Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6414ec1a88a5537…

MALICIOUS

PDF

54.7 KB Created: 2020-08-10 03:04:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62ccebcadd6d67ade68271152aadbd08 SHA-1: d1a30a4a02bfcb49715dba93208f71f84c55219e SHA-256: c6414ec1a88a5537af7e644e5fd84ad841bae4e92ede89c3e2906df8607392f0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=adaptive+suspension+system+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0430/5027/0869/files/jijil.pdf' being one of the first identified. The document body, though heavily obfuscated, contains these URLs, suggesting the primary intent is to trick the user into clicking the malicious redirector.

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=adaptive+suspension+system+pdf
    • http://files.starks-photography.com/uploads/1/3/1/3/131379266/7688481.pdf
    • http://guguvuj.mathwithmichellemallahi.com/uploads/1/3/1/4/131438216/938773.pdf
    • http://tadilifam.pcmusicinstruction.com/uploads/1/3/1/6/131607163/fobudel.pdf
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/jijil.pdf
    • https://cdn.shopify.com/s/files/1/0438/0426/2561/files/49766163169.pdf
    • https://cdn.shopify.com/s/files/1/0435/7727/8627/files/kafilenavatuwamisol.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9195/files/13101580154.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/94136419474.pdf
    • https://cdn.shopify.com/s/files/1/0434/2064/7576/files/25979483538.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3961/files/5753671548.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/jiragovibufapevotulepuzam.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/77769210539.pdf
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/68851194813.pdf
    • https://cdn.shopify.com/s/files/1/0438/0141/1744/files/special_occasion_speech_topics.pdf
    • https://cdn.shopify.com/s/files/1/0438/1117/6610/files/que_es_el_neoliberalismo_y_sus_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/anestesia_regional_paso_a_paso.pdf
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/98742144609.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_off00008bba.bin
fe516632ff8b309dbe576cf2e40dc79df03c4d9a00762df884bba064ec57fdca
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBA 5092 bytes
font_01_sfnt_off00009d0b.bin
1a3890c80651077c16bad3f69cfb3b155a480bc8c677903be811f03d6622e4dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0B 10200 bytes
font_02_sfnt_off0000bfea.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xBFEA 4324 bytes