Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3bc004b874cf3f…

MALICIOUS

PDF

92.3 KB Created: 2021-03-18 09:08:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 41ce25cee221e7d15b4b21586cf874e8 SHA-1: 8517cb6b540620722355e82c8d2140c09c574c56 SHA-256: ad3bc004b874cf3f69314a7eafac8875be4e40bdd3540890dd04f6eb4f8632c0
104 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 embedded URLs and a heuristic indicating a visual download button, suggesting a phishing or social engineering lure. The presence of external URIs like 'https://jumiwimov.ru/wix?keyword=pelco+sarix+ime+manual' indicates an attempt to redirect the user to malicious content or download further payloads.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jumiwimov.ru/wix?keyword=pelco+sarix+ime+manual PDF link annotation
    • http://sluzhba1.net/59534364706z1255.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/pojilo.pdfIn PDF document text
    • http://nipijapogila.sportsontheweb.net/bomokefonapi.pdfIn PDF document text
    • http://tezijexipilimo.getenjoyment.net/37094851206.pdfIn PDF document text
    • http://xemokajoled.medianewsonline.com/algebra_1_eoc_practice.pdfIn PDF document text
    • https://povarudoro.weebly.com/uploads/1/3/5/3/135324530/663196.pdfIn PDF document text
    • https://volokosebu.weebly.com/uploads/1/3/4/8/134871595/wuximotuwinubavoz.pdfIn PDF document text
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/wudom.pdfIn PDF document text
    • http://sodahq.club/40887216247rceyq.pdfIn PDF document text
    • http://leninuludobodu.mygamesonline.org/surikazisunelenu.pdfIn PDF document text
    • http://evilcheats.fun/how_to_measure_love_psychology68z9e.pdfIn PDF document text
    • http://juborad.mywebcommunity.org/4892308916.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/3957746339.pdfIn PDF document text
    • https://dajidavibaral.weebly.com/uploads/1/3/4/6/134606929/xojiku.pdfIn PDF document text
    • http://sunny-web.ru/71531254803egjn3.pdfIn PDF document text
    • http://salleapp.xyz/how_to_make_a_kitten_friends_with_a_dogf4uod.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/xedewofuretujo/telirerodafomabip.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/japitepes.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/salasu.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/blood_circulation_diagram_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/aplikasi_kamus_bahasa_jawa_krama_inggil.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_off00012913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12913 5012 bytes
SHA-256: 61991f219a87c7d305cf0c2399d652ded6f4a5699e8247309bb4c9641e34613c
font_01_sfnt_off00013a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A12 11932 bytes
SHA-256: 5e1d172c040c8815b8940e734448e281cdd5536f96be22a146bf1a1f320cd4e0