Malicious PDF — malware analysis report

Static analysis result for SHA-256 55badfba3c0c1505…

MALICIOUS

PDF

64.7 KB Created: 2020-08-24 14:11:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcd4592a002efa6c5ddfd5ec9989778e SHA-1: e7c3a36e5a5f30515aae34214ff696343951f1f3 SHA-256: 55badfba3c0c15054989fdc26981d5f86769e3ed9c57969f50cbbbd7b248704b
214 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The document body, though partially corrupted, contains text suggesting a lure related to travel guides and includes the malicious URL. The presence of a callback phishing lure heuristic further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=get+your+guide+rome+to+florence In PDF document text
    • http://files.adelanteyouthmission.org/uploads/1/3/1/0/131070398/5922910.pdfIn PDF document text
    • http://files.geneseecountymg.org/uploads/1/3/0/9/130969046/fanibo_fexanakibi_gijigij.pdfIn PDF document text
    • http://dekozim.ceciliaviney.com/uploads/1/3/1/4/131437812/lupob_nudom_tisowonimuvapub.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/1/0437/2021/2629/files/57328667921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/celebration_gospel_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3246/8904/files/13961041716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/zitekise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/atrocities_act_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/zunipuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/41623334701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/pofamisaxulijarixowovazuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/dibafexitokomusojuto.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 2

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_off0000bfd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD5 5088 bytes
SHA-256: 2a41f97a555df89e8c68cc0ec0f543e4a63cbc93e71a8e33598952c6319c2419
font_01_sfnt_off0000d11d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11D 10772 bytes
SHA-256: b69965d14eb46efbeeaf654a6794e4692f6970fb5c64894e253ebd36884ee34e

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