Malicious PDF — malware analysis report

Static analysis result for SHA-256 b403512185ef9f96…

MALICIOUS

PDF

46.5 KB Created: 2020-08-09 05:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90183fedc56af6e1fd2b58674ad33784 SHA-1: 1eba1733cb723593cf18a48c487a4d0452a8946d SHA-256: b403512185ef9f961ce4364311be2c3291dee309c206ea034f3ad6f0ed2ab09c
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, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, 'https://ttraff.ru/pify?keyword=adenocarcinoma+gastrico+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the same malicious URL, suggesting an attempt to drive traffic to malicious infrastructure under the guise of providing research documents.

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=adenocarcinoma+gastrico+pdf
    • http://kibof.valkyriesurfer.com/uploads/1/3/1/6/131606630/6769efe7.pdf
    • http://jafepomug.mvcjr.ca/uploads/1/3/1/6/131637814/9394505b.pdf
    • http://files.getyourwagondogtraining.com/uploads/1/3/1/4/131454255/mimimetagubesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/15440662775.pdf
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/definicion_de_antecedentes_de_la_investigacion_segun_autores.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8340/files/associao_de_resistores_em.pdf
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/zokijesubakegejusamewi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7118/3775/files/2001_honda_rubicon_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2409/7175/files/fanafasalujobutujelek.pdf
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/lerisolorupowulivixikutu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/75449695290.pdf
    • https://cdn.shopify.com/s/files/1/0431/4827/9957/files/19730196774.pdf
    • https://cdn.shopify.com/s/files/1/0435/2383/4024/files/kelomominotetixumiworo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/vesperia_secret_missions.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_off0000781b.bin
df061e48e3dc0610af6a6f1240e02ed969e4a60bbb204d18d6497257fb5a83c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x781B 5432 bytes
font_01_sfnt_off00008a80.bin
aa02a0373841dc2a906c50ca4a5bb9ff46e75d72c0c8e693e25ffa748f6605bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A80 10128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.