Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bcde38e79975151…

MALICIOUS

PDF

78.6 KB Created: 2021-03-03 06:55:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 08b56b7373ef435496c392b0ca1c718e SHA-1: 78de32dc1381d3e7f17f5efe01ffa9fd8ff2c701 SHA-256: 6bcde38e7997515196dccd31d28a4305cb94b24e6a1e3ab33fd2a9c0ca45a9bb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, suggests a lure related to 'quotes' or 'awards'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or malware delivery attempt.

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://seumenha.ru/award?keyword=what+is+love+and+respect+quotes PDF link annotation
    • http://giwapozolaleg.mypressonline.com/xawamuko.pdfIn PDF document text
    • https://cdn.sqhk.co/remigalakefo/785ggs3/thrifty_meaning_in_tagalog.pdfIn PDF document text
    • http://tepuragebu.iblogger.org/sky_blue_semi_formal_dresses.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406464/normal_60259868f13d9.pdfIn PDF document text
    • https://cdn.sqhk.co/litigoruf/ij5RVif/nifasukum.pdfIn PDF document text
    • http://gedawirij.66ghz.com/49140188739.pdfIn PDF document text
    • http://gexafozo.22web.org/63911983750.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393626/normal_5fdd3db225b78.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://saperemobopiga.epizy.com/c_g_road_full_form.pdfIn PDF document text
    • http://megomofa.rf.gd/kopijajatawusedufinum.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/menevaziwuvetibam.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/452386893.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/pibesemudel.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/angelic_buster_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/android_1_mod_apk.pdfIn PDF document text
    • http://zerujafulo.rf.gd/noledavib.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 5240 bytes
SHA-256: d0abf145d37550826201af8594bceaeefc0524e9ec4e7b1b5064697e1ad74f52
font_01_sfnt_off0000fd18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD18 9952 bytes
SHA-256: 4f5c1bf2f1ad48af015d535d4bca91c95aa57b0ed27d1a2600fedc7f46ed76d1
font_02_sfnt_off00011f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F1A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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