Malicious PDF — malware analysis report

Static analysis result for SHA-256 285164d67601a13c…

MALICIOUS

PDF

77.6 KB Created: 2021-03-24 19:54:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24ce20f7ee2add2d49c99b3c8d76a3d7 SHA-1: 7d53dd46c5e16fca49783dc98e32c796008fca19 SHA-256: 285164d67601a13c6d0ccd2a003ce1ca0f8c92ac49c0d89207bb34da5f0f4647
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a site offering a free movie, a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/wix?keyword=weathering+with+you+free+full+movie+reddit
    • https://cdn-cms.f-static.net/uploads/4405186/normal_60263ab5a76cb.pdf
    • https://cdn-cms.f-static.net/uploads/4391599/normal_603ad2ed0f460.pdf
    • https://cdn.sqhk.co/zexupibo/3WqShgh/7083504281.pdf
    • https://static.s123-cdn-static.com/uploads/4369909/normal_6005d24be55b5.pdf
    • https://nisivijuwowog.weebly.com/uploads/1/3/0/8/130813757/b35b94.pdf
    • https://cdn-cms.f-static.net/uploads/4416318/normal_605387c7ecb26.pdf
    • https://jazakeramexevam.weebly.com/uploads/1/3/4/6/134615015/40f76a268385b7e.pdf
    • https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/xikerutokur-juvavazarozexe.pdf
    • https://static.s123-cdn-static.com/uploads/4381321/normal_5fec5795adc9d.pdf
    • https://zoviwifave.weebly.com/uploads/1/3/6/0/136053666/9835334.pdf
    • https://cdn.sqhk.co/suwuwewazaka/bGjibuq/fokikulutujowexoderemode.pdf
    • https://cdn.sqhk.co/gazegarov/GWgeKgf/devil_ninja_youtube.pdf
    • https://cdn.sqhk.co/mekurapiw/G3Hetij/lesisipopoladajafojibubux.pdf
    • https://static.s123-cdn-static.com/uploads/4371524/normal_5fe2ccd0aeb8f.pdf
    • https://cdn-cms.f-static.net/uploads/4424647/normal_5fd776d6cf2bb.pdf
    • https://static.s123-cdn-static.com/uploads/4449769/normal_5fc71d71376a9.pdf
    • https://cdn.sqhk.co/befozaxulot/4qk0bKR/fevuwojapuxoveranotuge.pdf
    • https://gafokogem.weebly.com/uploads/1/3/0/8/130874161/boxezi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2fe11e44-fd7b-4f47-8dbf-9e134acf4b57/sense_and_sensibility_summary_shmoop.pdf
    • https://uploads.strikinglycdn.com/files/ca19fe64-cbfe-4818-be30-b9f340d0b91e/kubota_zd326_service_kit.pdf
    • https://uploads.strikinglycdn.com/files/928678ef-0a4c-41a5-849a-dc6681ed2ed4/meade_497_autostar_hand_controller.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_off0000edbc.bin
718fcfbab57b605be7227e658f7cdc9a6c659c63f91aee629180a3caa87262be
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBC 5408 bytes
font_01_sfnt_off0001001e.bin
dc8501ef0af964d737706c86fda45563f53554e80a2ebae600cf32b707c23639
pdf-font-stream PDF embedded font (sfnt) at offset 0x1001E 11776 bytes