Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f6aba9b64136c6…

MALICIOUS

PDF

30.5 KB Authoring application: Solid Converter PDF First seen: 2020-09-24
MD5: ed75f8811760ffcfd623a06d31de36da SHA-1: c9682a672f63c23f12ae22197b07d74009aac728 SHA-256: 98f6aba9b64136c6b7610a70f568e41ea521b5aa7640f6dfe6b176accb7a865b
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm, which is a common technique for distributing malicious content or conducting phishing attacks. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may also contain instructions for executing commands using Windows scripting tools, further indicating malicious intent. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' directly classifies this as a phishing-related threat.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://deeguitar.com/uploads/1/3/0/2/130272435/643228ec3d46.pdf In PDF document text
    • http://10k-running.com/uploads/1/3/0/7/130738722/2879672.pdfIn PDF document text
    • http://southerncottongoldenretrievers.com/uploads/1/3/0/6/130639903/68789dd3d34ba.pdfIn PDF document text
    • http://miamiflpressurewashing.com/uploads/1/3/0/6/130622092/nebigimikedina_tumipa.pdfIn PDF document text
    • http://theright.buzz/uploads/1/3/0/4/130493893/4de6869f.pdfIn PDF document text
    • http://onceuponahill.site/uploads/1/3/0/2/130272102/5bf784cf.pdfIn PDF document text
    • http://aimmos.org/uploads/1/3/0/2/130274199/metosovujugesux.pdfIn PDF document text
    • http://snkgng.com/uploads/1/3/0/2/130289797/4439953.pdfIn PDF document text
    • http://sydneycurlingclub.weebly.com/uploads/1/3/0/4/130476940/5ecd171c4e2c8.pdfIn PDF document text
    • http://rgue.net/uploads/1/3/0/4/130475979/xopetezafom_nivazeju_pugoro_tejijodese.pdfIn macro / runtime command snippet
    • http://newdawnresidential.com/uploads/1/3/0/4/130488885/5b7226.pdfIn PDF document text
    • http://mhrandlenovels.com/uploads/1/3/0/2/130273791/130273791.html#deep+yellow+background+vector+freeIn PDF document text

Related samples 1

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_off00001262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1262 7488 bytes
SHA-256: 3a98479934dfa623dba08a29fcdfa04aa2fe648ec25e4ce64a2669cec2eefea6

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