Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f02cf9bf6816cc…

MALICIOUS

PDF

122.2 KB Created: 2021-03-01 11:17:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b22ce3b377dcf2aba86d1ea017769d7 SHA-1: 27981c1039be1b14b80d3244b60b133fb11a243c SHA-256: c7f02cf9bf6816cc7c3c997ff20a14a6edd7d609fdd6a474ab85b6874fe1b204
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, indicating a phishing or trojan threat. It contains numerous external URIs, including one that appears to be a search result lure pointing to a disposable domain. The presence of embedded URLs and the nature of the heuristics suggest the document's primary purpose is to redirect users to potentially harmful websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9640

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://lozipotod.ru/123?utm_term=how+big+is+a+32+bit+integer PDF link annotation
    • https://cdn.sqhk.co/nixagigad/Yf1Ozgc/nowalofuxonisupenume.pdfIn PDF document text
    • http://patajafurep.mywebcommunity.org/can_you_use_a_forehead_thermometer_on_a_baby.pdfIn PDF document text
    • http://xifadezuzurap.medianewsonline.com/how_to_draw_manga_for_beginners_with_angieartmanga.pdfIn PDF document text
    • http://xitodefigatefuj.medianewsonline.com/how_to_fasten_wood_without_nails.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/deoxys_normal_forme_raid_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/Ebicigg/learn_javascript_the_hard_way.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/how_to_use_treadmill_without_ifit.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/louisville_slugger_black_flame_pitching_machine_video.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/how_to_fit_an_integrated_headset.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/how_do_you_charge_a_ego_t_vape_pen.pdfIn PDF document text
    • http://vawolanuxoreg.epizy.com/95471762193.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 12

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AF2 6944 bytes
SHA-256: 0e21f1561e6fd05b057627d60db69432e4e2e11e3569f018deda8c1ad265a3e5
font_01_sfnt_off00012c36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C36 3440 bytes
SHA-256: 8dc22e169b19046ad4c00353d48927bf7f617409eb423ba49bb609bde00d9990
font_02_sfnt_off00013887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13887 5312 bytes
SHA-256: c1c070a46e6c7bc390a28f65e577371aaa7ac266b1d992aaf7f1b9902e19a7d6
font_03_sfnt_off00014ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AB8 2136 bytes
SHA-256: a38695fe50f49a181ebe6a268040f1a5d6813482ede4d66ac55372f1be80d056
font_04_sfnt_off00015421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15421 3816 bytes
SHA-256: c7c8304a22711b4396d584ca93b09a029763e39a1875c34be0ed5a1a474f379e
font_05_sfnt_off00015fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FEE 2316 bytes
SHA-256: e54f575bea2af4637f816cfb1d5d736a11d65dd2f22f7df1327115ef8d763a5d
font_06_sfnt_off0001692a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1692A 4016 bytes
SHA-256: be6e31bba30e02db5da7a1eec3d26666f64e2f49b8238202b2dcaac8334a9f75
font_07_sfnt_off0001753f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1753F 1472 bytes
SHA-256: a8d8ddff7cefa063273f9ca9b85b6c3adbe6cd36876168bc040ac1772ee2a0a4
font_08_sfnt_off00017d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D42 5852 bytes
SHA-256: a49bd1939e0a34d4a459f45468bc55752325fe4087b55c1b1ab666402e900fa5
font_09_sfnt_off00018bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18BF2 1576 bytes
SHA-256: 6f383f78c668bf9f0c31eacdf5f68f33336f0d7ced259afc36c3f445aadbc992
font_10_sfnt_off000193f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x193F7 13412 bytes
SHA-256: 23fa48f94961567e7714fd774c364a90af96c6edbfb559792aac715c2cca7bac
font_11_sfnt_off0001c164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C164 16472 bytes
SHA-256: 30f423ff53949975465531182b498c1e01066a59c7e4b16ba6de9e1fd145524b