Malicious PDF — malware analysis report

Static analysis result for SHA-256 6180a2c03c84dccd…

MALICIOUS

PDF

68.5 KB Created: 2020-08-08 21:34:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2932696e877ec52df5d3183a6fdb5804 SHA-1: 79d9fae3eeaed83d0e5d7c0e8db218464ffb9769 SHA-256: 6180a2c03c84dccd1edf4923c830c90239927b3c58833eaec9788f1f58cd3608
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one identified as a malicious redirector, leading to a page related to 'nios assignment front page in tamil pdf'. This suggests a phishing or scam attempt to trick users into downloading potentially malicious content. The presence of a "download button" heuristic further supports this, indicating a lure for user interaction. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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.ru/pify?keyword=nios+assignment+front+page+in+tamil+pdf In PDF document text
    • http://putasuwur.drgarygoodman.com/uploads/1/3/2/6/132681946/3510140.pdfIn PDF document text
    • http://files.therockwm.com/uploads/1/3/1/4/131453350/537642.pdfIn PDF document text
    • http://files.crisiscontrolsolutions.com/uploads/1/3/0/7/130739489/9700341.pdfIn PDF document text
    • http://files.creativeescapeworkshops.com/uploads/1/3/0/9/130969169/xufazamur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3525/files/gikadekutoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8093/1733/files/26287910643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/87247465051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/68929093171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/hacking_the_caged_system_book_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/arthashastra_book_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/93342443929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3962/9218/files/976308374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9665/2443/files/geometric_design_of_highways_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7466/4086/files/saints_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/bomasepifexakixegofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9708/7390/files/bibafulanemeraxabuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 10

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFE 5328 bytes
SHA-256: a68a53968c1cd5e5286d06248739bdef2bee446a4fefd91bcc29d5c207854dfa
font_01_sfnt_off00006f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0C 2656 bytes
SHA-256: c206ac4eca120f096112d408dff6b33a2f721090936d80486df636e1cd240fde
font_02_sfnt_off00007a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A10 4944 bytes
SHA-256: 658369fdf4dbfcc549ff0dbb011939356d60280aa168350d25aadc0d5ebdd447
font_03_sfnt_off00008a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A28 2328 bytes
SHA-256: 3702365b3034b9d7945da23b991b5e2ac3f8bb06d1ba3be7e5ba1b5d8dd48c9f
font_04_sfnt_off000094df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94DF 2108 bytes
SHA-256: e66bd646ff29f48b94a898642357a1d5295b77faffa0bd70eb77acb4aebc9a97
font_05_sfnt_off00009eb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB5 2604 bytes
SHA-256: 7f3a1ef136f36ba68bc36e5bcd31de243dce7f4b60e01c4bc40f508baeb48ca0
font_06_sfnt_off0000a9cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9CF 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_07_sfnt_off0000b770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB770 10152 bytes
SHA-256: 9790927e219d744867132f116e4236948011b7c356f610d8bb967db6f4cff1fe
font_08_sfnt_off0000da55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA55 8232 bytes
SHA-256: 87b11184b5fb382926058b62571af46aa6dbfb48f25dd730750aae8b36686012
font_09_sfnt_off0000f5bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BF 2608 bytes
SHA-256: c4869f4910101e9de114603d80c87e7465cc14a3edf423f39a6ef78b10429b6f

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