Malicious PDF — malware analysis report

Static analysis result for SHA-256 471087a48c826e05…

MALICIOUS

PDF

52.0 KB Created: 2020-08-11 16:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 777c961a48a90b78ca43b403e7d8793d SHA-1: 5d823b8184cd703eecd543c3181db32ee3154126 SHA-256: 471087a48c826e05331f197ffeb878d62d5c9ea74d5902b5a80cbb672dba7306
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Balochistan history pdf'. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload or phish for credentials.

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=balochistan+history+pdf
    • http://files.educationfoundationoflm.org/uploads/1/3/2/7/132710779/gefiladotila-faturibilud-fufutelebo-xarumumovimomol.pdf
    • http://files.marnimigrealtor.com/uploads/1/3/0/7/130775108/9655933.pdf
    • http://files.limodafinancial.com/uploads/1/3/1/0/131070688/domojupefinaju.pdf
    • http://zipita.domesticagenda.org/uploads/1/3/1/6/131606490/lunesegagapexex_taverujak.pdf
    • http://fomodu.robertwmartin.com/uploads/1/3/0/7/130738546/91282.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0850/files/66939248204.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/61617235755.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/40203992622.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/36438170010.pdf
    • https://cdn.shopify.com/s/files/1/0437/0182/9797/files/jifolugamefavos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25781613666.pdf
    • https://cdn.shopify.com/s/files/1/0429/2709/5967/files/42372107422.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/aeronautical_engineering_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/lofalu.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/minecraft_guitar_tab.pdf
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/3113954906.pdf
    • https://cdn.shopify.com/s/files/1/0430/8133/4951/files/data_analysis_technique_in_qualitative_research.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/
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/6161723

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008dfc.bin
3ab0cf8d233d81823577faed56dd1fc6d975c9d3229772c0e475a4d63ff3f01b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 5396 bytes
font_01_sfnt_off0000a048.bin
6755a6e5e3bf71d73b6c8f10aac02c3f736118b98c7419322e155fc18aaa70a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA048 10088 bytes

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