Malicious PDF — malware analysis report

Static analysis result for SHA-256 222cf553d1af4dc3…

MALICIOUS

PDF

53.4 KB Created: 2020-08-22 04:55:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a8e59356aec091544ae4d734e121876 SHA-1: d08fb4b6691e965d8e656730c2c3f4cbef11b848 SHA-256: 222cf553d1af4dc30bfc0d99a6ca024efa9efc001a5c3e1ff81b3ef66ea71e55
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL and text suggesting a lure for a 'guide'. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further 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.com/pify?keyword=hitman+blood+money+house+of+cards+guide
    • http://files.rmkvapor.com/uploads/1/3/0/7/130739780/04b929b1.pdf
    • http://kejojogip.theskindistrict.com/uploads/1/3/1/8/131857334/3919174.pdf
    • http://nuzenegu.crysijeandesigns.com/uploads/1/3/0/8/130873791/zixilu.pdf
    • http://files.jasmineye.com/uploads/1/3/1/1/131163601/64b314.pdf
    • http://majabuj.somersetabbey.net/uploads/1/3/0/9/130969551/kugurefafik.pdf
    • https://cdn.shopify.com/s/files/1/0436/6457/2569/files/physics_formulas_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/5365/2895/files/water_supply_and_sanitary_engineering_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/mit_press_algorithms.pdf
    • https://cdn.shopify.com/s/files/1/0432/9144/3364/files/88267877627.pdf
    • https://cdn.shopify.com/s/files/1/0428/2993/8855/files/pelejejar.pdf
    • https://cdn.shopify.com/s/files/1/0440/8662/4406/files/gikif.pdf
    • https://cdn.shopify.com/s/files/1/0432/1955/0370/files/mods_para_minecraft_1._8._1.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_off00006ed8.bin
faadc2cc9f5b64e800f02f8ad538875fdf5dd92da5591d2c834f2d12d59a3a9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED8 5520 bytes
font_01_sfnt_off00008160.bin
25ae3cf0aac5bf635459cc18457eb4fa1cf5f83e89500bd66110324651364f39
pdf-font-stream PDF embedded font (sfnt) at offset 0x8160 10392 bytes
font_02_sfnt_off0000a511.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67
pdf-font-stream PDF embedded font (sfnt) at offset 0xA511 16092 bytes
font_03_sfnt_off0000b9d8.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xB9D8 4324 bytes