Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9a5868878eb41b…

MALICIOUS

PDF

44.2 KB Created: 2020-08-14 05:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3da0c2fb4f3248f3c3b0a039d7b38218 SHA-1: df43e8061ad8c25a667629754100143092d299f9 SHA-256: 4a9a5868878eb41b38547da5a035f6db7fde1e86248d59bf89bee835f35ff39d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common technique for SEO link farms and redirecting users to malicious sites. One prominent link directs to 'ttraff.ru', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Jennifer Lopez' and a URL that appears to be part of the lure. The presence of multiple PDF links, including those hosted on Shopify, suggests an attempt to distribute malicious content through seemingly benign platforms.

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=jennifer+lopez+ain%2527+t+your+mama++free
    • http://ketaxak.luckylifebymeg.com/uploads/1/3/2/3/132303382/aa41ec.pdf
    • http://files.martinegabisondesign.com/uploads/1/3/1/6/131606115/bamaxo.pdf
    • http://files.danielandnatasha.info/uploads/1/3/0/7/130775229/zowadotevemojego.pdf
    • http://files.doubletakeproductions.shop/uploads/1/3/2/7/132712505/27207d0834.pdf
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/63784500994.pdf
    • https://cdn.shopify.com/s/files/1/0447/0338/3708/files/rent_lease_agreement.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rokagarunawawutasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/95634986648.pdf
    • https://cdn.shopify.com/s/files/1/0433/8073/6150/files/staphylococcus_aureus_infection.pdf
    • https://cdn.shopify.com/s/files/1/0431/8530/7810/files/guzaladeguvexezovalalup.pdf
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/xavegojemiwubajawusuletim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9999/6839/files/31341221861.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/rumubik.pdf
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/79045749775.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000487a.bin
ef20d6eba1feb5c5ecf2ec272d84384f0113c434fc93e7bbb04bff5d25a83002
pdf-font-stream PDF embedded font (sfnt) at offset 0x487A 4928 bytes
font_01_sfnt_off00005930.bin
306008a70edfe83110067ee43777f689c579f1de8d7c44b5363480c7ae0dbb1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5930 9000 bytes
font_02_sfnt_off00006b4d.bin
66db087a59b517307be910646fda09e03f72ad3d4ddc97aa4b389824de6dc3c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4D 13240 bytes
font_03_sfnt_off00009522.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9522 4324 bytes