Malicious PDF — malware analysis report

Static analysis result for SHA-256 dada59fffba95d47…

MALICIOUS

PDF

43.0 KB Created: 2020-08-23 05:47:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60c03a632a79e5ea8320110500dcad40 SHA-1: 5dc573dc25c315a5d2afe809d3f9bb12630a576d SHA-256: dada59fffba95d4791dbbe04a04e926fd7447f164b63dc3b4b4b5e011a803644
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as an 'Android update for huawei p20 lite'. This link, 'https://ttraff.ru/pify?keyword=android+update+for+huawei+p20+lite', leads to known malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0450/0871/5940/files/basic_concepts_of_islamic_economic_system.pdf' being the most prominent. The presence of a callback phishing lure further suggests a social engineering attempt.

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.ru/pify?keyword=android+update+for+huawei+p20+lite
    • http://files.gabriellemyers.com/uploads/1/3/1/0/131069950/4594346.pdf
    • http://files.socalpengathering.com/uploads/1/3/0/7/130739731/ea7c750f92.pdf
    • http://files.andairewenatchee.com/uploads/1/3/0/7/130740571/fufikaxuliga-rekedo-bigadutukomude.pdf
    • https://cdn.shopify.com/s/files/1/0450/0871/5940/files/basic_concepts_of_islamic_economic_system.pdf
    • https://cdn.shopify.com/s/files/1/0435/9133/6099/files/13106906166.pdf
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/petition_for_adoption_form_florida.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4049/files/34420730546.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/83768404562.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/84492544148.pdf
    • https://cdn.shopify.com/s/files/1/0448/0725/8278/files/minority_scholarship_2020_form_download.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_off00005c51.bin
27bbfc1d3821d2ebaa1ec43d835fc828bbc4743f28254d8516597008737d24f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C51 5188 bytes
font_01_sfnt_off00006df9.bin
6e99ce3701db8a23f294b6743a2ae57b7d7b63f7af2f00e7749b9e1f391aa5c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF9 10408 bytes
font_02_sfnt_off00009180.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9180 4324 bytes

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