Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9e865b77d4965c4…

MALICIOUS

PDF

62.0 KB Created: 2020-08-04 23:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bda5a7cecfc547cb5067840a1e596e1d SHA-1: 1dfaf289aa62ce2ddf128f33b41dcb34cfa53e15 SHA-256: f9e865b77d4965c467ba4e2143915acb43bb9c74a754589f06a68abbd374ba0d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. The primary malicious link, https://ttraff.cc/pify?keyword=bhagwat+geeta+saar+in+gujarati+pdf, is identified as a malicious redirector. The document's structure suggests an attempt to create a link farm for SEO poisoning or to redirect users to malicious content through a series of obfuscated links.

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.cc/pify?keyword=bhagwat+geeta+saar+in+gujarati+pdf
    • http://files.supervisedvisitations.net/uploads/1/3/0/8/130874370/9228447.pdf
    • http://files.donandmargieabroard.com/uploads/1/3/1/0/131071076/f2b818fc74ed0.pdf
    • http://files.fathersweek.com/uploads/1/3/0/7/130739758/2486198.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/fopedejuxonenonib.pdf
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/48461658765.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/at_t_refurbished_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/66504836603.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/76408820421.pdf
    • https://cdn.shopify.com/s/files/1/0440/8747/6389/files/kijapemu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2748/9183/files/86489554105.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7614/files/xomopomozosedogitemulalom.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/lujajaloxipaxalasirit.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/adb_sideload_twrp.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0033/files/pezomasoxem.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/galactic_bot_commands.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/77579206304.pdf
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/rupapanutas.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068b7.bin
fa72874b8c381873b432d3b5cea9ecddba20f04e8e1c9face7d560df1136061a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68B7 6588 bytes
font_01_sfnt_off00007931.bin
ff763a91f5722859226a7c96de5fae3eb9f61cd3129cd87e806c36c9de9b41fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7931 5488 bytes
font_02_sfnt_off00008bf1.bin
b19c0f49f40e677d7bc333af4e47febe2b461a73465bee93f4f8156e64717a13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF1 6512 bytes
font_03_sfnt_off0000a116.bin
ee448ea0b942f8e3cc7ddfe0d5dc4c7c6f0a1a62bc92910c35c663b4662f014c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA116 2188 bytes
font_04_sfnt_off0000ab1b.bin
c5b4308bbc127d3a33e81827e3ccbec7b6f6d01182e9149b85ddeba9bb18cb9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB1B 10372 bytes
font_05_sfnt_off0000cea7.bin
7047a3c470dba4eade9fde61a3b4eb742b9247f82fc76f482264e5d98e24e14f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA7 17136 bytes

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