Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f5d9f39efe292a…

MALICIOUS

PDF

51.2 KB Created: 2020-08-13 22:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72f7ccbe9b7dcec36ee93014fcd6b64a SHA-1: a142035753de73008887f52d4695de98c57793ab SHA-256: f0f5d9f39efe292a14059c703175e1b7e432ea39e1c0309161867b356bce09da
128 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 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, one of which is 'camera_scanner_creator_apk.pdf'. The document body also contains the malicious URL and a call-to-action phrase, suggesting a lure to download or visit a malicious site.

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.ru/pify?keyword=current+resuscitation+council%2528+uk+guidelines
    • http://zosebo.nicolaulrichs.com/uploads/1/3/1/0/131070420/nekovekofovij.pdf
    • http://files.makerseclectic.com/uploads/1/3/1/3/131380445/c31e5.pdf
    • http://files.artccosgrove.com/uploads/1/3/1/4/131483153/poser_popunigolir_wuwififip_bebibujo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0862/files/camera_scanner_creator_apk.pdf
    • https://cdn.shopify.com/s/files/1/0449/5199/4536/files/learn_storyboarding.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/bavug.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/buzunogibivojojedubu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5035/9194/files/22548881626.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/59403306023.pdf
    • https://cdn.shopify.com/s/files/1/0438/2870/7485/files/axis_bank_fd_interest_rates.pdf
    • https://cdn.shopify.com/s/files/1/0430/4620/7637/files/giwezuzowate.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/92869896400.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/69714672475.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/pigigajugewikafimenevan.pdf
    • https://cdn.shopify.com/s/files/1/0427/8570/2054/files/busexutefelotawe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4103/8229/files/pumajexewozesuji.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_off00007ab3.bin
67122afd015af6e097880e8b0a819d7e33639b3c2c3f32ca6ce5d621962e4a81
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB3 5156 bytes
font_01_sfnt_off00008c51.bin
574642e3b5fd2dd50cf28dd410bf0b7daa9f68241dd7f93f9d30dd150df32e97
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C51 11212 bytes
font_02_sfnt_off0000b189.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xB189 4324 bytes