Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d9e77474e28696f…

MALICIOUS

PDF

50.1 KB Created: 2020-08-11 14:46:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 971444728044d3ebd8c3185b96f126a7 SHA-1: f5369f6e975cf20c58f615b571707da90b8294c8 SHA-256: 2d9e77474e28696fed58b5d8797523e112112e2ae801387b3576030a54de1550
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=autonomous+robots+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this malicious URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating a social engineering attempt to drive traffic to malicious sites.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=autonomous+robots+pdf
    • http://files.redrockpilates.com.au/uploads/1/3/2/6/132681392/9255355.pdf
    • http://files.yoya-textiles.com/uploads/1/3/1/4/131407692/7696572.pdf
    • http://files.appleridgecooperativehomes.com/uploads/1/3/0/7/130775102/rijam.pdf
    • http://files.kanley.org/uploads/1/3/1/8/131871424/bitevomuma.pdf
    • https://cdn.shopify.com/s/files/1/0434/3611/4076/files/xepukowegeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/mifamisodijoru.pdf
    • https://cdn.shopify.com/s/files/1/0433/2955/2552/files/dd-_214_form.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/comptabilit_analytique_dfinition.pdf
    • https://cdn.shopify.com/s/files/1/0438/3073/9106/files/95000430493.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/eso_vile_manse_bosses.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakuxosisubesabemobaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/6625/3724/files/78451481873.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/80033213911.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/33021991488.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/buguvojixadok.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_off00007a2c.bin
0b2abc6f8a88f79fbcab65476e2a2bf2108ee7be13a239e6cfc4cb3e30eeb0cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 4792 bytes
font_01_sfnt_off00008a43.bin
78d2278d364d26ba2260f34dcb0ce5f57c5f71e3bd1b5f9ca3eebed394fad915
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A43 10376 bytes
font_02_sfnt_off0000adb2.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xADB2 4324 bytes