Malicious PDF — malware analysis report

Static analysis result for SHA-256 5292bb1ec185f195…

MALICIOUS

PDF

76.3 KB Created: 2021-03-23 10:01:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f6c9f9161428f5c8c4a837b64691350 SHA-1: 742016b2dc461427028238845fe239043f78955f SHA-256: 5292bb1ec185f19502fa639b4978ecea42a5417efd33dc9ff17df377bba0e4c4
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The PDF structure and embedded content suggest it is part of a phishing campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/award?keyword=beginners+grammar+exercises+pdf
    • https://bisenazogogo.weebly.com/uploads/1/3/4/6/134686343/xegerubikogivakapu.pdf
    • http://qqkaxes.xyz/2189241551663cfg.pdf
    • http://souve.me/begofebazikodulefujm9gu5.pdf
    • http://papotanepif.22web.org/cylinder_volume_worksheet_kuta.pdf
    • https://nubukagogurug.weebly.com/uploads/1/3/4/4/134495847/xonogo.pdf
    • http://istlan.fun/roditudexmzge.pdf
    • http://lamomusexosefe.66ghz.com/abs_academic_journal_guide_2015.pdf
    • http://faromobipon.22web.org/bovesusewutirupip.pdf
    • https://tilavulam.weebly.com/uploads/1/3/0/7/130739056/d364c7.pdf
    • http://hotgirls.host/vanity_fair_tv_show_reviewjq60r.pdf
    • http://fimewot.xyz/32142648321ulyl.pdf
    • http://kurisuk.22web.org/69044715725.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tokudapele/kaththi_movie_tamil.pdf
    • https://uploads.strikinglycdn.com/files/b67eec33-7f12-4f10-8849-6d93794b8c73/59940319177.pdf
    • http://mitefarosut.rf.gd/conjunction_examples.pdf
    • https://uploads.strikinglycdn.com/files/74c21051-5ea3-4a5b-a6a8-19fb4226d0f0/hunter_fan_remote_light_switch_not_working.pdf
    • http://sewokamituga.rf.gd/the_compound_effect_full_free_download_reddit.pdf
    • https://s3.amazonaws.com/vogubivajavofu/noremuferajagitixi.pdf
    • https://s3.amazonaws.com/takateg/8573376975.pdf
    • http://gonuzalujulogab.rf.gd/why_does_my_iphone_5c_battery_drain_so_fast.pdf
    • https://s3.amazonaws.com/tabobujimo/how_to_quote_in_ap_style.pdf
    • http://savemujasowapu.epizy.com/46375813660.pdf
    • http://dudaturid.rf.gd/29819362916.pdf
    • https://s3.amazonaws.com/savifin/70905507066.pdf
    • http://kijolitenelofon.epizy.com/bible_study_guide_for_all_ages_review.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_off0000ec09.bin
1f8252613736a98fb0a782479ad840cb19205a37716c32894003513f1515752b
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC09 5560 bytes
font_01_sfnt_off0000feeb.bin
a34b64e7ce40f1047b3d75ee398c60b231aea3bc7177c7c522e04aa2309772ba
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEEB 10360 bytes