Malicious PDF — malware analysis report

Static analysis result for SHA-256 81f6c6630ae4f1b6…

MALICIOUS

PDF

321.2 KB Created: 2020-08-19 06:06:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1c18a4d189552401d528fed5e282b85 SHA-1: 2a97acdb40272584d5689e21c2a31d4bb3bfae59 SHA-256: 81f6c6630ae4f1b6c951113454e286d8e9035a931518080858e7b7322bd64e01
104 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to known malicious redirector infrastructure, specifically using the lure 'original bible pdf free'. The embedded URL `https://ttraff.ru/pify?keyword=original+bible+pdf+free` is flagged as malicious. While no scripts were explicitly extracted, the nature of the redirector suggests an attempt to lure users to a malicious site, likely for phishing or further payload delivery, aligning with spearphishing attachment tactics.

Machine Learning

  • Nyx PDF Classifier clean score 0.0765

Heuristics 4

  • 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.
  • 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.
  • 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=original+bible+pdf+free In PDF document text
    • http://files.thekeytotorah.com/uploads/1/3/1/8/131857717/dixutuvoxe.pdfIn PDF document text
    • http://miwoxaj.acollinsedu.com/uploads/1/3/1/4/131437619/a00900.pdfIn PDF document text
    • http://files.sankofaoutreach.org/uploads/1/3/1/3/131380915/penagamavurul.pdfIn PDF document text
    • http://files.meowmeowpowpowlit.com/uploads/1/3/1/4/131483143/3849451.pdfIn PDF document text
    • http://files.harrytadd.co.uk/uploads/1/3/1/3/131398195/mepodofezalad.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://fedorahosted.org/lohitIn 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
    • http://www.fontrix.comhttp://www.nhncorp.comIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3051/0742/files/ferritin_test_lab_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8173/6096/files/giteridilunojokikesogopab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/wolokasaseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5595/5619/files/ganubufufatelugixev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6163/1384/files/sbi_clerk_exam_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3762/1404/files/lebusezobamafanasateden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/suxepapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0096/2967/files/craftsman_ys_4500_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/arcswat_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6766/9654/files/30140147293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/pre_algebra_worksheets_grade_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4337/files/juvumipiwub.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn PDF document text
    • http://scripts.sil.orgIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 23

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000215fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x215FE 13760 bytes
SHA-256: 53538c470c305d924b2ec4dd8e0d860633d62be77a7f207e95c657e4a4b46ad2
stream_012_off00030a7f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30A7F 10224 bytes
SHA-256: 0dc056e4df5e63501e4879a923373d75f3389cbe5470967e3c95bd7711a9ed61
stream_014_off000362be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x362BE 38388 bytes
SHA-256: bea0914aa74625b27df0fd9dac100e6e93defafba8abf170d5b87cae8341b45e
font_00_sfnt_off00020324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20324 4996 bytes
SHA-256: 4d649eb33d9e86e629a44e6b9847fc366f26d1edab60ff87f6fef1253f363c86
font_02_sfnt_off00023c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23C7E 6812 bytes
SHA-256: b4cf7d618ecdadf6339b558576cac64d794d7bc41f080c5195ace90fa86b387d
font_03_sfnt_off0002542c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2542C 45288 bytes
SHA-256: 2219f407d6a659a96d1edaf9ee29d847022dec0eacb0715a7281aa6a3c3a7c2d
font_04_sfnt_off0002be52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE52 5200 bytes
SHA-256: 4a23e48dcc7af2a879a7d581d54dfbd37a532f19d922a4e29387a6edde0f5e91
font_05_sfnt_off0002d005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D005 2940 bytes
SHA-256: 2e728541761a870941519d667ab0224fd9b406321bceaeb046aaa18ba3a7953a
font_06_sfnt_off0002dc45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC45 7120 bytes
SHA-256: 397838006f5ddacad12919cf1229af8f27e1a5c7a096ad49aa51044be6c5861a
font_07_sfnt_off0002f4a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4A7 7352 bytes
SHA-256: 75830b4db16f943a74b28947c6dcac63311551fbaf00bbb266b7401b557a85ce
font_09_sfnt_off0003285c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3285C 18572 bytes
SHA-256: bbff4bd0c76c548d3c04bd3354186c98291acf2ee91b8ea2f2c79273f6c4fc29
font_11_sfnt_off0003b517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B517 3560 bytes
SHA-256: fd09a0753748dd8c6eadd56dfc73e0ac2107f718178315a66b3e04940ae7709e
font_12_sfnt_off0003c173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C173 9240 bytes
SHA-256: d5de4d1432c797bb80581a8182418c317e7c8af116758355f0edb7cc4151660d
font_13_sfnt_off0003d879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D879 9236 bytes
SHA-256: 144fa451fcf20fb387b36a6a69bd91d0c7db10b0f3f39f6426d6596f0f16dcbb
font_14_sfnt_off0003f679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F679 5172 bytes
SHA-256: a5d2b426e748de1835db9a36efbf9146d6d6e4ca491cb342a6dbf474d83c4a6c
font_15_sfnt_off0004082b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4082B 13860 bytes
SHA-256: 6da1137baa2718a5e4db351dcc708cedf177e1f102f01380ebb137ac8971b6e6
font_16_sfnt_off00042aef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42AEF 14704 bytes
SHA-256: 40684d3f7f315dce62a22ae6f9f5aa9edec3590940905f9e6dc74415f91ef40b
font_17_sfnt_off00044f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44F71 5252 bytes
SHA-256: a6cb17fb1937a55e00347883ddd4ad19cf8e3b38cf03dae863c7c83a6f827391
font_18_sfnt_off00046052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46052 8376 bytes
SHA-256: 5c04e2806ccbf1165897861cc2ff4b523aef99955f6bda33b6a53233588516eb
font_19_sfnt_off00047a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A13 2128 bytes
SHA-256: 503d069fb89b4c46109658bc57685003caa7eb2f3f0dbbc08f87bf5a99c9f0e6
font_20_sfnt_off0004832d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4832D 19468 bytes
SHA-256: 842f3da2fee92f4831e84c01e723cc9bfad7fcc6e6466429c02761bbfe9de034
font_21_sfnt_off0004b66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B66D 8540 bytes
SHA-256: c84a3a7383f56f8c73cfb8cf7d158dcf54c4d77d6675160c08f066a9f854a7d7
font_22_sfnt_off0004cf1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF1A 14120 bytes
SHA-256: 29d30a9d7da32e1f490eaee681aa0a3baca1d1bf5f66bc9be6fc70cc3bd1e5b5

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