Malicious PDF — malware analysis report

Static analysis result for SHA-256 68cfdef30b22979c…

MALICIOUS

PDF

83.3 KB Created: 2021-04-14 23:58:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 770087b2047e01fc09ed3d4671e98986 SHA-1: 52d8ff18a95f0cd13063a6bc7a61ff770e598af6 SHA-256: 68cfdef30b22979ccf60135914b72fd6e00605273af1f3d3aa026d07e0fe7a69
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV and an ML classifier flagged this PDF as malicious, indicating a phishing or malware distribution attempt. The presence of external URIs and embedded URLs strongly suggests the document is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/strik?utm_term=gypsy+jazz+guitar+chord+shapes
    • https://cdn.sqhk.co/sozimelizak/jYhdjaV/lightroom_free_alternative_2020.pdf
    • https://cdn.sqhk.co/tamejenonisi/jd7spip/marco_s_pizza_las_vegas_menu.pdf
    • http://dapujabowigu.sportsontheweb.net/71337973804.pdf
    • http://torixewiser.medianewsonline.com/45066995361.pdf
    • http://temipedozut.22web.org/bng_gi_cadisun_2020.pdf
    • https://cdn.sqhk.co/xaxovowupofa/FziaijX/z_nation_season_6_netflix_australia.pdf
    • https://cdn.sqhk.co/pibilebomek/ihIhejc/danobebisafifepigumaruto.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vavapekadoliti/blackfoot_river_fishing_guides.pdf
    • https://s3.amazonaws.com/jevopemosod/bajarangi_kannada_film.pdf
    • https://s3.amazonaws.com/vezumobigodub/hp_laserjet_p4015_parts_list.pdf
    • http://miwufojo.epizy.com/bitomaruselabemapavumib.pdf
    • https://s3.amazonaws.com/veraxawewib/59669773656.pdf
    • https://s3.amazonaws.com/kavalukato/37758031412.pdf
    • https://uploads.strikinglycdn.com/files/9c7fe247-994c-433b-bdf6-7c73e489b8bb/61930581962.pdf
    • https://uploads.strikinglycdn.com/files/f899c1d9-537a-46dd-bc27-58d44c710fe0/nimigitotokojavigad.pdf
    • https://s3.amazonaws.com/lanaladu/why_is_my_wifi_extender_blinking_red.pdf
    • http://kazixovo.rf.gd/65376212080.pdf
    • https://s3.amazonaws.com/bagisi/the_scarlet_pimpernel_synopsis.pdf
    • https://s3.amazonaws.com/nisoxow/85079246391.pdf
    • https://uploads.strikinglycdn.com/files/11ce66ac-8da2-4074-8c51-432935d40497/24295491581.pdf
    • https://s3.amazonaws.com/punurum/gajovajujudagapi.pdf
    • https://s3.amazonaws.com/mexavofezoxi/star_wars_-_dd_5th_edition_conversion_download.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_off000105c6.bin
c3af35888b499fee67ba9f6539b9adfeef74ec3bf3ec06bc77e29400a443f3fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x105C6 5560 bytes
font_01_sfnt_off000118c3.bin
26917ecb5a8e34f20f6f1a27d07390c2ad991c2c733b2ec8d169a334bf49c959
pdf-font-stream PDF embedded font (sfnt) at offset 0x118C3 11184 bytes