Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f339c189954f0d9…

MALICIOUS

PDF

72.3 KB Created: 2020-08-21 04:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e07d3fe2d46bc4a8624c91b908a0f949 SHA-1: 2cb0e1815309a54e68bd44d6101331144cf2389a SHA-256: 6f339c189954f0d941d8624b17f01edb7c94d43a9f64eafee72c8bc0e15cccc8
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to lure users to external links. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=guideline+synonym+words', which is flagged as a known malicious redirector. The presence of numerous PDF links, many pointing to Shopify domains, suggests an attempt to create a link farm for SEO manipulation or to disguise malicious links among benign ones. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 5

  • 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.
  • 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=guideline+synonym+words In PDF document text
    • http://mojisiv.nataliemarie.org/uploads/1/3/1/4/131437502/kufixawaro_zopamisire.pdfIn PDF document text
    • http://files.mypittsburgchamber.org/uploads/1/3/1/3/131379732/vipot.pdfIn PDF document text
    • http://files.yogaterrium.com/uploads/1/3/1/1/131163943/4709747.pdfIn PDF document text
    • http://wafax.themintmovement.com/uploads/1/3/2/7/132740285/ac907939082acee.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.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6797/3538/files/retained_placenta_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8108/8670/files/pafaverulirivoseva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6330/3575/files/lorirewajabebotidege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/806726736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/zagotuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2827/4585/files/1224660148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/diablo_2_unique_items.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/panthers_schedule_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6290/0374/files/27220690139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0577/9863/files/26090524748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/79422192685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/guneruxuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/51921776301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0998/2107/files/diabetic_amyotrophy.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off0000e54c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE54C 19436 bytes
SHA-256: 6ef91b52294061afee7c04ddaff540805cec86c50d5e92feaf8e4f6d5e992974
font_00_sfnt_off0000606f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606F 6704 bytes
SHA-256: ddf8f6fb79b582f1c493c51a96dd7205240fea98923c1d34b0585ff3bb9f7b7a
font_01_sfnt_off00007778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7778 4984 bytes
SHA-256: bba1a1271a4da66d7804437336e204b634195b5604d932ac68e5a22bbe014a70
font_02_sfnt_off00008867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8867 3708 bytes
SHA-256: 0be97644eeb6d28ee4ab0594ccbf1c920573bdd8f547e11e3c8fbaa7cc1b031c
font_03_sfnt_off000095bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95BF 2328 bytes
SHA-256: 6d897259d7ab9db79b0dbb16904cd99ff486aa7f4a475590a5d3e44eab6e0eed
font_04_sfnt_off0000a075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA075 2108 bytes
SHA-256: b3976ad28991401f3a7e0d936621f3963ed8fd81aff5bedc9e25cf6548b1959b
font_05_sfnt_off0000aa40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA40 6640 bytes
SHA-256: c8cb303e765c67f43d6d34f29c1d02953890772ff7b697be779fb29335000f72
font_06_sfnt_off0000bbdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBDF 12492 bytes
SHA-256: d41c8ae3a6953cbba4b49dfc00bbb65776eaf89d3765ffa23d1175513071a7a0
font_08_sfnt_off000104b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B2 3276 bytes
SHA-256: 333cf0bae5291019b79d77a37696b89786718dc77a0e6f1c7356514a48765311

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