Malicious PDF — malware analysis report

Static analysis result for SHA-256 306e6a986fd87db2…

MALICIOUS

PDF

56.1 KB Created: 2020-08-21 19:20:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a44349a9d5024876e4154ab642390d64 SHA-1: 7da880fff86541a87ba7ea951de3694501f43750 SHA-256: 306e6a986fd87db247b15c6b85b35e66029ea2189a18c9447a510715a79ac3c0
202 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to a redirector service (ttraff.cc). The document body, though heavily obfuscated, contains the same URL, suggesting a lure to download or visit a malicious site. The presence of a 'download button' heuristic further supports this. The file is likely a downloader or part of a phishing campaign.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=birbal+stories+in+malayalam+pdf In PDF document text
    • http://files.ultimatefrisbeenow.com/uploads/1/3/1/4/131482926/2791022.pdfIn PDF document text
    • http://lovijira.ghilliedhumusic.com/uploads/1/3/1/0/131070152/8714786.pdfIn PDF document text
    • http://jotifajam.ramsclubswimming.org/uploads/1/3/1/3/131379808/daxipurefezes-daxisovus-pomujuduj.pdfIn PDF document text
    • http://files.yellowpeardesigns.com/uploads/1/3/1/4/131438245/zojopeteruvugiv-tepijewoki-pufer-jesal.pdfIn PDF document text
    • http://xerepev.jvgardens.com/uploads/1/3/1/4/131454269/973376.pdfIn PDF document text
    • http://shoxet.com/1a0h5yIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5959/9765/files/72473579829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5320/3102/files/90978007722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9639/files/typhoid_fever_blood_test_report_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/2987/7151/files/comment_fusionner_plusieurs_en_un_seul_avec_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/bioetica_concepto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/wave_equation_question.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/mabawudurilodidubod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/modaxobiposazijawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6491/2024/files/real_chess_game_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/wetowuremujixejajowigofux.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
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7387 5480 bytes
SHA-256: 4cf6072cf2202da5be7b19663ad2727bb3a66ae5bc2161e5283b0a767b465542
font_01_sfnt_off00008602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8602 8532 bytes
SHA-256: cacf1052928072b4e0f660ea7558285a5f2ad1e59613baee9e9f6b6c1bab1c16
font_02_sfnt_off0000a31e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA31E 15424 bytes
SHA-256: d4628df4f25626f142e9be035af99c00619db45f5a0524b2f316320a5fc53f3e

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