Malicious PDF — malware analysis report

Static analysis result for SHA-256 6434d2e54a188274…

MALICIOUS

PDF

56.1 KB Created: 2020-08-31 15:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8779c48281eb44473e5b1216d26cec3d SHA-1: 8f5c2199696f92f4b95e0868585ce80984d3badd SHA-256: 6434d2e54a188274f11d5fc6012854cc531939427ebeb921f5ba06470067d3d1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document is designed to trick users into downloading malicious content by presenting itself as a "question paper pdf". It leverages an SEO link farm to host numerous links, including a primary redirector at `ttraff.me`, which is known for malicious activity. The document body contains obfuscated text and embedded URLs, indicating an attempt to disguise its malicious intent and redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.me/wix?keyword=upsc+botany+question+paper+pdf In 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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0e89944775ce4cac9cbbc9645d74763d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b914b5_6cfb0569b5754d9bb1350ff3e764ec05.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5a163b0170c94cfbb48ce232486b0802.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ea91e_e8602217de4d4e4ea4169278b33c139e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6cf392_b098d832a3c64b39a6b0a8e88160e41b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/455f95_7ab2ee5be3f34fc3836f35c287328181.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4ae4db_de8c142f154c428eb612b6c5ec958d9c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/advanced_systemcare_pro_12_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/51462957987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6138/files/xezomeziwivupar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8568/4124/files/enlace_peptidico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/26048070933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/high_fliers_report_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7138/files/wadepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1655/files/yamaha_htr_7065_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/newizuvirosonimile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/gederokexuxajivagexup.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E1 5356 bytes
SHA-256: a8d28fc30ca7d3f0ec76bd7720fde67107b66aa4dce53aac087c4a5c4cc195e6
font_01_sfnt_off0000730a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730A 2320 bytes
SHA-256: 5e067315a2bd9524b6254977960f062bb129990ed69868068e29b4596197f3c8
font_02_sfnt_off00007d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5C 9780 bytes
SHA-256: 2843d7094e112e94bfa950e5444ef232c3f01147cadeac65b68e45704c33550c
font_03_sfnt_off00009f0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F0F 16224 bytes
SHA-256: a349519ccbdbca3d75704c2becf615ab37801eb1543272228454131dceb83acc
font_04_sfnt_off0000b45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB45C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
font_05_sfnt_off0000c25d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25D 4088 bytes
SHA-256: 78cbc9dcf7affb080887b0ff6311186ed0fa9d0d665ea996853720d56d4ba84c

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