Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fdde69696d78eee…

MALICIOUS

PDF

84.1 KB Created: 2021-03-13 14:34:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ddd62aaec9df7a0114c38de164f2650 SHA-1: 22c33af7493c3b764eaa2ad89c34d390bdf6e594 SHA-256: 9fdde69696d78eee9f8892a6dcf3ce91af75061b912b3e615f709572357590a1
176 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external links, including a link farm, suggests an attempt to direct users to potentially harmful websites. The document body, though heavily obfuscated, contains references to 'Disneyland california map 2020 pdf' and 'wkhtmltopdf', likely serving as a lure to disguise the malicious nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://jumiwimov.ru/award?keyword=disneyland+california+map+2020+pdf
    • http://dipunag.getenjoyment.net/who_are_the_western_philosophers.pdf
    • http://toluvubub.mygamesonline.org/21309137830.pdf
    • http://igme.site/numosewavexvo5zi.pdf
    • http://skout.tech/sqlite_android_studio_pluginahr2v.pdf
    • http://thesalle.xyz/23108644834mkq7f.pdf
    • http://easterthjg.com/determine_the_indices_for_the_directions_shown_in_the_following_cubic_unit_cellfkita.pdf
    • https://paterixif.weebly.com/uploads/1/3/1/4/131454766/bigejibiverapun.pdf
    • https://nipetetoxijekuj.weebly.com/uploads/1/3/4/7/134718304/rulimamizi.pdf
    • https://wudizabilizone.weebly.com/uploads/1/3/4/7/134745746/wuxaxiveko.pdf
    • http://wumiwuzigimo.mywebcommunity.org/what_did_the_second_great_awakening_emphasize.pdf
    • http://good-production16.site/wofobikoku385i.pdf
    • http://latuha.com/dd_vampire_player_class2zdrd.pdf
    • http://xepuxesadara.mypressonline.com/all_american_pressure_canner_for_sale_used.pdf
    • https://ruzutemeba.weebly.com/uploads/1/3/2/6/132681300/2177370.pdf
    • http://summer-italy.fun/best_cowboy_hat_for_yard_work6rcsg.pdf
    • http://believes.space/90438343295hu4gq.pdf
    • http://netewe8.xyz/life_and_death_stephenie_meyer_downloadwm8go.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xubifupi/telecharger_shazam_apk_uptodown.pdf
    • https://s3.amazonaws.com/rekorewexidiwo/boy_scout_handbook_norman_rockwell_cover.pdf
    • https://s3.amazonaws.com/vipuxafol/python_programming_interview_questions.pdf
    • https://s3.amazonaws.com/juwofuxufijup/cellular_respiration_online_lab_answers.pdf
    • https://s3.amazonaws.com/pazatuv/iturra_design_catalog_2010.pdf
    • https://s3.amazonaws.com/buwosevax/rekexudufem.pdf
    • http://wegamaluperetuj.atwebpages.com/kizejufalabirofepovetiv.pdf
    • https://s3.amazonaws.com/gonafoziguwewe/34251134747.pdf
    • https://s3.amazonaws.com/vebogotexaf/ard_mediathek_firefox.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://youtu.be/luDgb5vVHuAI
    • 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_off0000fea3.bin
7db1db42d386e469c7202b8ef6325ec647eb0fc2d5aaa7599dbfa2d9c0c29cc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA3 5676 bytes
font_01_sfnt_off000111e5.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111E5 1800 bytes
font_02_sfnt_off00011a72.bin
8fe01298f7cf8997c236bc7bc8dcae43e88fa69d0a78ff00ae08df8f5cf60e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11A72 11244 bytes

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