Malicious PDF — malware analysis report

Static analysis result for SHA-256 c620f068f6f9ba78…

MALICIOUS

PDF

59.0 KB Created: 2020-08-24 23:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0444c4015becfda3ef768b582fa9a616 SHA-1: 36d92ecbcf78b393a0d03174f3fd14e5fde45439 SHA-256: c620f068f6f9ba7861508a8be9ee875d2dfddd67b086ff05c7cb1495e6862e5b
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm. One of the embedded URLs, 'https://ttraff.com/pify?keyword=new+baby+punjabi+status+video', is identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the same redirector URL, reinforcing its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=new+baby+punjabi+status+video
    • http://files.evilgeniusentertainment.com/uploads/1/3/2/7/132712306/suroj_giwufamiwibo.pdf
    • http://files.thepinkmews.com/uploads/1/3/2/6/132681303/towitesarozupujak.pdf
    • http://files.victoriaedgarr.com/uploads/1/3/0/7/130775434/1978109.pdf
    • https://cdn.shopify.com/s/files/1/0428/9380/3679/files/56439581157.pdf
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/baldur_s_gate_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0448/0565/2637/files/agile_bertrand_meyer.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/wawir.pdf
    • https://cdn.shopify.com/s/files/1/0428/8810/2051/files/fluid_and_electrolyte_balance_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0437/9115/5361/files/calculus_trig_identities_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0436/8583/9003/files/90579910057.pdf
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/basic_electric_guitar_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/4620/7637/files/cycling_jersey_design_template_uk.pdf
    • https://cdn.shopify.com/s/files/1/0440/3340/9174/files/general_supplies_company_profile_in_kenya.pdf
    • https://cdn.shopify.com/s/files/1/0454/2342/7752/files/xexuwejijedililagilavil.pdf
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/poster_templates_for_events.pdf
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/jeppesen_multi_engine_manual.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_off000092db.bin
4a29f23b583997abe6c5eb83d4e1edb6df29353a0e4f27a33d01f07e44f1b77e
pdf-font-stream PDF embedded font (sfnt) at offset 0x92DB 5148 bytes
font_01_sfnt_off0000a484.bin
555612933b096f8a5aa0634098933852da0dce17cfdd242d516ad76711650284
pdf-font-stream PDF embedded font (sfnt) at offset 0xA484 14276 bytes
font_02_sfnt_off0000d0ac.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AC 4324 bytes