploads/1/3/0/7/130776481/2416705.pdfIn PDF document text
    • http://files.prigitalsolutions.com/uploads/1/3/1/0/131071076/577897.pdfIn 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/1/0429/7208/6423/files/81577410498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/how_to_clear_autofill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1388/8405/files/89954987123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/rolling_bearing_skf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/61944633376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6935/7728/files/51822443931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/abirami_anthathi_mp4_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8747/9455/files/xarameraliwetuturukar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4107173541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/kajaxarudivumesefeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9748/7512/files/bharti_axa_general_insurance_online_policy.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_off0000539c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x539C 4908 bytes
SHA-256: c35752cb3a3ad408403c611a3f82a7a6292a51bf326cd80ce6c68d60b9354837
font_01_sfnt_off00006446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6446 10268 bytes
SHA-256: daa0b21780407be6c18be92d503f3e3d6478e3be34aa7408daa589e4cc9a64dc
font_02_sfnt_off000087b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 16096 bytes
SHA-256: eba4684676e36b02b4b62b93ceaacba817a7a00dfb5e59476827ea8e0a606e4d