Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ffb1f1fff10603a…

MALICIOUS

PDF

46.3 KB Created: 2020-04-03 04:30:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 480e9f7a9c2c4f6bb630a5fa09e765ae SHA-1: a362fd715afe8423ef991d6ab7c08a470e04d253 SHA-256: 7ffb1f1fff10603a4838e1a7ac38e5dfd940577794ba839169ff7a4148fcf3f5
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or distribution mechanism. The document body itself contains text related to economics and mentions wkhtmltopdf, suggesting it might be a generated document. The primary attack pattern involves directing users to these external resources, which could host further malicious content or be part of an SEO poisoning scheme.

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://sgbenefits.net/uploads/1/3/0/5/130589411/130589411.html#the+marginal+cost+curve+intersects+the+average+variable+cost+curve+at+quizlet
    • http://fittedmystique.com/uploads/1/3/0/2/130288731/44f276c51081f.pdf
    • http://knminidiggers.com/uploads/1/3/0/4/130488850/kerijajupumif.pdf
    • http://ninareedofficial.net/uploads/1/3/0/8/130873824/56828c825.pdf
    • http://iconmobilesolutions.com/uploads/1/3/0/4/130479435/5049225.pdf
    • http://socceruniformsphoenix.com/uploads/1/3/0/3/130323516/bawuru.pdf
    • http://barbaraadlerlmft.com/uploads/1/3/0/6/130621284/xexamafomusab-vesavon-wosulal-bositipakekit.pdf
    • http://nomadcc.com/uploads/1/3/0/8/130874102/0c256d1eee155f.pdf
    • http://fsspphilippines.org/uploads/1/3/0/2/130271009/2524524.pdf
    • http://emilialuna.com/uploads/1/3/0/4/130477110/5838297.pdf
    • http://reliableiptvstreams.com/uploads/1/3/0/7/130775424/mixavikibumabazo.pdf
    • http://sagepathways.net/uploads/1/3/1/3/131380273/nivivote.pdf
    • http://reconmetal.ca/uploads/1/3/0/3/130313141/3760275.pdf
    • http://hoeckerhealth.org/uploads/1/3/0/5/130540065/dede833929a3.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077ba.bin
8089d5d0cda935d2524c87239cd159cab198137db987bff63d46e07ce8327feb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 7852 bytes
font_01_sfnt_off0000962f.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x962F 16036 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.