Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc6e3df0a38439d…

MALICIOUS

PDF

71.5 KB Created: 2021-05-07 23:43:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b721f86cffdd4d1abf0aca00365c5e65 SHA-1: 9c36634874ee1629e8eee9b04a1f39706d62ede5 SHA-256: 2cc6e3df0a38439d6478cbad94fae898e2c2fb814b85116632c3d747f8cfa9e6
96 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or phishing content. The document body, though heavily obfuscated, appears to be a lure related to printer ink, suggesting a phishing or scam 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://dafemum.ru/strik?utm_term=what+ink+for+hp+6830
    • http://tewatag.medianewsonline.com/38595672171.pdf
    • https://cdn.sqhk.co/melivetipi/jcE7zhL/sukovefetisit.pdf
    • http://study-english-05.site/polk_magnifi_soundbar_manualg1fd2.pdf
    • http://gufutaca1.xyz/nibixuqdly6.pdf
    • http://japarof.mywebcommunity.org/angiographic_views.pdf
    • https://cdn.sqhk.co/tenotitur/3JQmxij/wuvuxatozenazetuxuvoneba.pdf
    • http://silkhfig.bid/fresh_off_the_boat_meaning_in_tamilxgcp4.pdf
    • http://hamlikjorettoop.ru/vosamora0a8jn.pdf
    • http://photoforce.ru/birijafarazedalifikopevuh8748.pdf
    • https://cdn.sqhk.co/duzoxibuf/hihgehi/wijutitewi.pdf
    • http://wonder-ita.fun/68455933413vlp90.pdf
    • https://cdn.sqhk.co/xeliwiwogivo/YjfuZI1/99118758381.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zitadufafasid.onlinewebshop.net/poulan_pro_pp5020av_carb_settings.pdf
    • http://kejagabato.myartsonline.com/tratamiento_neumonia_pediatria_2020.pdf
    • https://s3.amazonaws.com/rodiligarexo/11_22_63_hulu_trailer.pdf
    • https://s3.amazonaws.com/lomuper/8.3_multiplying_and_dividing_rational_expressions_worksheet_answers.pdf
    • https://s3.amazonaws.com/fofeguj/ibiza_netflix_parents_guide.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_off0000d6fb.bin
186515a8114f9d65eb8f5b1cb851f7927b59dd488a1c13932e2c00bd24326bc5
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6FB 5512 bytes
font_01_sfnt_off0000e9bf.bin
94b3a31f640a54676ad5c0692b811ac09602917fedaf9aa2c5b4774991d247e2
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9BF 11664 bytes