Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ccce966ebdc3d0d…

MALICIOUS

PDF

46.9 KB Created: 2020-08-09 01:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 738905e7eb359c123fddfee814796200 SHA-1: 725155fe560d021ad2bbc8ad34fef92314394966 SHA-256: 7ccce966ebdc3d0db4a86e6623231e41e85506eee559329833d556c491ccaf79
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=como+fazer+referencia+bibliografica+de+site+em+pdf', is flagged as a malicious redirector. The document body, though partially corrupted, suggests a lure related to academic referencing, likely to disguise the malicious intent of redirecting users to potentially harmful sites.

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.ru/pify?keyword=como+fazer+referencia+bibliografica+de+site+em+pdf
    • http://rinobeso.wewillservethelord.org/uploads/1/3/1/4/131482975/6187824.pdf
    • http://samakebu.forasplitsecond.com/uploads/1/3/2/7/132710621/wuvoj.pdf
    • http://razokufes.stjohnofthecrossacademy.com/uploads/1/3/1/0/131070767/5218014.pdf
    • http://zifijami.rhynotite.com/uploads/1/3/1/8/131871864/1242304.pdf
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/15971127938.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/get_element_by_xpath_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0435/0499/2408/files/homeworld_remastered_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/dajezofobizisufilibonoje.pdf
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/aggression_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/78739253224.pdf
    • https://cdn.shopify.com/s/files/1/0436/4900/7769/files/essay_hook_examples.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/jibexo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdf
    • https://cdn.shopify.com/s/files/1/0431/2740/6746/files/ielts_listening_recent_actual_tests_volume_2_audio.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_off0000712e.bin
6ce613245523c6184a93a5d7fa6f927a1f939f4efbcca24d33e4924fb6a31523		 pdf-font-stream PDF embedded font (sfnt) at offset 0x712E 5568 bytes
font_01_sfnt_off00008408.bin
f1fe28e3b7650a8051af981623167d1cbc458d7163273a093d6d11d072828313		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8408 13552 bytes

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