Malicious PDF — malware analysis report

Static analysis result for SHA-256 e46853b6a1be2529…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 08:04:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67e0bd3afde4f731755d33afe1845fd6 SHA-1: 32539c907e6c3ac97791a219edf0a5e13145466d SHA-256: e46853b6a1be252984dbef2eebbe257cd18975e0cb169856b0adf1065f120344
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL and text related to 'sequence of tenses rules pdf', suggesting a lure. The presence of a link farm heuristic further indicates malicious intent to drive traffic through these links. The primary malicious URL is ttraff.com/pify, which likely leads to further malicious content.

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.com/pify?keyword=sequence+of+tenses+rules+pdf
    • http://files.writing-raven.com/uploads/1/3/1/4/131438038/pujakata_gagifere.pdf
    • http://files.thewrightograph.com/uploads/1/3/1/0/131070178/057a271c7f0.pdf
    • http://xupoponu.nanaimoclippersmerch.com/uploads/1/3/1/4/131453329/b796357e54235.pdf
    • http://files.thevipsuite-brands.co.uk/uploads/1/3/1/8/131856991/degogemi-vabadavamem.pdf
    • http://files.radioarcana.org/uploads/1/3/1/3/131398246/bokoxugipiso_xinevuzobimefi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/famigetopomabemegaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7500/9696/files/waterfall_project_management_methodology.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boguxexu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/91161573794.pdf
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/bonafide_certificate_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/guide_ramapo_edu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2308/9307/files/2004_gmc_sierra_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/juxeropogafadajelafo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3938/3971/files/farm_pro_2425.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5888/files/bsf_tradesman_admit_card_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
    • https://cdn.shopify.com/s/files/1/0431/6610/5759/files/pefevevidomutuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/raymond_chang_chemistry_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/4008/0021/files/42346551611.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_off00008110.bin
6df2eb303808b5e9a55a1a3b0a6e67a6adc5f68ad57bea8489c9ac71a53c37d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8110 5168 bytes
font_01_sfnt_off000092ba.bin
e1b30d87b3a2aee1d8547a2d3cfc5efe7b57fb4f4d20ad9b1b285084ea920fe8
pdf-font-stream PDF embedded font (sfnt) at offset 0x92BA 10104 bytes