Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca06cb251fd00649…

MALICIOUS

PDF

38.6 KB Created: 2020-08-11 04:46:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abb832943cb5e0e523316f46c02d53d9 SHA-1: 66a741b0fae2214f932d5980ce8061e606aabbfb SHA-256: ca06cb251fd006492753a505a7055eadbfb3ef41a87cce49a037070332c1c8b3
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free download for "Sama veda in tamil pdf free download". The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or malware delivery. The document body itself contains the search query and a reference to the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=sama+veda+in+tamil+pdf+free+download
    • http://files.barrelrollnews.com/uploads/1/3/0/8/130814466/gazapedupowapip-fizazofu-leropakoxo-kowiteki.pdf
    • http://vapemit.coastalkayakcharters.com/uploads/1/3/1/6/131606289/3445444.pdf
    • http://files.diaparker.com/uploads/1/3/1/1/131164440/robudafuwuzabo.pdf
    • http://files.silvertreejewelry.com/uploads/1/3/1/4/131438583/delaw_fogagozud_fikasomafosaxi_raladupuvebane.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/70196034292.pdf
    • https://cdn.shopify.com/s/files/1/0431/2409/7191/files/gupomugidobobogejigawa.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/18412136838.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/detivo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3315/7014/files/kiseko.pdf
    • https://cdn.shopify.com/s/files/1/0433/9499/0247/files/46051722194.pdf
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/jupove.pdf
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/nomuzagelup.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8535/6449/files/galefidupakadegukuridogix.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/64035790162.pdf
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/what_is_topology_in_computer_network.pdf
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/43520513883.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5045/files/add_text_to_in_preview.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/kuponosevabedelefebuxeda.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/1/0430/1075/2663/files/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dee.bin
18260ebc18bf25b591a80c7e487deaa276b6e710389618beb15c74334b642c02
pdf-font-stream PDF embedded font (sfnt) at offset 0x4DEE 5264 bytes
font_01_sfnt_off00005fcd.bin
19cdc234efbcc5f408d02d846268b534bdd3821609b50ed69da08e0e53a3de94
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCD 9704 bytes
font_02_sfnt_off0000814a.bin
baf2d0470120d45772b96894bb5c340ed258adc3b50b9c69ae34bee5476c5636
pdf-font-stream PDF embedded font (sfnt) at offset 0x814A 2872 bytes