Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa7fc2af803c3c7…

MALICIOUS

PDF

71.1 KB Created: 2021-02-28 12:16:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e55f944f6c48a72472ade7e9257be056 SHA-1: 90e08a85faa154a9a158b56b8c9d0bf5ea6838bc SHA-256: 0fa7fc2af803c3c748ad97ba8376b6a5d487cc1dadc1c2b68ffc65b785bfd004
226 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1555 Credentials from Password Stores

This PDF document is classified as malicious by ML and ClamAV, exhibiting characteristics of a credential harvesting lure. It explicitly requests recovery secrets or saved passwords, aligning with phishing tactics. The embedded URLs, such as https://ponafet.ru/strik?utm_term=how+to+find+saved+password+in+gmail, likely lead to pages designed to steal user credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/strik?utm_term=how+to+find+saved+password+in+gmail PDF link annotation
    • http://shtangye.xyz/bipolar_spectrum_diagnostic_scale6wt8t.pdfIn PDF document text
    • http://dom-bita.org/fb_messenger_loginbr7cw.pdfIn PDF document text
    • https://cdn.sqhk.co/digiwejasipu/ajagidT/guess_the_picture_game_app.pdfIn PDF document text
    • https://cdn.sqhk.co/rirerujel/iicyhg7/beautiful_flower_scenery_wallpaper_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wexunaveb/igShncy/40266041075.pdfIn PDF document text
    • http://domensita.fun/bexowumijev44kl.pdfIn PDF document text
    • http://copyright-services-us.com/2k15_download_apkrx9wm.pdfIn PDF document text
    • http://christmas-gift.ru/college_student_biography_template1e73w.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/xagebitolewoluzifewolu.pdfIn PDF document text
    • http://reassurez-moi-fr.info/47326050nx8qn.pdfIn PDF document text
    • https://cdn.sqhk.co/samofetob/bwHQfhh/pubg_mobile_png_transparent.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gegenig.epizy.com/diaper_dermatitis_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/dailymotion_no_ads_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/mazilusotuvoresezozidid.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/atma_bandhuvu_movie_songs_free.pdfIn PDF document text
    • http://mowubuzedolilaf.epizy.com/19835514085.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA17 5472 bytes
SHA-256: 1d0ee402dbf1ec7eecabf0a8951df51babde7516e68d04cd968240737b6ddb42
font_01_sfnt_off0000ecbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBE 10196 bytes
SHA-256: 688f52d112843bb7176c62004d0a2223f7fe8a925eceef6604cc138de0e4b1c5

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