Malicious PDF — malware analysis report

Static analysis result for SHA-256 5474d52bad7afb49…

MALICIOUS

PDF

73.8 KB Created: 2021-03-25 03:01:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1eda090a96a3eb8975ea459d9d7e5173 SHA-1: 30fc12f942a26a8d7f555c296298ec3121699f77 SHA-256: 5474d52bad7afb4965868d360e00f779142eee6dabbf02599fc521c38a7be32c
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that masquerades as search results, likely to trick users into visiting a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious URL and the overall detection score strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/wix?keyword=waterloo+local+schools+levy+results
    • https://cdn-cms.f-static.net/uploads/4450907/normal_603e6a63ca077.pdf
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5fda5bb752af4.pdf
    • https://cdn-cms.f-static.net/uploads/4393759/normal_605bdc9b6d2d7.pdf
    • https://cdn-cms.f-static.net/uploads/4485016/normal_603850854e84f.pdf
    • http://sinozokotuw.iblogger.org/pioneer_avic_x930bt_factory_password.pdf
    • https://static.s123-cdn-static.com/uploads/4368742/normal_5ff3a0ba184b8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e55b6d56-12a3-4fe0-921c-3e80e0260f9f/55079459638.pdf
    • https://uploads.strikinglycdn.com/files/2af8d4d1-131a-46a7-82c0-6245f543cef0/atwood_hydro_flame_furnace_sail_switch.pdf
    • https://uploads.strikinglycdn.com/files/c4ccd73a-063c-4b7c-85c1-bd773459feed/60214830368.pdf
    • https://uploads.strikinglycdn.com/files/0c307683-6ff8-42b4-928c-55533b063dca/hebrew_interlinear_new_testament_free_download.pdf
    • https://s3.amazonaws.com/xukirizugukugi/xobid.pdf
    • https://s3.amazonaws.com/sewamos/kipibazezumirafusu.pdf
    • http://xurorovesi.epizy.com/baltimore_catechism.pdf
    • http://lesolasate.epizy.com/43779873385.pdf
    • https://uploads.strikinglycdn.com/files/a0e62756-2d29-4a31-bb40-4f3969b459af/xisexerozidowepu.pdf
    • https://uploads.strikinglycdn.com/files/546719c1-5a4f-4bfc-9273-5d243e2623f9/zeziv.pdf
    • https://uploads.strikinglycdn.com/files/a205e068-da95-4a96-b54a-99f622ee7171/el_llano_en_llamas_macario_cuento_completo.pdf
    • https://uploads.strikinglycdn.com/files/af29c1cf-fd60-423d-b505-b9c32d38b5ea/is_ipod_4th_generation_bluetooth.pdf
    • https://uploads.strikinglycdn.com/files/3c9a5a2d-b8be-4553-aa99-c1f11d804184/learn_quranic_arabic_grammar_online.pdf
    • https://uploads.strikinglycdn.com/files/e9c8bcec-a8d8-4796-8727-649db582c039/the_rules_of_the_safe_internet_usage_are.pdf
    • https://uploads.strikinglycdn.com/files/6233ab84-66d8-41cc-9046-1c72fdf1f18f/hp_photosmart_7520_installing_ink_cartridges.pdf
    • https://s3.amazonaws.com/tuletivotarupu/carrom_board_free_online.pdf
    • https://uploads.strikinglycdn.com/files/5a02e6af-7e1d-4fba-b259-070466d70269/44948466707.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e232.bin
1d287928e20c50f9ff2b73cfb906d4d9b4cf2d63ae6e977bb34e769bfc5ce527
pdf-font-stream PDF embedded font (sfnt) at offset 0xE232 5064 bytes
font_01_sfnt_off0000f376.bin
78c1895cf7fe6a8b2be98d206d2f6f51e150df8cac09d4f8b3044a63b7a7d6f6
pdf-font-stream PDF embedded font (sfnt) at offset 0xF376 11132 bytes