Malicious PDF — malware analysis report

Static analysis result for SHA-256 c941ad01143b3e4b…

MALICIOUS

PDF

48.3 KB Created: 2020-08-25 01:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e34379cabe1ec128e7f7c1f88049447 SHA-1: b04b45fe4130c6416673ee0a15ff3db282db9906 SHA-256: c941ad01143b3e4b12f352585be2a8a9478de2739d85f5796c80a21adf54046d
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'Jio 4g lte network app'. The presence of a callback phishing lure heuristic further supports the malicious intent of directing users to external resources. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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=jio+4g+lte+network+app In PDF document text
    • http://files.4loveofbaskets.com/uploads/1/3/1/6/131636651/kotoku.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/1/0458/1693/8662/files/video_barongan_jawa_timur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/pisimolujusog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7142/files/50134310252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7216/7841/files/letideripasekun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/vepirodonazevebumidepivel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4595/1400/files/blackroots_science_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2960/1175/files/75178021801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/528329090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7189/files/98064613720.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D43 4832 bytes
SHA-256: cd2358c14abcef8b1fbe9fd9638b2f28469c6df049c6ee186b58c0983099229b
font_01_sfnt_off00006dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCB 10376 bytes
SHA-256: 45f26e132e0122fcbef883bb75b9824c03b9dc2dba290ccb15b2ab9a2f4c03f1
font_02_sfnt_off0000916d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x916D 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1
font_03_sfnt_off0000a685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA685 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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