PDF malware analysis — malicious · f8a6e9de43f6b55a

MALICIOUS

PDF

54.4 KB Created: 2020-08-12 11:53:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5f84f7f93180b273efdbaa38ac30973b SHA-1: 6ffcf4fddc1c60c713c4288b6069968aab3752f5 SHA-256: f8a6e9de43f6b55aaed02936844e98afa650636a835a64c8ba6babd056a75ad6

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic firing indicates that the document links to known malicious redirector infrastructure at 'ttraff.cc'. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. 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.cc/wb?keyword=espressor%20manual%20krups%20calvi%20xp3440
- http://jorur.marcsoutdoorfurniture.com/uploads/1/3/2/8/132815028/3923113.pdf
- http://gulobof.marinpersonalshopper.com/uploads/1/3/2/3/132303027/9171540.pdf
- http://kojuwu.buildingspecscorp.com/uploads/1/3/0/8/130814328/1af91d77cc.pdf
- http://files.gmckillington.org/uploads/1/3/1/4/131453902/3573926.pdf
- https://cdn.shopify.com/s/files/1/0434/7917/1222/files/causes_of_peptic_ulcer.pdf
- https://cdn.shopify.com/s/files/1/0434/3257/5132/files/xegidusuzesomoxep.pdf
- https://cdn.shopify.com/s/files/1/0435/1783/7467/files/vokubagigiwikexajamef.pdf
- https://cdn.shopify.com/s/files/1/0427/7967/2735/files/sexor.pdf
- https://cdn.shopify.com/s/files/1/0433/9289/3093/files/91426765553.pdf
- https://cdn.shopify.com/s/files/1/0429/5848/7703/files/best_app_annotate_ipad.pdf
- https://cdn.shopify.com/s/files/1/0429/4616/6943/files/surutepowonuburunefeni.pdf
- https://cdn.shopify.com/s/files/1/0445/9456/1188/files/balochistan_textbook_board_quetta_books.pdf
- https://cdn.shopify.com/s/files/1/0430/5115/5618/files/jiwexesibo.pdf
- https://cdn.shopify.com/s/files/1/0428/2017/3983/files/bestiariusz_sowiaski._cz_pierwsza_i_druga.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_off0000760e.bin` `e0064eda5440dda2a2822197288bce9aa876360d17dacfca3bc0b0a946af7448`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x760E	5620 bytes
`font_01_sfnt_off0000891b.bin` `daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x891B	1800 bytes
`font_02_sfnt_off000091a9.bin` `cf464eb11920b7971e6c728267f64123158cb27e64b816c8fd169853f3743a59`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91A9	10420 bytes
`font_03_sfnt_off0000b581.bin` `8a76440899557fe8e3d58d35c1160fa3b53ffd0da5388da1bb89fb7250de6a45`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB581	16648 bytes

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