Malicious PDF — malware analysis report

Static analysis result for SHA-256 713d3930e9d8f031…

MALICIOUS

PDF

175.8 KB Created: 2021-03-30 08:12:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c51a01d103078046b8a98e747a6c3dd2 SHA-1: da2337481eccda5fd9560cb64a2e813cdd450129 SHA-256: 713d3930e9d8f031e804af72e7b0efb3dbda8936f03591cee4ed92d15c72743d
104 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 presence of embedded URLs and a heuristic firing for a download button suggests a phishing or social engineering attack. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards an attempt to trick the user into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9269

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://mezovuduw.ru/award?keyword=roman+catholic+bible+in+english+pdf+free+download
    • https://cdn.sqhk.co/lunilageruvu/n9gh4es/powerpoint_templates_free_microsoft_office.pdf
    • https://womegirig.weebly.com/uploads/1/3/4/5/134506381/7732223.pdf
    • https://static.s123-cdn-static.com/uploads/4366040/normal_5ffb8bf55beae.pdf
    • http://niwizonoleror.mywebcommunity.org/how_to_get_an_autopsy_report_online.pdf
    • https://wugoxuvalego.weebly.com/uploads/1/3/4/0/134017666/460443.pdf
    • http://sepukolobu.sportsontheweb.net/bonejitaze.pdf
    • https://cdn.sqhk.co/negolura/bjbTMuq/bonemapikilud.pdf
    • https://cdn-cms.f-static.net/uploads/4373992/normal_5fdc1a1e46b74.pdf
    • https://tapukinag.weebly.com/uploads/1/3/1/6/131606864/870405.pdf
    • https://pepazabam.weebly.com/uploads/1/3/4/6/134625160/cebe91d94050f.pdf
    • https://cdn.sqhk.co/ninevowa/idbjjie/simple_gantt_template.pdf
    • http://bibopasaxuvibu.mypressonline.com/project_budget_planning.pdf
    • https://cdn.sqhk.co/migukosodaza/Qkihhd1/secret_codes_for_netflix_christmas_movies.pdf
    • https://sazezikamujut.weebly.com/uploads/1/3/1/4/131438312/davudubudiwi.pdf
    • https://cdn-cms.f-static.net/uploads/4410459/normal_5fe6a600e67cd.pdf
    • https://cdn.sqhk.co/xolofiwano/ijyhcjb/naval_storm_td.pdf
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://4b523d79-2bc6-404f-8e52-0acae4d2cb03.filesusr.com/ugd/fe1b41_09b42a2f212943fea536529ab5609d79.pdf?index=true
    • https://74df6fe0-557b-4e47-8461-f2df536053d0.filesusr.com/ugd/4dcf4e_564feed0fb0940dd86a6dbedbe96e338.pdf?index=true
    • https://80ce5912-1c67-4773-adf4-abf614566e91.filesusr.com/ugd/acb48a_e7672ce8eab44d869ea2938ba1bdaa2e.pdf?index=true
    • http://gurabagoderes.atwebpages.com/would_work_better_synonym.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00020f9b.bin
8247b52dc79e9191731e9392d2fe92b261bf25504c6dd68759643281263c2ae3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x20F9B 14260 bytes
stream_007_off00023137.bin
a67c2a680dd61f1b3b61684e2533ee8993249ebc1d9f24a485c9b8b1103019f2		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x23137 2620 bytes
font_00_sfnt_off0001f089.bin
679915045522cfe64319d4c2eb13d2078fd91f6b30ea465a519966d5b9c18412		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F089 3212 bytes
font_01_sfnt_off0001fbf0.bin
8ff732592d916d7f99e1ebd34e495498ee57d2b11e66b8420102f4fdbe2a7c37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1FBF0 5808 bytes
font_04_sfnt_off00023cd5.bin
bf3e066f2988229f6fa496d79f0f64fc444f86bc9013f02d6e2215ae3d72217a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CD5 5000 bytes
font_05_sfnt_off00024e79.bin
4508a6de97c7aeb8e5cded463e34d9601b13ecae2372e312cf469e761eec2be3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E79 14420 bytes
font_06_sfnt_off00027cb4.bin
e6523331b99ee395351724382b024c553c20d0a6f2b5c627e0b8dacefd1ff87e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CB4 16272 bytes
font_07_sfnt_off00029256.bin
e403d5c6d59873b8748cc7ec175caa2fc3368c2fd1914a7774545cf1266e72f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29256 8348 bytes

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