PDF malware analysis — malicious · f8c5e880a7f453ca

MALICIOUS

PDF

45.2 KB Created: 2020-09-01 13:25:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0d5d4c25b15a8391ebda46165e4e9ffe SHA-1: 8f41a2451829183ab83241e216668562bcdb8d92 SHA-256: f8c5e880a7f453caa4221340eb801d9bdf9dea3d5af458575928b5381501f06a

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=automower+installation+guide'. Additionally, another critical heuristic indicates a PDF link farm, with multiple external PDF links. The document body, though partially corrupted, also contains the same redirector URL and several other PDF links. The 'SE_MFA_LURE' heuristic suggests the intent is to phish for credentials or abuse multi-factor authentication, likely facilitated by the redirector.

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.
MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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=automower+installation+guide
- https://static.usrfiles.com/ugd/b8c837_a9dbb04f51b248458d402b03cdef864a.pdf
- https://static.usrfiles.com/ugd/b8c837_676b10df6a5a49e8b9d0f0192a7b4ade.pdf
- https://static.usrfiles.com/ugd/63022f_609363e0586a4a41b5f4b7971dbc2908.pdf
- https://static.usrfiles.com/ugd/f55bec_3fb5ab5913574e17b2426c934a9febab.pdf
- https://static.usrfiles.com/ugd/5d2cf3_990194591c7b45cb8683d7b922c08551.pdf
- https://static.usrfiles.com/ugd/a86d68_f8f65f5fc6d94e16a3e3c167237ab435.pdf
- https://static.usrfiles.com/ugd/97493d_08746e1282ed4be98d7ca2136327f9a8.pdf
- https://cdn.shopify.com/s/files/1/0432/6142/7867/files/55296424489.pdf
- https://cdn.shopify.com/s/files/1/0436/5575/7977/files/xapoxetidibesakovurewa.pdf
- https://cdn.shopify.com/s/files/1/0429/7952/4759/files/wordpress_comments_templates.pdf
- https://cdn.shopify.com/s/files/1/0432/3957/1616/files/97930493222.pdf
- https://cdn.shopify.com/s/files/1/0430/4053/8773/files/vugejidevipemewimet.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005c2e.bin` `6b5b0f72a8967e12edaa2206e6154da51387538c975e436be7ff42c3cc87d398`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C2E	5228 bytes
`font_01_sfnt_off00006de8.bin` `27727ce9bbd70609396b115072df8f16e1964dd16c407f62d2709a5488b17d42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DE8	9616 bytes
`font_02_sfnt_off00008f0b.bin` `57b97e2d46120675ccaf96b3829404daacb4f14972e2e90d1e9640c2b3f6d4e4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F0B	17188 bytes

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