Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffda076be1d55c8f…

MALICIOUS

PDF

74.6 KB Created: 2021-02-14 17:23:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7e3a31d0892eea93dde50141bc30842c SHA-1: 1ae283657114f6afd091ea9cc79a51da6eda0eb6 SHA-256: ffda076be1d55c8fc21e2c676bbc0689bb5272b7ae9f7d09534e2f7b64814dc9
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains embedded links, one of which directs to a URL associated with downloading a modified game application. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The presence of external URIs and the overall structure suggest an attempt to trick users into downloading potentially harmful software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jacksth.ru/wix?keyword=afk+arena+apk+mod+1.15.08 PDF link annotation
    • https://bamufikike.weebly.com/uploads/1/3/1/6/131606241/nelosidofe-xemifunovap-dozilabuka-wulezef.pdfIn PDF document text
    • http://vorecan.space/99386058128cqh32.pdfIn PDF document text
    • http://domastmsk.space/943032615569jnw8.pdfIn PDF document text
    • http://extrameets.fun/femifonarovivifofaju4r0fh.pdfIn PDF document text
    • https://pexafibilo.weebly.com/uploads/1/3/4/4/134484824/kabiwubelogikinif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384316/normal_5ffb8db991b1b.pdfIn PDF document text
    • https://mafaredoli.weebly.com/uploads/1/3/2/6/132695491/disisemi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449973/normal_6023fbd33a541.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367940/normal_5fde85dc1ab1a.pdfIn PDF document text
    • https://mivodijabid.weebly.com/uploads/1/3/4/7/134732330/6544939.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383928/normal_5fd9b0d9977b4.pdfIn PDF document text
    • https://bupulaserora.weebly.com/uploads/1/3/1/4/131437689/wunodojupajidot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jikopot/76889382659.pdfIn PDF document text
    • https://s3.amazonaws.com/rufonali/53785565772.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE722 5576 bytes
SHA-256: d2c25eb65c2b420c3c747a041a15b20a59d818a0e32317ea9577a53bd73c271b
font_01_sfnt_off0000fa1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1F 10444 bytes
SHA-256: 27d555a0de4494ea0d0c4baca633f9e92895400c93b9639d545d3113b11daafa

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