Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9cbbc57c159858e…

MALICIOUS

PDF

38.8 KB Created: 2020-09-05 10:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 539707dcc55bb57a0c95ba09f469867e SHA-1: b80cd98593c7786084fd79119f8d90aaabfe8a6b SHA-256: c9cbbc57c159858e1891184a2d7b017d8bbb460cca02711987dfed387dbe0b00
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains text related to a 'person tracker toolkit app apk' and includes the malicious URL. This suggests a social engineering lure to entice users to click the link, which then redirects to malicious infrastructure.

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.me/wix?keyword=person+tracker+toolkit+app++apk
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/aithihyamala_malayalam_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/7090/6780/files/fight_club_bollywood_movie_download.pdf
    • https://cdn.shopify.com/s/files/1/0458/9748/2394/files/kelly_clarkson_american_idol_performances.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdf
    • https://cdn.shopify.com/s/files/1/0440/3609/6150/files/xesagagifu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/metodologia_dela_investigacion_en_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/dukorilibo.pdf
    • https://static.usrfiles.com/ugd/0b46e6_19346ccb678341a79b84dcc64775c4c4.pdf
    • https://static.usrfiles.com/ugd/ce5d00_f6bdec4dfad3491b8da5bc63af4d7dd3.pdf
    • https://static.usrfiles.com/ugd/5b5da7_cee39eee3ba642ceae8754bc0311e826.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38138836364.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/33024385764.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7300/files/facebook_cover_template_2019_psd.pdf
    • https://cdn.shopify.com/s/files/1/0471/0400/0150/files/sibafozetadegovulazujatal.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/vogeruxizigabosivadob.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_off00004f2d.bin
513d5a9118174e9c4330ae7c5fd9607b6f870a3bfb1ce94b5ba7e75dd22ffc14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2D 2900 bytes
font_01_sfnt_off0000596e.bin
89127bc039ca89e8573e26639278dd12209fd74b795a7d0806ddf2c09634720b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x596E 4992 bytes
font_02_sfnt_off00006a7a.bin
a721b4394feb5f92157195d045931552ac417b012f8e621786c123fc11219d04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7A 10412 bytes

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