Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd1a7a85eb93d2c3…

MALICIOUS

PDF

38.1 KB Created: 2020-04-09 10:58:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ffc986c3bf6a36b3a3d938157ff8c819 SHA-1: 6e5c779c374d28705c7ebee40724197cff98d5a7 SHA-256: cd1a7a85eb93d2c3f7968eea63167c7548da25fb7cc6a72d40d52b024c35173f
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to 'division de 2 cifras con decimales ejemplos' and mentions wkhtmltopdf, suggesting a potential lure or distraction. The primary attack pattern involves directing users to a vast network of linked PDF files hosted across numerous domains. No scripts were extracted from this sample.

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://mindfulnesspsychology.net/uploads/1/3/1/4/131409200/131409200.html#division+de+2+cifras+con+decimales+ejemplos
    • http://nwbrawler.com/uploads/1/3/1/4/131482931/8683420.pdf
    • http://opbp.org/uploads/1/3/1/0/131070483/4552860.pdf
    • http://worrallattorney.net/uploads/1/3/0/6/130639935/gevovoze.pdf
    • http://slockettdesigns.com/uploads/1/3/0/7/130776855/fisaxoliz.pdf
    • http://firesidealameda.com/uploads/1/3/0/3/130379675/2b6aca.pdf
    • http://osheastuff.com/uploads/1/3/0/4/130477192/1862637.pdf
    • http://equippum.com/uploads/1/3/0/5/130588928/raketenilomen_boboligumokiju_lejibi_pofirikolaxu.pdf
    • http://ernestdixon.com/uploads/1/3/0/3/130313106/5e0a95a7ba5493.pdf
    • http://littlemonstersartstudio.com/uploads/1/3/0/5/130539115/gabigudebatabed_kilubomobu_rekunukopotuv_pesodef.pdf
    • http://bearicade.net/uploads/1/3/0/5/130551046/getozuj_totekikuju_bawufowerexut.pdf
    • http://hotzonefishingcharters.com/uploads/1/3/0/6/130639463/zejisuxub.pdf
    • http://acumensalestrainingconsultants.com/uploads/1/3/0/2/130271143/1261526.pdf
    • http://beggintobehave.net/uploads/1/3/1/4/131406211/5622f4650ec4af.pdf
    • http://chaiyee.com/uploads/1/3/0/3/130313698/95891.pdf
    • http://pineridgeretreatcenter.org/uploads/1/3/1/3/131384495/sinaxidulitogeru.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_off00006a41.bin
3ad26a8b9f44adc7b00c0c485d77dbfae10a9c1640fcd942b898d3b912b425f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A41 8456 bytes

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