Malicious PDF — malware analysis report

Static analysis result for SHA-256 4063c8efa62071c2…

MALICIOUS

PDF

48.9 KB Authoring application: LibreOffice Draw
MD5: 413c5eb4fe9829c9529a18680ed14ffd SHA-1: 17c48b65ab20a7006d35ef366fde13a4ce148947 SHA-256: 4063c8efa62071c2c6d60bae97121ac54c6f26475811d39510805377b1e73ef6
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 links to external PDF files hosted on various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is commonly used to distribute phishing content or redirect users to malicious sites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://morgangracejarrett.com/uploads/1/3/0/5/130590298/4326f6b76a7dd59.pdf
    • http://mirasana.com/uploads/1/3/0/6/130621719/rapigototik-nagamefexuran.pdf
    • http://accordingtoiris.com/uploads/1/3/0/5/130542710/2680358.pdf
    • http://witches.church/uploads/1/3/0/6/130620964/sinekukelujapowu.pdf
    • http://sparxelectricalcontractors.com/uploads/1/3/0/6/130603745/bd15f061.pdf
    • http://nextlevelelite.org/uploads/1/3/0/8/130813738/rovup.pdf
    • http://blogg.allegro-as.no/uploads/1/3/0/2/130289409/dc1d5a14d8534.pdf
    • http://bobmayerphotography.com/uploads/1/3/0/7/130775503/bfa5fbc0.pdf
    • http://fakeangels.space/uploads/1/3/0/2/130289426/ed9dbd.pdf
    • http://juneau-dining.com/uploads/1/3/0/4/130476024/8804015.pdf
    • http://antiviruseprotectserviceonline.site/uploads/1/3/0/7/130776763/130776763.html#adobe+illustrator+cs5+system+requirements+mac

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036a4.bin
3846a17eae5fabd0057193daf355264e25db511ec79330f1ff7e728eab53c887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36A4 6908 bytes
font_01_sfnt_off00004c51.bin
d8fa1d180e0a505d0c2b16a5f695b88c8b58e4db502161fc5572c07a7daa196e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C51 16488 bytes
font_02_sfnt_off00006613.bin
44dc259ceba8a7ee0f6b01b7ac1a7d337ba083bfcb5cde2a0198c00f5cd8a7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6613 9648 bytes

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