Malicious PDF — malware analysis report

Static analysis result for SHA-256 848c9a6c52b17a91…

MALICIOUS

PDF

68.8 KB Created: 2021-02-22 06:02:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 7095e99e20e5f9333efb0573e0211d29 SHA-1: 47c74de084b0126e11ab70b2d7b00415e6331b78 SHA-256: 848c9a6c52b17a910b0c0ed227284ddebddd6f6a83035c62b66240e8cda53216
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely intended to deliver a phishing lure or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to exploit vulnerabilities or trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://druttle.ru/strik?utm_term=how+to+connect+a+motorola+bluetooth+earpiece PDF link annotation
    • https://cdn.sqhk.co/xuxawexa/gvfMNie/shake_shake_promo.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/gv7xpxN/hungry_shark_world_hack_ios_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408589/normal_5ffa79aeb941c.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/YhdBjhl/49104368910.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwosowo/c2hfhcq/medieval_family_life_facts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426059/normal_60298645971ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485450/normal_602c8a333b0df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453333/normal_5fefb5eea3e7c.pdfIn PDF document text
    • https://xuvasilibozin.weebly.com/uploads/1/3/5/3/135335949/kasuwiv.pdfIn PDF document text
    • https://cdn.sqhk.co/zezaxemepe/jiV3CTC/lucrezia_battute_da_golden_buzzer.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/dijm4EF/79547663377.pdfIn PDF document text
    • https://cdn.sqhk.co/gadujotev/hjibLp0/vowipusorubegulonadomoki.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/sitok/lakajawepidezevi.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/bartenders_guide_old_fashioned.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/95822167393.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_off0000cfa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA3 5188 bytes
SHA-256: 3dc5e26c98b0d3b13b4faf10b69196c87ea062df654a63c8ff1779e88edb9e30
font_01_sfnt_off0000e127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE127 11024 bytes
SHA-256: 975697724f34691a4bebdfbc0ceaa512c1dc4983bff03d9b40d7d0a07a764616