Malicious PDF — malware analysis report

Static analysis result for SHA-256 2372c2c8882f5c75…

MALICIOUS

PDF

53.0 KB Created: 2020-08-09 10:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56bb527753e6c1043db709b2693e6f75 SHA-1: b895e9db54d98d8686f4f0c1192105445684adce SHA-256: 2372c2c8882f5c755d71d50aaeceeebeca3170a797c866f0a51c7f3b31316ba7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This indicates a link farm or redirection tactic to obscure the final malicious destination. The document body, though corrupted, contains text related to 'Jawahar navodaya admission form pdf', suggesting a lure to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure itself is used for malicious redirection.

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=jawahar+navodaya+admission+form+pdf
    • http://files.radcliffchristianchurch.com/uploads/1/3/1/4/131452740/xafevisukojigof.pdf
    • http://begago.eespip.eu/uploads/1/3/0/7/130775934/274540.pdf
    • http://files.silenthands.net/uploads/1/3/2/7/132712306/xozadobarenabunatag.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/2281026256.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/49746066364.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/96775238238.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/kunulusoxiloke.pdf
    • https://cdn.shopify.com/s/files/1/0438/3775/1456/files/jurnal_ascomycetes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/fios_tv_guide_arlington_va.pdf
    • https://cdn.shopify.com/s/files/1/0434/0393/5902/files/kufotevuparukofofoges.pdf
    • https://cdn.shopify.com/s/files/1/0431/6469/6738/files/genuxup.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/94099923579.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/nakigadenuxefup.pdf
    • https://cdn.shopify.com/s/files/1/0436/3629/3785/files/echo_dot_not_registered.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6731/files/nanagofowetigizekotubot.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/50896441728.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_off00007ca3.bin
84af01c4d1368d47e4b77ecd28e53c151cf457772132fa5527a0a6519a6ca209
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA3 5492 bytes
font_01_sfnt_off00008f48.bin
7438cf49f488d9867f6b159738497d869660977942d501ae97ab946832aece9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F48 10960 bytes
font_02_sfnt_off0000b3f2.bin
8bdddb84815f751ad0cf5266476bd4daba3a88c157a1efbe0812f1bf14315c0a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3F2 5200 bytes