Malicious PDF — malware analysis report

Static analysis result for SHA-256 e23c9c004a83e0dc…

MALICIOUS

PDF

58.1 KB Created: 2020-08-03 18:26:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a6dac7e1caad485320cd775f50ee35 SHA-1: 407830379895f2d9c5b9e93fc7f6889f9a9a5794 SHA-256: e23c9c004a83e0dc3e9c095d866078efa0a634b6cf5598acee93a36eabfbd50d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment 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 to a known malicious redirector at ttraff.ru. The document body, though partially corrupted, contains text related to 'definition of international business management pdf' and the malicious URL, suggesting a lure to trick users into clicking on the links. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.ru/pify?keyword=definition+of+international+business+management+pdf
    • http://files.collegeclubofhartford.org/uploads/1/3/1/4/131483719/fomavigemega-filutunimatop-tedasivinavatu.pdf
    • http://files.rittmansaltcoalition.com/uploads/1/3/1/8/131856539/d663741d.pdf
    • http://rapupuv.renfestjeweler.com/uploads/1/3/1/0/131071252/546916c78d1.pdf
    • http://files.mnnfnetwork.com/uploads/1/3/1/4/131438079/bofesafela.pdf
    • http://files.ultimatesyntheticlubes.com/uploads/1/3/1/3/131379591/gowiv_xojukawixaji_novaja.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8816/files/96984380952.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdf
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/76087573401.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/61074935221.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/80917137353.pdf
    • https://cdn.shopify.com/s/files/1/0428/6421/4175/files/92984790871.pdf
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/65951558718.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/tebodubepotewutulafowevof.pdf
    • https://cdn.shopify.com/s/files/1/0437/8843/5613/files/49238047881.pdf
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/5479276336.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72890356131.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/confederal_government_definition.pdf
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/49853718365.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/
    • https://cdn.shopify.com/s/files/1/0429/6517/23

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a4e3.bin
e4421308772bc20fec5ec273f231fea5dc51097e1873c63dd42c6d61786c2438		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E3 5500 bytes
font_01_sfnt_off0000b77c.bin
766c6ce6f101b0154f1848fbd202510159a8dad58accb3fa4c596fec01c5d2cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB77C 10436 bytes

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