PDF malware analysis — malicious · 981da315941374ed

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 06:00:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 12e71e03841b5118ab45feacaefa8009 SHA-1: d3eb5f92c0da88eef8ca135e144ac82bc50817a9 SHA-256: 981da315941374ed131b0e34145b09b2a3b3db97bdd36f8df37e2b6e9949b085

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=aarti+mata+ji+ki+pdf, which is flagged as malicious. This suggests the document's primary purpose is to trick users into visiting a malicious site via a seemingly benign link.

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=aarti+mata+ji+ki+pdf
- http://files.shascotland.org/uploads/1/3/2/7/132740836/ribidixafe_busuligamonixe.pdf
- https://cdn.shopify.com/s/files/1/0431/0050/4217/files/balul.pdf
- https://cdn.shopify.com/s/files/1/0429/9508/9559/files/xajowisofizizidewa.pdf
- https://cdn.shopify.com/s/files/1/0434/0151/1068/files/axial_flow_compressor_design.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdf
- https://cdn.shopify.com/s/files/1/0436/7224/0293/files/80231133912.pdf
- https://cdn.shopify.com/s/files/1/0439/3703/8491/files/read_giovanni_s_room_online_free.pdf
- https://cdn.shopify.com/s/files/1/0432/5654/5433/files/functions_of_essential_fatty_acids.pdf
- https://cdn.shopify.com/s/files/1/0437/9397/3405/files/79832424127.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000051fd.bin` `4dfb76a715fcf5a747b3c199af06573478a80e7405287c345aa589b4ce141d78`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x51FD	5108 bytes
`font_01_sfnt_off0000634d.bin` `eb903a4bcabb0673128613fc2c6a3b3be6b6be0204d11159aa2f590e1d82ee93`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x634D	3740 bytes
`font_02_sfnt_off00006ec5.bin` `cb8f6484475630af05fa4d17836b75b5d5dd90fad939cdb31fac7724d44628ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EC5	9516 bytes
`font_03_sfnt_off00008f98.bin` `37ca86841b82fd3fa66dcfae972f7a6a703ddb9e6e0dae95fda390ba0daaa2e3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F98	4080 bytes

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