Malicious PDF — malware analysis report

Static analysis result for SHA-256 3195368f2bc1679d…

MALICIOUS

PDF

44.4 KB Created: 2020-09-21 11:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03b180609ebbde1d1d007bc4420b474a SHA-1: 9f50b8eee1cd6a64330f010e3164b4b15efab280 SHA-256: 3195368f2bc1679d79698eb0bfffcc2f00bbabf219e71aea39a701868ea85cea
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=city+of+glass+pdf+google+drive+english'. This URL is presented in a context suggesting a lure for users searching for specific content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on benign platforms but likely serve to obscure the malicious destination. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=city+of+glass+pdf+google+drive+english
    • http://xikim.hibajaroudi.com/uploads/1/3/0/9/130969916/suxijurazojus.pdf
    • http://files.magicrepair.net/uploads/1/3/1/6/131606727/rarop.pdf
    • http://teloxato.esta-ny.com/uploads/1/3/2/8/132814239/7084914.pdf
    • http://numenu.gowildworkshops.org/uploads/1/3/1/4/131406258/2301953.pdf
    • http://files.therenegadeorganization.com/uploads/1/3/0/7/130776120/zifura.pdf
    • http://nunip.robheaslip.com/uploads/1/3/0/7/130776445/4629885.pdf
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/wii_iso_direct_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/57550482545.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3357/files/xegilew.pdf
    • https://0eb21a8d-38f7-40d1-af7a-bf53ed4482d7.filesusr.com/ugd/4c7633_9cdb9fd49e134769b921159017eacfe8.pdf?index=true
    • https://2357f917-a743-45aa-a42f-c8d21cb14cbb.filesusr.com/ugd/11276f_a2cbebd95a5d4abe89546917aabd1628.pdf?index=true
    • https://8c0b61e7-7b1a-4d0c-82b2-2f01296567b6.filesusr.com/ugd/a2ebd8_ac770d6df3984fd5895735edf598e671.pdf?index=true
    • https://720442c6-67ed-4837-9242-b553a98d69c0.filesusr.com/ugd/1e533a_f0d35de9d974414294c903aeaa800515.pdf?index=true
    • http://www.flickr.com/photos/tedconference/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000606d.bin
7ef0e62aa95a4c3c7a5ef07ac0694fe82a776c9b248dc421704c9b5ac6ae03c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x606D 5276 bytes
font_01_sfnt_off00007263.bin
7bba720a9401b9b80d419a8f35bde13adfa1767cdd8b1074bd19cb3e93858ade
pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 10680 bytes
font_02_sfnt_off000096ff.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x96FF 4324 bytes