Malicious PDF — malware analysis report

Static analysis result for SHA-256 81e6d9ce165bb7fb…

MALICIOUS

PDF

39.0 KB Authoring application: ImageMagick First seen: 2020-09-24
MD5: 324d47163e6f43259626cfe836378048 SHA-1: db2fb59c56f3d056515f02a1f0c08630f8c951f0 SHA-256: 81e6d9ce165bb7fb7109036b3a2e62dbec6603dbf23e19f811c39ac01e421192
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'link farm' by heuristics, suggesting an attempt to direct users to malicious content. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were extracted, the embedded URLs are the primary indicators of malicious activity, likely leading to further infection or phishing attempts.

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://www.ohdronepics.com/uploads/1/3/0/4/130436141/riluxikoxokafa.pdf In PDF document text
    • http://endoscopecabinet.com/uploads/1/3/0/8/130874510/rifafatizirojas_fotorisuga.pdfIn PDF document text
    • http://noahhartman.com/uploads/1/3/0/7/130775363/xifolowubupunu-jewomefotad-bapobixaxonikas-sibokutozin.pdfIn PDF document text
    • http://iheartdetroit.net/uploads/1/3/0/6/130639468/1866661.pdfIn PDF document text
    • http://deals.pearldistrict.com/uploads/1/3/0/3/130323155/e8fa4d26d29928.pdfIn PDF document text
    • http://gregwbaker.com/uploads/1/3/0/5/130588805/gerodoxonini.pdfIn PDF document text
    • http://nelaalen.com/uploads/1/3/0/6/130603913/sivevipid.pdfIn PDF document text
    • http://nurseinnovation.solutions/uploads/1/3/0/5/130541031/91b3cd49.pdfIn PDF document text
    • http://monsieurpl.com/uploads/1/3/0/5/130542813/jupagosaju-siwexepan.pdfIn PDF document text
    • http://monolithcomputing.com/uploads/1/3/0/7/130776073/nutidudeluzabip_xifuweremamo.pdfIn PDF document text
    • http://proaerialleague.com/uploads/1/3/0/6/130621036/xuzilixatizejun.pdfIn PDF document text
    • http://geniuspath.ai/uploads/1/3/0/5/130550803/napuvexemunosuz_rewobek_ruzalizizeketif_felitupopaki.pdfIn PDF document text
    • http://circoestodo.com/uploads/1/3/0/5/130541837/50fcf000.pdfIn PDF document text
    • http://www.catherinelapointe.com/uploads/1/3/0/5/130538833/8719646.pdfIn PDF document text
    • http://jennileighcupcakerie.com/uploads/1/3/0/7/130775821/e42b31b.pdfIn PDF document text
    • http://nhgamebutcher.com/uploads/1/3/0/5/130588570/vogerufovotu_runuzitofadu.pdfIn PDF document text
    • http://webdisk.dickersongreenseminary.org/uploads/1/3/0/8/130874599/130874599.html#cure+of+hepatitis+bIn PDF document text
🗂 Part of campaign: pearldistrict.com 3 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003c4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C4C 8012 bytes
SHA-256: 99dee0f68945d49ae96034db9333f7253528604c13b1419a8f3dd4829fa40c39