Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fdcc5965a52331c…

MALICIOUS

PDF

66.6 KB Created: 2021-03-29 20:21:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 06f9b30c29e709c3454423f5c58ee9e1 SHA-1: 084ef97e5de57ca1ff3d08e160729c49afd1bd69 SHA-256: 5fdcc5965a52331c64dded8549dc78cab7d2917549b8a3c0f850a68f11c5ba36
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests it functions as a link farm, directing users to multiple potentially untrusted domains. While no scripts were explicitly extracted, the presence of numerous embedded URLs points towards an attempt to redirect users to phishing or malware hosting sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mavuzoxawajike.weebly.com/uploads/1/3/0/9/130969593/21b4b.pdf In PDF document text
    • http://budivabod.iblogger.org/fibaduwimijo.pdfIn PDF document text
    • http://watutuwox.iblogger.org/55099307300.pdfIn PDF document text
    • https://wewopamutufufo.weebly.com/uploads/1/3/1/3/131398135/zelisiguxexuro_nexubupivexi.pdfIn PDF document text
    • https://cdn.sqhk.co/lufelumad/jbidIDJ/how_to_make_knife_glasses.pdfIn PDF document text
    • https://wotapidedodibi.weebly.com/uploads/1/3/4/4/134475573/59931cd5c91b3.pdfIn PDF document text
    • https://cdn.sqhk.co/tesikotuk/hfjcZKM/major_league_baseball_shop_nyc.pdfIn PDF document text
    • https://tisuzozolida.weebly.com/uploads/1/3/6/0/136087901/5d60f2969ab0a79.pdfIn PDF document text
    • http://detonic-ufficiale.website/profiles_in_courage_john_f_kennedy_sparknotes09gtt.pdfIn PDF document text
    • http://goodsun.fun/constitution_scavenger_hunt_answer_key_ap_government4quuh.pdfIn PDF document text
    • https://nusupubibirimu.weebly.com/uploads/1/3/1/8/131871553/mibuwog.pdfIn PDF document text
    • https://pasezarovatif.weebly.com/uploads/1/3/4/8/134858127/xinugegitosilipog.pdfIn PDF document text
    • https://tesebajaja.weebly.com/uploads/1/3/4/4/134402558/4595224.pdfIn PDF document text
    • https://bufitalusiwe.weebly.com/uploads/1/3/2/6/132682607/pusubabusuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/bVCGPfG74RQ/wb?keyword=sharp%20el-1197piii%20repairPDF link annotation
    • https://uploads.strikinglycdn.com/files/a6665a87-222d-4f41-b323-15d71e03932e/behind_the_formaldehyde_curtain_rhetorical_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d147630-a874-4889-a598-31a97856c90e/27915791163.pdfIn PDF document text
    • http://mujupav.epizy.com/attack_on_titan_2_final_battle_ocean_of_games.pdfIn PDF document text
    • http://tejujusaruke.epizy.com/how_to_replace_diaper_genie_carbon_filter.pdfIn PDF document text
    • http://tekojexabutixas.epizy.com/jimezumanurotakizog.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_off0000c8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C9 5152 bytes
SHA-256: 8e04dc07015a1b0cf654e4b48e8b8234ad58ffcbf40da2530dfd1c342769306a
font_01_sfnt_off0000da5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5F 10316 bytes
SHA-256: f33a8e5bd172361948ce14809ff1fe95b2d45cfad49cd85106488f89c596eb30

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