Malicious PDF — malware analysis report

Static analysis result for SHA-256 19dcdee34c46cbcc…

MALICIOUS

PDF

83.5 KB Created: 2021-02-14 20:59:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ac8a6b3ca8859ffeb9bf61fec68061c5 SHA-1: 869f844311f74b291a8ea2d2e9828518beeb4964 SHA-256: 19dcdee34c46cbccee7d5f3395eebc46939e30c403fd303f4fa26ab53837bd7c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=decatur+county+schools+ga PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473963/normal_6000f7409702b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385038/normal_5fcb15da29318.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368501/normal_602222aac550c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489404/normal_60011410a58a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368745/normal_5ff269c368bea.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/i21lieM/lixed.pdfIn PDF document text
    • https://cdn.sqhk.co/dadirowuj/Owicdgg/other_name_for_kikiam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401540/normal_5fd6c8b36c1af.pdfIn PDF document text
    • https://cdn.sqhk.co/gubogezemazo/cghE6jc/door_kickers_mod_apk_unlimited_stars.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460460/normal_5fdc1cf7d767b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://babupit.epizy.com/32120597643.pdfIn PDF document text
    • http://xatonidolib.epizy.com/centre_europeen_de_formation_televendeur_avis.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/rufos.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/31103529551.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/zalora_terbaru_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/60196486162.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/2522984450.pdfIn PDF document text
    • http://fepujivorer.epizy.com/bevovosenumin.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f68c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF68C 4996 bytes
SHA-256: 71c2a32a085cb58a410a83dee43929b9f5c3f518334f3bd3156ec6b33beaa0a4
font_01_sfnt_off0001078f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1078F 13596 bytes
SHA-256: ef0b5bd0da5e2f6e7c29d26bb94b6e1151364178d129a03229ec3318cba473c1
font_02_sfnt_off0001331f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1331F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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