PDF malware analysis — malicious · c487f18a033c6a9c

MALICIOUS

PDF

82.1 KB Created: 2020-09-09 01:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e2aafbd8ad2fb9f3d608893f31cf3c88 SHA-1: 6eb71c019d1cff5b925a246d4107d7db414a79f0 SHA-256: c487f18a033c6a9c0f6faa636ce5be307d81414d94e656f5445dcb7df5779d72

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a link farm with 24 external PDF links, many pointing to static.usrfiles.com. The embedded URL, 'https://ttraff.ru/pify?keyword=desolace+leveling+guide+horde', is the primary indicator of malicious intent, likely serving as a lure or redirector.

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=desolace+leveling+guide+horde
- https://static.usrfiles.com/ugd/97634b_5933e3d3d14b45e8be36f6200706e7aa.pdf
- https://static.usrfiles.com/ugd/d43733_07437d66065741da89da9420406038a7.pdf
- https://static.usrfiles.com/ugd/9d66c7_115c163131bc49638b4a1c7a6cd42ee7.pdf
- https://static.usrfiles.com/ugd/e9cba9_de534bf7bb0349f0a257458471942431.pdf
- https://static.usrfiles.com/ugd/0047a4_e87ff9c7accf4ffd9c718fdf2f09a391.pdf
- https://cdn.shopify.com/s/files/1/0435/1095/6196/files/puwavelopikaxilafalok.pdf
- https://cdn.shopify.com/s/files/1/0429/8168/7459/files/222545539.pdf
- https://static.usrfiles.com/ugd/e3834b_f73f0f0ca54d4eb7b3f55cf4a9928207.pdf
- https://static.usrfiles.com/ugd/1acd69_01e06174c63f43c9bddba6aca056754f.pdf
- https://static.usrfiles.com/ugd/d2b720_9a7b40cbbbf1462db03aeac3d7ff0b90.pdf
- https://cdn.shopify.com/s/files/1/0432/5575/9011/files/kexapawajuleve.pdf
- https://cdn.shopify.com/s/files/1/0438/0036/3169/files/33218180128.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_off0001051c.bin` `bbdcfcefff3e0bc5425d190bcd5c48fe38de1fa31153b5beeb84b89807cd79a4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1051C	5260 bytes
`font_01_sfnt_off00011701.bin` `8ad69bfb7d6128ee8a601a467ff1760a88ce9ff4cabc11df4c5663d2421c1b4b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11701	10776 bytes

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