Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee62ced4a922081…

MALICIOUS

PDF

67.5 KB Created: 2021-02-17 01:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c62a8fbeea4a3f7911980a38ca9a82f SHA-1: 7c909384c1776a0394dfe6cf7dac2c018f12979f SHA-256: bee62ced4a9220819d111f0c2383aa800b00691a355e91b8fd5dab09dacafa10
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified as malicious by ClamAV and ML classifiers. The document body, though heavily obfuscated, contains strings related to product parts and application names, suggesting a lure. The presence of an external URI and the overall detection by multiple security tools indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/strik?utm_term=sharp+xe-a507+parts
    • http://porerapeboligos.iblogger.org/vanobem.pdf
    • http://vorgazme.com/memoirs_of_an_addicted_brain8qa13.pdf
    • https://cdn.sqhk.co/subilikiwi/hjjgzje/awesome_paper_airplane_glider.pdf
    • https://cdn.sqhk.co/lawafopugu/jJjhChe/lg_xboom_go_pk7_watts.pdf
    • https://cdn.sqhk.co/makulowujip/bJOgche/kevowexok.pdf
    • https://cdn.sqhk.co/wadusazilox/PJVMgf7/the_lighthouse_mermaid_figurine.pdf
    • http://rollernefritmassage.xyz/70622483822rymjb.pdf
    • http://lnstagramverifiedbadgeshelpcenters.net/22207222683z4r4u.pdf
    • http://youtube-subscribes.com/81976995040oos66.pdf
    • https://cdn.sqhk.co/bujavenizake/6thbqYE/new_heavy_duty_tractor_pull.pdf
    • https://cdn.sqhk.co/fagaxirupunu/i4w3Xua/69741657453.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jofegatedil.rf.gd/cannonball_run_theme_tune.pdf
    • http://josusasufuni.epizy.com/alexander_movie_in_tamil_hd.pdf
    • http://gazugitub.epizy.com/android_goodies_shop.pdf
    • http://zogaxemajov.epizy.com/28987164968.pdf
    • http://wexugemo.epizy.com/wufemazigarazonowitonos.pdf
    • http://moraruvotu.epizy.com/2009_movies_telugu.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_off0000ca23.bin
5da220acd3905bb81f0c718cec803e0e6bc6e03d62422cbda369c375e1558f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA23 5424 bytes
font_01_sfnt_off0000dca0.bin
7284ad3e60c6afd2a91f39fa7cf9784badba66c8bd195b2c00018485c78fde13		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA0 10952 bytes

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