Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae7bab20f8351c1…

MALICIOUS

PDF

50.1 KB Created: 2020-09-01 21:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 837cb1f826170a1df76121280a49bbd0 SHA-1: 9175a1f0d1cc333fa61a348a3aa1576495e9bd1b SHA-256: 8ae7bab20f8351c1adab9f7b5dbb755924aba95ec6e6361367b1f6cddd3b157d
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=computer+graphics+forum+latex+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on cdn.shopify.com. The document body also contains a callback lure, suggesting a potential phishing or tech-support scam pretext. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=computer+graphics+forum+latex+template
    • https://cdn.shopify.com/s/files/1/0461/9658/8695/files/eclipse_juno_dark_theme.pdf
    • https://cdn.shopify.com/s/files/1/0439/0813/7128/files/acme_external_thread_chart.pdf
    • https://cdn.shopify.com/s/files/1/0463/2752/9633/files/11532571915.pdf
    • https://cdn.shopify.com/s/files/1/0430/6835/8807/files/jexanosozefe.pdf
    • https://cdn.shopify.com/s/files/1/0429/5049/2323/files/31328897813.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/lanuledekobamefivisef.pdf
    • https://cdn.shopify.com/s/files/1/0463/8687/2475/files/wawej.pdf
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/19342475832.pdf
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/85464713136.pdf
    • https://cdn.shopify.com/s/files/1/0434/1917/3029/files/anchoring_script_for_freshers_party.pdf
    • https://cdn.shopify.com/s/files/1/0440/8963/9077/files/65132806125.pdf
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/gopurafilutiforanaluwugad.pdf
    • https://cdn.shopify.com/s/files/1/0438/9725/8136/files/minority_report_movie_review_rotten_tomatoes.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/adobe_indesign_trial_windows.pdf
    • https://cdn.shopify.com/s/files/1/0433/8683/1004/files/gefinenazawepewisib.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_off0000845a.bin
26c284aea43b065a5ad77629b229aa647012fe2f788873da87744bde8e82181c
pdf-font-stream PDF embedded font (sfnt) at offset 0x845A 5404 bytes
font_01_sfnt_off00009693.bin
b576f5dda7122fc1f7f378431a52fede07873356ab753a21a1088e00aa6db52f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9693 10744 bytes