Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0e901261e9d523…

MALICIOUS

PDF

41.1 KB Created: 2020-08-09 04:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44515968f06ccfe174a7972e86700f7c SHA-1: 46b6674fd8006cf4290af248c8fc3b99ccb3033b SHA-256: de0e901261e9d5233356c6d03837af2c2ed760f9281cf6f67bc33f2ed2f12c9e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cmis+and+apache+chemistry+in+action+pdf+free+download'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, many of which are hosted on Shopify but also include several other unknown domains. No scripts were extracted from this sample.

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=cmis+and+apache+chemistry+in+action+pdf+free+download
    • http://susuxo.afmsupplements.com/uploads/1/3/1/3/131380485/nojum.pdf
    • http://vewiban.successfulbreastfeeding.org/uploads/1/3/1/4/131438641/6d7014f2.pdf
    • http://files.labellavitaitalia.com/uploads/1/3/0/7/130739704/lafapis.pdf
    • http://gevilogo.kaiyuwang.com/uploads/1/3/1/3/131383483/kifod-nobododi.pdf
    • http://files.jasminkwan.com/uploads/1/3/1/4/131453248/kubomerebamel.pdf
    • http://gevilogo.kaiyuwang.com/upl
    • https://cdn.shopify.com/s/files/1/0429/7549/4300/files/brandt_daroff_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/9918/4551/files/medical_law_ethics_and_bioethics.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/76452714441.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/wojasi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/85548202705.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1415/files/ginegivotejujabete.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/27987685889.pdf
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/zakasumeta.pdf
    • https://cdn.shopify.com/s/files/1/0428/6811/3574/files/34106890369.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2125/files/terapi_anemia_defisiensi_besi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9564/5589/files/77644584470.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_off00006146.bin
5fa0978e0dcc5bfc27bc99aa14deb2687da59382f80da927680dc7c168af1cfd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6146 5492 bytes
font_01_sfnt_off000073dc.bin
8ada0ca38deab06a6ceb6d5ce8e24aab0fcd9df99f5851764a227c278c8d4603
pdf-font-stream PDF embedded font (sfnt) at offset 0x73DC 10220 bytes