Malicious PDF — malware analysis report

Static analysis result for SHA-256 5009c9047d044744…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 23:38:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66a7a0000d8ef87828efa291bc74ba41 SHA-1: 72f0f2d0d9524dd62c1de52e1ed34cabbdbf70bb SHA-256: 5009c9047d04474471a56cf5107f1609fa5fad326519ce237b7ede70597cec66
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to potentially malicious redirectors. The document body and embedded links suggest a lure related to 'factory reset android phone apk', which is a common theme for phishing or malware distribution. The primary malicious URL identified is https://ttraff.com/pify?keyword=factory+reset+android+phone+apk, which is flagged as a known malicious redirector.

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=factory+reset+android+phone+apk
    • http://files.ukyorthoresidency.com/uploads/1/3/1/3/131383544/fd3f1ac304.pdf
    • http://files.quielclass.com/uploads/1/3/0/8/130874316/kaxepokakupujofuji.pdf
    • http://seralid.richmondspecialty.com/uploads/1/3/0/8/130813395/poleluwu_bazase.pdf
    • http://mawewone.fx-toprebates.com/uploads/1/3/2/8/132815933/3e74dfeb.pdf
    • http://files.aeskelly.com/uploads/1/3/1/8/131856937/3847096.pdf
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/kilitadipekolabemevorirog.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/dekupalexataruzerutom.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/rfid_payment_system.pdf
    • https://cdn.shopify.com/s/files/1/0436/1430/6467/files/op_amp_comparator_circuits.pdf
    • https://cdn.shopify.com/s/files/1/0434/7750/0056/files/bobcat_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/9305/5904/files/md_state_abbreviation.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/32956986244.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/cambridge_igcse_mathematics_core_and_extended_coursebook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/3271/4139/files/hdfc_life_sanchay_plus_plan_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/73379090897.pdf
    • https://cdn.shopify.com/s/files/1/0433/8221/0725/files/kisuxutepikajodogixiz.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_off00006450.bin
2972d61e31dbb3623fb973dcc388d653affd2f8f48d0bece2d12e982dabacbf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6450 5248 bytes
font_01_sfnt_off00007628.bin
cfe6ee7bc8b04f383a39b0d51e9e553a2284085eb1b1af50b2ee60486230e0ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7628 10052 bytes

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