Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf0f78ccc858066…

MALICIOUS

PDF

45.9 KB Created: 2020-04-24 03:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 94121b524c9386991cf2acdf36135f04 SHA-1: 7d70bd3a931da3e4f96b3f79ac1a4fcc640d1032 SHA-256: 8bf0f78ccc858066a46c04e608fb758689da0c737014de1cd52a3118c1b1f2c9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. This suggests the document is likely part of a link farm or SEO manipulation scheme. The embedded URL also points to an external HTML resource. No scripts were extracted from this sample, limiting the ability to determine further malicious intent beyond link distribution.

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://adoptmyblock.org/uploads/1/3/1/4/131455158/131455158.html#teeth+arrangement+in+complete+dentures+pdf
    • http://elevatewords.com/uploads/1/3/0/3/130323616/nijil_gogowovewal_fogevix_fuwekoperi.pdf
    • http://anchortechnologies.biz/uploads/1/3/0/8/130813780/banusepali-rukewab-zeravori.pdf
    • http://monkeysandbubblesdaycare.com/uploads/1/3/0/4/130477309/liledukujidowepupo.pdf
    • http://langstonwriting.com/uploads/1/3/0/7/130775062/nupitijiwob.pdf
    • http://cotesdesmers.com/uploads/1/3/0/6/130621397/wirodalutab.pdf
    • http://jrmsuccesslink.com/uploads/1/3/0/5/130588334/rijodujuku.pdf
    • http://carkeyswexford.com/uploads/1/3/1/4/131453094/bofazepiwe-vubez.pdf
    • http://flagstopcrossfit.com/uploads/1/3/0/4/130483801/lalimunikazuxofimusi.pdf
    • http://blueink-company.com/uploads/1/3/0/4/130436190/ca46b1.pdf
    • http://brewhousemarketandwine.com/uploads/1/3/0/2/130270837/wixora-fekozuvibudifam-kigedazebogi-jakiliduvak.pdf
    • http://riverportlandscaping.com/uploads/1/3/0/6/130620924/8981446.pdf
    • http://onembiss.com/uploads/1/3/0/5/130539583/wabipixugogirix.pdf
    • http://phatbottomspray.com/uploads/1/3/0/4/130475925/matokomezapom-nefufarudaxo-seded.pdf
    • http://impactmarketingprofessionals.com/uploads/1/3/0/7/130739987/boketagapiga-juwuboj.pdf
    • http://cotesdesmers.com/uploads/1/3/0/6/130
    • 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_off00008b19.bin
d88efc846a6a3da5d1839b9175c0f3c2292f1eb51634ca12596d8385eda10587
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B19 8248 bytes