Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1d0ef8956b3e366…

MALICIOUS

PDF

59.8 KB Created: 2020-08-10 18:57:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f3c97c9a5f0dbcca93e138346c780e5 SHA-1: 76897cf9aeacf5e8d8771fd726b242ef78e4f070 SHA-256: f1d0ef8956b3e366016af283f8d6b4a000cf8406f7349db9b229b425c5032c84
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a prominent one leading to a redirector URL. This redirector is designed to lure users into downloading content, likely malicious, by disguising it as a 'keto made easy' PDF. The PDF structure and the presence of a link farm suggest a phishing or social engineering attack aimed at driving traffic to malicious sites.

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=keto+made+easy+pdf+free+download
    • http://files.westriseelectric.com/uploads/1/3/0/8/130874329/5412276.pdf
    • http://files.maymaysalvosa.com/uploads/1/3/2/7/132712558/xipusulaxev.pdf
    • http://files.madeintheglades.com/uploads/1/3/2/8/132815004/9786959.pdf
    • http://files.tryhardkitchen.com/uploads/1/3/1/6/131606046/bipisosuwiputogeleje.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/degopo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/20066014240.pdf
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/25105065337.pdf
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/barracoon_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/4464/1695/files/sportcraft_electronic_dartboard_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6794/0765/files/86019991169.pdf
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/shri_durga_argala_stotram_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6812/9431/files/56118255977.pdf
    • https://cdn.shopify.com/s/files/1/0433/3142/0319/files/jikajagixiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/mujebiw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/pabivumajudusopasisenos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/zomanodibimetumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/kimagijuporawupibug.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_off00009feb.bin
2397ffe9f0aab60fbbc93d1eec4cd01190271bf96d422afedd842dcf85714b61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEB 5352 bytes
font_01_sfnt_off0000b225.bin
2b94b3fb13ed96e9df906aee2c3d35091fe5e0ad158e90f318978706a25b804e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB225 14896 bytes

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