Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3326269035a97a2…

MALICIOUS

PDF

61.1 KB Created: 2020-08-25 02:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e54aa6bb8469bd7abba127cd212c83c SHA-1: 9a398f80b40fbbe211708df2151dfc70ead6d81a SHA-256: b3326269035a97a29f6dff0cc615ce65caba59b314da2786cb690d1ea04ad0a8
168 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=update+huawei+p8+android+7'. Additionally, a high-severity heuristic indicates a lure to install a browser extension or update. The document body, though heavily corrupted, contains similar text and URLs, reinforcing the social engineering attempt. The presence of a link farm suggests an effort to distribute malicious content widely.

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.ru/pify?keyword=update+huawei+p8+android+7
    • http://files.kickkim.com/uploads/1/3/1/0/131070231/xuforupuninuwapod.pdf
    • http://files.tammybiggsgymnastics.org/uploads/1/3/1/3/131380504/lixobotewakut.pdf
    • http://jokubewi.harvestmooncanning.com/uploads/1/3/1/3/131398097/9a9377f45a2.pdf
    • http://pamaj.clubvaultitudetexas.com/uploads/1/3/2/7/132710712/liwiji.pdf
    • http://files.mesalegria.com/uploads/1/3/1/4/131438397/naruralatedogep.pdf
    • https://cdn.shopify.com/s/files/1/0438/8270/9160/files/zewufepiwixa.pdf
    • https://cdn.shopify.com/s/files/1/0438/7323/9195/files/thorowgood_gullet_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/3504/0664/files/tizag.pdf
    • https://cdn.shopify.com/s/files/1/0434/2562/8327/files/rurouni_kenshin_reflection.pdf
    • https://cdn.shopify.com/s/files/1/0437/9167/9639/files/determine_buck_converter_efficiency_in_pfm_mode.pdf
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/wow_bfa_alchemy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/free_converter_to_editable_word_document_online.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/kowar.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_off0000b042.bin
04d92c2136e0fce763d24336cde103131c2d81ccff382f6c923b0852c3bb5332
pdf-font-stream PDF embedded font (sfnt) at offset 0xB042 5196 bytes
font_01_sfnt_off0000c201.bin
c2e5d4ceebf53c2f2d9805ab7afb78d4ed7b30e452f28289a5ddf0e70fed29ed
pdf-font-stream PDF embedded font (sfnt) at offset 0xC201 11128 bytes