Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ddb980787dcf1e5…

MALICIOUS

PDF

39.1 KB Authoring application: QPDF
MD5: c94abcd445ea4780248a3e0a87e77c40 SHA-1: 0e09e0c331ffcba08e718f51d014125f835f909d SHA-256: 1ddb980787dcf1e5327ca3688f06e2c11b58653fe40401d4fdde077a90ff785d
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body, though heavily obfuscated, contains URLs that are consistent with the link farm heuristic, suggesting a phishing or SEO manipulation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://cannononlinemarketing.com/uploads/1/3/0/6/130639506/xiwiziwuv.pdf
    • http://fapo.etg-store.com/uploads/2020/01/28/6409365.pdf
    • http://usdaum.one/uploads/1/3/0/6/130639281/5550034.pdf
    • http://chinamininggroup.com/uploads/1/3/0/6/130621304/7937403.pdf
    • http://michelsunlee.com/uploads/1/3/0/5/130551518/dogudob-poxofojizixubu-jakabakogekip.pdf
    • http://aubreyejones.com/uploads/1/3/0/4/130476192/nokugujowinize_lezora_gexokevunokafos.pdf
    • http://noonsknives.com/uploads/1/3/0/6/130604527/ef34ed22eeba09b.pdf
    • http://toomuchyakkin.com/uploads/1/3/0/3/130323647/musonepivebuwi_xikizoresagub.pdf
    • http://sautterfarm4.org/uploads/1/3/0/4/130490928/situdam.pdf
    • http://neighborhoodcatadvocates.com/uploads/1/3/0/6/130605229/dikejijesolaguwob.pdf
    • http://mountainshadowfarm.ca/uploads/1/3/0/7/130739232/ferejemibuv.pdf
    • http://ankezimmermann.ca/uploads/1/3/0/4/130488286/130488286.html#pressure+points+to+stop+foot+pain

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012ae.bin
97f4a0191011337dc410ba77558d9d68b791c98d6d922306af0b23cda487a93b
pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE 7736 bytes