Malicious PDF — malware analysis report

Static analysis result for SHA-256 475d3e16a573d5c0…

MALICIOUS

PDF

40.4 KB Authoring application: Poppler-utils First seen: 2020-09-24
MD5: 1cd42dc903c7e108a8c9396cac4410ea SHA-1: a07f1916e4a8b237bfc8ab2fd1b27912ceda5802 SHA-256: 475d3e16a573d5c04a38609fc03fff084964399e9ee365b2df22a8d68b2be3a0
160 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection also flags this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic-generation intent. The document body, though heavily obfuscated, contains several of these URLs, reinforcing the link farm attack pattern. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://agingwell360.com/uploads/1/3/0/3/130323182/bojadove.pdf In PDF document text
    • http://second-childhood.com/uploads/1/3/0/4/130483134/06fe426.pdfIn PDF document text
    • http://off2grandmashouse.com/uploads/1/3/0/3/130313087/4414383.pdfIn PDF document text
    • http://4movements.org/uploads/1/3/0/2/130272976/2475414.pdfIn PDF document text
    • http://toprestaurantreviews.com/uploads/1/3/0/5/130551896/wolorizuguze_ridosewifiwezon.pdfIn PDF document text
    • http://thebambooretreat.com/uploads/1/3/0/4/130489185/fimizukobid.pdfIn PDF document text
    • http://ambercove27waterfalls.com/uploads/1/3/0/5/130552043/1927474.pdfIn PDF document text
    • http://chippenhampositiveliving.com/uploads/1/3/0/4/130435743/mebebuvaza-javusawemimo-vonarebe.pdfIn PDF document text
    • http://theaestheticskinstylist.com.au/uploads/1/3/0/5/130550764/pibugawixuke.pdfIn PDF document text
    • http://qnek.net/uploads/1/3/0/2/130273896/monemavutuf.pdfIn PDF document text
    • http://quinne.net/uploads/1/3/0/7/130739684/bodevepoviv-fanison-xorisugiwujub.pdfIn PDF document text
    • http://lacanadalimo.com/uploads/1/3/0/3/130313188/jadesifog_pejezokamazeme_mopelakoj.pdfIn PDF document text
    • http://djspizza1.com/uploads/1/3/0/4/130477234/130477234.html#reported+speech+examples+sentencesIn PDF document text
🗂 Part of campaign: qnek.net 5 samples

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000136a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136A 8008 bytes
SHA-256: 34fd142555e37ca809ce53f620487c7fc9cd2941f2f0ac6abb97c7ce23d80702

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