Malicious PDF — malware analysis report

Static analysis result for SHA-256 693a1f0248e27457…

MALICIOUS

PDF

99.0 KB Created: 2021-04-05 05:44:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36473f1f4258631227ed60d81dd6f01f SHA-1: d1eade1d30f94e28329e59cfb2734e7f823676d9 SHA-256: 693a1f0248e2745746b30cff75f084e8ddd70142f17b00cf76a4839de4ffc120
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL disguised as a search result, likely intended to trick users into downloading further malicious content. ClamAV and ML classifiers flagged this PDF as malicious, specifically identifying it as a phishing trojan. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/wix?keyword=the+paper+menagerie+pdf+free
    • http://dombitarf.ru/94886630143tx54c.pdf
    • http://prod-fruit.space/dolce_amore_song_your_love_audioekhoe.pdf
    • https://kepubaxolawava.weebly.com/uploads/1/3/4/7/134703856/6550192.pdf
    • http://beteziraz.22web.org/65282865389.pdf
    • http://zupanito.iblogger.org/parkers_car_valuation_guide.pdf
    • http://julozagoren.22web.org/88570731019.pdf
    • http://subbellassecret.com/gameloft_gangstar_city_apk_downloadrucqv.pdf
    • http://topifurolezup.iblogger.org/lc_application_letter_format_for_college.pdf
    • https://zabivavisona.weebly.com/uploads/1/3/1/4/131452967/a8b1cd0b625f.pdf
    • https://wesedujixezibo.weebly.com/uploads/1/3/1/6/131606467/6834904.pdf
    • https://furimubabo.weebly.com/uploads/1/3/1/8/131856330/173056.pdf
    • http://goodsfor.life/gezedobasaburoz4od.pdf
    • http://healthit.space/valewuxikizemowiv3zeme.pdf
    • https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/1333537.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zetubakuz/saxavef.pdf
    • http://lavavoju.rf.gd/42435258330.pdf
    • https://uploads.strikinglycdn.com/files/63f2396c-d679-41aa-9da1-fb68334281bb/visopile.pdf
    • http://lapukup.epizy.com/givenukuxob.pdf
    • https://s3.amazonaws.com/numegubowalonan/xosunofubifi.pdf
    • https://s3.amazonaws.com/toguvaju/dikov.pdf
    • https://uploads.strikinglycdn.com/files/b88c79d1-6cdd-488c-9f30-9723f126fda7/60907537165.pdf
    • http://linakagiwabofa.epizy.com/xulolamum.pdf
    • https://s3.amazonaws.com/gitipelut/85318828677.pdf
    • http://jufowepazo.rf.gd/vastu_shastra_in_telugu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000146cb.bin
08f5cfc7eeda1fedc509560a9be295a502d62572bb02f236f9904c1993eceb66
pdf-font-stream PDF embedded font (sfnt) at offset 0x146CB 5196 bytes
font_01_sfnt_off0001584e.bin
d8f07e88701f348130f0a72e11a4fb7c6f4f0c5b29dd99a63902139be25ab6ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x1584E 11284 bytes