Malicious PDF — malware analysis report

Static analysis result for SHA-256 87c409c643d4c8e1…

MALICIOUS

PDF

50.0 KB Created: 2020-08-25 14:25:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62197f608103929b69e82761854b89ac SHA-1: d1b2dcf1ecc422b68973d3aae16e3e0eb1b1b2a9 SHA-256: 87c409c643d4c8e16c2df69eb040bf627958a042412caef386029fa2310672f7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically identified as a malicious redirector. This suggests the document is designed to lure users to malicious websites. The presence of a link to 'ttraff.cc' indicates a likely attempt to redirect users to a phishing or malware distribution site. No scripts were extracted from this sample.

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.cc/pify?keyword=firewall+sin+root+apkpure
    • http://files.cherainestanford.com/uploads/1/3/1/6/131607117/xemuvajuvuxuw_katekere_fivafug.pdf
    • http://files.mariaspicone.com/uploads/1/3/0/8/130814682/f7c09fc5f6d282.pdf
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/catalogo_boticario_dia_das_maes_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7096/files/cardiopatia_diabetica.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/8969576124.pdf
    • https://cdn.shopify.com/s/files/1/0431/3785/9733/files/duguxunaxosibotesimibu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/95836001530.pdf
    • https://cdn.shopify.com/s/files/1/0435/6374/5441/files/amisha_patel_images_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/7270/1095/files/etiologi_abortus_inkomplit.pdf
    • https://cdn.shopify.com/s/files/1/0433/8440/6181/files/accounting_warren_reeve_duchac_25th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/4689/3730/files/36305540473.pdf
    • https://cdn.shopify.com/s/files/1/0435/7813/0593/files/fusogidedawixi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5762/6792/files/administracion_publica_federal_unam.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006145.bin
c16f0ba52414a7e28e9c895cc4e8723e41cb7e6b4daf5cc57de58d579f32d2b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6145 4924 bytes
font_01_sfnt_off00007229.bin
b9c533bc4426a8ba36643b147927077cdb1fe20c138e83a09140f935737cc2d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7229 11404 bytes
font_02_sfnt_off0000975e.bin
f087524fd5eb2175e65709b05247af96e6911f1133bff7a0cbf7bd3f2422f490		 pdf-font-stream PDF embedded font (sfnt) at offset 0x975E 21680 bytes

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