Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7260ed9a962c20…

MALICIOUS

PDF

35.2 KB Authoring application: Adobe PDF Library 9.0
MD5: 4299ee2067d53c0e08e728efd16952e4 SHA-1: 04fb73dcb600d777bdb19e745a38edf23c35f2a0 SHA-256: aa7260ed9a962c2028cf1a902c7529cfb280a65416b73a0cf82ca9da7c568036
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary malicious URL identified is http://berryflats.net/uploads/1/3/0/6/130603761/2384155.pdf. This suggests a phishing or SEO manipulation attack where the document acts as a gateway to a network of potentially malicious sites. No scripts were extracted, and the document body content was heavily truncated and obfuscated, limiting further analysis of the specific lure.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://berryflats.net/uploads/1/3/0/6/130603761/2384155.pdf
    • https://pabifuzeb.weebly.com/uploads/1/3/0/5/130543054/mejiwivale-rofunalusotigoj-rated.pdf
    • http://ezekius.net/uploads/1/3/0/6/130621530/8241642.pdf
    • http://mysitelive.org/uploads/1/3/0/3/130379354/e780e623ac1cd.pdf
    • http://nlightnstudio.com/uploads/1/3/0/4/130476564/130476564.html#atkin+diet+menu+malaysia

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000105a.bin
ebfaff3b0534c4ec4ee73b7b9f9c19434cb843cf3616b24feb40bc29de82f4ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105A 8884 bytes

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