Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fbb6b80d00785b8…

MALICIOUS

PDF

47.3 KB Created: 2020-08-27 15:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48372a3c3da993826c0bdb14f7c902d1 SHA-1: e7927b212c2267dc3ed0c8834555d6087e784d4c SHA-256: 8fbb6b80d00785b8ebdfa6970fe7a15ee2ef1eba38976d2a3c1d10cb4c6e2ca4
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an MP3 download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which are hosted on Shopify, suggesting a link farm designed to lure victims. The document body contains the lure text 'Aparichitudu mp3 songs download' and the malicious URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aparichitudu+mp3+songs+download
    • http://purijo.data-in-harmony.com/uploads/1/3/0/7/130775506/6365995.pdf
    • http://files.counseling4thesoul.com/uploads/1/3/1/6/131636728/1701479.pdf
    • http://rutovori.zikhafrimainecoon.com/uploads/1/3/2/6/132682883/547854.pdf
    • http://files.tlghk.org/uploads/1/3/1/6/131637679/xiwomojuxokiwurute.pdf
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/microplasticos_secundarios.pdf
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/xewadirazalonoraw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/limagezigoxafip.pdf
    • https://cdn.shopify.com/s/files/1/0463/6806/3643/files/pero_volvio_de_nuevo_y_nacio_el_amor.pdf
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/69157304475.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/93070142740.pdf
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/dagakobosogozavenedivetir.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/67484181753.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/noun_verb_adjective_adverb_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/9740/7126/files/pdf_to_word_free_download_pc.pdf
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/cgegis_table_october_2020.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_off00007157.bin
ac081c4ee5a5d2f25dc1f1bbf6876be28dc304c7c2a900df2242701ee5b88301
pdf-font-stream PDF embedded font (sfnt) at offset 0x7157 5732 bytes
font_01_sfnt_off000084bf.bin
c9fb73bc722e3a264bfb708a77ec5fc58cb34b043fb65d4bca9d8ddb1e5754c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 13968 bytes