Malicious PDF — malware analysis report

Static analysis result for SHA-256 57eff67fca1dcf2c…

MALICIOUS

PDF

72.4 KB Created: 2021-03-23 01:23:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0690ca0fe25ed8301639273f1b9545cc SHA-1: 76e6922d54af4d3e207c1ff230f3b3b783565342 SHA-256: 57eff67fca1dcf2c8d8563d752705fe900870acf7846958556f8a00f9bb649cd
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to 'Kwal paint color pillar', suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=kwal+paint+color+pillar
    • https://kajemawukik.weebly.com/uploads/1/3/4/5/134589491/torem.pdf
    • https://cdn-cms.f-static.net/uploads/4454982/normal_60417c7397f33.pdf
    • https://cdn.sqhk.co/morureju/iZsijj0/spearman_rank_order_correlation_coefficient_calculator.pdf
    • http://bettermoneytips.com/xigobegowodigeorpjd.pdf
    • https://xejuxomezul.weebly.com/uploads/1/3/1/6/131637030/fuxis-vazeferap-dimobinefari.pdf
    • https://fukuperuka.weebly.com/uploads/1/3/4/8/134883813/kuwozod.pdf
    • https://cdn-cms.f-static.net/uploads/4495531/normal_60554980e0263.pdf
    • https://cdn.sqhk.co/dokukavifig/gdSpTie/mezogapuwewagis.pdf
    • https://gotizede.weebly.com/uploads/1/3/2/6/132695714/5907817.pdf
    • https://cdn.sqhk.co/nelufebo/AxIhaic/85873719450.pdf
    • http://roflan.site/axel_f_sheet_music_free_printablep4sqe.pdf
    • https://cdn.sqhk.co/pixafosabow/TNgcDJg/81872076687.pdf
    • https://zalidumi.weebly.com/uploads/1/3/5/3/135351231/xokanosabun.pdf
    • https://static.s123-cdn-static.com/uploads/4366305/normal_5fe0d79bb7015.pdf
    • https://cdn-cms.f-static.net/uploads/4459337/normal_5fe74bc7aaf0f.pdf
    • http://skameyki.club/selulazogewuzelawutosurokudoxc.pdf
    • https://cdn-cms.f-static.net/uploads/4461201/normal_60388811cc37c.pdf
    • http://apkweb.net/countif_google_sheets_color1ja3i.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mavixu/pufipo.pdf
    • https://s3.amazonaws.com/sagotomagin/visite.pdf
    • https://s3.amazonaws.com/zafijukopa/embedded_developer_interview_questions_answers.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_off0000e239.bin
96c48e4693bab84c9f91494fc3f40b83fcba65d998b577b96ed6009a689c5a55
pdf-font-stream PDF embedded font (sfnt) at offset 0xE239 4812 bytes
font_01_sfnt_off0000f2bb.bin
7404728c54c5679f80fe6e5fe8dfdb9896d12d08051787c0511af26cc890274c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BB 9924 bytes