Malicious PDF — malware analysis report

Static analysis result for SHA-256 92cd788aaa58b359…

MALICIOUS

PDF

41.0 KB Created: 2020-08-15 03:07:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bac1989081184a27a651fd4c8d1f89a SHA-1: 4b1fe2efec91e59c7a55456bd7d839e8a80f42c6 SHA-256: 92cd788aaa58b35999ab7512cc70ae079e104ac7252616a0e244caba46a2200d
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Skype for ipad 3' and a URL that points to a redirector. This suggests a phishing or social engineering attempt to trick the user into visiting a malicious site. The presence of numerous links, many hosted on Shopify, indicates a link farm strategy to obscure the final malicious destination.

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=skype+for+ipad+3
    • http://pewexe.earthtocolor.com/uploads/1/3/2/6/132680866/nosefebixewed_zavilam_rozikeri_liranexow.pdf
    • http://files.rhjerkyoutlet.com/uploads/1/3/1/0/131070450/d9ebcf9ec01a.pdf
    • http://files.yorkanesthesiologists.com/uploads/1/3/0/7/130739826/nozopamowis-nonenexotud-rifakedabo-dezafuwijizefe.pdf
    • http://files.micaelablei.com/uploads/1/3/1/8/131871740/2122632.pdf
    • https://cdn.shopify.com/s/files/1/0433/9499/0247/files/vutar.pdf
    • https://cdn.shopify.com/s/files/1/0449/5792/5544/files/catalogo_avon_16_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/8156/3298/files/80462000937.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/temple_of_elemental_evil_5e.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/gilelut.pdf
    • https://cdn.shopify.com/s/files/1/0437/2067/1384/files/18390024610.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/test_de_raven_para_adultos.pdf
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/react_link_to_another_page.pdf
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/rexenufudafav.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/gejejarukuj.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_off000061cb.bin
03438391798ca012c368d1f08d4a0fbab33799ae0b7ca555d5659b74f4f74f7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 5260 bytes
font_01_sfnt_off000073cc.bin
0e2ec3f758dae791d940d6e1a4e6ce2621a96f8c42425868033d10b2ee57ae64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73CC 10316 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.