Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d10134f011b11e…

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 15:53:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b005062efe72982d5962fa47a4407529 SHA-1: ff3df7afafb78d33c286fbc09cb5f40b059e9060 SHA-256: 36d10134f011b11e8c4c526fb93cdacdf8f55657a0f8e6b1b73b3b232ab938ec
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Asphalt 8 android free' and a URL that appears to be a lure for a game download. The presence of a link farm and a redirector suggests an attempt to lead the user to malicious content, likely for further exploitation or malware delivery.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=asphalt+8+android+free
    • http://files.serendipitygarden.ca/uploads/1/3/1/8/131856987/nunajitutise_zezen_sonokezer.pdf
    • https://cdn.shopify.com/s/files/1/0431/8514/3965/files/38924509932.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5174/files/sasamovarefurexuvilofuxas.pdf
    • https://cdn.shopify.com/s/files/1/0428/7037/4559/files/68430480499.pdf
    • https://cdn.shopify.com/s/files/1/0461/9586/7797/files/aircraft_zones.pdf
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/tewire.pdf
    • https://cdn.shopify.com/s/files/1/0428/8774/1599/files/ssa_form_3368.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/legibibezot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/74344803839.pdf
    • https://cdn.shopify.com/s/files/1/0429/6713/8470/files/epigenetics_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/71854625098.pdf
    • https://cdn.shopify.com/s/files/1/0433/6825/1543/files/neretajipajepubusojob.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/ganigob.pdf
    • https://cdn.shopify.com/s/files/1/0430/9054/2743/files/osu_skin_pack.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_off00006f89.bin
f31338355d1d91364bf0c03899cbafad29c713d518af09892d5d4965f53316ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F89 5312 bytes
font_01_sfnt_off0000817e.bin
b0edba975383efdafb89690d8a7a26ea4d4880198fb7f19ac54060330c543eb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x817E 11948 bytes

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