Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e0fa7af7d2f5e5…

MALICIOUS

PDF

66.2 KB Created: 2020-08-13 03:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02e0a3e97eeb0bd80bf64c8ac0f7a84c SHA-1: 3ac8fde1336536caf1ea25bca7f1a5f973ee3a7a SHA-256: d1e0fa7af7d2f5e519fa1372b022139483a3e827cfa8a98697a131c0d533fe9b
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains multiple embedded links, including one identified as a malicious redirector. The presence of a 'download button' heuristic and the redirector link suggest a phishing or malware delivery attempt. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern. No scripts were extracted, limiting the analysis of further stages.

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.com/wb?keyword=motion%20in%20a%20straight%20line%20class%2011%20pdf
    • http://repimi.microhydroassociation.org/uploads/1/3/1/4/131406153/8008553.pdf
    • http://files.prescottprintco.com/uploads/1/3/1/3/131380337/3454282.pdf
    • http://files.heartstonehavenmassage.com/uploads/1/3/1/6/131606060/penuk.pdf
    • http://files.aspleyclassesforseniors.com/uploads/1/3/1/0/131070786/265dcbdec677c85.pdf
    • https://cdn.shopify.com/s/files/1/0432/9763/6512/files/58048276443.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/baxof.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6165/files/makemkv_registration_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/d_a_carson_for_the_love_of_god.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/79311435375.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/12882663206.pdf
    • https://cdn.shopify.com/s/files/1/0434/4161/9100/files/fapukejegadom.pdf
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/zejip.pdf
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/above_top_secret_timothy_good.pdf
    • https://cdn.shopify.com/s/files/1/0432/1384/8733/files/63496776440.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6324/files/kiposevowanibido.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_off0000a9d7.bin
795df3c6bf6d24239e543480d56b3e4aebb98dfa95a2d874efb1fcb48d0b3b14
pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D7 5472 bytes
font_01_sfnt_off0000bc77.bin
94fba01cecb8157d7c3b87bd318c2aaecf4fa952a3e9c8042fc85f2c82fc7298
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC77 12892 bytes
font_02_sfnt_off0000e5e1.bin
53505b0cd17661629982ff9e9bae2fda8cdadd64f3c022ed70cd99b5e50c7be1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E1 16248 bytes