Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c802f046388b1ee…

MALICIOUS

PDF

78.1 KB Created: 2021-02-23 11:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 76e4678d0085fe0357c2a9f1348b1704 SHA-1: 3f32634534a6f5b058ea54f3df73bba2beec3399 SHA-256: 1c802f046388b1ee5c97e9a6c77e5bd93c15139157ffc152a665e63b5ff0b3c0
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://yafferge.ru/aws?utm_term=how+to+study+for+airframe+and+powerplant+oral+and+practical In PDF document text
    • https://sijudunewofas.weebly.com/uploads/1/3/4/6/134696620/05dce00c40.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/jfrbOih/define_antonyms_of_nostalgia.pdfIn PDF document text
    • https://xozowozorero.weebly.com/uploads/1/3/2/6/132695390/mopigezevit.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwebobit/jejeczZ/mo_swords_mod_minecraft_pe.pdfIn PDF document text
    • https://vatawasuri.weebly.com/uploads/1/3/3/9/133997312/sixukotomeri.pdfIn PDF document text
    • https://cdn.sqhk.co/puvivefujef/hdXifjg/1960_s_rock_and_roll_music_artists.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/aQidges/jajubagudobazu.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/Dh36xib/xogunaxesevigituva.pdfIn PDF document text
    • https://xomepuwosabagef.weebly.com/uploads/1/3/0/9/130969083/gaxutaloloripekima.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/suxiweke/how_to_use_battery_calibration_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/4137873719.pdfIn PDF document text
    • http://pokazirajig.rf.gd/jeteb.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/kabumakezarabozi.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/bhaiaji_superhit_movie_300mb.pdfIn PDF document text
    • http://terexibuf.epizy.com/xbox_live_gold_card_code_scratched_off.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/barcelona_vs_villarreal_4-_4.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/android_based_attendance_management_app.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/76699155274.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_off0000f09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF09A 5456 bytes
SHA-256: d232c939f8e0d9dbf6a5987657a048c0ff834df535f0153ee38a5f0786754e8f
font_01_sfnt_off0001032a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1032A 11620 bytes
SHA-256: f9236797041f78f50e85934394204d3e12329bbc3b4bab2da54246136243f383

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