Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeda799ca6cdfcb9…

MALICIOUS

PDF

37.1 KB Created: 2020-04-07 18:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b8f6d60d3e577f1043dbc28d38b90c39 SHA-1: f4de43218f4da24494dc1a357220effe194e2ff3 SHA-256: aeda799ca6cdfcb9bd6f70e26f58416488cb4a45c5851fda47257aa2a110760c
92 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a link farm, embedding numerous URLs that lead to other PDF files. The primary lure appears to be related to downloading music albums, a common social engineering tactic. The PDF_SEO_LINK_FARM heuristic firing confirms the presence of a mass external PDF link farm, indicating a likely attempt to distribute malicious content through a network of SEO-optimized lures. No scripts were extracted from this sample.

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://alexmcmichael.com/uploads/1/3/0/7/130739509/130739509.html#chris+brown+royalty+album+download+z
    • http://attagenttrip.com/uploads/1/3/0/5/130538902/25ffe4.pdf
    • http://actiondirectionaldrilling.com/uploads/1/3/0/4/130435734/varelakuziker.pdf
    • http://towingprosfortworth.com/uploads/1/3/0/3/130379162/3252024.pdf
    • http://jacobshawaiifarm.com/uploads/1/3/0/7/130740165/zabilon-rudelet-gisug-rezitubo.pdf
    • http://bossbellbbqbrew.com/uploads/1/3/0/7/130739561/427336.pdf
    • http://chrishawkinsdesign.com/uploads/1/3/0/7/130740206/2033141.pdf
    • http://padreramos.com/uploads/1/3/0/6/130603959/xuwogedunuzubujez.pdf
    • http://cookeryacademy.net/uploads/1/3/0/5/130551106/227569.pdf
    • http://501ventures.org/uploads/1/3/0/7/130775432/matipaje.pdf
    • http://newlifebiblecollege.info/uploads/1/3/1/4/131407815/868844.pdf
    • http://securtrans45.com/uploads/1/3/0/3/130323491/a5b67e1905a6d.pdf
    • http://word-sculpting.com/uploads/1/3/0/9/130969336/nexozimanakega-luropetevafe-devokemaw.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066ee.bin
5e6415367854aa2fffe9e4d3473b72334101bbeb7b567216864cf965adf11f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66EE 8480 bytes

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