Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be4215627a745a9…

MALICIOUS

PDF

116.5 KB Created: 2021-04-01 22:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 3606baacaf159b7800158e60a7cd5868 SHA-1: 06289652b59ccd86dc6a00af431a2602effaa225 SHA-256: 2be4215627a745a97f8c7604d2dd1b33a12911303641d14823aa847f69e76c93
126 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs pointing to disposable hosting, suggesting a link farm or phishing lure. While no scripts were explicitly extracted, the presence of external URIs and the overall structure strongly indicate a malicious intent to redirect users to potentially harmful sites.

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://midufefew.ru/wix?keyword=old+believers+oregon PDF link annotation
    • https://ruzojewa.weebly.com/uploads/1/3/4/4/134437104/kagigozevemivedabu.pdfIn PDF document text
    • http://zumikavu.22web.org/runecrafting_guide_osrs_f2p.pdfIn PDF document text
    • http://jisijopimif.66ghz.com/jasper_bi_reporting_tool.pdfIn PDF document text
    • http://xesapuwax.mywebcommunity.org/bookkeeping_basics.pdfIn PDF document text
    • http://wetepuzasuvuroz.22web.org/44566860738.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/algebra_of_sets_proof.pdfIn PDF document text
    • http://bigever.iblogger.org/bajik.pdfIn PDF document text
    • https://jijixedo.weebly.com/uploads/1/3/1/3/131398351/4756374.pdfIn PDF document text
    • https://cdn.sqhk.co/temetixufuxi/jRWijhh/song_name_meaning_chinese.pdfIn PDF document text
    • https://simakaxulov.weebly.com/uploads/1/3/0/7/130738785/7481457.pdfIn PDF document text
    • http://zenajok.medianewsonline.com/10431349582.pdfIn PDF document text
    • https://witomoniwitu.weebly.com/uploads/1/3/5/3/135317652/7130048.pdfIn PDF document text
    • https://cdn.sqhk.co/biwizalibe/eHXgdEa/kepawerebete.pdfIn PDF document text
    • http://mofonuf.medianewsonline.com/attributes_of_effective_leadership.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/b5hijiS/the_time_traveler_s_wife_online_castellano.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kugofabafomozo.epizy.com/94119209708.pdfIn PDF document text
    • http://sodowurivav.onlinewebshop.net/what_happens_to_an_objects_kinetic_energy_as_speed_increases.pdfIn PDF document text
    • http://suvowafavij.epizy.com/usps_po_box_ps_form_1093.pdfIn PDF document text
    • http://viwukapatajomi.rf.gd/2660679657.pdfIn PDF document text
    • http://nigiragesowujow.epizy.com/smartest_guy_in_the_room_full_movie.pdfIn PDF document text
    • http://bexinoj.epizy.com/kidnap_2019_bengali_full_movie_720p.pdfIn PDF document text
    • http://nawezupuzevise.epizy.com/89945742500.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_off00017da4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17DA4 5008 bytes
SHA-256: 2013d7a80d97816e0263467ff95f2f1af11e8bea2b6a4b6d8a50dfe03354d95d
font_01_sfnt_off00018ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18EBC 17936 bytes
SHA-256: a65beb04adc951a70fe2cd4c91abb599f5a41eb1f3ab6ab169bcdee3869c3b09

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