Malicious PDF — malware analysis report

Static analysis result for SHA-256 184aa2700e3e7e4a…

MALICIOUS

PDF

64.9 KB Created: 2020-08-11 12:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3707b2dcff2877635ee7a0a3905aea1 SHA-1: a4fe3e03fe98a21bcb0c4df4598f4b431639fcc7 SHA-256: 184aa2700e3e7e4abcb411ee2b3b1f52bee73e5854872f46d56571d92851ea95
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious due to its inclusion of a large number of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bardoli+satyagraha+pdf, which is known to lead to malicious infrastructure. The document's structure suggests it is part of a link farm designed to distribute traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=bardoli+satyagraha+pdf
    • http://files.dcpd.ca/uploads/1/3/1/8/131872037/8985160.pdf
    • http://files.voicesacrossborders.com/uploads/1/3/1/4/131438692/91537.pdf
    • http://gusilur.nextlevelpthouston.com/uploads/1/3/1/4/131407406/7231711.pdf
    • http://files.friendoffaith.org/uploads/1/3/0/8/130814346/bevifax-jobosomegikek-kuxipizelezifem-limejevat.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102Hussain
    • http://smc.org.inhttp://smc.org.in
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/felatit.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/famepetiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/4527/3248/files/major_oceans_of_the_world.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8022/files/varexenatifalukexexukex.pdf
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/38542682037.pdf
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/88381248927.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1049/files/85221257608.pdf
    • https://cdn.shopify.com/s/files/1/0434/5030/2616/files/12839604968.pdf
    • https://cdn.shopify.com/s/files/1/0431/2095/1458/files/77327766.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/auckland_transport_code_of_practice.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/john_deere_la_115_manual.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/
    • http://scripts.sil.org/OFL
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular
    • https://gitlab.com/smc/meera/blob/master/COPYING
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000719e.bin
8b58a6d9e922d3278e85546623c6674dc07dab7599781b2f061162014a339430		 pdf-font-stream PDF embedded font (sfnt) at offset 0x719E 5456 bytes
font_01_sfnt_off00008428.bin
2a2f73c0ee504ae8509221dab9a50e72e6c400a18e3952d3eee660ba18a0c3b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8428 4140 bytes
font_02_sfnt_off00009145.bin
b5c6b6e0c9ada0bf1c6b02372d38a6194b0fc304f51b15768a03b7bd417def48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9145 3048 bytes
font_03_sfnt_off00009d54.bin
877920f58e5eeef58f30a774e45627f212a0fc2f95814f1bea1ebc2ebdea1dba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D54 3036 bytes
font_04_sfnt_off0000a9f8.bin
6c9b7b860876cfae7b4dfb58ff34c3bbe933c299afe9d559ce99a61998e6bc67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9F8 12296 bytes
font_05_sfnt_off0000d1bb.bin
5c971579a9757ec78140e64ead599d54fdf12b60b3cf2ea948461a3b0714b55c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BB 16364 bytes
font_06_sfnt_off0000e805.bin
0cfaca4bb5f89c70df9740475698f7723c60fa4934566cb717e926ccd4576699		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE805 3224 bytes

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