Malicious PDF — malware analysis report

Static analysis result for SHA-256 c125d26d29e2dea2…

MALICIOUS

PDF

86.4 KB Created: 2021-03-29 04:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d10ee12f2af088ae7791c2f5ae7eeb55 SHA-1: 6260c63ba8d107585126419b917c9dad060f6409 SHA-256: c125d26d29e2dea2fadfea1f2b93cd4aa3d452f89a89e97dc7e0e275119675a3
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL leading to a "gems hack" lure, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI indicate a malicious intent to redirect users to a potentially harmful external site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 4

  • 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://maypoin.ru/wix?keyword=azur+lane+gems+hack
    • https://cdn-cms.f-static.net/uploads/4502246/normal_60282c009cceb.pdf
    • http://topsol.xyz/92170898982i674c.pdf
    • https://static.s123-cdn-static.com/uploads/4368976/normal_5fe0ef9a4a2fd.pdf
    • http://5-euro.info/nafuzunefidt7wt.pdf
    • http://maxirem.mygamesonline.org/judofajevuke.pdf
    • http://trokot-shopnew.online/ripebovuzomufi3nh5.pdf
    • https://cdn.sqhk.co/ratevusur/jfXtv45/should_i_answer_app_review.pdf
    • http://ritual-venki.online/69892560322vt7o6.pdf
    • https://cdn-cms.f-static.net/uploads/4451220/normal_60446d508a28e.pdf
    • https://cdn.sqhk.co/midipijikami/jaQjRgc/folozapivutidef.pdf
    • http://znakomstva18x.site/vifigenewinuxojogagoboyqdc2.pdf
    • http://fejukoturig.medianewsonline.com/assert_50_mg_bula.pdf
    • https://cdn.sqhk.co/fipexuwebo/Kihchic/game_insaniquarium_full_version.pdf
    • https://cdn.sqhk.co/tipefimex/XHLji5x/72155041753.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vavale/anganwadi_supervisor_form_in_delhi.pdf
    • https://s3.amazonaws.com/xalasawu/which_of_the_following_atoms_has_2_valence_electrons.pdf
    • https://s3.amazonaws.com/jadere/92106578266.pdf
    • http://juborekif.atwebpages.com/heart_of_darkness_themes_explained.pdf
    • https://uploads.strikinglycdn.com/files/c4a5a4da-ec7f-419f-94f3-a34a5dc9c7ea/bose_companion_3_vs_5_comparison.pdf
    • https://s3.amazonaws.com/dojivewobasuval/how_to_enter_the_court_of_heaven.pdf
    • https://uploads.strikinglycdn.com/files/5ac3f099-39e3-4c35-91df-3d6a6b5383dd/vosowesugi.pdf
    • https://s3.amazonaws.com/wurivuve/android_network_may_be_monitored.pdf
    • https://uploads.strikinglycdn.com/files/b030f7fa-7b29-4c18-8297-22785af786e2/17220139121.pdf
    • https://uploads.strikinglycdn.com/files/ae8857e8-2ad1-4b39-8473-4db332b6f7bc/84435393548.pdf
    • https://uploads.strikinglycdn.com/files/59b0e468-145b-4168-8817-8cbe4ee843d0/61267054714.pdf
    • http://solezod.myartsonline.com/litowakaleziwab.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_off00011015.bin
cc1a9f3d69679f93b98420ddfd104fec85dc246cc3353dbb629cd4d0eee74cb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11015 5316 bytes
font_01_sfnt_off00012208.bin
936f127789ad67b9f5f0ebf359882fa7ae5dbcfdbcc1070ed0d9be32b286449e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12208 12208 bytes

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