Malicious PDF — malware analysis report

Static analysis result for SHA-256 5888a219270e8560…

MALICIOUS

PDF

78.8 KB Created: 2021-01-08 16:23:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 18376f137654ad1769962b866181c5a0 SHA-1: 291e6a7870912dccd0880a76289874385abafdc3 SHA-256: 5888a219270e85602722915112bcd1fb2df3fa45e454baa14976c838c1953cfc
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, https://traffmen.ru/aws?utm_term=main+bhi+badhiya+song++sanju, is the primary indicator of compromise, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • 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://traffmen.ru/aws?utm_term=main+bhi+badhiya+song++sanju In PDF document text
    • https://static.s123-cdn-static.com/uploads/4466368/normal_5fccadac312c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379602/normal_5f8d91fd5cdad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375342/normal_5f98c35e666f2.pdfIn PDF document text
    • https://vedokaxo.weebly.com/uploads/1/3/4/5/134529556/wexaguv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5f89a7face63c.pdfIn PDF document text
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/xiwuvififitok.pdfIn PDF document text
    • https://cdn.sqhk.co/mepowokugo/cegdhcl/ponemem.pdfIn PDF document text
    • https://cdn.sqhk.co/toralapiluw/fhhmOgf/download_game_metal_slug_x_ps1_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489259/normal_5fe0faa6d5255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_5fa3d76828604.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/posufij/snuzpod_bedside_crib_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/aamir_khan_biography.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/composition_functions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/arcsine_square_root_transformation_in_sas.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC39E 5284 bytes
SHA-256: 71aa07f0fa2575bfdda66bb37e1e2e380f6bc1b8d1aa34d5e586f0829c43ffdd
font_01_sfnt_off0000d5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A5 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000e108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE108 14028 bytes
SHA-256: c9b6bb862025da7dd8a969b1af67039f39694a659d0e8bb75d847d3c6c52d8a0
font_03_sfnt_off00010dbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DBB 9264 bytes
SHA-256: 5cec00bc2a8e69311bd9d6daa3d411fcb2255246c47f56cbec4ac9f0bbfb16e5

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