Malicious PDF — malware analysis report

Static analysis result for SHA-256 c78ac22de3e744ea…

MALICIOUS

PDF

35.0 KB Created: 2020-08-24 20:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 647794bf99a18b8eb5a7a3c13a512286 SHA-1: f09cad921acf23755c4a06ea4bcdcb32e4f81449 SHA-256: c78ac22de3e744eaa81bd88e3a253d8a54449a8029ba83ea840263a064b65a36
148 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain a URL related to a 'strike pack fps dominator xbox one guide', suggesting a lure. The presence of a visual download button and a callback lure further supports a phishing or scam attempt. The file also exhibits characteristics of a link farm, with numerous links to Shopify-hosted PDFs, likely to improve search engine ranking for malicious content.

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.
  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=strike+pack+fps+dominator+xbox+one+guide
    • http://jadubuxix.konektis.ca/uploads/1/3/1/6/131636725/kegekigokuk-gofukijovixofi-gejev-tisimirifizunib.pdf
    • http://deroki.dennispearne.com/uploads/1/3/1/4/131438397/be520dba8b.pdf
    • http://files.elvikam.pl/uploads/1/3/1/4/131408056/ddae01ac.pdf
    • https://cdn.shopify.com/s/files/1/0437/7611/4837/files/sadudibitakodov.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43692268827.pdf
    • https://cdn.shopify.com/s/files/1/0434/2248/2582/files/42070355972.pdf
    • https://cdn.shopify.com/s/files/1/0428/0378/9991/files/30789770067.pdf
    • https://cdn.shopify.com/s/files/1/0438/2290/7554/files/82884261445.pdf
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/siripabu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7081/5397/files/lomojelinexemezejas.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0296/files/25966793418.pdf
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/dadevi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/21130100549.pdf
    • https://cdn.shopify.com/s/files/1/0437/7434/5365/files/waradus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/24587289395.pdf
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/play_store_app_com_jio.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_off00004662.bin
0db2263507c1e801d8452c0432ac7acda7787f86c7a21502064ca1a96b7104bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x4662 5820 bytes
font_01_sfnt_off00005a13.bin
c1679d37ca095ff995d5a18fcf69f27fe43ffd61f6c97366a0e95c0a887a34f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A13 10308 bytes