Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4437a17e96855a…

MALICIOUS

PDF

75.9 KB Created: 2021-02-11 14:46:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 978e10d7046d322f7b26c9281702dab7 SHA-1: 4fb2eabcaf8ef9277cce9359af073abef40df89d SHA-256: fa4437a17e96855ac2ed9beb650c9af9eabd68cfc102cb4e1f06f19a39be5396
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://druttle.ru/123?utm_term=lowes+swot+analysis` suggests a phishing or credential harvesting attempt, disguised as a SWOT analysis document. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are strong indicators of a malicious document, likely intended to trick users into downloading further malware or divulging sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/123?utm_term=lowes+swot+analysis PDF link annotation
    • https://cdn.sqhk.co/rureroso/eaKhjhi/lightroom_presets_free_download_mobile_malayalam.pdfIn PDF document text
    • https://cdn.sqhk.co/fokapalo/fTjhgdv/dunkin_donuts_charli_drink_ingredients.pdfIn PDF document text
    • https://cdn.sqhk.co/gukawaki/d8uY7je/29627829476.pdfIn PDF document text
    • https://cdn.sqhk.co/mepowokugo/mjwgjgd/aesthetic_twitter_logo_purple.pdfIn PDF document text
    • https://cdn.sqhk.co/kagelemovo/jhWia2J/halloween_day_party_elmvale.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/haLuja1/green_bay_wi_weather_hourly.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/phihcO9/kimanimosedexilutos.pdfIn PDF document text
    • https://cdn.sqhk.co/ledodatefu/CKhjrjb/zen_1010_block_puzzle_game_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459926/normal_600fac364fea2.pdfIn PDF document text
    • https://cdn.sqhk.co/geruxibab/iaQhgmk/xogidositij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/52043081086.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/repuvuxijum.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/contemplate_on_something_definition.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_off0000f049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF049 4716 bytes
SHA-256: 7e3b180ad1c69e61f9a013442cb0b510aeb2b4f30eba6b2503c06f3e74fa8243
font_01_sfnt_off00010082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10082 10108 bytes
SHA-256: 3eaaf8208e0cb5593552c7571918f85d9fece002954d6fde7f8090b64d47c0e5