Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3825d81ad16b964…

MALICIOUS

PDF

47.2 KB Created: 2020-04-20 08:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71704c0e958feb322bf1fa884247183e SHA-1: 01b9e452f66923daf314e42fc99e8af4b0de57a8 SHA-256: e3825d81ad16b964a841c44c75e57883ad76ad6dfe3ddd45eba87e32d85e56f2
70 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, many of which point to other PDF files on various domains. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though partially corrupted, contains text related to a 'psychology guide book' and a URL that further supports this lure. The primary intent appears to be directing users to download potentially malicious PDF 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://charleneswoboda.com/uploads/1/3/1/0/131071180/131071180.html#psychology+guide+book+class+11
    • http://nozeypawz.com/uploads/1/3/1/3/131380495/vagipalabazaw.pdf
    • http://libertybelleconcierge.com/uploads/1/3/1/4/131407797/mojam-fiwinewasabodep.pdf
    • http://ambercoveshoreexcursions.com/uploads/1/3/0/2/130291561/denokigiziz.pdf
    • http://eyelasheshiltonhead.com/uploads/1/3/0/5/130551179/3d7154.pdf
    • http://my123math.com/uploads/1/3/0/2/130287989/fewuve.pdf
    • http://matthewlundyportfolio.com/uploads/1/3/0/6/130639926/d88b2205e3.pdf
    • http://purplebutterflykids.shop/uploads/1/3/0/7/130775215/4593bb5df7.pdf
    • http://ambulanciasdelsuroestepr.org/uploads/1/3/0/6/130620924/aae48f8.pdf
    • http://onesweetgaia.com/uploads/1/3/0/9/130969726/df51c2650.pdf
    • http://mobilehome-hoekstra.com/uploads/1/3/0/4/130478868/kamolujif-rironanu.pdf
    • http://originalaffirmations.com/uploads/1/3/0/7/130776096/2924a7923ca68.pdf
    • http://batesfinancialllc.com/uploads/1/3/1/3/131380480/7980026.pdf
    • http://directorofhappiness.com/uploads/1/3/0/5/130539130/fetoxojuwus_sexoxagi_rozoxonu_kivenafope.pdf
    • http://egaliteministry.com/uploads/1/3/1/4/131454692/93c32.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_off00007add.bin
74028199c1cdb1698aa173c8e13fb2c96ff5008cb4153ba3740f95e2fd051513
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADD 7936 bytes
font_01_sfnt_off00009942.bin
83a62cfceff1f987eb3848a6462f4220489bd8e1e0c6c49678a54e93845268c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9942 8312 bytes