Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dbaba9f8469e687…

MALICIOUS

PDF

70.4 KB Created: 2021-01-11 13:12:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30b47146154d89fb3634557a72c5b488 SHA-1: 904602983d0e5faa06cc51468c771ac4547e1de9 SHA-256: 7dbaba9f8469e687cbf93c3bbfe66d2685ec5b3e1104ed900a94bb99b84c9150
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged by multiple heuristics, including a critical alert for malicious redirector links and a machine learning model. The document contains numerous embedded URLs pointing to disposable domains, suggesting a phishing or malware distribution campaign. The presence of a malicious redirector link indicates an attempt to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/aws?utm_term=at+bat+premium+apk
    • https://site-1171882.mozfiles.com/files/1171882/6757226821.pdf
    • https://site-1202138.mozfiles.com/files/1202138/11156171259.pdf
    • https://gobisenuginofaz.weebly.com/uploads/1/3/4/4/134490447/5277088.pdf
    • https://cdn.sqhk.co/gadukupuwe/hhgiK5l/ragowawut.pdf
    • https://site-1168029.mozfiles.com/files/1168029/retroarch_ps2_snes_core.pdf
    • https://verobegami.weebly.com/uploads/1/3/0/8/130814611/a16745e36c48985.pdf
    • https://site-1176184.mozfiles.com/files/1176184/18027255259.pdf
    • https://cdn.sqhk.co/mugejufunij/j6jd9ia/xedojemobuja.pdf
    • https://sejumajofejopib.weebly.com/uploads/1/3/2/7/132740214/tuzomi-nubugagizupegug-vupanufipebebuk-lilarexe.pdf
    • https://site-1219602.mozfiles.com/files/1219602/toponiwupunuxefepa.pdf
    • https://site-1236126.mozfiles.com/files/1236126/scapegoat_theory.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/luworizesupox/android_app_itinerary_travel.pdf
    • https://s3.amazonaws.com/datarofapakil/drivers_manual_adot.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_off0000d768.bin
1950d6244c8223bd96973de9103c335045b4f50cbca9951849047087be882887		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD768 4948 bytes
font_01_sfnt_off0000e82b.bin
f5b80f9cce3ed38c43bfd58e569ed66e015329a455d0b31af642516df5bca4b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE82B 10800 bytes

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