Malicious PDF — malware analysis report

Static analysis result for SHA-256 a37126f2269db948…

MALICIOUS

PDF

75.3 KB Created: 2021-03-30 16:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2f99add353ad4bdb1c96925fe0f2635 SHA-1: 265029979525bc6842d04fc2d822bd72a13ff607 SHA-256: a37126f2269db94851f9d8747315dc773d62d0ecd4949dfeb0a354149d4ffcbd
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that directs users to a domain associated with malicious activity, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'auto glass repair near me now', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://pelibifir.ru/strik?utm_term=auto+glass+repair+near+me+now
    • https://vanizubifimid.weebly.com/uploads/1/3/0/8/130874516/sudelakuvo.pdf
    • http://momarivido.mypressonline.com/future_probability_exercises.pdf
    • https://wotakowa.weebly.com/uploads/1/3/4/8/134885303/rekafakuboxosekaw.pdf
    • http://lijovafe.22web.org/38203975319.pdf
    • https://xasigusuvenazuj.weebly.com/uploads/1/3/0/7/130739755/fe628b8.pdf
    • https://cdn.sqhk.co/tamoravuwera/gie0hcW/sonic_the_hedgehog_cake_template.pdf
    • https://cdn.sqhk.co/wofunukasu/cjbbiOh/school_days_chuck_berry_guitar_tab.pdf
    • https://cdn.sqhk.co/gipiwelabaka/h1hjeif/template_ppt_pendidikan.pdf
    • http://kazexajisodibu.medianewsonline.com/how_to_do_better_in_algebra_1.pdf
    • https://diwowure.weebly.com/uploads/1/3/4/5/134592565/5606631.pdf
    • http://rugegav.mywebcommunity.org/mavijaxupeserel.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lowevuribif.epizy.com/rexamedijejalabulawe.pdf
    • http://temolujipu.myartsonline.com/eq_school_calendar_2020.pdf
    • http://xuxerutiwuv.onlinewebshop.net/what_is_the_setting_of_me_before_you.pdf
    • https://uploads.strikinglycdn.com/files/194f0a89-1bcc-4273-9495-db3509de46f1/45062933994.pdf
    • https://uploads.strikinglycdn.com/files/ead2b7af-7192-49c6-aed2-43865404ec4d/essex_bus_route_98.pdf
    • http://pejefovad.epizy.com/95176431091.pdf
    • http://xilibosukotijob.epizy.com/case_information_sheet_williamson_county.pdf
    • http://kurejob.epizy.com/what_rules_did_knights_have_to_follow.pdf
    • https://uploads.strikinglycdn.com/files/cafbcadc-9b3a-4f59-b880-351b387fc573/lemujis.pdf
    • https://s3.amazonaws.com/pevuwarobuvowa/hcv_treatment_guidelines_2017.pdf
    • https://s3.amazonaws.com/legapatatezisa/kexolokosubafetefekanu.pdf
    • https://uploads.strikinglycdn.com/files/d36dfa53-2efb-44d0-9dcb-4a4eba006393/lujisokofo.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_off0000e8bb.bin
af5333559aee4e7a1c279b111ec15ebc63f85f10ce4dc965ac254db8c1835aff
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BB 5220 bytes
font_01_sfnt_off0000fa7c.bin
843ba28179d5c7d1f020b424b755fbc29851c7c410ef9f056300bece9c086037
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7C 10912 bytes