Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae8769800970306…

MALICIOUS

PDF

91.2 KB Created: 2021-03-31 09:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6edac96255377b52faaab50cacf56598 SHA-1: 158c989346f44580d80f45f51efeb026954761bd SHA-256: 9ae876980097030618c328aed6d4cd2acf0620462476c1ccadce69158426bc21
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, suggesting it's part of a link farm designed to direct users to potentially harmful websites. The primary malicious activity observed is the embedding of numerous URLs, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 5

  • 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.
  • 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://vilenefex.ru/strik?utm_term=super+mario+land+2+dx+pre+patched
    • https://kasikijafeke.weebly.com/uploads/1/3/1/4/131406722/pazolaf.pdf
    • http://getsol.xyz/honda_eu2000i_oil_change_intervaldhjwo.pdf
    • http://1xbet-sportstavki.fun/motorola_xpr_6350_rangehkyw9.pdf
    • https://sezibuginodeso.weebly.com/uploads/1/3/4/4/134470526/xawajame.pdf
    • https://sedovabopidixo.weebly.com/uploads/1/3/0/8/130813108/4a7cb6.pdf
    • https://xepesirivow.weebly.com/uploads/1/3/1/4/131408502/vejiwuloja-masexatalanu.pdf
    • http://copyright-notice-ig.com/508021107062mee7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://36622f5a-5a1b-41a5-aa98-965156e47ac2.filesusr.com/ugd/804ff6_f528237d76684bdcba83a3cb2694814e.pdf?index=true
    • https://s3.amazonaws.com/xepululejiwof/19675413670.pdf
    • https://30b7a97f-6117-4fff-8876-4b3c2220b6c6.filesusr.com/ugd/15cd4d_fe40277b7935433591423ec56d455150.pdf?index=true
    • http://zijuzul.epizy.com/5_day_per_week_bible_reading_plan.pdf
    • http://gamutazuzores.epizy.com/whirlpool_cabrio_platinum_gas_dryer_not_drying.pdf
    • https://s3.amazonaws.com/savukojubusum/38028629385.pdf
    • https://uploads.strikinglycdn.com/files/172e9ea0-f62e-421a-9da3-cc91f7845996/prescription_for_natural_cures_third_edition.pdf
    • https://uploads.strikinglycdn.com/files/bdbd232d-cdfb-4180-8e2d-32b52148fd6b/vizisazagisisut.pdf
    • https://6f12065f-c45d-410c-b048-6ec23fb2b810.filesusr.com/ugd/02ccf7_04ed927037234359be25ef2ad8b8436c.pdf?index=true
    • https://2703069b-a6ff-4ff9-983c-db139a8d76ba.filesusr.com/ugd/8b61cf_1f3321389f7b4139875524103e6a36fe.pdf?index=true
    • https://s3.amazonaws.com/napoledunadigo/integrated_math_3_answer.pdf
    • https://s3.amazonaws.com/muwemivumazulax/what_food_has_the_highest_ph.pdf
    • http://rarezutawuwelam.epizy.com/harvest_moon_skytree_village_animal_guide.pdf
    • https://s3.amazonaws.com/suzixegazunow/70538717987.pdf
    • https://uploads.strikinglycdn.com/files/082fb018-5ec3-4e84-b180-59cab7a0c8d1/ditabuzukexewapafumamip.pdf
    • http://tejugezefufuli.rf.gd/68603065220.pdf
    • https://uploads.strikinglycdn.com/files/42caba5a-bea8-4241-82ba-65b6fdccbd6e/what_is_estimation_model.pdf
    • http://ripitajibewejuv.rf.gd/barnaba_new_song_ukiachwa_achika_audio.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001125b.bin
436140a7cdf7cf88b7544b84fbc9e68240aee45bd2fe60329ba7fcf1694d5383		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1125B 5312 bytes
font_01_sfnt_off000124e0.bin
c36609bba0e2d66fd68aacd3a9dc452fa40eda90627bdecc0d73fd633704e957		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124E0 5440 bytes
font_02_sfnt_off00013733.bin
62f162cd861192b299033713829fa2984b016a819d90bead6de1b26a8ced60e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13733 11956 bytes

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