Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2ff6beac28cc03…

MALICIOUS

PDF

111.2 KB Created: 2021-03-06 20:44:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fc4d5d16a17f6bb2f8ed8cfb415bd3ba SHA-1: e8a539a4623a039506270bde72deb3f9c65f5ba5 SHA-256: 1e2ff6beac28cc03117fec4ea85fa604696f93f891b557f0daad74f064a231a9
166 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics as malicious, including a high-severity rule for suspicious link lures and ML classification. The embedded URLs and the PDF structure suggest an attempt to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the nature of the PDF and its embedded links strongly indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://fokemale.ru/wix?keyword=simplified+diet+manual+iowa PDF link annotation
    • http://idealicacolumbia.site/romofefesafagau2ar4.pdfIn PDF document text
    • http://jafoxidulez.mypressonline.com/4.3_mercruiser_carburetor_diagram.pdfIn PDF document text
    • http://twenty-promo2020.ru/facebook_play_store2tddu.pdfIn PDF document text
    • http://murimubijejaba.mygamesonline.org/67735741055.pdfIn PDF document text
    • https://kuzogirig.weebly.com/uploads/1/3/4/7/134748708/kolafesotibe-kubaji.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/gotax.pdfIn PDF document text
    • https://kuxodebareku.weebly.com/uploads/1/3/4/0/134042390/tusagen.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/jvc_digital_video_camera_gr-d340ek_charger.pdfIn PDF document text
    • https://tamoniwezetiro.weebly.com/uploads/1/3/5/9/135961995/643661.pdfIn PDF document text
    • http://fomijegi.mypressonline.com/71741531531.pdfIn PDF document text
    • http://springtea.space/flight_radar_24_gold_cracked_apk5dhfs.pdfIn PDF document text
    • http://itravelimpressions.com/braun_thermoscan_ear_thermometer_warrantye7k1n.pdfIn PDF document text
    • http://securitycheckingbrowservkcom.xyz/notary_acknowledgement_formxspyz.pdfIn PDF document text
    • https://bewevirat.weebly.com/uploads/1/3/1/4/131437926/ropuranika-xokuken.pdfIn PDF document text
    • https://gitiritibew.weebly.com/uploads/1/3/1/4/131483488/wazibed_pazikuf_rifojela_ravex.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/fasomusogapovi/present_perfect_tense_worksheet_year_3.pdfIn PDF document text
    • http://towupew.epizy.com/71416201885.pdfIn PDF document text
    • http://vopapatadape.epizy.com/funniest_kid_test_answers_infinite_lists.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/26255189194.pdfIn PDF document text
    • https://s3.amazonaws.com/podawakumepewez/aaru_movie_video_song_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/cisco_networking_tutorial_for_beginners.pdfIn PDF document text
    • http://kagiwabiluwotel.epizy.com/cristianismo_en_roma.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/how_long_do_g_shock_batteries_last.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/54120766830.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_off0001632a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1632A 5108 bytes
SHA-256: c3c73bd7fa0ea954a9f2a5111696daa806e5ade1e02797c6d01b0e5e41ded316
font_01_sfnt_off00017491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17491 11032 bytes
SHA-256: d4bc7f0072aaf9df545c7635403e473fd285540ebb13fa2a2895163916037410
font_02_sfnt_off00019a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19A37 16148 bytes
SHA-256: 1a2b76eb92621148de57a48589384f2ed1ce1add53d2a8f9a0414c0ea737f4f8