Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9dffe59da267072…

MALICIOUS

PDF

85.0 KB Created: 2020-08-24 11:11:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfc906fab5c761e44c81cdd52fa94603 SHA-1: 1e720dee6dccdaa0471b679a13581a4e7b54b5e8 SHA-256: d9dffe59da2670727c50433535d5f4ae1d2e50bf5e4dc8ab992f9b8fd290bda4
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external websites, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure, and another flagged the PDF as a link farm. The document body also contains a URL that appears to be the primary lure.

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=aligarh+full+movie++in+720p
    • http://files.bobsportsmemorabilia.com/uploads/1/3/1/0/131070918/lewujosod_keximubowu_xapusogaxag_rasife.pdf
    • http://xumivelob.cheerycards.com/uploads/1/3/1/4/131483152/26ee7454e2ed4.pdf
    • http://files.jdwgardens.com/uploads/1/3/0/8/130814588/3529816.pdf
    • http://ripuxad.lancemosherbooks.com/uploads/1/3/0/7/130775795/lidumalad.pdf
    • http://files.tobeman.net/uploads/1/3/0/8/130813887/35ff2d7.pdf
    • https://cdn.shopify.com/s/files/1/0458/2368/8867/files/shazam_for_windows_7_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/7723/8945/files/carrinho_de_bebe_cosco_nexus_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/15323016447.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/fojijadoxoropin.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/96571357860.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/grow_rpg_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/lojefizemumoxoduzuralexux.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/rpg_maker_xp_para_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5719/files/suxuk.pdf
    • https://cdn.shopify.com/s/files/1/0464/9022/2744/files/ditanusedanela.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e565.bin
a82526623dddcad496c92dd9fe7e2013d4de9b17122fe26d6652383d067ccae4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE565 2856 bytes
font_01_sfnt_off0000ef7f.bin
23ce21674f2cbddb817f6b222001066dc430a1b595a581867b139b7ec8ab1163
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7F 5540 bytes
font_02_sfnt_off00010247.bin
2a36739eb199acaf230b150c6101809d751af7f5708e444bd3b7ee363fb40037
pdf-font-stream PDF embedded font (sfnt) at offset 0x10247 14796 bytes
font_03_sfnt_off000130c3.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6
pdf-font-stream PDF embedded font (sfnt) at offset 0x130C3 16164 bytes