Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca47f160b0f59995…

MALICIOUS

PDF

72.8 KB Created: 2021-02-04 00:38:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b0c4a79a8442f8522ac5d7ae58be2d14 SHA-1: d16ac8e68c398d0d58d0d3b933d45906a4951617 SHA-256: ca47f160b0f59995602508f83a93ced7d4f7232d130735585068da2e71192c48
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a software download for 'Cisco packet tracer'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristic firings suggest this PDF is designed to redirect users to malicious sites, likely for phishing or further malware delivery.

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
  • 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://yafferge.ru/wb?keyword=cisco%20packet%20tracer%20%20new%20version In PDF document text
    • http://lightly.store/master_cat_pet_shop_onlinesvmon.pdfIn PDF document text
    • http://zaliv2k20wowowowoow.xyz/53175182156oaf0c.pdfIn PDF document text
    • http://epipog.com/biselejinotatarunodig5nqwa.pdfIn PDF document text
    • http://rrrrkkkkk.space/3495159067owqyf.pdfIn PDF document text
    • https://witojezig.weebly.com/uploads/1/3/0/7/130776148/2185396.pdfIn PDF document text
    • http://edayafar.xyz/texusuxinalojnxl1s.pdfIn PDF document text
    • http://afracheat4.xyz/croatian_rhapsody_piano_sheet_freeti1hj.pdfIn PDF document text
    • http://titoto.xyz/434490446469ycq0.pdfIn PDF document text
    • http://edapog.online/willy_wonka_musical_script1gr1v.pdfIn PDF document text
    • https://waxukazo.weebly.com/uploads/1/3/1/0/131071095/5675665.pdfIn PDF document text
    • http://armada.technology/real_racing_3_traileruc0ol.pdfIn PDF document text
    • http://pycnidwzxc.info/felodasowazawimorames5alpk.pdfIn PDF document text
    • http://cocobeautybar.ca/bazel27glc.pdfIn PDF document text
    • http://autocredit.moscow/wigatemuneloaa52z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tonaligu.epizy.com/android_compile_sdk_version_28.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/prefix_dis_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/tojube.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/manual_lawn_aerator_bunnings.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/goniwesamesepemebux.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_off0000e196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE196 5016 bytes
SHA-256: 749d8e9039844c3b06e4cc4042da6f1a2235e230a096dbc639d9b5f3cd72b39c
font_01_sfnt_off0000f2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2D3 10472 bytes
SHA-256: ac523519e89109aa8e5a49998048f62d5ac6d27c96c575a3ce1b95c7910757d8

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