Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cf2bdcbea0aed0…

MALICIOUS

PDF

74.9 KB Created: 2021-02-26 00:13:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6cd556004f3f30544baf09cde0ca6467 SHA-1: 2d6e26c4fc4bab0c0b2ccbb8fe9e1889e72a95fd SHA-256: c0cf2bdcbea0aed00a26ecfa583f9acf7670753c8b01e01b3017eb952216e2f0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, disguised as a search result for a common query. No scripts were extracted, but the overall structure and embedded URI suggest a phishing attempt to redirect the user to a malicious site.

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
  • 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://jottigo.ru/123?utm_term=how+to+delete+google+history+on+android PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485946/normal_5ffd1cbc77979.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/jiwep.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/xodafugiwefajela.pdfIn PDF document text
    • http://lienforkid.com/60567676105nxow0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387243/normal_5ff3cc64f12cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485572/normal_6034e0a51e895.pdfIn PDF document text
    • http://fastcreditcheck.info/7208415791clcx8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387929/normal_5fff828513851.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443824/normal_5ff0a5dac7b16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471275/normal_5fe6eaa7541e6.pdfIn PDF document text
    • http://drive4mclaneeffingham.com/780383165677k836.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495707/normal_60091876160cb.pdfIn PDF document text
    • http://lokifasumefi.iblogger.org/akali_guide_top.pdfIn PDF document text
    • http://jikusofare.mywebcommunity.org/the_art_of_talking_to_anyone_book_in_hindi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_6014716cec1d9.pdfIn PDF document text
    • http://begetus11ppz.xyz/the_bravest_full_movie8d68f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426687/normal_600ddd95e5df7.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/wills_eye_philadelphia_broad_st.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/rockola_fireball_cd_jukebox_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zoxuditavuvov.rf.gd/tcode_for_invoice_ageing_report_in_sap.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/febrile_neutropenia_guidelines_2011.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/nejolirodigeje.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_off0000e68f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68F 5240 bytes
SHA-256: 3ae962695d55f613f80904abefd250afbac0cb965e8e206b642fb5e0de1cf041
font_01_sfnt_off0000f870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF870 10712 bytes
SHA-256: bcbca40eec106737654dd08dfeb439abdd2483166aaae8eb6b491c56c6ddc5fa

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