Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1167d13e8b43ffb…

MALICIOUS

PDF

39.4 KB Created: 2020-08-01 04:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52923ea02c07d03c8217a19618b08cb5 SHA-1: a3aa36e892e49299c5e937b733a84d9e9712ab92 SHA-256: f1167d13e8b43ffbf0185c7b326c7aec3118780bbaf4643c4b5bb3964365c167
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.com/pify?keyword=happy+wheels+apk', suggesting a lure to download potentially unwanted software or malware. The presence of a link farm further indicates malicious intent to distribute harmful content.

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=happy+wheels+apk In PDF document text
    • http://files.shelbystangatreasures.com/uploads/1/3/1/3/131398143/nuwepanomov.pdfIn PDF document text
    • http://files.mybenstratton.com/uploads/1/3/0/7/130776126/salosenite_zelekuduketaxu_kilegofofep_doganus.pdfIn PDF document text
    • http://files.stephenedwardmazujian.com/uploads/1/3/0/8/130813906/giwadub_sukujakelog.pdfIn PDF document text
    • http://files.blendedeo.com/uploads/1/3/1/6/131606407/fijut.pdfIn PDF document text
    • http://files.ridetripapp.com/uploads/1/3/0/9/130969897/kigubakazen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/rasewisixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/bosijiwojufefaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/palafabinogedewimifot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6465/3984/files/fetojod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gamusuzojikifikukudubug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8450/5498/files/78844630967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3338/5381/files/fujugupiwejidixapokuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/duferilexezeresikazipar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2440/6933/files/87245782530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0028/1762/files/79406365031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2168/0283/files/99295117606.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://scripts.sil.org/OFLIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C42 5032 bytes
SHA-256: b63bb3603527ab369d2c00b866dc3dbdecb51a8d946849a614cc2e7654c15573
font_01_sfnt_off00006d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D73 10352 bytes
SHA-256: e8d9c904e33f73fcdcdd99528be51f428f01ad956273829b12030535e750a2a4

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