PDF malware analysis — malicious · 4400687f453032e9

MALICIOUS

PDF

40.8 KB Created: 2020-09-02 09:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c9522537da2aa7e718b3bec98a604825 SHA-1: 1a7336093dc2892f46ee49584d1693ea37845d72 SHA-256: 4400687f453032e95ced2dc82bcade9314324c16772219d1410fe27f4cab25fb

160 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure for Google Authenticator setup. This indicates a credential phishing attempt. The document body, though heavily obfuscated, contains the same URL and text related to 'Google authenticator for windows desktop', reinforcing the phishing lure. The presence of numerous other PDF links, while mostly benign, contributes to a link farm pattern, potentially for SEO manipulation to improve the visibility of the malicious lure.

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.com/wix?keyword=google+authenticator+for+windows+desktop
- https://static.usrfiles.com/ugd/b8c837_20bbe3f36a484a43a8c1ce7aeb723816.pdf
- https://static.usrfiles.com/ugd/74e9cf_c456c7f0165647c8aa92cc02dca86013.pdf
- https://static.usrfiles.com/ugd/b8c837_685805a2e6f94bc3a55f425cf588e642.pdf
- https://static.usrfiles.com/ugd/9c0842_0077e4fc2ae840a69972cf7f934b2bae.pdf
- https://cdn.shopify.com/s/files/1/0433/0881/0398/files/dewurusudiditet.pdf
- https://cdn.shopify.com/s/files/1/0432/0329/7437/files/tufapiroboponagipefafofe.pdf
- https://cdn.shopify.com/s/files/1/0430/3477/1610/files/bearing_types_and_uses.pdf
- https://cdn.shopify.com/s/files/1/0433/1565/8920/files/vajotowesutemodafuvafoji.pdf
- https://cdn.shopify.com/s/files/1/0466/7142/9797/files/44551550930.pdf
- https://cdn.shopify.com/s/files/1/0437/4154/4600/files/xuzus.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/99505333384.pdf
- https://cdn.shopify.com/s/files/1/0433/7539/4977/files/11378888730.pdf
- https://cdn.shopify.com/s/files/1/0438/9027/8568/files/budget_spreadsheet_apple.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_off00006052.bin` `4df79219d74d134fa144e9bad864300a21069ffb4e6e06fb1039bfb84d2bb8fc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6052	5604 bytes
`font_01_sfnt_off00007378.bin` `e43aa01a43242aa91df4be7e2bd32a5378555fa23812eb5fe9c83d41ca712c8b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7378	10204 bytes

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