Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd647ca930d09b34…

MALICIOUS

PDF

83.7 KB Created: 2021-03-15 21:21:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bf5dae885926928e250388cb2481b14 SHA-1: 9f0758e3dfb5c536f2846c5fb71bbe8595caa199 SHA-256: dd647ca930d09b34d277263a655cb061c283c094175f525336eaae9228a2912d
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to 'https://nipisod.ru/aws?utm_term=powershot+pro+electric+staple+gun+not+working', which is likely used to redirect the user to a malicious site or download a payload. The document body, though heavily obfuscated, contains references to product names and application details, suggesting a lure. No scripts were extracted, but the presence of external URIs and the overall detection profile indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://nipisod.ru/aws?utm_term=powershot+pro+electric+staple+gun+not+working
    • http://tozepefaj.iblogger.org/98135353347.pdf
    • http://idem-peshkom.ru/404685661980gklz.pdf
    • https://bulodogezuso.weebly.com/uploads/1/3/4/8/134868115/tudufuf_fafaxisabib.pdf
    • https://fijomenameti.weebly.com/uploads/1/3/0/8/130874411/pogisim-zofomixetuxotet.pdf
    • https://cdn-cms.f-static.net/uploads/4370764/normal_6031d0d45dd8b.pdf
    • https://cdn.sqhk.co/sategexarom/gjijbji/swamp_attack_cheats.pdf
    • https://cdn-cms.f-static.net/uploads/4450876/normal_6035ee2927d3d.pdf
    • https://cdn-cms.f-static.net/uploads/4423430/normal_600aca54918a4.pdf
    • http://lg-copyright.com/wuwudasojopoxuvefatozaswtdm7.pdf
    • https://static.s123-cdn-static.com/uploads/4487623/normal_5ff340853de23.pdf
    • https://cdn.sqhk.co/guxuboru/jjjhjeQ/25770756912.pdf
    • https://cdn-cms.f-static.net/uploads/4492278/normal_602a43f0e512a.pdf
    • https://jixejuterekafiw.weebly.com/uploads/1/3/4/5/134508928/dopofi-kowifupusizeton.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/liwara/fakixekekajivodigukizuxan.pdf
    • http://nutimuratibuzur.epizy.com/aastha_movie_songs_free.pdf
    • http://jumesuzev.epizy.com/78080325592.pdf
    • https://s3.amazonaws.com/rezugekolaba/rotonipuk.pdf
    • http://luselobek.epizy.com/shutterstock_er_no_watermark.pdf
    • https://s3.amazonaws.com/diwitapezu/45722648236.pdf
    • https://s3.amazonaws.com/veraxawewib/diwebovav.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_off000106e8.bin
456444d177fac3ac82e1759131258424294ed2ed3c31cd698b36f2014f7e5a29
pdf-font-stream PDF embedded font (sfnt) at offset 0x106E8 5352 bytes
font_01_sfnt_off0001192d.bin
4f62a1debe5ceb3aab1ccb3007eb5da90c8a1c259ff4893fae97ad9b1ded4738
pdf-font-stream PDF embedded font (sfnt) at offset 0x1192D 12188 bytes