PDF malware analysis — malicious · d35e01ec7bc7c063

MALICIOUS

PDF

42.4 KB Created: 2020-08-09 11:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5379b421199a411b604851cb2bfc4230 SHA-1: 1948904c45df9c89508fb806e163eb76d2c8fdf8 SHA-256: d35e01ec7bc7c063d26d57f2a94ce525a4fdd2b52131a6174987d7a280e5ba5b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to a redirector service known for malicious activity. The primary redirector URL is https://ttraff.cc/pify?keyword=concrete+mathematics+a+foundation+for+computer+science+solutions+pdf. This indicates a link farm or SEO poisoning attack designed to lure users to malicious content. No scripts were extracted, but the presence of numerous links suggests a delivery mechanism for further malicious payloads or phishing attempts.

Heuristics 3

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.
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.cc/pify?keyword=concrete+mathematics+a+foundation+for+computer+science+solutions+pdf
- http://files.thedoghousepetservices.com/uploads/1/3/0/8/130873895/257a01.pdf
- http://files.headinghomerescue.org/uploads/1/3/1/3/131381078/gawol.pdf
- http://files.lagunaniguelcarpetcleaning.net/uploads/1/3/2/3/132303382/b9fe58d9a.pdf
- http://files.hollandsportfishing.com/uploads/1/3/1/3/131379117/xedid_japanebune_rukuxipeve_voxim.pdf
- http://muribenav.winklashes.ca/uploads/1/3/1/6/131636612/telubamakaxorifef.pdf
- https://cdn.shopify.com/s/files/1/0429/1156/3932/files/pexipo.pdf
- https://cdn.shopify.com/s/files/1/0433/0248/6180/files/39698829327.pdf
- https://cdn.shopify.com/s/files/1/0430/8054/8503/files/busulek.pdf
- https://cdn.shopify.com/s/files/1/0427/6387/8566/files/fugexeta.pdf
- https://cdn.shopify.com/s/files/1/0433/4492/0734/files/54365458823.pdf
- https://cdn.shopify.com/s/files/1/0431/5830/6965/files/lufip.pdf
- https://cdn.shopify.com/s/files/1/0431/1898/5370/files/php_minify_html.pdf
- https://cdn.shopify.com/s/files/1/0429/8748/7395/files/99880317059.pdf
- https://cdn.shopify.com/s/files/1/0446/4757/9811/files/vert_shock_week_4.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bekikelazipilexujewa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30072581460.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_off000067d6.bin` `059b37beb7998a3a810bfef2f662140c151f7eb39eaf4264dd2bd8e4939b5954`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67D6	5300 bytes
`font_01_sfnt_off000079a8.bin` `f6c52198b5e23724327621b2dabafd45007d12fb78e1bd6597bed34dfa60bb33`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79A8	9960 bytes

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