Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d298da2afdb8ef…

MALICIOUS

PDF

90.9 KB Created: 2021-03-31 05:12:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1df5b471337e9770c7789bb5480d6e5 SHA-1: e2f29bb31cc9e4678bfafbf49215263f09d1757f SHA-256: 76d298da2afdb8ef7abea726aea62009916ecc1f0574c2fcc03d7bd6bd89854f
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/wix?keyword=strike+force+heroes+3+unblocked+hacked
    • http://harmony-market.ru/what_eastern_philosophyjkx24.pdf
    • https://puwikemumej.weebly.com/uploads/1/3/1/4/131454306/5732697.pdf
    • https://zobojosapez.weebly.com/uploads/1/3/1/4/131483592/jiwop.pdf
    • http://idealicaitaly-ufficiale.site/rayman_adventures_keine_incrediballsf5iam.pdf
    • http://vashastrahovka24.ru/94370178192ol47t.pdf
    • http://amsidgi.xyz/nemurowalec5r.pdf
    • https://datugabow.weebly.com/uploads/1/3/4/7/134745554/pojifo-mosomimidurepo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0926596c-b1e6-4473-87d6-fed2e709bfeb.filesusr.com/ugd/e2a635_b7973a4d085140298729f3b055f5ce93.pdf?index=true
    • https://9849c7ec-8b19-4b81-9a64-db2537ea7c40.filesusr.com/ugd/97b1c0_d6fc0316eb284696abc54535309f18ed.pdf?index=true
    • http://bopexetosezulav.rf.gd/southern_cross_care_wa_annual_report.pdf
    • https://uploads.strikinglycdn.com/files/d034b890-9a43-4fe4-b549-b8d653732569/how_to_day_trade_for_a_living_bryan_lee.pdf
    • https://s3.amazonaws.com/sazixipame/consignment_stores_for_formal_dresses_near_me.pdf
    • https://s3.amazonaws.com/juvetaso/steam_api._dll_pro_evolution_soccer_2016.pdf
    • http://dumiramuji.rf.gd/14759805906.pdf
    • https://uploads.strikinglycdn.com/files/00d60c4f-a6bb-4f07-b46c-0ca7735e1b28/how_to_use_maverick_thermometer.pdf
    • http://teladanizuv.rf.gd/32646122988.pdf
    • https://uploads.strikinglycdn.com/files/7edc4db6-f928-4e08-8ba2-eebf635278a8/48172512412.pdf
    • https://uploads.strikinglycdn.com/files/eadf7760-18fe-4d76-b6d9-d5b124a5330d/tejis.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_off00012597.bin
fce52430bf4835d3ae9814e5c2c0de3cf0f8344280ab2b517d016849635e59d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x12597 5580 bytes
font_01_sfnt_off0001388e.bin
e76c52d530ac624ef8f376b2fdd202e8e626f84a9338395a29d1371e4b42ce8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x1388E 11168 bytes