Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a145bddcafa3b32…

MALICIOUS

PDF

79.9 KB Created: 2021-03-29 23:19:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b680875abfa4bbd93b21fb072dc3f0c2 SHA-1: 5543a389ac1eccd13c3c80b78601d5f12f69ae0a SHA-256: 1a145bddcafa3b328a74a45750ee35f1004eb3187019c2c5182dd30e1c00c3a0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://xezojetit.ru/strik?utm_term=secrets+of+the+baby+whisperer+tracy+hogg+pdf', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to reference the lure used in the URI.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xezojetit.ru/strik?utm_term=secrets+of+the+baby+whisperer+tracy+hogg+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387050/normal_603c1886b0912.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413719/normal_603751a15df1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486521/normal_60596883d8d27.pdfIn PDF document text
    • http://tasigezagu.scienceontheweb.net/31507684751.pdfIn PDF document text
    • http://puloxev.iblogger.org/bringers_of_the_dawn_teachings_from_the_pleiadians.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420748/normal_5feccdc76201f.pdfIn PDF document text
    • http://rinujajija.getenjoyment.net/tiduwisoxok.pdfIn PDF document text
    • http://palupalukagu.mygamesonline.org/kinipewi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369504/normal_6015ee511d731.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369163/normal_5fe38a5ed0763.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487409/normal_5ffe9850ac086.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488346/normal_5ff7ed9e3814d.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/dogevazapiwediw/92322282347.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/ford_mustang_convertible_us_rental.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/zotawonivofizupedew.pdfIn PDF document text
    • http://kuzezoma.epizy.com/70651432146.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f654f025-11b2-46b4-abaf-7aae7c3e0813/dell_latitude_d830_ram_specs.pdfIn PDF document text
    • http://zitasixan.atwebpages.com/what_is_the_cost_of_starbucks_coffee_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/avast_antivirus_license_key_free.pdfIn PDF document text
    • http://dunasiru.rf.gd/34567258024.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/shia_islamic_books_free_in_urdu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a5b8037-f163-4c2e-9de0-bef2617ed5ff/section_212f_of_the_immigration_and_nationality_act_of_1952.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e44a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE44A 5824 bytes
SHA-256: 5b0302032b8bd2fb226040319f83ac2e2f62225ec27dd4537c4f43da5af424fb
font_01_sfnt_off0000f82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82B 10528 bytes
SHA-256: a709f6a6510dde16cc44c59f5c463c9428ddf69cab9a8cfbf4a406f0e8546cb4
font_02_sfnt_off00011c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C8D 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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