Malicious PDF — malware analysis report

Static analysis result for SHA-256 27bf986e2e60af9f…

MALICIOUS

PDF

82.3 KB Created: 2021-03-16 03:34:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 3b5a0938d15eaa2ff9f20b5c8cf1473b SHA-1: d2717ba486fc7200d872b3afab4717fb1ce1e7e0 SHA-256: 27bf986e2e60af9fb6ff43f9120fd4820987751ec07f8f966fe396bea99ddc8f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, 'lozipotod.ru', which is likely used to host phishing content or a secondary payload. The document body, though heavily obfuscated, suggests a lure related to a movie analysis, consistent with social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=analisis+semiotico+de+la+pelicula+el+nombre+de+la+rosa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421207/normal_604da77de134b.pdfIn PDF document text
    • https://cdn.sqhk.co/narobalof/asnKigA/fanozopozujujajonozito.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/ghcqXE0/mumopatiza.pdfIn PDF document text
    • https://cdn.sqhk.co/livatunozasu/khdFrjb/minecraft_earth_release_date_day.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/DgchhTO/vajibutezenigivegisub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385014/normal_5fee8c2907322.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372719/normal_602c7de62e56c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501794/normal_5ffcf83814993.pdfIn PDF document text
    • https://cdn.sqhk.co/sojuzafu/jiHUiiQ/poopsie_slime_unicorn_poop.pdfIn PDF document text
    • https://cdn.sqhk.co/seseniluvus/hegfidF/10128670824.pdfIn PDF document text
    • https://cdn.sqhk.co/jexozumumanu/dhgjaD4/ronat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426075/normal_5fe0c69cb41b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453537/normal_600e5dd4ab549.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/f5ieHZ1/7295261762.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403805/normal_5fe162795cbc6.pdfIn PDF document text
    • https://cdn.sqhk.co/wixefawoz/eCPgchi/fuvenupaxevunitigi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/925d7576-5c0b-47f9-bb23-e124ebee8a1f/7215699509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94fdd48b-211a-48d9-a9c0-f06f9d545026/vuvepobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da52332e-e944-4388-82e7-bba27957653c/6401019887.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/3._3_cell_organelles_study_guide_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/60519084187.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BB 5232 bytes
SHA-256: c6c1e7462182841307199873ac1a674127b3cf7036d6bc2a592ebf021427d90b
font_01_sfnt_off0001055d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1055D 11620 bytes
SHA-256: 8dd8ac3068ee82b10c6670d8aab716a1fb0ffb3b258e2e6f30d0f4e40511fe95
font_02_sfnt_off00012b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0F 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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