Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6f47c4d3d23688…

MALICIOUS

PDF

44.0 KB Created: 2020-08-21 11:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce86ca2407a7c40f180cbb3264ad5d5f SHA-1: 48ca104d6b7c43bd5bad86b2daa0a94d6875b4a3 SHA-256: 8b6f47c4d3d236889f11d0d01ae926f2efb30edccb9c3cbaf2dd81c6d1574d65
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=android+obd2+gauges'. Another heuristic indicates a large number of external PDF links, suggesting a link farm or SEO poisoning attempt. The document body, though heavily obfuscated, contains references to URLs that are likely part of this distribution scheme.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=android+obd2+gauges
    • http://rozowob.3wheeldriveonline.co.uk/uploads/1/3/1/4/131409090/rixibesonax_polakomejinuko_rigab.pdf
    • http://sujog.verateschow.ca/uploads/1/3/1/0/131071164/safijulexiji.pdf
    • http://files.colchestertri.com/uploads/1/3/1/4/131437834/6bfe2.pdf
    • https://cdn.shopify.com/s/files/1/0438/2221/9421/files/arora_computational_complexity.pdf
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/xolikon.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/33831033057.pdf
    • https://cdn.shopify.com/s/files/1/0461/5539/9331/files/motawanoporolilekemofu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/alban_berg_lulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/razafowotibaveba.pdf
    • https://cdn.shopify.com/s/files/1/0429/0464/9884/files/43554098522.pdf
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/89341108988.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/11859075576.pdf
    • https://cdn.shopify.com/s/files/1/0435/5879/7471/files/20099448711.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/71695204000.pdf
    • https://cdn.shopify.com/s/files/1/0437/1841/0394/files/byod_security.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_off00006131.bin
a3deb1d1d66743e2372670e83a301f1f5b8c566aa89bd6dfcbd01d977d6a6e2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6131 5024 bytes
font_01_sfnt_off00007239.bin
9a7472002552b597bfeabde398a90d26d9ff86416eb2535ba3e20e33f80fe410
pdf-font-stream PDF embedded font (sfnt) at offset 0x7239 10172 bytes
font_02_sfnt_off0000950e.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x950E 4324 bytes