Malicious PDF — malware analysis report

Static analysis result for SHA-256 950b171644643672…

MALICIOUS

PDF

44.4 KB Created: 2020-08-16 21:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9d5662e5461c14c7112e2e7015056c3 SHA-1: 416f4487be70bf8ba3a838d1f6cadef92d1cfb61 SHA-256: 950b171644643672c513372fcd181fd37ec2f7cbf48f86ea2d52bfefec66cfb4
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious domain (ttraff.com). The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=aerobic+exercise+for+elderly+pdf', suggesting a lure to trick users into clicking on malicious content. The presence of a link farm and a malicious redirector indicates an attempt to distribute further malicious content or phishing pages.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://ttraff.com/pify?keyword=aerobic+exercise+for+elderly+pdf
    • http://files.youandmesparkle.com/uploads/1/3/1/4/131452950/4b63af1e.pdf
    • http://jutiza.photos4uto.com/uploads/1/3/1/4/131437886/jijidoliwi.pdf
    • http://fozewu.longgame.co.uk/uploads/1/3/1/6/131606111/4cc9900eb03.pdf
    • http://kulow.totalentertainmentcorp.com/uploads/1/3/1/4/131483337/tipif.pdf
    • http://xepowuk.lifelybali.com/uploads/1/3/1/6/131606066/3351185.pdf
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/fewofeva.pdf
    • https://cdn.shopify.com/s/files/1/0448/5106/9085/files/que_es_la_percepcion_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/21785592396.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/30226297862.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/90425802113.pdf
    • https://cdn.shopify.com/s/files/1/0433/4334/7877/files/dimesakax.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/fadomali.pdf
    • https://cdn.shopify.com/s/files/1/0437/9397/3405/files/15723346290.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1607/files/fuvevutupalefuleduvibip.pdf
    • https://cdn.shopify.com/s/files/1/0434/4869/6993/files/64035450583.pdf
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/beginners_guide_to_solidworks_2020_level_1.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_off00007079.bin
eb3003acc280abc998ab21715c582dfebb324e847f049bcb56ee05b6cfaf333f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7079 5240 bytes
font_01_sfnt_off00008263.bin
c0b6fce14f32e7ab900aaeff24af476f83002793b053ef66ec8a26d5f3273e7f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8263 10108 bytes