Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5a65fc4788ae98…

MALICIOUS

PDF

78.1 KB Created: 2021-04-05 04:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f22ab549c4f84e10c6b33ac33cdb9d6b SHA-1: 2896fb3c751bafaae093c8a7bbfff979fc8659ed SHA-256: 6e5a65fc4788ae98b40d4d2cd74fd4a198d08aa402787a891cff240c83e1fb08
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains keywords related to 'dual citizenship' and is associated with an external URI pointing to 'soxebez.ru'. This suggests a phishing or scam attempt to trick the user into visiting the malicious URL.

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://soxebez.ru/wix?keyword=viet+kieu+dual+citizenship
    • https://cdn-cms.f-static.net/uploads/4453118/normal_60660c3168198.pdf
    • https://cdn.sqhk.co/gasubapo/aighfet/wildlife_park_wild_creatures.pdf
    • http://lunatan.medianewsonline.com/jilenuze.pdf
    • https://static.s123-cdn-static.com/uploads/4502870/normal_5fdcbfdf84a58.pdf
    • http://detozube.scienceontheweb.net/callan_method_teacher_book.pdf
    • https://cdn-cms.f-static.net/uploads/4482413/normal_600c8c001dde5.pdf
    • https://cdn.sqhk.co/puvubuzu/UjjRhe7/pinball_map_utah.pdf
    • https://static.s123-cdn-static.com/uploads/4369930/normal_5fcc55c4f0766.pdf
    • http://duwudivusupo.mygamesonline.org/98312652730.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://a22c3535-4c29-4f26-bf6b-1e631d3648e5.filesusr.com/ugd/28986c_8946bfbfbb5342fcabb76fa3a1428ba0.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6794ef36-fd3c-4937-92da-35b961d440cd/24843005928.pdf
    • https://6d8b2927-5c4d-40df-b593-c6bd35e19528.filesusr.com/ugd/1adac8_a1962e697f984bf9ae77b8a99da38461.pdf?index=true
    • http://nizofikunatafu.atwebpages.com/lorepavawasabigugubab.pdf
    • https://uploads.strikinglycdn.com/files/a7528e7c-09f7-46af-8301-6c428e643106/27468699106.pdf
    • http://dorofudi.epizy.com/polygroup_summer_waves_pool_parts.pdf
    • https://6f2fb29c-15f2-4b08-b525-3eb91a7f0a41.filesusr.com/ugd/c3548c_d404135a255a46dd90ef8bdbd916348c.pdf?index=true
    • http://zibelasavu.atwebpages.com/97363337517.pdf
    • https://uploads.strikinglycdn.com/files/e043e8bd-b20a-4a47-a0af-88ae9263b0af/how_to_setup_toshiba_dvd_vcr_combo.pdf
    • http://wawosiwibu.epizy.com/33720133988.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_off0000f114.bin
4fc43fbb570cd323e17603b855bee1cac347189597f660440f077a2d518d4d24
pdf-font-stream PDF embedded font (sfnt) at offset 0xF114 5144 bytes
font_01_sfnt_off000102a2.bin
99f2dbbb34cb407cd47f57d928441f81a1a5e18439e9e4bb2fc68c768fc9cd77
pdf-font-stream PDF embedded font (sfnt) at offset 0x102A2 12836 bytes