Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e6a5a0024e281b…

MALICIOUS

PDF

109.2 KB Created: 2021-03-14 19:34:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0d253e57ffb0ecf20d5a7e8e092a7ce0 SHA-1: f65bc901024ae77d5f7b63379d077def3a3982fc SHA-256: e0e6a5a0024e281b6e357e0e0fdcb9d240df1362ca7da91358e273fe66667493
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ClamAV as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to map projections, directing users to a malicious URL. The presence of external URIs and the ML classifier's high confidence score indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://xezojetit.ru/strik?utm_term=what+is+map+projection+and+its+classification PDF link annotation
    • https://cdn.sqhk.co/dugelabomaw/hhej0gi/big_sharks_fish_and_chicken_decatur_il.pdfIn PDF document text
    • http://wide-do.top/999732104107rgu9.pdfIn PDF document text
    • http://kinatoguvekajux.22web.org/sony_multi_channel_av_receiver_str-dn1050_manual.pdfIn PDF document text
    • https://sipavokipepino.weebly.com/uploads/1/3/4/3/134330850/buxotiluduxure-xezer.pdfIn PDF document text
    • http://fuziral.iblogger.org/givisoxesutilez.pdfIn PDF document text
    • https://womijepadake.weebly.com/uploads/1/3/4/4/134476187/mavusivaraja.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/JhaYnfE/swing_design_picture_frames.pdfIn PDF document text
    • http://kazedoruredupe.22web.org/jack_and_the_beanstalk_short_story_for_toddlers.pdfIn PDF document text
    • https://kamupusinupe.weebly.com/uploads/1/3/4/6/134691545/f2324.pdfIn PDF document text
    • https://cdn.sqhk.co/kinubowa/irghuZV/falixis.pdfIn PDF document text
    • https://vujalonekodi.weebly.com/uploads/1/3/2/7/132712286/3511281.pdfIn PDF document text
    • http://kanshoper.site/xidojesapotta3h.pdfIn PDF document text
    • https://cdn.sqhk.co/jurugaguvedu/z1WkhjQ/43831635560.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/8VjihaE/bein_sports_tv_guide_usa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kisopazagutux.rf.gd/43310509515.pdfIn PDF document text
    • http://sejojoxo.epizy.com/sakhi_tamil_movie_songs_free.pdfIn PDF document text
    • http://wolaniloko.epizy.com/48945391440.pdfIn PDF document text
    • http://raxusitusumulag.rf.gd/denuvavobodu.pdfIn PDF document text
    • https://d6b7b3c7-8429-4d82-9d75-5d5d09e763cc.filesusr.com/ugd/a8c229_5a3f91fd2cc846e8b77b312f95d5d592.pdf?index=trueIn PDF document text
    • https://645c32c3-7e99-4959-b93b-7980205539d7.filesusr.com/ugd/30a31c_5134db03cd794fd093cd0b9116402d3b.pdf?index=trueIn PDF document text
    • https://dfa52777-3edb-460f-9b14-ca5101cd4ecc.filesusr.com/ugd/5360f8_4ddf74e451764c6894f5d13598162a11.pdf?index=trueIn PDF document text
    • http://vofofoduwegakuv.rf.gd/new_audit_report_format_in_word.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_off00016bf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BF1 5484 bytes
SHA-256: c96f67e370b5917f60909955183e4225310819d19bd39ebfc502878cac2f5f02
font_01_sfnt_off00017e7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E7A 12008 bytes
SHA-256: cad1eb1dba703e8a734beebdd21c3817e649900c3b1f3fd439d20822b1b3a645

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