Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee510614f9def41…

MALICIOUS

PDF

47.9 KB Created: 2020-03-30 02:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 753fbc9c9c2c9441dcbc57f7ccc9de08 SHA-1: 8bed916cdaae567fa7c1e233320003829cd1c2bc SHA-256: dee510614f9def412ec3da9907b56aeb59526cd6668d47a4ea5cf46bbc5e50b1
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to 'inverse trigonometric formulas' to encourage clicks on these links. No scripts were extracted, and the primary malicious activity appears to be the distribution of numerous links hosted on various domains.

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://www.sincerelyslime.com/uploads/1/3/0/2/130289397/130289397.html#inverse+trigonometric+formulas+pdf+download
    • http://trendytabs.com/uploads/1/3/0/7/130738964/sevuselutaxerit_penatinofapipi.pdf
    • http://caymansand.com/uploads/1/3/0/5/130543025/visewogofelomo.pdf
    • http://same.earth/uploads/1/3/0/3/130313495/6090581.pdf
    • http://mypokegarden.com/uploads/1/3/0/2/130272636/tetokulimasew.pdf
    • http://time2focus.net/uploads/1/3/0/2/130270775/sobafebufidixev_gixef_nunakevagewaw_popivafuvat.pdf
    • http://love-eline.com/uploads/1/3/0/6/130639085/wujabad.pdf
    • http://floritcommunicationsconsulting.com/uploads/1/3/0/5/130550847/06303807e2bd9.pdf
    • http://swiffly.com/uploads/1/3/1/3/131383294/d634b9be7a.pdf
    • http://mydreameyes.com/uploads/1/3/0/6/130605504/665387.pdf
    • http://ssh2019.info/uploads/1/3/0/2/130272649/xekolorazipivun_wunilavepir_rokabo.pdf
    • http://johnnybwildlife.com/uploads/1/3/0/7/130775820/1e8222.pdf
    • http://thelogobro.com/uploads/1/3/0/8/130814248/2696971.pdf
    • http://my-brad-lisa-memories.com/uploads/1/3/0/5/130551922/43986ad1ec2.pdf
    • http://evangelismseminar.org/uploads/1/3/0/9/130969904/bezezulabepades.pdf
    • http://stansmotorsales.com/uploads/1/3/0/7/130739433/d4469ea262d09f.pdf
    • http://zenshidai.com/uploads/1/3/0/9/130969973/vanoxoradudobejoli.pdf
    • http://jiur.org/uploads/1/3/0/2/130273735/lifedov_saxosugeva_midazisewenob.pdf
    • http://olivetales.com/uploads/1/3/0/4/130488417/vakepidirofotipejeju.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007064.bin
724833874cc951f90485426083ca01adada351e4ca7855f4fde8a6216bd36540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 8560 bytes
font_01_sfnt_off00009160.bin
6e2afe4324691a3c3a71b7653f03a4a599aa7dc33e86dd02acce13a6881b843a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9160 2988 bytes
font_02_sfnt_off00009bee.bin
4bc316074ab7a945bfab345755761abf3c0c30bbefcbffa3ce2a779be7417175		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEE 16144 bytes

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