Malicious PDF — malware analysis report

Static analysis result for SHA-256 e162cbf8ce6e6bdc…

MALICIOUS

PDF

85.5 KB Created: 2021-03-07 21:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c0a8dc5adf019775c75ace3e546d2e0 SHA-1: 1c60db9636658ff1c531a5d16c798f8f914d7d00 SHA-256: e162cbf8ce6e6bdcda9edd7f3d8d173662556753bc446d0c3f10172d95e415c2
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with the primary one being 'https://botokaw.ru/strik?utm_term=toro+ccr+2000+parts', likely leading to a phishing site. The presence of embedded URLs and the nature of the detection suggest a spearphishing attachment attack vector.

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://botokaw.ru/strik?utm_term=toro+ccr+2000+parts
    • http://inmyshtangen.xyz/how_many_layers_tcp_ip_protocol_hasu5tyv.pdf
    • http://goshop32.site/time_capsule_apple_specsip5x2.pdf
    • http://kudretbozaci.com/24379803337qsbyn.pdf
    • http://vebofituzor.iblogger.org/ieee_12207_srs_template.pdf
    • https://cdn.sqhk.co/gawukale/HtTGyhi/hidden_valley_ranch_dip_recipe_with_packet.pdf
    • http://jazovez.iblogger.org/84395492411.pdf
    • https://nolulanulupu.weebly.com/uploads/1/3/1/3/131379612/xazodipabotexi.pdf
    • https://saxarewuvopa.weebly.com/uploads/1/3/4/8/134855039/gufitepu.pdf
    • http://connexion-amelii.xyz/373258973597z72z.pdf
    • http://cyberghost.store/suximijodakip4ria.pdf
    • https://cdn.sqhk.co/lorotukogof/hjgfiar/capsicum_frutescens_seeds.pdf
    • https://cdn.sqhk.co/wifilivemij/dG6Saie/the_maxwell_house_spokane.pdf
    • http://simupujumojata.22web.org/mitsubishi_mr_slim_cleaning_blower_wheel.pdf
    • https://busejupeguwija.weebly.com/uploads/1/3/0/7/130740624/lijezujizosumitinun.pdf
    • https://xujopikaxatanow.weebly.com/uploads/1/3/4/8/134850499/556253.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pilorivebapo.rf.gd/nesolagelukodilenaseji.pdf
    • https://s3.amazonaws.com/jewizopukuni/contact_details_card_template.pdf
    • https://s3.amazonaws.com/dipafuxe/66607505347.pdf
    • https://s3.amazonaws.com/remavuj/cd4511bcn_datasheet.pdf
    • https://s3.amazonaws.com/liluvad/how_to_pair_plantronics_plt_earbuds.pdf
    • https://s3.amazonaws.com/kesumasaka/89733245336.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_off000111f1.bin
47a2967cc59f4a43b57db2e7089daf5be7e1dbd479545fb6e24ab45f74c8eb75
pdf-font-stream PDF embedded font (sfnt) at offset 0x111F1 5116 bytes
font_01_sfnt_off00012364.bin
0bb26d02b69a113554886b641b0becfed0a43e75c1096aeb6e4c0731da42b487
pdf-font-stream PDF embedded font (sfnt) at offset 0x12364 12000 bytes