Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a5e26f94b1d2413…

MALICIOUS

PDF

36.9 KB Authoring application: LibreOffice
MD5: 7f8e434b8b7d89a44ddc6ea8449f44ca SHA-1: cc97e574c6bb22bd6c2dda3fae28ccea7f6234ba SHA-256: 3a5e26f94b1d2413a28d7ad5eb9d87f0006b628c2d6b367d1c1ed67ed2dd3ec3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further indicates a malicious intent, likely related to phishing or traffic generation. The document body text, though partially corrupted, mentions 'Exam ref 70-764 administering a sql database infrastructure free pdf', suggesting a lure to obtain potentially valuable information or access under a false pretext.

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://vwear.net/uploads/1/3/0/7/130740590/351c2.pdf
    • http://mia-and-darrell.com/uploads/1/3/0/6/130639777/lomumavo-tunodifutowez.pdf
    • http://rachelhjohnston.com/uploads/1/3/0/6/130639948/f1c015f.pdf
    • http://mydearestbaby.com/uploads/1/3/0/5/130540049/03fa332e8a87.pdf
    • http://crtropicallivethedream.com/uploads/1/3/0/4/130476632/86fdda.pdf
    • http://rem5vrlab.com/uploads/1/3/0/3/130313746/5786094.pdf
    • http://draasman.com/uploads/1/3/0/4/130436441/6132187.pdf
    • http://boatinsurance.wales/uploads/1/3/0/6/130604525/niperumifanofej.pdf
    • http://carneliansunsetproject.com/uploads/1/3/0/5/130550910/kagoso_dotalubiwilazin_bukek.pdf
    • http://twocities.net/uploads/1/3/0/6/130605167/jutijumojet.pdf
    • http://moosemanormi.com/uploads/1/3/0/6/130604595/d65af3f.pdf
    • http://nerine.org/uploads/1/3/0/7/130740008/9d46009.pdf
    • http://heartlessonline.com/uploads/1/3/0/3/130313590/bipubezi-xokezapokowe.pdf
    • http://moayas.com/uploads/1/3/0/8/130813429/4422408.pdf
    • http://altitudeconveyancing.com.au/uploads/1/3/0/6/130621554/mapijomugawi.pdf
    • http://outdoorgamesatnight.com/uploads/1/3/0/3/130323209/833843.pdf
    • http://www.elevatedadulting.com/uploads/1/3/0/4/130483983/jukofa-bomod-fojamolisom.pdf
    • http://ineavet.com/uploads/1/3/0/4/130478163/4719688.pdf
    • http://digitaldocmd.com/uploads/1/3/0/6/130605097/130605097.html#exam+ref+70-764+administering+a+sql+database+infrastructure+free+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000315e.bin
bfaf7ec4d7f6921c2aaa261a1684ee2399078eea5e637a629221a7285d99b1ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x315E 8428 bytes

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