Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8179e370301fbce…

MALICIOUS

PDF

31.0 KB Authoring application: Scribus
MD5: 6be246fdef750c1f54634c616c966127 SHA-1: 556a034626610d41273b9d8962fe3a75281e2c7b SHA-256: e8179e370301fbcea4ca6de7d2aab62f1ecb7b8266636fdca235b6a14a20a980
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. The document body itself is largely unreadable due to encoding issues, but the presence of the link farm is the primary indicator of malicious activity.

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://omeganaturals.ca/uploads/1/3/0/5/130588551/f62e79a61e.pdf
    • http://muyolwillkahampi.org/uploads/1/3/0/7/130739234/1675034.pdf
    • http://greenwichluxuryproperties.com/uploads/1/3/0/4/130476255/tamerovanogewelexafi.pdf
    • http://vickyblog.info/uploads/1/3/0/7/130740050/f655c4e.pdf
    • http://mohawklumbercom.com/uploads/1/3/0/5/130588968/4141616.pdf
    • http://azguide.net/uploads/1/3/0/5/130540525/lazejiji-modarukaw-dazizo.pdf
    • http://www.seapwf.com/uploads/1/3/0/6/130639661/mogewitiposub_lozumid_wetadijibekem.pdf
    • http://gsbfconvention.org/uploads/1/3/0/6/130604651/8631497.pdf
    • http://halliwell.northsmithfieldschools.com/uploads/1/3/0/5/130551463/vonowofol_velizosiraka_bomise.pdf
    • http://bethlehemhouse.org/uploads/1/3/0/6/130639655/werixo.pdf
    • http://newarkvalley.org/uploads/1/3/0/5/130539348/megefetununizod.pdf
    • http://couchbnb.com/uploads/1/3/0/7/130739951/5605316.pdf
    • http://mrstruitt.com/uploads/1/3/0/3/130313015/130313015.html#how+do+you+subtract+an+integer+from+another+integer+without+using+a+number+line
    • http://azguide.net/uploads/1/3/0/5/130540525/lazejiji-modarukaw-d

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002232.bin
e1c2107ce35e165699612d228a4cd8d4b3f88695c2f00bed215317a6bcc9bb3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2232 7440 bytes

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