Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1902c72b54133b…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 21:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77ddf551e46c813d511a185d2f394f30 SHA-1: aba286619621624d5c50bafeb539ff183ee37dbc SHA-256: dc1902c72b54133b01258e797a51e9591ccaaf4f26685b6d022e6c42e445b8b0
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'car safety checklist pdf' and the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm for SEO manipulation or to host further malicious content. The primary malicious IOC is the redirector URL.

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=car+safety+checklist+pdf
    • http://files.mylocalpilates.com/uploads/1/3/0/9/130969481/f829f52ad31f733.pdf
    • http://files.peopleinpublishing.com/uploads/1/3/0/9/130969231/5138662.pdf
    • http://files.happy-cow-bakery.com/uploads/1/3/2/6/132682904/gefunagubofoz.pdf
    • http://files.wisdomoftheages.biz/uploads/1/3/0/8/130873718/xazed.pdf
    • http://files.renewedreloved.com/uploads/1/3/1/4/131407179/lexodisigoj_tawanotenital_tomuzalunipi.pdf
    • http://files.peopleinpublishing.c
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/mibivaril.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/xeluwamunafegopok.pdf
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/letelob.pdf
    • https://cdn.shopify.com/s/files/1/0438/0845/6865/files/susirisovipefutifewinamif.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4734/files/talk_like_ted_carmine_gallo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3501/7884/files/bavulanolewetaraxi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/bibibaxonis.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/wugilubajulod.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/lusapafodikesudatuwagad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/resozelofik.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_off00008247.bin
d227ebf7bb9f301e26cdc99e7c021881eb620ed97708143492bce8daedcb0c8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8247 5316 bytes
font_01_sfnt_off00009458.bin
68c8ced106b70a418b7c0962e850718d93da33bd2a2c16b89ad49411b808fe1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9458 10028 bytes

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