Malicious PDF — malware analysis report

Static analysis result for SHA-256 c946e96a91046c60…

MALICIOUS

PDF

82.2 KB Created: 2021-03-14 22:41:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07abecb7803b1f592ea292e6c245ac97 SHA-1: 7b21901f3b03e36e6335cedbf790c5e9dacee9f4 SHA-256: c946e96a91046c6060ebfd47775b03f4c2351833d3816294edb7ac1b68a244b0
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is also listed as an IOC. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for phishing or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://xezojetit.ru/wix?keyword=emil+und+die+detektive+easy+reader+pdf
    • http://salestore.pro/can_i_put_a_regular_storm_door_on_a_mobile_home8brd6.pdf
    • http://puliliraforuwu.22web.org/brunel_university_email_format.pdf
    • http://vitalia-transports.com/e_aadhaar_passwordwrj62.pdf
    • http://mushygushysayings.com/86382364020lc7gt.pdf
    • http://siondez.ru/the_nation_of_gods_and_earths_websiteo116t.pdf
    • http://stroy-level.ru/over_the_rainbow_ukulele_strumming_patternc0n7x.pdf
    • http://iclod.tech/dunkin_donuts_menu_low_calorie_drinks0wc5k.pdf
    • http://ompala.store/detedeht9w.pdf
    • http://pubgucbayim.com/10466894250vtu3b.pdf
    • http://djami.ru/gazujaxarury8jvq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/xisakazelelinim/majilokizokomidur.pdf
    • https://uploads.strikinglycdn.com/files/c957c4a0-94ce-4347-9fc1-2a181f13ab51/texaje.pdf
    • https://uploads.strikinglycdn.com/files/b6419b01-899f-486e-9aca-b772d96631ca/nordictrack_audiostrider_800_console_not_working.pdf
    • https://s3.amazonaws.com/zodererezuzuxi/mixetudevorevu.pdf
    • https://s3.amazonaws.com/rilexazejuzovep/character_reference_template_for_court_qld.pdf
    • https://s3.amazonaws.com/wovugi/85184577265.pdf
    • https://s3.amazonaws.com/regovadeje/delomikiw.pdf
    • https://uploads.strikinglycdn.com/files/69f5eb7e-4a67-4b03-8875-2657e500cc0e/google_making_us_stupid_or_smart.pdf
    • http://kizarup.epizy.com/90134110109.pdf
    • http://vimonaker.epizy.com/spider_man_games_for_android_phone.pdf
    • https://uploads.strikinglycdn.com/files/452be5ea-143e-4e1c-b966-edb3b827b222/whirlpool_lid_lock_not_working.pdf
    • https://uploads.strikinglycdn.com/files/65cba8e4-db15-4034-9988-b24f8db8acee/white_wolf_werewolf_the_apocalypse_downloads.pdf
    • http://xugonowelimije.epizy.com/zixekasipamunesoliweripo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f587.bin
9d91b50c58a4f2aebf69dda9250d3c3872c17d6063cde25676a6b7a0e8592882		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF587 5140 bytes
font_01_sfnt_off000106ea.bin
9d4889c5a726179d6639bbc5497912a1a2134fcb959bed4f8ba2551023f8a852		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106EA 12244 bytes
font_02_sfnt_off00012d3d.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D3D 4324 bytes

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