Malicious PDF — malware analysis report

Static analysis result for SHA-256 610967ab4cbf1e3a…

MALICIOUS

PDF

77.2 KB Created: 2021-03-30 15:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4aaea2f06975b6575ab3029172269bc9 SHA-1: 7e9d34bdd5babcee006bb73bbd60b6a3a3647c17 SHA-256: 610967ab4cbf1e3aea8e7e2084f125dc741e3c42ee84d01de6fdeb189d4524d2
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting the document is a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/wix?keyword=2007+hummer+h3+repair+manual
    • https://gifuroromila.weebly.com/uploads/1/3/4/3/134377961/dirumajudi-dizakot-sigatere-mijeme.pdf
    • http://my-favshop.online/36919210836j5bx7.pdf
    • https://welukixavise.weebly.com/uploads/1/3/1/0/131069839/lumikitozapis_ripunulawav.pdf
    • https://cdn-cms.f-static.net/uploads/4369928/normal_6059ebf51fdff.pdf
    • https://gumijunu.weebly.com/uploads/1/3/5/3/135399233/firekerekivi.pdf
    • http://theharaka.online/bapukajakeesxe.pdf
    • http://pimebujeben.66ghz.com/to_guide_meaning_in_tamil.pdf
    • https://tekerigaxigo.weebly.com/uploads/1/3/4/7/134702693/nazisonalarakuj_webutuv.pdf
    • https://static.s123-cdn-static.com/uploads/4497369/normal_5fe0e506ad19b.pdf
    • http://sokfresh.fun/13182719053yhdhn.pdf
    • http://aslixan.com/2019_ktm_150_sx_owners_manualm7vri.pdf
    • http://lerob.info/wuseninomibexmol3g.pdf
    • http://hyipinvest.site/fixosexuzunudarupewoj7dw9m.pdf
    • https://mefapepuj.weebly.com/uploads/1/3/4/3/134310437/xanugiwivaxodaxowof.pdf
    • https://cdn-cms.f-static.net/uploads/4420910/normal_601110bd58f0c.pdf
    • http://salebox.shop/48904399696b7i3p.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vezumobigodub/reportage_ehpad_france_5.pdf
    • http://poramukuwulaji.epizy.com/semicolon_worksheet_with_answers.pdf
    • http://xofedebowin.epizy.com/lego_marvel_superheroes_demo_pc.pdf
    • http://wowinagapujepok.epizy.com/chevening_scholarship_interview_questions_and_answers.pdf
    • https://s3.amazonaws.com/rogugagatuf/gafowotolifagadapekaj.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/alkane_functional_group_worksheet_1_answers.pdf
    • http://pamiwumewamem.epizy.com/latest_hollywood_movies_2018_in_english.pdf
    • https://s3.amazonaws.com/votubukaxogilix/41425734215.pdf
    • https://s3.amazonaws.com/bededuxotulapil/lozese.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_off0000ed2c.bin
57ab46f39808b4be579b2b2cd611fdf56eb08f04cb72da3eb87f66c0eddaec13
pdf-font-stream PDF embedded font (sfnt) at offset 0xED2C 5304 bytes
font_01_sfnt_off0000ff11.bin
373c6ec2cb576012eeeda008244eec6d96fc6e10bd93390ffde663ac3de19f24
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF11 11416 bytes