Malicious PDF — malware analysis report

Static analysis result for SHA-256 89948684289637e5…

MALICIOUS

PDF

77.1 KB Created: 2021-03-18 23:55:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: daf45cb3d95cd22973d81f938659def9 SHA-1: 79df7deb9186918f89c362b420a0b384e6bf7d79 SHA-256: 89948684289637e5b53d0f1a077622bf07a219bfaa41b99a89727789640d7abc
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with the primary one being https://golowaki.ru/wix?keyword=amor+eterno+univision+actores, suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/wix?keyword=amor+eterno+univision+actores
    • http://netlysy.online/what_is_the_lowest_score_on_family_feud_fast_money1c7gu.pdf
    • http://tryporte.xyz/102070368877pzs8.pdf
    • http://mandarins.space/30746878446znc8j.pdf
    • http://eagleaff.com/wugijop4g8b.pdf
    • http://maska-respirator.com/51697431293s0bdt.pdf
    • http://cashfree.store/2007_altima_service_manual2v0kt.pdf
    • https://wuwesojelure.weebly.com/uploads/1/3/5/9/135973580/1425227.pdf
    • http://prod-fruit.space/electronics_all-in-one_for_dummiesia0eu.pdf
    • http://betflixguvenilirmi.com/4884005881ffr6a.pdf
    • http://rineset.xyz/rukakakuroan8e5.pdf
    • http://babysampler.com/what_classes_to_take_to_become_a_medical_assistantb8ukd.pdf
    • http://mandarin-fruit.space/baldi_s_basics_super_easy_modizkjq.pdf
    • http://nibelv.xyz/adventist_home_ellen_white_audiouiy1f.pdf
    • http://sberbank.services/liligitoti3k7nn.pdf
    • http://unreguezff.rest/bullguard_antivirus_with_crack1e3mc.pdf
    • http://pesale.pro/xorimezozot890u.pdf
    • https://duketexu.weebly.com/uploads/1/3/4/7/134725944/6345664.pdf
    • https://wesuzijuto.weebly.com/uploads/1/3/0/7/130740493/murajajizogoloj.pdf
    • https://miletotafog.weebly.com/uploads/1/3/4/7/134758503/f39890ec19a31.pdf
    • https://guwusupokase.weebly.com/uploads/1/3/1/4/131437041/689311.pdf
    • http://energytik.net/lebawiritomiruzifaxepi8k1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6c1654ab-5420-485b-b475-e9fa39665ffd/howls_moving_castle_wallpaper_hd_iphone.pdf
    • https://uploads.strikinglycdn.com/files/62f59579-3ad6-43cb-852b-12cc65526501/aprender_ingles_americano_aia.pdf
    • https://uploads.strikinglycdn.com/files/38f7c212-a1b9-45e6-9610-9ffa55ce9050/how_to_identify_dwarf_coconut_tree.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_off0000eeb6.bin
b0adc5ee9cda8e7a895823965246e2c5fc386cddf083a2261bd3984c7aabf7e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB6 4964 bytes
font_01_sfnt_off0000ff82.bin
f7ce2719ccd58da4801699e7ef30bbc9a9fa6fefb5b3571e640ab6437f432997		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF82 13148 bytes

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