Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc252bbd33813128…

MALICIOUS

PDF

114.5 KB Created: 2021-03-04 01:38:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: ac3502a62f33bc369d433235b7cc3841 SHA-1: d7189935c4c528cb11036f3815113a233710796c SHA-256: cc252bbd338131286975aaacfca9b3506ec6596f7a504823e26f135073150d6f
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely intended to trick the user into visiting it. The document body, though truncated and obfuscated, suggests a lure related to 'games', further supporting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=bolich+unblocked+games PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373769/normal_6000b837f01e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380237/normal_5fec879992ea1.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/UTLjage/wesusinosinepok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_601455917bf54.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/AdidsNH/microsoft_authenticator_app_android_new_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/YhcijUy/77726859618.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/eMAjeie/facts_school_code.pdfIn PDF document text
    • http://kalukawuwo.mygamesonline.org/formula_de_volumen_de_prismas.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/lorerexeg/where_to_place_tens_pads_for_menstrual_cramps.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/73156949478.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/xafepe.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/sodastream_new_gas_bottle.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/18162020471.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/25716521375.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/chauvet_dj_colorband_t3_bt_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/trasformare_minuti_in_centesimi.pdfIn PDF document text
    • http://joxumokuri.epizy.com/zusula.pdfIn PDF document text
    • http://xajuvezovaguze.rf.gd/7331731494.pdfIn PDF document text
    • http://jedolup.rf.gd/63657897710.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_off0001856f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1856F 5512 bytes
SHA-256: 143eb66bc5e8a7859f4a310604525e88d8b3252a417c944415382288c358b170
font_01_sfnt_off00019801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19801 10580 bytes
SHA-256: d9dc112981affb4d466c925d3e94a677467d08252bb76f022d4f053fabbfa4a9

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