Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eab532a0716772c…

MALICIOUS

PDF

82.3 KB Created: 2021-03-17 03:15:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: e0a30118f509be994be1546d018e07e4 SHA-1: 07cb2dd29fb64c50f08911db5ea6770e4d0ddeaa SHA-256: 1eab532a0716772cbf4bb46e32ddcf10a5c2654c270c2ec30c079be6896f7674
126 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 one prominent URL pointing to a financial trading topic, suggesting a phishing or scam lure. Although no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://kuzutuzo.ru/strik?utm_term=how+early+can+you+trade+on+thinkorswim PDF link annotation
    • http://zafidobavamus.22web.org/34348435710.pdfIn PDF document text
    • http://xurivikarode.iblogger.org/divina_commedia_purgatorio_canto_1_sintesi.pdfIn PDF document text
    • https://cdn.sqhk.co/fomolunuvufa/dggyjNh/zekotivezagef.pdfIn PDF document text
    • http://fevozogu.iblogger.org/gixujope.pdfIn PDF document text
    • https://cdn.sqhk.co/konajera/3r4nieV/black_rifle_coffee_company_owner.pdfIn PDF document text
    • http://xodikiz.iblogger.org/chinese_character_stroke_order_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/gugapedulob/idSdifb/neighbors_game_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/xajamenujo/ejd7je8/tinupawemuxedukal.pdfIn PDF document text
    • https://cdn.sqhk.co/fagiseregu/SYlGGgj/catfish_picture_meme.pdfIn PDF document text
    • http://wunanufirum.22web.org/853830906.pdfIn PDF document text
    • http://vuvezalamosi.22web.org/bruce_lipton_the_biology_of_belief.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sekuwomexapa.myartsonline.com/47942538579.pdfIn PDF document text
    • http://mifotabelimudon.myartsonline.com/les_misrables_musical_streaming.pdfIn PDF document text
    • http://sujawusoxenum.rf.gd/wewoxifelelelowaruwiku.pdfIn PDF document text
    • https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_697903aaf4534551bb1bf2eab06f4814.pdf?index=trueIn PDF document text
    • http://guluvuto.rf.gd/anandabazar_patrika_today_news_in_bengali_free_download.pdfIn PDF document text
    • http://namakanexir.atwebpages.com/the_art_of_racing_in_the_rain_chapter_23_summary.pdfIn PDF document text
    • https://efed9c07-4553-4484-a419-1b844d271aeb.filesusr.com/ugd/6f475a_5dc04647f2194339adc81fefb7d9672f.pdf?index=trueIn PDF document text
    • https://9ef77391-fdd1-48d8-ba15-364b07375333.filesusr.com/ugd/ebefdf_b27bd06bcd2b476aa99861147047d7f4.pdf?index=trueIn PDF document text
    • http://xawezukazekexi.epizy.com/51552835618.pdfIn PDF document text
    • http://pavemadimakok.epizy.com/dipigoj.pdfIn PDF document text
    • http://kotokadi.rf.gd/karabafigomabatexedofikeb.pdfIn PDF document text
    • https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_361e46e6e64042cf9131aca04483e7b4.pdf?index=trueIn PDF document text
    • http://sokivuj.epizy.com/gebepoz.pdfIn PDF document text
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_f41cf9c01aaf4bebb59484c7e4ade6fb.pdf?index=trueIn PDF document text
    • http://zobawukesilebaf.epizy.com/33356607658.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6FC 5396 bytes
SHA-256: 0cb9a56c4406248fda682b1a56f9d087ec1ea7fdc8df976aa157027f1833c223
font_01_sfnt_off00010933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10933 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off000111c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C0 11680 bytes
SHA-256: d95a5a26fde2af4b9210bb9db51ae9910b9fbab192b50631060939ef378193ac