Malicious PDF — malware analysis report

Static analysis result for SHA-256 68529bb84fadfac9…

MALICIOUS

PDF

164.6 KB Created: 2021-01-13 05:51:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 4b38617813f78668d1a4fbcc927b7d22 SHA-1: d053778157a7bd43a97a18b816477c0b13811159 SHA-256: 68529bb84fadfac98850d052cad4bbb715cb03ff6884fdfd575a520c4f6e99e7
104 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The document body contains urgency lures, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffnew.ru/123?utm_term=karla+faye+tucker+find+a+grave PDF link annotation
    • https://site-1173706.mozfiles.com/files/1173706/yamaha_t-_1000_tuner_review.pdfIn PDF document text
    • https://saritubix.weebly.com/uploads/1/3/4/5/134507132/suwitogi.pdfIn PDF document text
    • https://cdn.sqhk.co/nisosawero/tCjh9Yc/enigmatis_2_the_mists_of_ravenwood_switch_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377908/normal_5ff32f8807bab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388422/normal_5f9bf36ce65ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375203/normal_5fc99cde2a9a9.pdfIn PDF document text
    • https://vufujisuwe.weebly.com/uploads/1/3/1/4/131437295/vogumuzasenusi-felofowevilabuk-tusukavif.pdfIn PDF document text
    • https://site-1173692.mozfiles.com/files/1173692/b_daman_crossfire_vol_15.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414167/normal_5fcfadceecf3f.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/nefomojuwet/boca_vs_river_hoy_formaciones.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/wawabitilibobuwefovumupe.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/data_structure_algorithms_tutorial_tutorialspoint.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/flower_background_wallpapers_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/jizevufifewusowiv.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/have_an_answer.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_off000245f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x245F3 5208 bytes
SHA-256: 84f96d29e748ec0dce5ab5cae333d51ba46d705e1c99278f54cfeebf1d8b0961
font_01_sfnt_off000257cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257CD 14012 bytes
SHA-256: 55e4f9fe375bc09d20aea3b4f38bfd518de66101dc6cbafc31caa65392bb7c03

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