Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbca79cfaa164f18…

MALICIOUS

PDF

48.3 KB Created: 2020-08-18 17:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 760eb216479de0bf8796b478a8b5a5ee SHA-1: 5f03c8981cc24a72636a1681ba24dafef88cba6a SHA-256: cbca79cfaa164f180f3f8ab20b68932fd9d70050e1853fbb3dd63325c6d69b5f
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'cheat sheet' and the malicious URL. This suggests a social engineering attack aiming to redirect users to malicious content.

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.ru/pify?keyword=the+attractive+man+free+conversation+cheat+sheet
    • http://rikesorim.porchlightapothecary.com/uploads/1/3/1/4/131454696/pexomumuluboruke.pdf
    • http://jituxidi.firstroboticsu.com/uploads/1/3/0/7/130738993/2264608.pdf
    • http://files.neenahpowerlifting.com/uploads/1/3/1/6/131636843/sibakerimam_lilopesamir.pdf
    • http://files.smarie94.co.uk/uploads/1/3/1/4/131437878/1725382.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/58380167999.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/sifufuzebekuvodo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9663/7597/files/88479630693.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/35691863016.pdf
    • https://cdn.shopify.com/s/files/1/0431/4287/3245/files/justmommies_pregnancy_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0433/5796/2405/files/nisemosi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3685/8773/files/lotus_notes_for_windows_8.pdf
    • https://cdn.shopify.com/s/files/1/0432/2718/5316/files/74355626479.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_off00007f0f.bin
cc1ae240a03e01cbb8ea66c406fbe9ff3601cdb71639b0c053ef919383aa9378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0F 5100 bytes
font_01_sfnt_off0000904b.bin
fe6ad3a6b536a99befd1107d550a89821afe0466d8ef51a1e9474e775bc722f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x904B 10588 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.