Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2500fb7a7f90490…

MALICIOUS

PDF

47.2 KB Created: 2020-08-17 05:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8477fced4a002f94f12e49f529f3e767 SHA-1: c5098b678bc6f1819fc30a815129bdb673a76261 SHA-256: d2500fb7a7f904902b7c54e9293ea10f7c9723f9635de751e06aa0447a59891e
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the text 'branch manager application format' and the malicious URL, suggesting a lure. The presence of numerous PDF links, many hosted on Shopify, points to a link farm strategy to obscure the malicious destination. The primary malicious URL is https://ttraff.com/pify?keyword=branch+manager+application+format, which is a known malicious redirector.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=branch+manager+application+format
    • http://zivegafip.longedgepress.com/uploads/1/3/0/7/130776021/732e5feb1.pdf
    • http://legedore.angkorvetclinic.com/uploads/1/3/0/7/130776483/6ee3cbc.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/66068872470.pdf
    • https://cdn.shopify.com/s/files/1/0435/9585/8088/files/27010366704.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/bajamorotez.pdf
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/32238448252.pdf
    • https://cdn.shopify.com/s/files/1/0429/5622/6716/files/car_repair_manuals_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/56096055103.pdf
    • https://cdn.shopify.com/s/files/1/0448/1197/6855/files/steven_universe_season_5_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/business_proposal_keynote_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/1999_toyota_tacoma_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/69174803664.pdf
    • https://cdn.shopify.com/s/files/1/0433/9741/5077/files/hidden_camera_without_icon_app.pdf
    • https://cdn.shopify.com/s/files/1/0454/2182/2120/files/treatment_of_diarrhea_in_child.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_off000079cc.bin
20602fcd18315b8f2d6cd0988d8c8b7c2bd9e6722667d1e9f0c0b0b21304ca3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x79CC 5300 bytes
font_01_sfnt_off00008b9e.bin
21281a08ae28edb377e18d106a127eecf351310710e04ed2754f6c8a8e37b7b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9E 10764 bytes