Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9ccb1d69d84d03…

MALICIOUS

PDF

36.5 KB Created: 2020-08-19 04:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 316da89fc76ab45b31d7ec71e351ce57 SHA-1: 129376a8f419a30cd240456d1c7dc934bfd039ec SHA-256: 4e9ccb1d69d84d03bda41462a9ffcc6abe18330fe95e1fe2ea961330edceb8c1
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though corrupted, contains text related to a dishwasher manual and a malicious URL, reinforcing the lure. The primary malicious URL is https://ttraff.ru/pify?keyword=kelvinator+dishwasher+kd14ss+manual, which likely leads to further malicious content. No scripts were extracted from this sample.

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=kelvinator+dishwasher+kd14ss+manual
    • http://files.monticellosearch.com/uploads/1/3/0/8/130814043/gufodesiki.pdf
    • http://files.recapinc.net/uploads/1/3/0/8/130814926/be30230643b19f.pdf
    • http://files.mattiafagnonionlus.com/uploads/1/3/2/6/132682134/midefufa_lipejiv_bozipiwenum_pivijakez.pdf
    • http://files.boxersvonamadeus.com/uploads/1/3/1/1/131164185/8622441.pdf
    • http://files.cowtowncountryclub.com/uploads/1/3/1/6/131606397/vaxolawogulamalifem.pdf
    • https://cdn.shopify.com/s/files/1/0439/1141/3915/files/jepoxavavanime.pdf
    • https://cdn.shopify.com/s/files/1/0433/6104/2591/files/7381942467.pdf
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/borrowing_words_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/97755891062.pdf
    • https://cdn.shopify.com/s/files/1/0432/7306/0520/files/jafino.pdf
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/cms-_xch._33across._com.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/79788273560.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/81487828567.pdf
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/15266779866.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/turevewoz.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_off000050a5.bin
56b44234fc0bc1b907b897802e62a49f9fb137361c9fb6f7bea34b147b850702
pdf-font-stream PDF embedded font (sfnt) at offset 0x50A5 5392 bytes
font_01_sfnt_off000062e9.bin
459f25651f47ea027660bee35c7d9b852df6ce23671336dc0130a6b7b686a5a0
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E9 9980 bytes