Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ef25795650deaed…

MALICIOUS

PDF

77.0 KB Created: 2021-06-06 22:12:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0364ff6292acfa466520f4ec37fdef0e SHA-1: 0dc5ad83d7ce5ffd544f4a02ed2a64f1f26fd9ce SHA-256: 8ef25795650deaedb0158db3f91eae2c4aac743cacfaec2478e26411bb333ad8
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'philabc.ru', which is likely a phishing or scam lure. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://philabc.ru/pbw?utm_term=cinta+de+moebius+filosofia
    • https://cdn-cms.f-static.net/uploads/4466661/normal_603b770751741.pdf
    • https://jaxufeloz.weebly.com/uploads/1/3/4/0/134013101/57cf0193815f.pdf
    • https://cdn-cms.f-static.net/uploads/4453333/normal_60234b5e2d90e.pdf
    • https://sozivaxuzafuzi.weebly.com/uploads/1/3/1/8/131856435/745504.pdf
    • https://cdn-cms.f-static.net/uploads/4416140/normal_604f075e486ae.pdf
    • https://static.s123-cdn-static.com/uploads/4365549/normal_6009242ca5106.pdf
    • https://foruvojupizife.weebly.com/uploads/1/3/4/3/134352799/8920791.pdf
    • https://cdn-cms.f-static.net/uploads/4388052/normal_603045838593c.pdf
    • https://static.s123-cdn-static.com/uploads/4416132/normal_5fcdf3c626960.pdf
    • https://static.s123-cdn-static.com/uploads/4461766/normal_5ff4583269f28.pdf
    • https://cdn-cms.f-static.net/uploads/4445869/normal_605eec367ac0a.pdf
    • https://static.s123-cdn-static.com/uploads/4403805/normal_5ff75ff1d499b.pdf
    • https://cdn-cms.f-static.net/uploads/4373992/normal_60356867a58c8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kufujibumufa.pbworks.com/w/file/fetch/144412470/6133062657.pdf
    • http://tevimunon.pbworks.com/w/file/fetch/144638451/how_to_fix_epson_wf_3640_error_code_0x97.pdf
    • http://zipiwume.pbworks.com/w/file/fetch/144544116/bagheli_lokgeet_video_download.pdf
    • http://xoxafepapesu.pbworks.com/f/what_are_bad_character_qualities.pdf
    • https://uploads.strikinglycdn.com/files/95d339f9-5ea3-4d2c-9f8f-828540428c78/netomatozifefitiwetovike.pdf
    • https://uploads.strikinglycdn.com/files/f508eb3d-84bb-403e-91f8-6c163e2d7196/how_do_i_change_the_audio_output_on_my_samsung.pdf
    • https://uploads.strikinglycdn.com/files/77425771-f4c9-4406-9a44-91ee880e105e/how_to_upload_pictures_to_google_photos_from_android.pdf
    • http://rukutuxeriro.pbworks.com/f/how_do_i_charge_my_ihip_soundpods.pdf
    • https://uploads.strikinglycdn.com/files/2083f304-2e24-48a4-8f3d-72f919d59576/kijimelaturubesigo.pdf
    • https://uploads.strikinglycdn.com/files/9ff35ee2-009d-4359-8c17-adaf21ab9e4b/85837898744.pdf
    • http://wejojixi.pbworks.com/w/file/fetch/144424287/voltage_drop_formula_for_dc_cables.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_off0000eb84.bin
a386e055b2a390b097aaa9b6ce49cfd3bdc5fcd7e0527ebd0b021a12d4a67fab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB84 5004 bytes
font_01_sfnt_off0000fc74.bin
8966fa542efbf00f9c2478575e91dcd79188cd58d32130eb26df4d1d04039395		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC74 13048 bytes

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