Malicious PDF — malware analysis report

Static analysis result for SHA-256 312673851f435755…

MALICIOUS

PDF

48.3 KB Created: 2020-08-20 11:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 792ee1ca84d247133d816ba77548c86e SHA-1: 60843cf8fc0b4bd40c7ca0bc17cdd157458d8c85 SHA-256: 312673851f43575560d1fbaaefc3925cafbae03d8e76bf2be3963755c81e4937
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=bbd+ki+full+form', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a coordinated effort to drive traffic to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload execution.

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.com/pify?keyword=bbd+ki+full+form
    • http://watudirav.jillhaukhomeinspections.com/uploads/1/3/2/7/132710712/1dabe055929b67.pdf
    • https://cdn.shopify.com/s/files/1/0434/1815/7221/files/basketball_new_rules_and_regulations.pdf
    • https://cdn.shopify.com/s/files/1/0447/9972/1633/files/mudojasalarisedadilolab.pdf
    • https://cdn.shopify.com/s/files/1/0434/8536/4390/files/sipumevamalugus.pdf
    • https://cdn.shopify.com/s/files/1/0436/8406/9526/files/holy_quran_ahmadiyya.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/wokixesuponunax.pdf
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/92260831999.pdf
    • https://cdn.shopify.com/s/files/1/0430/8251/4581/files/dvla_assessing_fitness_to_drive.pdf
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/lafimofomebonux.pdf
    • https://cdn.shopify.com/s/files/1/0451/0623/3496/files/tijotaram.pdf
    • https://cdn.shopify.com/s/files/1/0437/0182/9797/files/true_caller_id_pro_apk_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/bleacher_report_nba_rookie_predictions.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/98860953290.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_off000055b3.bin
575ca86fac1c0a8dfd5aab037f24eb7391235354ad761f74e6df35a631c1b0bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B3 4916 bytes
font_01_sfnt_off00006658.bin
2451a639cdeb85f88f466ce19a95bc0d46aacf0aedc5980bbdfb826c13a531f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 14844 bytes
font_02_sfnt_off000094cc.bin
9cc999552d0e958586a7df929f2c13db0945dec5769b60cca5693ba77ed895e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94CC 9144 bytes

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