Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ae7abca93a2c93…

MALICIOUS

PDF

42.3 KB Created: 2020-08-01 19:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6090347df6c5ee01eaea7a5267252fbe SHA-1: 5128076cc8e1c9dad56282a883db5241f8fce374 SHA-256: 80ae7abca93a2c93a8919aefa5ccd418768ee89452bc1712deb7318eb1462022
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link. This link, 'https://ttraff.ru/pify?keyword=gta+sas+psp', is designed to redirect users to potentially harmful content, disguised as a game download. The document body, though heavily obfuscated, also contains this URL and numerous other links pointing to Shopify domains, suggesting a link farm or distribution mechanism. The presence of a malicious redirector indicates an attempt to lure users into downloading malware or engaging in other malicious activities.

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=gta+sas+psp
    • http://files.curtisnewmanartist.com/uploads/1/3/1/0/131070393/weropatinukuf-zigawepuwele-deruwajivix.pdf
    • http://files.fromtheheartliving.com/uploads/1/3/1/4/131437061/jaselu.pdf
    • http://files.chrissysfantasyfaces.com/uploads/1/3/1/6/131637570/6da48e3.pdf
    • http://files.hirojack.com/uploads/1/3/0/7/130776166/dizub_xobopow_zezefugotida_mogakorevuwab.pdf
    • http://files.gordonptandwellness.com/uploads/1/3/2/6/132681783/4776515.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/40787679447.pdf
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/85027915766.pdf
    • https://cdn.shopify.com/s/files/1/0435/1927/9259/files/4798091974.pdf
    • https://cdn.shopify.com/s/files/1/0431/0925/3282/files/66671456943.pdf
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/84036088335.pdf
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/27128043135.pdf
    • https://cdn.shopify.com/s/files/1/0431/6119/0559/files/40425605562.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/pubedalabunisumixitulovil.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/95227013651.pdf
    • https://cdn.shopify.com/s/files/1/0431/0709/0589/files/tubufivoza.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9507/files/7369385165.pdf
    • https://cdn.shopify.com/s/files/1/0429/0887/6956/files/69788815417.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_off00006a85.bin
140631b65436d94f13bf7fd3d229ff0e31288007daba1e06da67dd83b4ddab8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A85 4716 bytes
font_01_sfnt_off00007aa5.bin
3c781e92a46f46bd8a71b357b075be0e21476d1f456622952822ee03f0ba01a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA5 9948 bytes