Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f9245eea1da9b1f…

MALICIOUS

PDF

41.3 KB Created: 2020-08-20 13:13:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92e452c71e2260c28c05578cb63c337f SHA-1: 42f1ddfb8ed5712f4804d7e258e7685146a28c55 SHA-256: 1f9245eea1da9b1fdc4d1aa35dbd7e7e8ac96825233f54769bbb54dcc92ce023
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for a 'free survey template'. The primary malicious link, https://ttraff.cc/pify?keyword=free+survey+template+word+document, is designed to redirect users to potentially harmful content. The presence of numerous links to Shopify, while some are benign, suggests a tactic to obscure the malicious redirector among seemingly legitimate resources.

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.cc/pify?keyword=free+survey+template+word+document
    • http://rewiw.ccmun.ca/uploads/1/3/2/6/132682124/vibibilavuzomu_rigozixumomo_gelana_negaxaz.pdf
    • http://files.preferredstockhomeandgift.com/uploads/1/3/1/4/131454436/vabozafowof-pajob-nuluzatasadap.pdf
    • http://jokuxez.silverthreadsupholstery.com/uploads/1/3/1/3/131383652/gisagezekugi_lefadilodusi_mokiruxetixuga.pdf
    • http://figinafa.celinehavard.com/uploads/1/3/0/8/130813784/japafatinon.pdf
    • https://cdn.shopify.com/s/files/1/0430/0826/2297/files/social_media_marketing_strategy_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/21408989210.pdf
    • https://cdn.shopify.com/s/files/1/0432/2682/4859/files/wodejodageniriwas.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7505/files/a_flowering_tree_summary.pdf
    • https://cdn.shopify.com/s/files/1/0435/3343/5032/files/mojodasatawomewutezaw.pdf
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/ropiwudulibosevodujibi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/blended_wing_body_design.pdf
    • https://cdn.shopify.com/s/files/1/0437/2326/0058/files/w_fragen_mit_prpositionen_bungen.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_off000062c6.bin
1e5b19cec3b149d7254b5c374bd0d8420759dc412ebf632e6fa6451fcbed8246
pdf-font-stream PDF embedded font (sfnt) at offset 0x62C6 5428 bytes
font_01_sfnt_off00007540.bin
5158639dbba0c55b38d24089bd4f0f8e313e2e649068d4c0fe8f1db9d07e4cbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7540 10400 bytes