Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc59c5e10d6ee6f8…

MALICIOUS

PDF

43.6 KB Created: 2020-08-07 05:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1495dbf7f02b10a41b82263337688b1 SHA-1: 500c7d3fb46a1535716e78522c34bed7c585741c SHA-256: fc59c5e10d6ee6f8980dc1eb905623433c4df82e12ab9f949f2483e848d6af0b
130 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector at 'https://ttraff.ru/pify?keyword=marriage+certificate+download+pdf'. The document body, though heavily obfuscated, contains fragments of the lure text and the malicious URL. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility and clicks.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=marriage+certificate+download+pdf
    • http://files.shopglowonline.com/uploads/1/3/0/8/130815137/148c5c68c5a1.pdf
    • http://salopoz.starseedallianceinternational.com/uploads/1/3/2/7/132712615/bitilugezuv.pdf
    • http://gugexuj.1point21photobooth.com/uploads/1/3/0/8/130874493/3851339.pdf
    • http://files.heracleous.org/uploads/1/3/0/7/130740211/4243835.pdf
    • https://cdn.shopify.com/s/files/1/0440/3150/8645/files/tegikaximonigizusu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/senna_bicapsularis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9029/7507/files/94736198685.pdf
    • https://cdn.shopify.com/s/files/1/0429/4252/9695/files/redixorofanewifas.pdf
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/mubeferakabexoxuxoxafij.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/git_clone_specific_commit.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/65744949221.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bolosenisom.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/xajarugoxetafo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/27399750946.pdf
    • https://cdn.shopify.com/s/files/1/0440/7879/2869/files/48141621407.pdf
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/xexavodofigujuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/9647/3749/files/36093985134.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_off00005e75.bin
dc219e48e5e40e96011dc994e51a8725ebb8e7ab5e0dac81a9266ccdf1d80a6e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E75 5028 bytes
font_01_sfnt_off00006faf.bin
dd62513eefc38bf4b62b8ef1fb93dfa8ead4e187558a1c05a3791b05bfdcbf3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAF 10416 bytes
font_02_sfnt_off0000935d.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x935D 4324 bytes