Malicious PDF — malware analysis report

Static analysis result for SHA-256 7573e9ffec917885…

MALICIOUS

PDF

70.7 KB Created: 2021-01-19 01:45:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 63ae69d87c7762d389b91463e2677ad2 SHA-1: 91dec8e502ba7c23755a872ee40704f10ae031ea SHA-256: 7573e9ffec9178855aaa2a1b094f6fb5d85ba9b17f93695415ebcfce320faf22
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This URL is likely used to redirect users to a phishing page or to download a secondary payload. The ML classifier also strongly indicated maliciousness, and ClamAV detected it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=ppsspp+gold+apk+download+aptoide In PDF document text
    • https://site-1176998.mozfiles.com/files/1176998/amusement_park_vocabulary.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527164/normal_5fc177226cd7e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374953/normal_6004a79155c5c.pdfIn PDF document text
    • https://site-1177531.mozfiles.com/files/1177531/dapujuwadufakef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415331/normal_5faf8ca696d43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418783/normal_5fb5a8aa5c443.pdfIn PDF document text
    • https://site-1177769.mozfiles.com/files/1177769/buddy_toss_hack_version.pdfIn PDF document text
    • https://site-1171458.mozfiles.com/files/1171458/all_star_soccer_academy_orlando.pdfIn PDF document text
    • http://bubuwem.iblogger.org/67657043297.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vegunag.rf.gd/anjali_ka_gana_video.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/white_arborite_sheets.pdfIn PDF document text
    • http://kepipejesa.epizy.com/xiwadobibofojo.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/29483809301.pdfIn PDF document text
    • http://garapaf.epizy.com/hepatic_hypodensity_adjacent_to_falciform_ligament.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/alice_in_wonderland_soundtrack_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/cvc_words_games.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/add_splash_screen_android_kotlin.pdfIn PDF document text
    • http://mojilobopage.rf.gd/49380982059.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_off0000d4c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C0 5188 bytes
SHA-256: a43a28cbef0364614f6c5d1f84d0a94dd989ed031dc030624cbc7ba1e787f274
font_01_sfnt_off0000e68e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68E 10948 bytes
SHA-256: 3951aa581b428cfc26de07025312d4501983a553a4d8d1f6a2b179472f88c9f8

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