Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3160e5e34457318…

MALICIOUS

PDF

57.4 KB Created: 2020-08-21 19:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3927b9fa3347fbee2c26be9cbbbdf8a5 SHA-1: ce62e5aa0348cd83efdd3cbe59c073fa9a2a488c SHA-256: e3160e5e34457318b549671c4c5d9776b8e8d75290463b557c80d321a663b030
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same redirector URL. The presence of numerous links to Shopify-hosted PDFs suggests a link farm technique to improve search engine ranking and lure victims. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=aircraft+accident+investigation+pdf In PDF document text
    • http://files.elmermeats.com/uploads/1/3/1/3/131380480/9076105.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/85192619444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/53837099869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/78294033322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/55675114719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/80181515865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9032/7205/files/human_body_anatomy_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3755/5868/files/79536175275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/woropuzap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/7967170765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/87520491223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/rizojegipimotowelek.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000084cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x84CC 12400 bytes
SHA-256: 0bfdabc6fc51c37fcbde2862eec0997f6ee19a91477ba65698a315ce145fa390
font_00_sfnt_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 5272 bytes
SHA-256: a9a01bc0a24455e19a528938643e2b42675aa7efed3b3cc1fec709e6a49bfc52
font_01_sfnt_off00007359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7359 5128 bytes
SHA-256: 9570612a7a1064f57eb3b47fb9f9674bcbb98a7d5639978e9e8c2ef329a4b8c7
font_03_sfnt_off0000a768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA768 10212 bytes
SHA-256: f4892ec4855293769ecf75f02089990b0d46be61ece8d4e2d6b270044c35cb26
font_04_sfnt_off0000ca06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA06 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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