Malicious PDF — malware analysis report

Static analysis result for SHA-256 c554dbc8e68743be…

MALICIOUS

PDF

52.7 KB Created: 2020-08-09 23:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a8cd4bda63788cfc3a10ad122a82d90 SHA-1: e80f99bfa134a62374c9b56d7f0f2ea3a09629ad SHA-256: c554dbc8e68743be97e8b789850e7aa4512b3f87f44f16491b8cfff2549eb56f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, appears to contain the same redirect URL. This suggests the primary goal is to trick the user into visiting the malicious URL, likely for further exploitation or credential harvesting.

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=accuracy+vs+precision+worksheet+pdf In PDF document text
    • http://files.philadelphialogisticscenter.com/uploads/1/3/1/1/131164476/jokimolomi.pdfIn PDF document text
    • http://files.nemslax.com/uploads/1/3/0/8/130874627/5339460.pdfIn PDF document text
    • http://files.clouddanceralpacas.com/uploads/1/3/1/4/131453255/269dd.pdfIn PDF document text
    • http://tatup.insurance4vacationrentals.com/uploads/1/3/1/3/131398020/5867174.pdfIn PDF document text
    • http://files.annaclairecalligraphy.com/uploads/1/3/0/8/130813953/95f39b2.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/1/0432/6067/4210/files/82066791875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1148/0472/files/ditekukiwitezaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5693/9676/files/zusodibefilibenijuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9736/6436/files/38594027457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/88227763884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/11698717451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/98514900269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1154/7037/files/zotatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/59637902597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/39675565944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/rojerokesumovefatinelat.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 8

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_off000085bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BD 5520 bytes
SHA-256: 572101abbfc63a7d246bf05faa97c8675225f97febfcd18a5b486a5c99d59863
font_01_sfnt_off0000989e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x989E 14188 bytes
SHA-256: 92da37a3e3d99285e4f449c1a7e3fa3e581b043f4c121b58d9b06f88be487ab5

Open this report in the interactive analyzer, or submit your own file for analysis.