Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c3ab76dafe196d3…

MALICIOUS

PDF

74.1 KB Created: 2020-08-01 09:34:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2d9c7997ffbe6beed34630c57e3c66e SHA-1: 166cfd6488be4a10789f8b0e2056f44d0c7f2899 SHA-256: 6c3ab76dafe196d3130afa6c279d11357f5d6ef47eac8767aa2eb78329004dc7
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to a phishing or scam attempt. The embedded URL 'https://ttraff.cc/pify?keyword=what+does+adv+stand+for' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and numerous other links to PDF files hosted on Shopify and other domains, suggesting a coordinated effort to drive traffic to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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=what+does+adv+stand+for In PDF document text
    • http://files.westcoastjen.com/uploads/1/3/1/6/131606111/9902366.pdfIn PDF document text
    • http://files.marinwoodturningandcompany.com/uploads/1/3/1/4/131454521/ratikoxujoberu.pdfIn PDF document text
    • http://files.alanbirtwistle.com/uploads/1/3/1/3/131383664/werox_xapedewero_bemidituziv_zurer.pdfIn PDF document text
    • http://files.ikmchauffeurs.com/uploads/1/3/1/4/131407089/6c3fd143ee88.pdfIn PDF document text
    • http://files.happiervalley.com/uploads/1/3/1/4/131408954/7697838.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/1/0433/5131/0488/files/8976324337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5978/files/fesodeferikudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5379/1909/files/diner_dash_flo_on_the_go.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/55094289515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/tijagefipaniredal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9874/3719/files/1121715546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7870/files/70169867674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2886/3397/files/nilodopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/61632596774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8103/9013/files/36441708849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5804/3807/files/fipapujawaloriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0809/7445/files/vemog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ferenap.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_011_off0000ee5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xEE5E 18176 bytes
SHA-256: 9a53eb0f5d899206140142024e1329928d04523b9b037af6ea44b3d64dff0b7c
font_00_sfnt_off00006bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD9 6320 bytes
SHA-256: 8dd18ea3225c9156ee85a36fa04e9c099c7a096be51c4f08e18fd5a20beb4544
font_01_sfnt_off0000819d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819D 5036 bytes
SHA-256: 5e47c5225d302061d079c84b1916cb4d4b4d982a71d9b083dd4503fe617b2974
font_02_sfnt_off000092c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C6 2656 bytes
SHA-256: dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5
font_03_sfnt_off00009dca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCA 2328 bytes
SHA-256: 864cbe2c6973b44d2b71e19ffbffb2328dcb3759b07ceb43c11d5a372fc4956d
font_04_sfnt_off0000a880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA880 2108 bytes
SHA-256: d117309382da938f7dffedc42f90dd4217b4d540d75629b80669d975ecbc171e
font_05_sfnt_off0000b24b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB24B 6640 bytes
SHA-256: 538512be6c526ea957b587fa229624d829dca4873b622d187784a60d2c877fcd
font_06_sfnt_off0000c3e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E9 12696 bytes
SHA-256: 22371b6bb7ed83de44911d5d3d76780e4c19a05cb107bff0db46962566921f35
font_08_sfnt_off00010b2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2B 3276 bytes
SHA-256: c12c670e310cd2dd0f4b1ea6ea0d01ef35e1284caa1cfc967b978b02bd897c09

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