Malicious PDF — malware analysis report

Static analysis result for SHA-256 830f2fd76b0bcdce…

MALICIOUS

PDF

97.4 KB Created: 2020-12-21 20:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 116827f7b4426c901c0302b37ce35944 SHA-1: 57b95110e6cd49465ac75780284cbc41c3f33e66 SHA-256: 830f2fd76b0bcdce8684969fee728ce9b95b40056e51a1a4cf13b16d96ef1a66
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link farm and an SEO redirector, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/strik?utm_term=heartstrings+meaning+in+malayalam PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501042/normal_5fb5f3aa49ee7.pdfIn PDF document text
    • https://vokevifiv.weebly.com/uploads/1/3/4/6/134657891/xepewuxuzerujig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379970/normal_5fdf3b9c1e80d.pdfIn PDF document text
    • https://wanezevidika.weebly.com/uploads/1/3/4/5/134588498/xapekujapiteno.pdfIn PDF document text
    • https://xexiwimelogodit.weebly.com/uploads/1/3/4/5/134593193/gizosebotefiterit.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://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • https://uploads.strikinglycdn.com/files/60a3caa8-8acc-4bec-9087-ae7eeb540161/xoketigulotuvoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3fd1217-f34f-4334-abac-891bd67a9622/filelinamidawos.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5c5ef8cdb769c6da48bb/1606376543269/roland_barthes_camera_lucida_trke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0a8ad63-8478-4774-bc43-7760f495084c/13710912864.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc528f2abaecd33183df1a5/t/5fc6f127a907d7439ccd1632/1606873383822/leatherman_multi_tool_knife.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54e01085bf90c0e1a4b0c/t/5fca46ce414f5e3523868953/1607091938146/16580074360.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc55163d49dd124475193a8/t/5fcdcfeb05ddc9599d431e7a/1607323628556/elfster_secret_santa_shareable_wishlist_app_store.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73af4439-7c8d-41b8-ae2f-f8ec2d38c69a/32227293616.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0da75085bf90c0efcd65a/t/5fc357b3a97599144e629505/1606637492002/dragon_ball_z_games_unblocked_76.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd37006394b41d6424d862/t/5fde69475809ae3434fae880/1608411464634/65144759434.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off00015970.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x15970 17552 bytes
SHA-256: 639f533dc3d59dab8f31e5d570f067b22abb569f411b42e7fafda2910e46530e
font_00_sfnt_off0000c733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC733 3544 bytes
SHA-256: 2599871317e27d8d02e9dd8b6a4cf193a6c2551b6111d1c1b58b2c2c6c64eb87
font_01_sfnt_off0000d3e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E9 5068 bytes
SHA-256: 29343c394cd2be63d5b2605e020233290c335fc988e5c18ceaab9fdbf599d23f
font_02_sfnt_off0000e515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE515 2656 bytes
SHA-256: dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5
font_03_sfnt_off0000f012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF012 12192 bytes
SHA-256: 12939d4d091da47a70d755e4e391669bade756e900abf4a3120506aea3309e7e
font_04_sfnt_off000117c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117C3 2328 bytes
SHA-256: 864cbe2c6973b44d2b71e19ffbffb2328dcb3759b07ceb43c11d5a372fc4956d
font_05_sfnt_off00012279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12279 2108 bytes
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e
font_06_sfnt_off00012c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C4F 15060 bytes
SHA-256: 2ea751e5d542f02fa4141a0932d8da91f5d5cdd41bd6d4746499e5e47228c1da

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