Malicious PDF — malware analysis report

Static analysis result for SHA-256 51d8f904ad561381…

MALICIOUS

PDF

210.7 KB Created: 2021-05-27 21:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: de34960f4f6aaab5dbb0531959cc9c3b SHA-1: a92c1fb4d1821bc78b1c8b9f5c0c314926ce7539 SHA-256: 51d8f904ad5613812ee011b4debb863306ae2eb66d33abd22aab59818712bb61
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 phishing or trojan payload. It contains an embedded URL that leads to a suspicious domain, likely intended to host or redirect to malicious content. The document body, though heavily obfuscated, suggests a lure related to a 'size guide'. No scripts were extracted, but the presence of embedded URLs and the overall detection profile strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://ponafet.ru/123?utm_term=giant+propel+size+guide PDF link annotation
    • https://zopigokarage.weebly.com/uploads/1/3/4/3/134346298/zewepoteruluririkib.pdfIn PDF document text
    • https://faxulifil.weebly.com/uploads/1/3/4/7/134731484/fofolegifa.pdfIn PDF document text
    • https://jikevumuvovidu.weebly.com/uploads/1/3/4/3/134324483/dozebesovumajo.pdfIn PDF document text
    • https://vemewibikem.weebly.com/uploads/1/3/0/7/130776349/jogawawoxab_kuzuniri_fufokoxeg_tumemun.pdfIn PDF document text
    • https://xidiziwuzubiwon.weebly.com/uploads/1/3/4/6/134653180/9eb588e1c.pdfIn PDF document text
    • https://nidapekosoko.weebly.com/uploads/1/3/2/7/132740606/1736108.pdfIn PDF document text
    • https://pusekejewoxabir.weebly.com/uploads/1/3/4/6/134647321/rusunufiwodo_xitejupose_siwerujizumur.pdfIn PDF document text
    • https://panulozeti.weebly.com/uploads/1/3/5/3/135351273/3eb05b429ca906.pdfIn PDF document text
    • https://zusonugen.weebly.com/uploads/1/3/5/3/135305237/1de656f.pdfIn PDF document text
    • https://vizefibamoraxob.weebly.com/uploads/1/3/4/6/134613498/fudadeke_bumaga_telepo_gixiwenowobizu.pdfIn PDF document text
    • https://poxesogu.weebly.com/uploads/1/3/4/8/134854809/ponezulanuketov.pdfIn PDF document text
    • https://gomamuna.weebly.com/uploads/1/3/5/3/135304292/074d2280392ca3c.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/7126f382-1c3a-46c7-a70a-24fa0a2efc4a/unspoken_feelings_of_a_gentleman_2_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a09ac959-b441-4b23-a370-043ffa0954ed/cisco_vpn_client_windows_10_20h2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5780cd26-1d04-426f-b57d-3fc068f5d066/how_much_do_childcare_workers_get_paid_in_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34e5afe6-60ed-428e-8659-fbdb0c5c3e8a/que_es_una_composicin_centesimal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/083eef62-68d7-4866-9ae0-1e195a638647/cutting_edge_pre_intermediate_teachers_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99c9af42-a6f3-46ae-9ba1-8c220d38396f/figurative_language_in_the_great_gatsby_chapter_8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8d1e21a-aba2-4f37-8afc-bc29dc1e1ab6/49432090943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9defc6a-79f4-4486-bc57-94e0f7adb62b/gevogajimewomaj.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_off0002f4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4B4 5088 bytes
SHA-256: 15a3e91fcb8d313484b23b313a99bf7c0a05422dbef07db9bffb66c36dbe27f6
font_01_sfnt_off00030612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30612 12576 bytes
SHA-256: 6dfb9d59c269042e28e1721cf1e7780f6490f587b56a1c36686d26b75242cf28
font_02_sfnt_off00032f28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32F28 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

Open this report in the interactive analyzer, or submit your own file for analysis.