Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3c1938ed547e1d…

MALICIOUS

PDF

69.3 KB Created: 2020-12-06 02:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e22dd7a7f21053fbed8c8618aaf1117 SHA-1: 1efb14e9d7d3d6f29e95a3a2d8f87fac0dd8c5da SHA-256: 8d3c1938ed547e1d160bbe1464b2ab0edb56f8d404352a7e379d8f5d2aadaef7
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This URL is likely used to lure users into a phishing scheme or download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=carl+g+jung+libros+pdf
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/daminugesepuva_jabaxurijogo_nipoben_napez.pdf
    • https://duwusejirut.weebly.com/uploads/1/3/4/3/134370685/2512205.pdf
    • https://mawakigimewu.weebly.com/uploads/1/3/4/8/134875352/9449304.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/cd1040c1-e1df-4cdd-a6ec-74227de029ce/munudigugutewujedawewogux.pdf
    • https://uploads.strikinglycdn.com/files/f0d108e1-e321-4ec3-a7ee-ce39852c1179/lifoxezesig.pdf
    • https://s3.amazonaws.com/defujo/befumofivegebu.pdf
    • https://static1.squarespace.com/static/5fc2b818a13a450babffe01a/t/5fc89f49f97c193540f46a9e/1606983498759/globe_rewards_app_apk.pdf
    • https://static1.squarespace.com/static/5fc4dac4ec917750a3f10bd2/t/5fc876d713f8d93bf205d770/1606973144321/64884755374.pdf
    • https://s3.amazonaws.com/tedowafomaru/metabolismo_celular_anabolismo_y_catabolismo.pdf
    • https://s3.amazonaws.com/lakadutof/61784811192.pdf
    • https://uploads.strikinglycdn.com/files/9e01886f-6178-401b-ac87-c7f14690e2d5/98496985213.pdf
    • https://uploads.strikinglycdn.com/files/c8355db6-2f93-4e4b-86a0-9f8d62f2b721/blade_and_soul_assassin_guide_for_beginners.pdf
    • https://s3.amazonaws.com/woxotopapozokev/tamil_dubbed_animation_cartoon_movies_free.pdf
    • https://s3.amazonaws.com/wivunonovef/don_t_escape_2_walkthrough_all_endings.pdf
    • https://uploads.strikinglycdn.com/files/709e5880-8471-440a-a06f-bf3be76bd4d3/8456568256.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_off0000d477.bin
9e0c4c83b0ec4d14792d451c7af5c774b87bba1349b8c2d56a6de7168efe64d7
pdf-font-stream PDF embedded font (sfnt) at offset 0xD477 5328 bytes
font_01_sfnt_off0000e69f.bin
f36e558ac15c7b81870fe53cfc9edde2f950925455183a2469f0042992c39af7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE69F 10096 bytes