Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c32059a1d172f6…

MALICIOUS

PDF

53.2 KB Created: 2020-08-02 00:42:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af12674607ac147788aa62ff4aa705d7 SHA-1: cb6e2dda2a0874eb2db579c7230035621d825ff6 SHA-256: 93c32059a1d172f6e48c9cc13a981b217dbcb9e6b1942d7e1135ea4fc0589c2a
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to a link farm hosted on cdn.shopify.com. One of these links, 'https://ttraff.cc/pify?keyword=vita+spas+manual', is identified as a malicious redirector. The presence of a 'download button' heuristic further suggests a social engineering tactic to trick users into clicking the malicious link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=vita+spas+manual', reinforcing its role as a lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=vita+spas+manual
    • http://files.rmhsperformingarts.com/uploads/1/3/1/4/131454699/5270202.pdf
    • http://files.centralparkdata.com/uploads/1/3/0/7/130738991/tawoxe.pdf
    • http://files.genevievemariedavis.com/uploads/1/3/1/8/131857580/vidarefodog.pdf
    • http://files.cincigreyhounds.org/uploads/1/3/0/7/130739615/jafajelu.pdf
    • http://files.rmhspe
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/kafaviwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/toxiromo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/54934901005.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/missouri_secretary_of_state_business_search.pdf
    • https://cdn.shopify.com/s/files/1/0437/1631/3242/files/zagorisefikaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59854739703.pdf
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/37555419267.pdf
    • https://cdn.shopify.com/s/files/1/0430/2667/7913/files/13734305837.pdf
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/91096855717.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21154843933.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/maxafugoset.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/vaboradikuteredudexagag.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/resebigo.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.

FilenameKindSourceSize
font_00_sfnt_off000070b3.bin
8963064d0fb62dfcd9ebb1e032032ffc1541f10de86394a75a749736da4cd707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70B3 4488 bytes
font_01_sfnt_off00007fc9.bin
70c536eac4d23178c113ce09408e1c159774ff9761608ab1407d40eb2494c4a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC9 10536 bytes
font_02_sfnt_off0000a416.bin
cb6e1cd8b1d5702b24774a361377a52ab1194c4f36e8401f9e0a6ac8a10cb6ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA416 16100 bytes
font_03_sfnt_off0000b8e0.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8E0 4324 bytes

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