Malicious PDF — malware analysis report

Static analysis result for SHA-256 a184a3f7f531253e…

MALICIOUS

PDF

65.8 KB Created: 2020-08-21 02:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8954b86d96e05243723d5dcb8d2bcad0 SHA-1: 5ac5bbad67ade4dd73c006a7806393b55c22d6f1 SHA-256: a184a3f7f531253e38814bebdaf023e20e54be1d91b0a6b7378c23192b2dcaab
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=xiaomi+mi+a3+android+one+fiyat'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, with the primary one being 'https://cdn.shopify.com/s/files/1/0432/6473/7448/files/39205078301.pdf'. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, reinforcing the lure. No scripts were extracted from this sample.

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=xiaomi+mi+a3+android+one+fiyat
    • http://sosose.valiantfew.org/uploads/1/3/1/4/131437502/wapijevaxo-posaza.pdf
    • http://bukimi.alaskabg.org/uploads/1/3/2/6/132695924/5771287.pdf
    • http://jukopavel.weswarriormusic.com/uploads/1/3/1/4/131438379/54cdc64062c99.pdf
    • http://pidakes.rtapps.co.uk/uploads/1/3/1/3/131379655/2709096.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/39205078301.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/949986333.pdf
    • https://cdn.shopify.com/s/files/1/0431/5319/5165/files/86931715772.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93527538138.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1622/files/how_to_write_a_discord_bot.pdf
    • https://cdn.shopify.com/s/files/1/0434/8595/4208/files/83920918659.pdf
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/free_music_and_listen_offline_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/49349717986.pdf
    • https://cdn.shopify.com/s/files/1/0431/8740/4968/files/44110752041.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_off0000acb4.bin
07589f02adf1070670962386358e6f85686ee73d3751b8c2c0e3f05902e4b737		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACB4 4872 bytes
font_01_sfnt_off0000bd26.bin
d55346c3a19d7b35d6f7be1789455e20c79f346516b74d2b05dfa11f414efe6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD26 15344 bytes
font_02_sfnt_off0000ec30.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC30 4324 bytes

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