Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfc7e2a468341486…

MALICIOUS

PDF

85.9 KB Created: 2021-04-29 02:46:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 663532b3c8bb5eb5c53bbe5b14f71cf3 SHA-1: a7af7553dec0df40881fc1efc7676189a996888e SHA-256: dfc7e2a4683414868b253c7e74159637304fb0ffc72c4b5c170f672efbe7d723
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://jumiwimov.ru/strik?utm_term=fanuc+robot+simulation+software+free+download PDF link annotation
    • https://cdn.sqhk.co/vunebapenuj/rC84Kja/icreate_pony_maker_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/duwenaxiseve/aiihjhb/splendora_cafe_and_bbq.pdfIn PDF document text
    • https://verijijul.weebly.com/uploads/1/3/4/8/134861220/wiwepube_zonokuv.pdfIn PDF document text
    • https://takixesa.weebly.com/uploads/1/3/4/6/134621412/domanosigajojaf.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/Qhgxdgc/41524658787.pdfIn PDF document text
    • https://woperuxotuxolo.weebly.com/uploads/1/3/4/8/134849923/paxetejotew-vofutasaro.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/jihjeiv/sword_art_online_character_maker.pdfIn PDF document text
    • https://cdn.sqhk.co/divekezor/ZxZlxYg/sevelupufavulepilol.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/cQmicZj/rotunazemifizezewunebut.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/hUgibjj/37227633140.pdfIn PDF document text
    • https://varanikugeju.weebly.com/uploads/1/3/4/6/134640125/8142329.pdfIn PDF document text
    • https://cdn.sqhk.co/wabajevebe/jaLjbgi/febisilalulaj.pdfIn PDF document text
    • https://cdn.sqhk.co/betarudigi/Wjcicha/doom_movie_review_metacritic.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/fofeguj/astro_a20_xbox_one_wired.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e5fb05f-c5ea-4eae-a1bc-fb6d59ebf45c/my_pet_dog_essay_for_class_4.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/zojazixapagixawuxaka.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/balance_druid_leveling_guide_classic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c07d0bf-a7d7-4e9d-99f4-f2eaa4746607/xebasesebukevagakevet.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/aarambam_audio_songs_tamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d08c9d5-fbfb-45fb-928b-f28bfbef26eb/ff7_remake_colosseum_guide_hard_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/adventures_of_tarzan.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/wugimonixijodexuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40d48d18-600a-459e-9f33-5610fc7986b4/casio_pro_trek_wsd_f30_vs_f20.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f59f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF59F 3376 bytes
SHA-256: f18f4f197a5b6c6802388241fb12a629e1c6c78c7105b81d64b6b90ab99ae501
font_01_sfnt_off000101ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101AB 5356 bytes
SHA-256: c8ea2064f6799f2b4d0e9d8b9bb8a38fa15c5f30afc4e024178e0318c55f9589
font_02_sfnt_off000113d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113D1 1640 bytes
SHA-256: e2a8cf3ae90b9a82ebf0add2d91a9d1ec9768ccc63ce40db21e7dac6586adc8c
font_03_sfnt_off00011c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0E 14220 bytes
SHA-256: 9af247381c8e020f71479dd7d4aa775f30d9612960a34d8cd51da50c15bb67ca

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