Malicious PDF — malware analysis report

Static analysis result for SHA-256 5224d66ea3bef771…

MALICIOUS

PDF

67.9 KB Created: 2021-03-12 15:24:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: a24c57a9a5afcdfcd65948728d50e75b SHA-1: a9a07563c9463219741e629e1e36a792f2bf556c SHA-256: 5224d66ea3bef77197dcba17c82c77806fe039503bcf7d004b5d12e7bd6fd9be
184 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO spam tactic. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs and the document body's deceptive content point towards a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7122

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/award?keyword=surah+al+waqiah+pdf+free+download PDF link annotation
    • http://lukanovetefitef.22web.org/44421646663.pdfIn PDF document text
    • http://bixorusinalabi.22web.org/tissot_t-touch_expert_solar_jungfraubahn_review.pdfIn PDF document text
    • http://waxokuvinati.iblogger.org/zikaferekiniramujajif.pdfIn PDF document text
    • http://ketorebagibof.22web.org/apologize_partition_piano.pdfIn PDF document text
    • https://retowukiri.weebly.com/uploads/1/3/4/5/134592720/5814538.pdfIn PDF document text
    • https://tevejokufip.weebly.com/uploads/1/3/0/9/130969131/zubimegarupiwuvedix.pdfIn PDF document text
    • https://faremuxonebaw.weebly.com/uploads/1/3/4/5/134598019/e183b6.pdfIn PDF document text
    • https://lemorixumo.weebly.com/uploads/1/3/4/7/134748879/samerifubew-repumufi-xofoxar-pirutom.pdfIn PDF document text
    • https://talunijepi.weebly.com/uploads/1/3/4/5/134599753/wesitajiloko.pdfIn PDF document text
    • http://xesebufawif.iblogger.org/5247702069.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://surifuj.rf.gd/nidinelofa.pdfIn PDF document text
    • http://vebipijofozit.rf.gd/votepevupudogivexa.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/rogula.pdfIn PDF document text
    • http://lajonapeloros.rf.gd/star_trek_voyager_episode_quiz.pdfIn PDF document text
    • http://vanudedu.epizy.com/fairy_bdo_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/chord_overstreet_hold_on_lyrics_video.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/bajirao_mastani_picture_hd.pdfIn PDF document text
    • https://db7841a4-af10-4990-a2be-f084cd4acbf6.filesusr.com/ugd/e3c460_196610f6f9334077bacc676998583e11.pdf?index=trueIn PDF document text
    • https://8c56b32b-3398-45d6-9c0b-b55146621f16.filesusr.com/ugd/6924eb_2e4217cb4fc0477ab3ba3d3abed85486.pdf?index=trueIn PDF document text
    • http://tajafex.rf.gd/sobigunelirodano.pdfIn PDF document text
    • https://4dd62b93-bb0f-494d-9363-2046eec350ea.filesusr.com/ugd/e54fc7_51a5aa9055d44cdc8af136bbba9cf7d6.pdf?index=trueIn PDF document text
    • https://6346cca1-8be9-442e-91e0-e35201572fa6.filesusr.com/ugd/a8c077_ff0ad3531ecf453096724c980be946e2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/nemevokajada.pdfIn PDF document text
    • https://03a45e23-20c9-4b13-8d21-50c2609e56df.filesusr.com/ugd/502f3d_be4679ed0d384d32b6d599fa22d65f97.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rumezo/7859921196.pdfIn PDF document text
    • https://8c1dc56a-a131-4b43-acff-3635b9115217.filesusr.com/ugd/90423f_678d8c5444b64717a9275a80635a51c7.pdf?index=trueIn PDF document text
    • https://0e8f88b9-656e-4b05-9cd8-8bd477f85547.filesusr.com/ugd/95b9ea_025e5c0c745a49fd8e64de15664a0b3a.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94A 5272 bytes
SHA-256: 073c2e3c7e9725166021abd05b1554a665539697bff35d352240559fdf19e379

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