Malicious PDF — malware analysis report

Static analysis result for SHA-256 41019f2f07641331…

MALICIOUS

PDF

76.2 KB Created: 2021-03-17 15:57:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66b510764bb3e745c6f307e09493f826 SHA-1: 39a29f83a7f9e2287d10a2e8e5a9762eeb6151ed SHA-256: 41019f2f076413318441fc958528c3340ddb523cdba40c9040f66d3b5376fbc1
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely used to host a malicious payload or phishing content. The document body, though partially corrupted, suggests a lure related to a 'worksheet'. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=main+causes+of+world+war+1+worksheet
    • http://hangzhoumetal.ru/nabojosalunavadabiyebhz.pdf
    • https://cdn.sqhk.co/worijekegir/hdDjgih/vikin.pdf
    • https://static.s123-cdn-static.com/uploads/4391001/normal_5ff67217c5d39.pdf
    • http://nitanupemil.mygamesonline.org/moon_river_lyrics_frank_sinatra.pdf
    • https://cdn.sqhk.co/vajirasavuz/bFwid1L/halloween_decorations_sale_target.pdf
    • https://cdn-cms.f-static.net/uploads/4485299/normal_60143d0c2c6e6.pdf
    • http://sevibifodome.getenjoyment.net/adapted_physical_education_and_sport.pdf
    • https://cdn-cms.f-static.net/uploads/4469386/normal_600fb57e85174.pdf
    • https://cdn-cms.f-static.net/uploads/4486051/normal_60188b333ee2f.pdf
    • http://relax35.ru/dojapupriiet.pdf
    • http://olivamebel.com/hcg_diet_planedrrz.pdf
    • http://femonejigajape.mywebcommunity.org/pidesisizepebepamu.pdf
    • http://magnetfix.store/the_devil_wears_prada_cast_miranda_priestly5qcfu.pdf
    • https://cdn.sqhk.co/feduvefas/ibIhfuY/66617856211.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://6e229dea-1f83-4be8-8cd3-388eabd4f5e3.filesusr.com/ugd/1cfe37_43dd900b9a994958842827ab2556302b.pdf?index=true
    • https://95fbbc11-640f-4658-acdf-6e09da746871.filesusr.com/ugd/e42ee3_c86ade99416c48d2b4268a8c3fc75fea.pdf?index=true
    • http://pozijawikubinun.myartsonline.com/xuvefapuxabutokunin.pdf
    • https://13ea8442-998f-4f14-ba3b-7f37e53a414c.filesusr.com/ugd/008a9f_7f521ed17c8c41ed9a9880e9a8604051.pdf?index=true
    • https://ba739632-11db-41f7-a023-683a20e55d36.filesusr.com/ugd/99835b_b66b98dba7d44c79a29a75c93fab117f.pdf?index=true
    • https://780c8f77-0f51-49ab-8dd1-60a90eb210a4.filesusr.com/ugd/1b8612_bcbef3c31bfd4181a3ce5bdff4b94bb9.pdf?index=true
    • https://5c2cca0d-3a4e-48b0-93bf-8ac6c0c026cb.filesusr.com/ugd/271e65_5466a41f21cb49018f17b311ba71a07a.pdf?index=true
    • 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_off0000ed74.bin
411f77116e6adcf8f9960f8b54fc447624fd285a667b3dc7b75d7ec57f131bcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED74 5320 bytes
font_01_sfnt_off0000ffac.bin
aa55a966b45a9d32c1fb3a507fd640ebf27912bc498302e7791eedf2cee5b088		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAC 10572 bytes

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