Malicious PDF — malware analysis report

Static analysis result for SHA-256 63df25827ed4051b…

MALICIOUS

PDF

65.0 KB Created: 2020-08-20 13:27:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a7e6796dc81ba26bfc5201635c7c889 SHA-1: e6a655e336700c7357dfdc58beeb5354b5105524 SHA-256: 63df25827ed4051bd074ddbe1fd64dbb1a391bc1c0cd7df474b57316e0413e9f
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which are hosted on Shopify but appear to be part of a link farm. One critical heuristic identified a redirector link to 'ttraff.cc', which is known malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded links likely serve to distribute further malicious content or phish for user credentials.

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.cc/pify?keyword=vedic+natal+chart+report
    • http://wepite.afrogood.com/uploads/1/3/1/0/131070702/xesuvoguteseloz_kogoluxosozu_jenizuwuz.pdf
    • http://files.shadysideofthetracks.com/uploads/1/3/1/4/131406762/9744250.pdf
    • http://vabaze.citizensfor1.com/uploads/1/3/1/4/131453133/7cc546db26f93.pdf
    • http://lokuzexul.lakehomesofnh.com/uploads/1/3/1/3/131398294/pujurevokowux.pdf
    • http://vewemudu.mohinisblogs.com/uploads/1/3/1/0/131070761/keraworefesun.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/dogipibep.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/logazuxed.pdf
    • https://cdn.shopify.com/s/files/1/0441/1172/4696/files/jutarosusupolu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6440/0798/files/77140454787.pdf
    • https://cdn.shopify.com/s/files/1/0431/8360/3873/files/80278048706.pdf
    • https://cdn.shopify.com/s/files/1/0440/6640/6550/files/bp_chart_age_wise.pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/21433504952.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/19357284772.pdf
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/tamemuwiwalupepirinif.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d61.bin
a980b8f14e04698ffa714196868ee55de9cfe2d267e7c6ce3cf683e198dab526		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D61 4948 bytes
font_01_sfnt_off00007e1d.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1D 3720 bytes
font_02_sfnt_off0000897e.bin
f1bcf951af1c7005e38f3ceef26bd0824463c4225874169f150b5efc4069f9c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x897E 11128 bytes
font_03_sfnt_off0000a79e.bin
5a6c7445f0fb560ca536db3c602267f3e38aa8ffaeff8f7ff956b1ac0e4c8499		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA79E 10420 bytes
font_04_sfnt_off0000cb7d.bin
18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7D 16144 bytes
font_05_sfnt_off0000e0b9.bin
1e1c3f07ff3bdabe1289988fb40818505e04a4155f52145eb8627b0d85350557		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B9 5988 bytes

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