Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad5a6c55aed44668…

MALICIOUS

PDF

39.6 KB Created: 2020-07-28 03:52:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5233927da05f99c85a3f0fbce877510 SHA-1: 6ad88ee4dfed3630b80741392fe00b16c9e137bd SHA-256: ad5a6c55aed44668092f2d36b73bb65d4218cab5683e06e91e36956457c26464
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=harmonic+balancer+puller+performance+tool'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains text related to a 'harmonic balancer puller performance tool', suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=harmonic+balancer+puller+performance+tool In PDF document text
    • http://files.dustbust.us/uploads/1/3/1/6/131606169/sujolotevojewukusej.pdfIn PDF document text
    • http://files.tlcraingardens.org/uploads/1/3/1/0/131070993/4403743.pdfIn PDF document text
    • http://files.russcarlton.com/uploads/1/3/2/3/132303337/tubij-sened-xiwudejujizu-jovorubid.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/1/0434/9103/3250/files/13457399226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/76794018111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/6537453272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9414/6200/files/vuvunegoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3873/4496/files/juxeligovaleloged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8312/9251/files/6182665477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9831/files/30072830934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3681/files/tikizudugadiminakoxej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/32679263504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/fezemuwobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/440962056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67142307476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/wikamapebotijuvapudis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/53841843033.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 6

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_off00005c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C08 4964 bytes
SHA-256: 5ee3cb0f481c0c8155a9615f7f4d7ce2142da63fb2c65bdb1943bf0fb2037f6a
font_01_sfnt_off00006cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC8 10636 bytes
SHA-256: 4babc5520e30ea18fdf1256757711bcc7b41b716f51d7b825d8e6c1cd1294041

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