Malicious PDF — malware analysis report

Static analysis result for SHA-256 02abd513b05b881f…

MALICIOUS

PDF

49.7 KB Created: 2020-08-20 19:30:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79b90d9ff814bd3eaf1f4648531e75d0 SHA-1: f3788c4be66d9693bc9d70caa079d6f1abc817c6 SHA-256: 02abd513b05b881fae49d4b9517fda76146a996288d1defe90035577c37ac151
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=unduh+apk+blibli+inject', which is presented as a download lure. The document also contains a large number of external PDF links, many of which are hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=unduh+apk+blibli+inject
    • http://dinubi.hiddencharmdressage.com/uploads/1/3/0/7/130775451/fukibejofup-jafewitubikogik-totol.pdf
    • http://files.badlandsgymnastics.com/uploads/1/3/1/4/131484133/jabaxiwepidetasupu.pdf
    • http://suriraz.basilyates.com/uploads/1/3/1/6/131606457/623440.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/4029/3543/files/dan_poynter_parachute_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9216/5279/files/jedujipobijokoxoxor.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/34434853459.pdf
    • https://cdn.shopify.com/s/files/1/0428/2944/7335/files/zombie_exponential_growth_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0438/7389/4555/files/11187004719.pdf
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/leave_me_alone_images_free.pdf
    • https://cdn.shopify.com/s/files/1/0460/3546/8452/files/assessment_of_learning_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kawovuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/50575152691.pdf
    • https://cdn.shopify.com/s/files/1/0432/1312/7835/files/kefesedifosubapi.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d54.bin
2d69785c52a872677b62ef904955eb226a7d61a2823b9e3e492781ea7df2113e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D54 5156 bytes
font_01_sfnt_off00007ecf.bin
58f34ba87052762eda0d3157dd045d1b86a66484d05857d31fd71b987ab2e5db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECF 10852 bytes
font_02_sfnt_off0000a3f0.bin
b6a28b709431eac50bb90ba1bf2740a59fc21126e3f707f04f94f0806d93eb52		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3F0 16512 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.