Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aafdee6c1736773…

MALICIOUS

PDF

128.2 KB Authoring application: Pdftk
MD5: 2a59fb68ed0ab4901c65bf481e3ca5a1 SHA-1: f431e5dacf862083f0a3d78863b65fbc6111b38a SHA-256: 6aafdee6c17367735063c8bc4bacd1b4e1016d98b1d131c21b653108bfef5afc
172 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. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall-7605656-0, indicating a phishing or redirection attempt. While the document body is heavily obfuscated, the presence of numerous links suggests a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • 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
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://heidiwilliamsbrown.com/uploads/1/3/0/7/130775951/9636743.pdf
    • http://www.phonesystemswellington.co.nz/uploads/1/3/0/7/130776366/468500.pdf
    • http://streamboxtv.com/uploads/1/3/0/6/130605341/fezano.pdf
    • http://red4edactionnc.com/uploads/1/3/0/5/130543394/5b2158b.pdf
    • http://adjusters.quickcatclaims.com/uploads/1/3/0/6/130604656/burek-jutijazem-jarilexak-gupedasolojuja.pdf
    • http://laughingduck.org/uploads/1/3/0/6/130620490/ligulamudutibodi.pdf
    • http://kelleycarney.com/uploads/1/3/0/6/130604294/lusikowe.pdf
    • http://amazonrealestateclub.net/uploads/1/3/0/6/130604764/wigipa.pdf
    • http://watersedgeplumbing.com/uploads/1/3/0/8/130874437/ea01125fee67c.pdf
    • http://cuskga.com/uploads/1/3/0/3/130379061/monarajedezira.pdf
    • http://towneridgecleaners.com/uploads/1/3/0/5/130589277/xovuzakalono_nekuwixexiwuw_dagubipu_xegevazowedege.pdf
    • http://deltagoldoffer.com/uploads/1/3/0/8/130813427/menakeboregelewoz.pdf
    • http://mmalonecelebrantservices.online/uploads/1/3/0/5/130540453/mesuf_gofujifajil_sagefamitefovo.pdf
    • http://n2everything.com/uploads/1/3/0/4/130488810/xinarobukasasokewilu.pdf
    • http://myncpl.com/uploads/1/3/0/6/130621240/779a7.pdf
    • http://garrettmoorerealtor.com/uploads/1/3/0/6/130620464/01041e07963.pdf
    • http://warriorstrongadventures.com/uploads/1/3/0/4/130435939/b216d999ba.pdf
    • http://promujngo.com/uploads/1/3/0/4/130478110/bamewidopawopur_tafepirewa_revibidixamus.pdf
    • http://goonmud.com/uploads/1/3/0/3/130313159/renafali-wavizap.pdf
    • http://10122006.com/uploads/1/3/0/5/130538997/wamuvixonovawozetiz.pdf
    • http://oldsite.alaskaaircarriers.org/uploads/1/3/0/2/130272477/jaxubazux.pdf
    • http://mikelscottart.com/uploads/1/3/0/4/130436080/josekazog.pdf
    • http://www.activilongusa.com/uploads/1/3/0/6/130604303/4228209.pdf
    • http://johnsonandsonsservices.com/uploads/1/3/0/7/130776452/130776452.html#cambridge+igcse+computer+science+book+by+helen+williams+pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dd6.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD6 16036 bytes
font_01_sfnt_off000075d0.bin
31d63f4fd43f8712901e3558ae6169cd3dcdf5fc2967a36a7fa3221b485e9605
pdf-font-stream PDF embedded font (sfnt) at offset 0x75D0 10292 bytes