Malicious PDF — malware analysis report

Static analysis result for SHA-256 19c71b4fdb3268fd…

MALICIOUS

PDF

75.7 KB Created: 2021-03-29 05:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 898c4c02ea0a6d18ecf115a8ecc75492 SHA-1: 79a0a6fb33f07b1679ad2da9be195c4f5eac8199 SHA-256: 19c71b4fdb3268fd833fdab7153b80577d9d580eb77642c7b217b31f491cba96
96 Risk Score

Malware Insights

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

The file was detected as malicious by a machine learning classifier and ClamAV, specifically flagged as Pdf.Phishing.Trojan. The embedded URL and document body suggest a phishing lure related to ebook conversion. While no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://druttle.ru/award?keyword=convert+kindle+to+pdf+drm
    • https://cdn-cms.f-static.net/uploads/4366337/normal_6049be7a41cf9.pdf
    • https://static.s123-cdn-static.com/uploads/4464995/normal_5fca82d55d7e9.pdf
    • https://cdn-cms.f-static.net/uploads/4458840/normal_6016fe12771ef.pdf
    • http://reveruverof.medianewsonline.com/zojazefobajonusizopon.pdf
    • http://www-sfr-fr-monespace.com/chamberlain_whisper_drive_plus_reset_codemy1le.pdf
    • https://static.s123-cdn-static.com/uploads/4497359/normal_5fc677a7d147a.pdf
    • http://jeseselanus.scienceontheweb.net/kezedirowenererituta.pdf
    • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/87a8f2707c.pdf
    • https://cdn-cms.f-static.net/uploads/4457561/normal_6041d07560486.pdf
    • https://cdn-cms.f-static.net/uploads/4381532/normal_602741419fde5.pdf
    • https://cdn-cms.f-static.net/uploads/4500665/normal_600ffbbfaee1b.pdf
    • http://select-get.top/novifuwexebutowifukolt6gkj.pdf
    • https://polerobozugewif.weebly.com/uploads/1/3/4/3/134344868/lumazeduzoxi_kazobalalinumek_bewumep_kugumifovikem.pdf
    • https://static.s123-cdn-static.com/uploads/4462350/normal_6008dd9a15b85.pdf
    • http://idem-peshkom.ru/manual_notebook_hp_elitebook_6930p_serviceztiqg.pdf
    • http://sewukagazub.mypressonline.com/general_electric_dehumidifier_adel70lrl2.pdf
    • https://static.s123-cdn-static.com/uploads/4488815/normal_5fe15f52f104e.pdf
    • http://good-production18.site/abstract_reasoning_practice_test_with_explanationuya28.pdf
    • http://prod-fruit.space/what_is_the_efficiency_of_a_heat_exchangerjo5bx.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dazovosugev/omron_plc_price_philippines.pdf
    • http://zerowegujij.onlinewebshop.net/525830819.pdf
    • https://s3.amazonaws.com/kovibu/cpe_tracker_template.pdf
    • https://s3.amazonaws.com/roxawo/mixiranovugunijubi.pdf
    • https://s3.amazonaws.com/fojaxexino/86253799942.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_off0000ea3c.bin
16567d8765e45d004e43ded86d3163f68ea3bbcc90e0376a8850fd610c3516e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3C 4828 bytes
font_01_sfnt_off0000fa9b.bin
ae2827994b81bfcd86af57a39953a12806bc54eae0a6aefd1657ecbdc0e9b23c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9B 11244 bytes

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