Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0afef722c85d8bb…

MALICIOUS

PDF

75.3 KB Created: 2021-07-14 02:07:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: dafcaff079b80f60db789c4ff6c1ceaf SHA-1: 884b200be6c356874c55cc505af1e28f9da8bcdc SHA-256: a0afef722c85d8bb8333cd1648c3d03041b2dd5c5afaa81623db538e228e4438
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan threat. It contains embedded URLs, one of which is associated with a lottery results lure, suggesting a social engineering attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the ML detection point towards a malicious intent, likely to redirect users to a compromised site or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7746

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://feedproxy.google.com/~r/sq/ugae/~3/AnJPYMJXbyQ/square?utm_term=lotto+results+19+august+2020
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e87afa650ee476ad26b012/1625848570190/xuzedegibirabumo.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec85635c244202458b97dd/1626113380013/tri_cities_daily.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec91e57a6a16267649c8a1/1626116581723/13675463546.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e767e7e055dd31fd065943/1625778152083/extraembryonic_mesoderm_is_derived_from.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c3ab.bin
72ab5370607df8cda16cdf6c4da604688c5130bed17effda14e3de638f7fde2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AB 10608 bytes
font_01_sfnt_off0000dc3b.bin
54af2956a73ff27ff9fe87a9333d9dafc230af8dbeb5fbd1d6bc446d1681ea1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3B 17268 bytes
font_02_sfnt_off0001099d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1099D 16792 bytes

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