Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c4094f21780149a…

MALICIOUS

PDF

93.2 KB Created: 2020-03-07 16:45:51 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5af86d1743c0344a8e0df94e229a6a3f SHA-1: 56f12e6a3de4cd1cca6771dc344bc2aabc7d3ec5 SHA-256: 9c4094f21780149a0ced44d604bbb3425b10ae369456893a9bc4893d1ff8a65f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of external links, many of which point to PDF files hosted on various domains. The document body text is heavily corrupted, but the presence of the string 'Natural treatment of addison's disease' suggests a lure. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, likely for SEO manipulation or to distribute further malicious content. 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://wangshangdubo.br3h.com/uploads/1/3/0/6/130621845/130621845.html#natural+treatment+of+addison%27s+disease
    • http://blockchainambassador.ca/uploads/1/3/0/4/130488530/nutebonuga.pdf
    • http://crownway.org/uploads/1/3/0/2/130274256/joleret-panez.pdf
    • http://www.myminecraft.net/uploads/1/3/0/6/130605164/gesunu_tilabupa_tomodekof.pdf
    • http://www.majkenbdesign.com/uploads/1/3/0/5/130588261/zefisiwefe.pdf
    • http://togetherweflip.net/uploads/1/3/0/9/130969440/nedeweduloriliteko.pdf
    • http://www.kicksmasteronline.com/uploads/1/3/0/4/130435717/bukijuragewuxil-ralororurivu.pdf
    • http://obakosobotanica.org/uploads/1/3/0/7/130776791/2582190.pdf
    • http://losangelescommercialpropertymanagement.com/uploads/1/3/0/7/130738778/5c3b48fce.pdf
    • http://www.mycelz.com/uploads/1/3/0/8/130814586/sepevoxamudu.pdf
    • http://novific.com/uploads/1/3/0/7/130740292/7263473.pdf
    • http://designcycle.co/uploads/1/3/0/4/130477252/bixijupezugaduli.pdf
    • http://redhoteyebrows.com/uploads/1/3/0/5/130588962/4164cecfa6a.pdf
    • http://myrole.finance/uploads/1/3/0/7/130739924/c1791345be564c.pdf
    • http://eldecymedia.com/uploads/1/3/0/8/130874539/44b80c7f.pdf
    • http://www.philadelphiacommercialpainting.com/uploads/1/3/0/6/130639329/7443643.pdf
    • http://foxretail.shop/uploads/1/3/0/3/130379529/7996541.pdf
    • http://www.fulcrumaero.com/uploads/1/3/0/6/130604646/tamor.pdf
    • http://drewmartin.net/uploads/1/3/0/2/130288006/rujal-boxaparadorovuj-galivuluk.pdf
    • http://erikaworth.org/uploads/1/3/0/7/130739443/3776197.pdf
    • http://buycialis.com/uploads/1/3/0/7/130738978/bokuruliz_wabexe_mepazuwilorokat_bapalarexexozu.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_off0001431b.bin
adf78aa483743807768da7f0bba15b0d05d29b3782b24063d2327c056c9e52c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x1431B 9704 bytes