Malicious PDF — malware analysis report

Static analysis result for SHA-256 b466436929875ad3…

MALICIOUS

PDF

50.3 KB Created: 2020-07-28 13:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 582c4e4b4296ffa494b8827196be3052 SHA-1: 74838572af65f7a7b3a2b8dfcb65dcd52f83a606 SHA-256: b466436929875ad387182032c558805b0ebb2b325645318bcd605e43e72bf8d6
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=psychology+of+falling+in+love+pdf'. The document body, though heavily obfuscated, suggests a lure related to 'Psychology of falling in love pdf'. The presence of numerous Shopify links, while mostly benign, serves to obscure the malicious redirector.

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=psychology+of+falling+in+love+pdf
    • http://files.ulcel.org/uploads/1/3/0/7/130739986/kaweripimotonox-jenat.pdf
    • http://files.ballisticarmordefense.com/uploads/1/3/2/7/132712558/ac086b132e73.pdf
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
    • http://files.loveliesandthings.com/uploads/1/3/0/9/130969603/9155400.pdf
    • http://files.denverbellydance.com/uploads/1/3/0/9/130969535/937dc240bb33e0a.pdf
    • http://files.loveliesandthings.com/uploads/1/3
    • https://cdn.shopify.com/s/files/1/0435/4247/9000/files/mojefifilelitulaju.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/15226627706.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/29814189814.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/monogijevemuzibotegagigim.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/fokarajotepima.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/42140253853.pdf
    • https://cdn.shopify.com/s/files/1/0433/4839/4142/files/89912548505.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/18699937256.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/zutinaxiratox.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/fifuwebonexovamaboje.pdf
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/pobep.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_off0000875b.bin
09c0918a67c367a93c059165febf0fa299aa0d33e36b36eee910bb9c8f0029cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x875B 5192 bytes
font_01_sfnt_off000098fc.bin
19ac649c03706bb14b2f563fbb40773e754bf7c82463e5f7458d6ced1a14e5cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98FC 10284 bytes

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