Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1dcbbc37d63141…

MALICIOUS

PDF

47.5 KB Created: 2020-08-21 12:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 559c10229aa1668401a5f77f351eac6c SHA-1: c11ae01caf8a5a14badd13c1343a2a596ef1e6be SHA-256: 5a1dcbbc37d631415c12948f7e28a715f4e78d60a3eeb11bee9bb523200b08cb
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to this redirector. The primary purpose appears to be directing users to malicious infrastructure, likely for further exploitation or phishing.

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=girl+guides+plastic+promise
    • http://files.charliehempseed.com/uploads/1/3/2/8/132814303/46be4199c12.pdf
    • http://files.bgreenyoga.com/uploads/1/3/1/3/131383838/1161802.pdf
    • http://kevupidex.dermamedic.net/uploads/1/3/0/7/130775164/395056.pdf
    • https://cdn.shopify.com/s/files/1/0432/3871/9648/files/faruzebiwizatowofus.pdf
    • https://cdn.shopify.com/s/files/1/0431/8137/5648/files/physics_james_walker.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/bewuxidupuvamebitaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6030/5825/files/55536930825.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6224/files/runningman_ep_280.pdf
    • https://cdn.shopify.com/s/files/1/0433/8214/5182/files/live_football_tv_apk_for_windows.pdf
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/xuleworove.pdf
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/craftsman_gold_6._75_lawn_mower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/wibudazore.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/glory_and_praise_to_our_god_chords.pdf
    • https://cdn.shopify.com/s/files/1/0431/0617/3077/files/julian_kal_seinfeld.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d7f.bin
28130cafcc454609b5c81a2f90c702f1fa9ff85181f7454179a1fddfde8c289d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7F 5200 bytes
font_01_sfnt_off00007f31.bin
e1210f9271a80029cb246d54a7b5655fd6129320da1bee0a6510a5b58f8d314a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F31 10524 bytes
font_02_sfnt_off0000a30d.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA30D 4324 bytes

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