PDF malware analysis — malicious · 4e9a10422fe5e9b9

MALICIOUS

PDF

39.9 KB Created: 2020-08-12 02:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 62ca6198af2396b91c257bc34ef749e4 SHA-1: 766b3a9dd8dddc3c2576aa0dd7f370de21e8898d SHA-256: 4e9a10422fe5e9b903cc895b7d2f8e8d72824cf6fcf7ac90d2e3a7f50a0da8d2

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a redirector link, indicating a social engineering lure. The document body, though heavily obfuscated, contains text related to 'pharmacy books free download pdf' and the malicious URL. The primary malicious URL is https://ttraff.ru/pify?keyword=pharmacy+books+free+download+pdf, which likely leads to further malicious content or malware.

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.
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.ru/pify?keyword=pharmacy+books+free+download+pdf
- http://fuvinobim.balboabayvbc.com/uploads/1/3/1/4/131482975/vefaxowake.pdf
- http://wovekilix.miguelcravo.com/uploads/1/3/2/6/132682076/ded0089493fa3.pdf
- http://files.gailyountsartwork.com/uploads/1/3/0/9/130969211/0c0439a12a6.pdf
- http://tekodo.linmog.co.uk/uploads/1/3/2/7/132740494/1695717.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ranugebiwuzejivuzuf.pdf
- https://cdn.shopify.com/s/files/1/0428/3318/2886/files/98666579810.pdf
- https://cdn.shopify.com/s/files/1/0430/1042/4985/files/6077296048.pdf
- https://cdn.shopify.com/s/files/1/0438/3752/2080/files/22664873687.pdf
- https://cdn.shopify.com/s/files/1/0427/8131/1132/files/3630356261.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84005007378.pdf
- https://cdn.shopify.com/s/files/1/0432/3809/7051/files/alcestis_bangla.pdf
- https://cdn.shopify.com/s/files/1/0432/2613/6731/files/lozifopazokob.pdf
- https://cdn.shopify.com/s/files/1/0446/9473/2953/files/napologagegot.pdf
- https://cdn.shopify.com/s/files/1/0435/5247/3252/files/46159905827.pdf
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/british_vocabulary_list_for_ielts.pdf
- https://cdn.shopify.com/s/files/1/0428/9223/0823/files/windows_10_home_keygen.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_off00005b91.bin` `2ef1ed7adbc88e3a6db22dbfee388ee5c4b55f29c7fcaebf09e18ee6180551ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B91	5796 bytes
`font_01_sfnt_off00006f33.bin` `c82f0d300cbf40c52c312d7320a3dbe879fa21b97f13ef2f05a47bb7ad74de40`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F33	10432 bytes

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