PDF malware analysis — malicious · 1ef5c5fbda010fed

MALICIOUS

PDF

45.3 KB Created: 2020-09-05 02:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e4b44e6f90af7b652b644e4bfc78cba8 SHA-1: 595e292a198c90f7d6e75d5b979a9281652af1c7 SHA-256: 1ef5c5fbda010fedbfbe3502db2990d2617afac17dc69b51dcb479d9276493cd

150 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 'https://ttraff.club/wix?keyword=reply+thank+you+email+template'. Additionally, it features a link farm with numerous PDFs hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content. The presence of a callback lure and a download button further supports a malicious intent, likely to phish for information or deliver a secondary payload.

Heuristics 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=reply+thank+you+email+template
- https://cdn.shopify.com/s/files/1/0432/8567/6192/files/zosemir.pdf
- https://cdn.shopify.com/s/files/1/0462/6762/9730/files/aplikasi_zarchiver_pro_terbaru.pdf
- https://cdn.shopify.com/s/files/1/0432/4841/8973/files/20707160555.pdf
- https://cdn.shopify.com/s/files/1/0438/5076/0357/files/coreldraw_2017_getintopc.pdf
- https://cdn.shopify.com/s/files/1/0428/0621/4819/files/65766630878.pdf
- https://cdn.shopify.com/s/files/1/0432/5467/7662/files/nusunoripa.pdf
- https://cdn.shopify.com/s/files/1/0427/3248/6823/files/83406444907.pdf
- https://static.usrfiles.com/ugd/162fe6_1c4f2c8f27d541ee9492c0794ce63b23.pdf
- https://static.usrfiles.com/ugd/b8c837_08eeb43d05254791a498f9333ada8f1e.pdf
- https://static.usrfiles.com/ugd/05301a_0b9fb8d4eda84ce8971e36c4f10d2a78.pdf
- https://cdn.shopify.com/s/files/1/0430/3749/1354/files/61533513815.pdf
- https://cdn.shopify.com/s/files/1/0431/9569/5266/files/zasor.pdf
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/47225455153.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_off000073fc.bin` `b4541655616d8e1fff5184abb5388eb117a86d0b684a0a06d07c7a81b8cf4290`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73FC	4956 bytes
`font_01_sfnt_off000084c1.bin` `abd674895cdccb99d0180ce1383ba68e71a1e8fe60a78e9533f7e08098ab612e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84C1	10500 bytes

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