Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a5d48832da80cf1…

MALICIOUS

PDF

38.8 KB Authoring application: pdf-parser
MD5: 962d1090a67b5a1ab7e37669176b7d74 SHA-1: f9a0b54cb8ebc8672592d05c85d82012ee573e5a SHA-256: 0a5d48832da80cf1d84e3e86a684e2f6d991a09e34bc7347bfc4a2506493a2d5
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically related to phishing. The embedded URLs are likely used to redirect users to malicious sites or to distribute further malware, aligning with a phishing or SEO-based distribution tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://fazenda2.ru/uploads/2020/01/28/xepodekawexexom_venemut_gezutisano.pdf
    • http://ncslibrary.org/uploads/1/3/0/5/130543386/popimupagepo.pdf
    • http://morphsparchd.com/uploads/1/3/0/3/130313111/f72fe8.pdf
    • http://mrskramlsclass.com/uploads/1/3/0/2/130289340/ea46945.pdf
    • http://muscleeasy.com/uploads/1/3/0/4/130483583/siloriwusap_gupasomexap.pdf
    • http://lasvegashandyman.org/uploads/1/3/0/2/130272084/sasulabak.pdf
    • https://tufodafaleb.weebly.com/uploads/1/3/0/5/130590361/tivobiduz_gutowixibedu_jogavobiz.pdf
    • http://10mandamientos.weebly.com/uploads/1/3/0/6/130639082/pukevajesa-faberowopapizis.pdf
    • http://mattycake.com/uploads/1/3/0/5/130590618/6920203.pdf
    • http://themindfulchristian.net/uploads/1/3/0/5/130546803/8549558.pdf
    • http://lozu.cabinet-otpbank.info/uploads/2020/01/28/2995597.pdf
    • http://mimariposadesigns.com/uploads/1/3/0/2/130288751/6b2c132.pdf
    • http://notionsbynonna.com/uploads/1/3/0/6/130605515/jusevep.pdf
    • http://colddiamnd.com/uploads/1/3/0/5/130589431/130589431.html#programe+tv+online+romanesti+gratis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013a6.bin
e6c5b67c3a00123604495151eb218b72d93e7f7405464019f6118567e1494a74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A6 8340 bytes

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