Malicious PDF — malware analysis report

Static analysis result for SHA-256 edd5eaf5d0714414…

MALICIOUS

PDF

58.6 KB Created: 2020-08-21 21:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79a68a3af69d59c5cae65cf45f4ebf84 SHA-1: a6fe96217be2130cca29c84d6306b82f596dd0c1 SHA-256: edd5eaf5d071441499dd466035b202a6b01b5d0cdecec1be7f967b4f6af9a8d4
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.cc/pify?keyword=saira+narasimha+reddy+songs++sensongs', is flagged as a malicious redirector. The document body is heavily obfuscated but contains references to URLs, suggesting a lure to external content. The primary attack pattern appears to be SEO spam or a phishing campaign leveraging a large number of links.

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=saira+narasimha+reddy+songs++sensongs
    • http://puzege.phisigmapidavis.com/uploads/1/3/1/3/131379730/sujipijelenewurex.pdf
    • http://files.usceeri.com/uploads/1/3/0/8/130874218/jabugonu.pdf
    • http://jafit.authortaradawn.com/uploads/1/3/0/7/130776394/a22285c1.pdf
    • http://files.djaneecreations.com/uploads/1/3/0/7/130739835/xuzipiwabur.pdf
    • http://files.wardslandscaping.com/uploads/1/3/0/9/130969989/436dd712.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/favason.pdf
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/kixekuselijegonagonifo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6245/9544/files/nodit.pdf
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/speedtest._net_server_list.pdf
    • https://cdn.shopify.com/s/files/1/0437/7965/3789/files/kifenizatalenifujeju.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4822/files/39347761854.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/kabukulofumu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0222/3013/files/botetufinubi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/zagoparofapubulisoxogik.pdf
    • https://cdn.shopify.com/s/files/1/0435/5850/2563/files/murray_snowblower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0456/5198/4551/files/your_song_ellie_goulding_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/26037391758.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/assistant_food_and_beverage_manager_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0447/1911/2345/files/round_above_ground_pool_deck_plans.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_off00008cdf.bin
c17f6fc5acd25dadc46130676770cd6b2bdeefadb71730e696dea5026de18b2c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDF 5120 bytes
font_01_sfnt_off00009dff.bin
54c59a2a2d1ab22741ad080f4f402fea8c933208344133ea0e9e79410a7aabe3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DFF 15312 bytes
font_02_sfnt_off0000cd4b.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4B 4324 bytes