PDF malware analysis — malicious · 50f359a1b88b4c48

MALICIOUS

PDF

47.2 KB Created: 2020-09-04 04:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0102b9e7f546d9c38421ccc9d7962174 SHA-1: 0817651566691ada17d72d958b5d7ed0bb4b98af SHA-256: 50f359a1b88b4c48c925a74eeb4573e7cedc485a47a9302a2076b285f90c2cec

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link that redirects to a malicious URL, disguised with a keyword relevant to game development. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this behavior. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, suggesting a broad distribution effort. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, but the presence of a malicious redirector is sufficient evidence for this assessment.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=2d+game+ideas+for+android
- https://static.usrfiles.com/ugd/c7ef1a_7b2f83347abe41539a589fedf21ddcbd.pdf
- https://static.usrfiles.com/ugd/b8c837_c3954f0b56d548478077c4952f816435.pdf
- https://static.usrfiles.com/ugd/04e6f9_0b2764d3d6cd40188bffeeccb0d339fe.pdf
- https://static.usrfiles.com/ugd/b8c837_f63fa5da256941cfae0d6e715e33bf67.pdf
- https://static.usrfiles.com/ugd/735189_98df9a9c122a4d3dba6b2108e1d6a21b.pdf
- https://static.usrfiles.com/ugd/b8c837_76f932b196824316a4628a6ba031b801.pdf
- https://static.usrfiles.com/ugd/338562_10a28e66129c419b81aeb1064dba0008.pdf
- https://static.usrfiles.com/ugd/b8c837_3bf7263bb05a4677a9a3ee81b261f641.pdf
- https://cdn.shopify.com/s/files/1/0437/0720/3739/files/beauty_spa_game.pdf
- https://cdn.shopify.com/s/files/1/0434/8359/4917/files/cinematic_sound_effects_pack_free_do.pdf
- https://cdn.shopify.com/s/files/1/0435/1705/1048/files/81062209595.pdf
- https://cdn.shopify.com/s/files/1/0435/9805/3539/files/sheet_metal_gauge_conversion_chart.pdf
- https://cdn.shopify.com/s/files/1/0429/7372/4825/files/dulajogusubowadudal.pdf
- https://cdn.shopify.com/s/files/1/0435/3789/1482/files/kambikuttan_cartoon.pdf
- https://cdn.shopify.com/s/files/1/0429/1110/5191/files/31814810111.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007b0e.bin` `51263c3d7af16b9120ce0b7b722af459a8203642c09a6bde39009fff89d10f35`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B0E	5232 bytes
`font_01_sfnt_off00008cc6.bin` `3c7b7844296298d46e97f624205f69d5ca042c08b78e248007f9f6154f858487`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CC6	10460 bytes

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