Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1f9f93fd0e78be…

MALICIOUS

PDF

86.6 KB Created: 2021-03-22 14:23:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c28c0279f227b6d464c189cb0fb86e81 SHA-1: e5fcee3ee04ccec719e23149050cc05795d1fd04 SHA-256: 9b1f9f93fd0e78be8740d8dab77d25c33ddbfd47538151a35e46bfff8435d7c1
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file was detected as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam. It uses a lure related to a 'low sugar food shopping list' and prompts the user for a password to access an archive, a common tactic to bypass security filters. The embedded URL points to a suspicious domain, likely serving as a distribution point for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://botokaw.ru/award?keyword=low+sugar+food+shopping+list+pdf
    • http://hookup755.fun/what_are_the_common_characteristics_of_the_main_characters_in_the_selectionom6lp.pdf
    • http://fufirewavit.getenjoyment.net/wings_of_fire_roblox_wiki_silkwing.pdf
    • http://marketitaly.pro/fl_studio_10_producer_edition_tutorialvi2ki.pdf
    • https://felonuwonab.weebly.com/uploads/1/3/0/8/130814100/rumifukokorob-xajaliwij-kepatobalu-xobavo.pdf
    • http://helpcenterbusiness.xyz/wrat_4_standard_scores_to_percentilesznwjg.pdf
    • http://artdebug.site/volupijope7v0pg.pdf
    • http://zuregazezoral.mygamesonline.org/easy_smoothie_recipes_with_yogurt_and_fresh_fruit.pdf
    • http://zilitimo.getenjoyment.net/realisasi_apbn_2020.pdf
    • https://dodawuwaxa.weebly.com/uploads/1/3/4/3/134305805/zamerilagumiju.pdf
    • https://xesinuvukuwufo.weebly.com/uploads/1/3/0/7/130776104/jagijimufinux.pdf
    • http://strongcreditscore.info/13319034247oy937.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://siwavubixuvavil.rf.gd/define_agrarian_reform_law.pdf
    • http://vilepobafomunow.atwebpages.com/samsung_srd-1676d_default_password.pdf
    • http://saduzubut.rf.gd/funny_questions_and_answers_jokes_in_tamil.pdf
    • http://xuletesowugi.epizy.com/80172110159.pdf
    • http://wetiruri.epizy.com/xazulupotulumafad.pdf
    • http://kirawolus.rf.gd/10264938455.pdf
    • http://susakulenazoj.rf.gd/significato_bandiere_nautiche.pdf
    • https://s3.amazonaws.com/polojuliragam/59089356796.pdf
    • https://s3.amazonaws.com/zidenigad/61619993538.pdf
    • https://s3.amazonaws.com/radubozufiwo/36027760484.pdf
    • http://novosumagib.epizy.com/milodagewarokawatizo.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_off000112fc.bin
1fd88ad053833a997239eb8c3c5d1007a506ea4e3269f3e3c962004e3b7a18f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112FC 5336 bytes
font_01_sfnt_off00012534.bin
8dc6e84efb08148e69c26e2887a0debbd2cd6fe03719b9a29e950f35be19b343		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12534 11216 bytes

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