Malicious PDF — malware analysis report

Static analysis result for SHA-256 2134d501e8ac8154…

MALICIOUS

PDF

43.7 KB Created: 2020-08-16 00:59:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d9d0143bbb0b579a5650bca7a6ef1f0 SHA-1: c8717a8fa88eb71bca2a5bc84dd4611fb587264d SHA-256: 2134d501e8ac81548da7c487e6085e225567cdecafac8ed4f18f269ccbb5ab90
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating it is a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=carnivalee+freakshow+normal+font. The document body appears to be obfuscated or corrupted, but the presence of numerous links, including to a redirector, strongly suggests a phishing or malware distribution attempt.

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=carnivalee+freakshow+normal+font
    • http://files.cheffurdell.com/uploads/1/3/1/4/131406736/gafefowedixi.pdf
    • http://files.paulsfranchiseleague.com/uploads/1/3/1/4/131438249/kabuvoxije_kuvorenuzixuw_raxejusub.pdf
    • http://files.longocreative.com/uploads/1/3/2/6/132695867/2841820.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/5403533685.pdf
    • https://cdn.shopify.com/s/files/1/0446/6864/9625/files/halmahera_barat_dalam_angka_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/33814795992.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/fewenapetezenewipuboj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/87195071515.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/68682267489.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/preferred_stock_dividends_balance_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/0789/3919/files/kurixajomokidutegamu.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_off00004dea.bin
38ee97bd055840237b1a75bef2111ede8c70735d733d4892ff5b1a69dbdae079
pdf-font-stream PDF embedded font (sfnt) at offset 0x4DEA 5128 bytes
font_01_sfnt_off00005f47.bin
ede46d34d1a36e85293643e3e7c9e9dfd86626a5a38de79b1c03af6cf2aed013
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 14228 bytes
font_02_sfnt_off00008cab.bin
2035f935585cdc4f1ecedcfd056720a03f0b49e8a08c43efcdc310701c2d703b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAB 16196 bytes