Malicious PDF — malware analysis report

Static analysis result for SHA-256 af93a2045186967a…

MALICIOUS

PDF

75.3 KB Created: 2021-03-15 00:51:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82c36d223701c9c2d3735a839838d7e4 SHA-1: aa581903106a71d74a31ad57166029942e5eeb18 SHA-256: af93a2045186967a2862740eb78e51773015a06944ac6d86f97b0430b2651c0c
156 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific URL pointing to a 'descargar minecraft pe 17.0 apk' lure, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via the embedded links. No scripts were extracted, but the PDF structure and embedded URLs are sufficient to infer a malicious download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=descargar+minecraft+pe+17.0+apk
    • https://cdn.sqhk.co/sevalaturi/ejjIid2/46852310723.pdf
    • https://cdn.sqhk.co/wanevakaxuma/Egcijig/gikexeregesokeli.pdf
    • https://latopilufazi.weebly.com/uploads/1/3/4/0/134017217/komaromasoj.pdf
    • http://wugafis.66ghz.com/58590867080.pdf
    • https://cdn.sqhk.co/wiwuwigo/chjwZhf/bogomupirezamigo.pdf
    • http://zelumefepa.sportsontheweb.net/assassins_creed_forsaken_espaol_descargar.pdf
    • http://gamowenugeg.sportsontheweb.net/kaxaselibulazenobilov.pdf
    • http://gifagudilul.mypressonline.com/criminal_law_book_1_estrada_free_download.pdf
    • https://cdn.sqhk.co/reserujaj/aiiify1/real_offroad_simulator_3d_2020.pdf
    • http://bujaxodu.iblogger.org/attention_deficit_hyperactivity_disorder_test.pdf
    • https://fitepavi.weebly.com/uploads/1/3/4/4/134485464/vitemejuz.pdf
    • https://cdn.sqhk.co/nezerozara/hdjdSEb/63256096980.pdf
    • http://viniveba.mywebcommunity.org/genie_intellicode_chain_glide_gcg350l_manual.pdf
    • http://wotedogupowu.sportsontheweb.net/non_renewable_energy_definition.pdf
    • https://gupolapi.weebly.com/uploads/1/3/4/6/134629895/kadujufafi-kajafufax.pdf
    • https://xavujome.weebly.com/uploads/1/3/0/7/130739328/4ee1203f9e5660.pdf
    • https://cdn.sqhk.co/numexerab/XgfG4Su/extent_report_in_testng.pdf
    • https://cdn.sqhk.co/nobipajami/gdEjhjg/terrestrial_ecology_study_guide.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://karifopiti.epizy.com/diary_of_a_wimpy_kid_movie_4.pdf
    • http://vusanaxipunuli.rf.gd/carruthers_organic_chemistry.pdf
    • http://kedokonox.rf.gd/android_manifest_network-_security-_config.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e43e.bin
00281132fae21a71003eb48d6ed02002c871ca7ce292aa4d729f0de4d1572050		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE43E 5672 bytes
font_01_sfnt_off0000f79c.bin
9ac110d48c1e935e02730bd10c73a7b8285e5bd4e92ebc3270ca32aedfcf3e66		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF79C 11584 bytes

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