Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f58624ce87f0d3…

MALICIOUS

PDF

39.6 KB Created: 2020-08-05 03:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 621e7fb0f47e7546b53ead19cf416b95 SHA-1: a56c864085cd591cbe337cffe0acd9eefe9070f3 SHA-256: 41f58624ce87f0d3c36e17a86a7126509f1dc305ce95669003800f3353f68182
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One of these links, 'https://ttraff.ru/pify?keyword=bharti+axa+life+insurance+policy+download+pdf', is identified as a malicious redirector. The document body, though heavily corrupted, contains text related to insurance policy downloads, suggesting a phishing or scam lure. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/pify?keyword=bharti+axa+life+insurance+policy+download+pdf
    • http://files.liveinfullbloom.org/uploads/1/3/0/7/130776561/valewazewi.pdf
    • http://files.goplanshop.com/uploads/1/3/0/7/130775025/gesosewunafi_kipakowa_dofudanaxujafa_jaribewu.pdf
    • http://files.vermontmantel.com/uploads/1/3/1/6/131606569/2842226.pdf
    • http://files.sofiaspaparazzishop.com/uploads/1/3/0/9/130969751/rupaw_fomajuze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/xexaxodekoruwevasalin.pdf
    • https://cdn.shopify.com/s/files/1/0429/8909/3018/files/88509893772.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/gezumadokebixikufadum.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2317/files/vewigodabixedufexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/xamakuzokepukegevebep.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/kinefutilabupujoserim.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/18668087478.pdf
    • https://cdn.shopify.com/s/files/1/0434/7366/6213/files/26721531981.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/pilobufelawebujesi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/90087812874.pdf
    • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/pokemon_leaf_green_rom_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/4568937123.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_off00005b7a.bin
4a9dcfb580729e1a8cd077fb697dfe643a988deafcc32e65703fd3519219e36d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7A 5556 bytes
font_01_sfnt_off00006e7c.bin
8c2691d22d29a135c86f8fd243058646968dc8d3e09f1f6889a2346fdb8c9bcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7C 10164 bytes

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