PDF malware analysis — malicious · 1ae1ffa43d6fde74

MALICIOUS

PDF

59.7 KB Created: 2020-08-06 07:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 81805271aff2118a16a23076a75885e4 SHA-1: 526a07ca8c453df978456b523238376b061f6916 SHA-256: 1ae1ffa43d6fde749572ed31e0ce06b5fefa6482d06d7fae3681338fa0061333

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=accounting+ratios+questions+pdf'. This indicates a social engineering attempt to direct the user to a potentially harmful site. The file also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an effort to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=accounting+ratios+questions+pdf
- http://files.dyuddesign.com/uploads/1/3/0/8/130874566/pitiwebofirumi-vepujavojukex-fafoziwumaf.pdf
- http://files.midwifeyork.com/uploads/1/3/2/8/132814096/xodoxevi-mugiwibi-sekuvisofoke-bozubejemiren.pdf
- http://files.naplesbesthairsalon.com/uploads/1/3/1/0/131070722/acca36b19.pdf
- https://cdn.shopify.com/s/files/1/0434/7746/7288/files/islamic_girl_baby_names_with_meaning_in_tamil_pdf_download.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4939/files/kojilerafifafokuvipijebor.pdf
- https://cdn.shopify.com/s/files/1/0433/0081/4998/files/98319154840.pdf
- https://cdn.shopify.com/s/files/1/0430/8421/8532/files/tulidarapiliwexizuzefavom.pdf
- https://cdn.shopify.com/s/files/1/0428/6844/1254/files/91898020955.pdf
- https://cdn.shopify.com/s/files/1/0434/6898/0377/files/80807466299.pdf
- https://cdn.shopify.com/s/files/1/0431/1564/3041/files/lafewosavogo.pdf
- https://cdn.shopify.com/s/files/1/0435/4467/4455/files/zarexanewiro.pdf
- https://cdn.shopify.com/s/files/1/0434/2585/7703/files/nba_2k13_cheats_ps3.pdf
- https://cdn.shopify.com/s/files/1/0428/8036/8796/files/budosedizikanimemeni.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000886c.bin` `d5cdbe8612bdc9e3383df252ee42bb8209e4d4679767592a400c8556bf329ca0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x886C	5288 bytes
`font_01_sfnt_off00009a68.bin` `30cba5548c1b780c7725fc820e64819ae5dd6c438cd3291a39e88b12840f4c2b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A68	10408 bytes
`font_02_sfnt_off0000be04.bin` `e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBE04	16164 bytes
`font_03_sfnt_off0000d31b.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD31B	4324 bytes

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