Malicious PDF — malware analysis report

Static analysis result for SHA-256 e86e7fa0894c5d48…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 01:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43b737088c4658f70e3f1151e151cb8e SHA-1: 3dc46e3fff4186946a9e488718fecf2c39ed58ee SHA-256: e86e7fa0894c5d480d5355617f7be0ad09f29c4e722e7c77d2990e61c5462217
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.cc/pify?keyword=proscan+tv+manual'. This link is presented within the document body, likely as a lure for users seeking a 'Proscan tv manual'. The file also contains a large number of external PDF links, characteristic of a link farm, with many pointing to benign Shopify domains but originating from a malicious redirector. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious intent appears to be directing users to the identified redirector.

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=proscan+tv+manual
    • http://files.lisawipperling.com/uploads/1/3/1/4/131482826/08f1bf2ecdef5f.pdf
    • http://files.bigfoot411.com/uploads/1/3/1/4/131482823/7732697.pdf
    • http://files.lcpbandboosters.org/uploads/1/3/1/4/131407547/mimevenuduxo-jogimodeti-pirug-xapubunetuvijab.pdf
    • https://cdn.shopify.com/s/files/1/0441/4016/7320/files/kefibizagonosoborejato.pdf
    • https://cdn.shopify.com/s/files/1/0428/5153/2963/files/70752237769.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/tebagidekeririxotoxudi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/37013942601.pdf
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/rerakefus.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/jinukivalodiloluzalizes.pdf
    • https://cdn.shopify.com/s/files/1/0440/8092/2789/files/wow_classic_tank_bis.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/zipitobanudinife.pdf
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/7503388234.pdf
    • https://cdn.shopify.com/s/files/1/0436/5202/2430/files/laxefugenojepitugapawu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/72212337059.pdf
    • https://cdn.shopify.com/s/files/1/0430/8867/4967/files/bevidomuditojimipijeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/5296/5792/files/gapujaziduzunuso.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.

FilenameKindSourceSize
font_00_sfnt_off00006375.bin
2428fbe0a97377483ead778ede9c1bb1340d31e99ef1f51bee44f07cbadb6af8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6375 5004 bytes
font_01_sfnt_off00007469.bin
dd622206f20ebc2b35de9fad49a7a2f1f84a544d6b6f09527cdc576edc7bb91c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7469 12864 bytes