Malicious PDF — malware analysis report

Static analysis result for SHA-256 b64b44343842b85a…

MALICIOUS

PDF

45.3 KB Authoring application: PDFedit
MD5: 74d6d7786b083cc3403c86712721974f SHA-1: 23e7eed5fd4696ea8e6b66460430c8da8e6e2ef0 SHA-256: b64b44343842b85a89f430c77ae7741caf52d588d5fd21c57a61a6a3d974325e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, all structured similarly with numeric or descriptive slugs, suggesting a coordinated effort to distribute content or phish users. The ClamAV detection further confirms the malicious nature of the file, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, but the extensive link farm is the primary indicator of malicious intent.

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://drgnwear.club/uploads/1/3/0/5/130543333/tikagekapupuno.pdf
    • http://appraisalprogroup.com/uploads/1/3/0/6/130621651/1013021.pdf
    • http://eddiecastle.com/uploads/1/3/0/4/130488197/8041141.pdf
    • http://www.sza-spa.com/uploads/1/3/0/6/130640028/nikoxawuzakanox.pdf
    • http://realty33nj.com/uploads/1/3/0/5/130540134/9862016.pdf
    • http://mindmasterssociety.com/uploads/1/3/0/5/130551303/fikapokivejureg.pdf
    • http://cfnbr.com/uploads/1/3/0/2/130273626/45aa8418ff3.pdf
    • http://motionautodetailing.net/uploads/1/3/0/2/130270934/viriz_gubijodem_nudesomuvasax.pdf
    • http://p4rti4ls.ltd/uploads/1/3/0/4/130489564/sepajojaxudatakev.pdf
    • http://experiencetrailhead.com/uploads/1/3/0/6/130640239/ba7dc52a27c6.pdf
    • http://oginnovate.com/uploads/1/3/0/8/130814803/silokatubu.pdf
    • http://cypress-it.com/uploads/1/3/0/7/130739056/5369613.pdf
    • http://mail.aseniorsensitiveservice.com/uploads/1/3/0/6/130605358/rigasixu.pdf
    • http://khushalishah.net/uploads/1/3/0/6/130605089/ruzuviwabavosif.pdf
    • http://cesun2018.org/uploads/1/3/0/6/130605116/lababitisajawu-vifimulapiwag-pinifiju.pdf
    • http://ehrbutton.com/uploads/1/3/0/7/130776111/4faea37f.pdf
    • http://micabotanicals.com/uploads/1/3/0/5/130542940/5923401.pdf
    • http://mountainxllc.com/uploads/1/3/0/6/130621784/44959.pdf
    • http://santafedatahub.com/uploads/1/3/0/5/130551864/3330948.pdf
    • http://destinationweddingsbigisland.com/uploads/1/3/0/8/130814241/duvufuwobatokibunaf.pdf
    • http://chitchatthisthat.com/uploads/1/3/0/6/130639449/nalulep_pelazobem_bewenukaweki_konazojupabirop.pdf
    • http://adulosangeles.com/uploads/1/3/0/3/130379150/jemipuvit.pdf
    • http://baijiabowangshangyule.br3h.com/uploads/1/3/0/8/130874509/130874509.html#comment+joindre+un+fichier+pdf+dans+un+mail

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f00.bin
e98e8cfd12a8d741e609f4ca487b5c2e61d3ccb2c83ff8315e61419ece7610fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F00 9328 bytes

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