Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ff98f068eb0ae4e…

MALICIOUS

PDF

45.1 KB Created: 2020-04-14 15:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: aff7847abfd78155b5ff10588095dee0 SHA-1: 27209afb12846a231bbe1d78d1949c22b7c1c87d SHA-256: 3ff98f068eb0ae4e2ab04b0f1819f4bb3d2139aa0a8082aef0a16ed753097528
70 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, many of which point to other PDF files hosted on various domains. This suggests a link farm or a distribution mechanism for malicious content. The presence of a call-to-action phrase further supports the intent to lure users into downloading or accessing potentially harmful files.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://victorjoelortiz.com/uploads/1/3/0/3/130379299/130379299.html#carrom+clash+money+apk
    • http://popupfoodieshabbat.com/uploads/1/3/0/5/130541597/6728a4fba764c1.pdf
    • http://cateringprovo.com/uploads/1/3/0/5/130551206/3926023.pdf
    • http://exploretoysandcrafts.com/uploads/1/3/1/4/131407178/2f226d.pdf
    • http://revolvingclosetclothingco.com/uploads/1/3/0/7/130740011/3134bac.pdf
    • http://trendcutta.com/uploads/1/3/0/5/130588173/digukixof_xebafiwos_losubetebikip.pdf
    • http://neoshirtco.com/uploads/1/3/1/0/131070098/poxazifufesugek_numezawer_nusiduwovagadok.pdf
    • http://azforcefitness.com/uploads/1/3/0/5/130589427/xirikowi.pdf
    • http://studioeinteriors.com/uploads/1/3/1/4/131437776/8386235.pdf
    • http://studioeinter
    • 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_off00006ffc.bin
71b9bfe3ec8838ea29cd2a7a967c6223d4254ca42702972c33733e0b52a28978		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFC 8788 bytes
font_01_sfnt_off0000918a.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x918A 16164 bytes

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