Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e8d86fdab5298f…

MALICIOUS

PDF

46.0 KB Created: 2020-07-31 11:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55b0bb15b252c49749d175264654c244 SHA-1: ce6d512c420b5211e692d2cac9c1f067bb635fb5 SHA-256: 88e8d86fdab5298f5b6e27325628e03043eb0dbfacd009c09996f868928903bd
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=alopecia+femenina+tratamiento+pdf'. This URL is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains keywords related to 'alopecia' and 'tratamiento pdf', suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy, potentially to obscure the malicious redirector.

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=alopecia+femenina+tratamiento+pdf
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdf
    • http://files.bonelabradio.org/uploads/1/3/0/8/130874101/461220.pdf
    • http://files.sunnyandsavvyrootsco.com/uploads/1/3/0/9/130969200/fukodidogeka.pdf
    • http://files.newtonpresbyterianchurch.org/uploads/1/3/2/6/132680852/acbdc1e.pdf
    • http://files.newtonpresbyterianchurch.org/uploads/1/3/2/6/132680852/
    • https://cdn.shopify.com/s/files/1/0431/9258/2293/files/benipuposanixemikivu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6182/1092/files/79363256219.pdf
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/gumuviza.pdf
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/velugidipaguketirujux.pdf
    • https://cdn.shopify.com/s/files/1/0437/8093/1742/files/66602580083.pdf
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/31241879575.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/9723761456.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rixozuxixewu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0917/1879/files/10700285054.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/40861224270.pdf
    • https://cdn.shopify.com/s/files/1/0436/2688/9378/files/xusozelowedujumezudutu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/vuxexulovotisojalodowul.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/30295946908.pdf
    • https://cdn.shopify.com/s/files/1/0428/1656/9500/files/gezitafis.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_off000073b0.bin
60a86f9e22daf3bcf0ece03b8112beb86c044b2797931d80534732703c3bfe9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B0 4900 bytes
font_01_sfnt_off00008433.bin
b06731116aef5d3002fa3235967c77bbe423a79548b286c58f8cb90b6119670b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8433 11480 bytes