Malicious PDF — malware analysis report

Static analysis result for SHA-256 30aaa031cbe055dc…

MALICIOUS

PDF

50.8 KB Created: 2020-08-29 15:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4280ffefbd775c32f6b1015a283e2ed SHA-1: bf7feabee6799ad5c128c6d62503fb6c97352651 SHA-256: 30aaa031cbe055dc0b164f4bf73a8d1bf1ab40cfe824b80e717f58772b07f294
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a PDF link farm. One of the primary links, 'https://ttraff.ru/wix?keyword=strumming+pattern+for+riptide', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to drive traffic to malicious infrastructure.

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/wix?keyword=strumming+pattern+for+riptide
    • https://cdn.shopify.com/s/files/1/0430/8621/7365/files/ramezikasojolisalozijif.pdf
    • https://cdn.shopify.com/s/files/1/0436/2135/1587/files/witcher_3_werewolf_regen.pdf
    • https://cdn.shopify.com/s/files/1/0430/7641/9744/files/47989962681.pdf
    • https://static.usrfiles.com/ugd/b8c837_e3b43b291c5e40c28f94e13b21089103.pdf
    • https://static.usrfiles.com/ugd/b8c837_a643dda5e3f54544914d59487ff8ba11.pdf
    • https://static.usrfiles.com/ugd/b8c837_26bb621c7d8248298c8faafd44e75198.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee299560ee4442fbb99473f9bbd577f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_a23d302d84f44745abc39ae295659b60.pdf
    • https://static.usrfiles.com/ugd/b8c837_78b162e72da3437086b193559b6a6bf9.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca74d9dd5a584ad8b942c1ef8aaa3821.pdf
    • https://static.usrfiles.com/ugd/b8c837_7d047baad8b8452b82b0280e8bf11a21.pdf
    • https://static.usrfiles.com/ugd/b8c837_b3ac721f6209430e97512b755d429ab6.pdf
    • https://static.usrfiles.com/ugd/b8c837_de645057731a4d4885797e5ec200911f.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.

FilenameKindSourceSize
font_00_sfnt_off000062eb.bin
e8330684e81f1bf1848a20cef8585aeadaadac0e1805e03b7e923e941a8b687b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 5252 bytes
font_01_sfnt_off000074a9.bin
6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A9 1800 bytes
font_02_sfnt_off00007d39.bin
77292ba69d4a2cf7f1378edb4fd2d1b3b4d8276248ad7fa0a5b2413efc9a30ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D39 13708 bytes
font_03_sfnt_off0000a892.bin
168bb4f8c4881840f3528cc6762a3d09e48c29729fe1717745c972ebd0761146		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA892 16096 bytes

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