Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e330eab12d7515c…

MALICIOUS

PDF

76.7 KB Created: 2021-01-11 22:58:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fcde7138bbc3a21a6efb38a96106fac0 SHA-1: aca3f93cc2aa6120210aa15a337ee603f23fb498 SHA-256: 5e330eab12d7515c2cd1e7d12ac2ed7993c8c197d4e6f477ab166d65c1f568db
162 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a malicious redirector link, identified by ClamAV as Pdf.Phishing.Trojan. The presence of a call-to-action button further suggests a phishing attempt. While no scripts were explicitly extracted, the nature of the malicious link indicates it likely leads to a second-stage payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/aws?utm_term=bengali+font++for+bangla+word In PDF document text
    • https://gobodukigibab.weebly.com/uploads/1/3/1/8/131856162/c10c81b2e96.pdfIn PDF document text
    • https://rupogasonewu.weebly.com/uploads/1/3/4/6/134653860/fadupokurafenupoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f8dc010134da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479710/normal_5faa0cf33ee5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_5f914612f06fd.pdfIn PDF document text
    • https://wedebiki.weebly.com/uploads/1/3/0/9/130969436/721b1df73660f02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374203/normal_5f9f3eeb47179.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502500/normal_5fb6d45a601b5.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/jexijer/kankakee_river_fly_fishing_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/empathy_map_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/74014529922.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5D 5180 bytes
SHA-256: 9e12d42a1c08d22024f25508d725dface28921bf7dfc96e59c4ac3db88bf8053
font_01_sfnt_off0000ee1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1F 5824 bytes
SHA-256: 4de45d0c8b7e3a889f0b822b68510dae8ab9d57c2f53664ae4825524958881a8
font_02_sfnt_off0001010e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1010E 11072 bytes
SHA-256: 5a4bc871ee9f93db955c5d6896bb2f4fde91497d0afb02cec7a839512444c3ae

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