Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b598c58c9744a38…

MALICIOUS

PDF

46.7 KB Created: 2020-08-16 19:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7a3a422b86020c91b32809648493c97 SHA-1: e6fca8fed6f46a472fb54c0cd0c27d13048033ed SHA-256: 1b598c58c9744a385dcde8a4bf98cd51ab34bd5388147db3b5c18008bbb4415b
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=my+talking+angela+cheats+apk+free'. This indicates the document is designed to redirect users to potentially harmful content, likely a scam or malware download, under the guise of providing game cheats. The presence of a large number of external PDF links further supports a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=my+talking+angela+cheats+apk+free
    • http://files.vrlabucd.com/uploads/1/3/0/7/130776296/85c864.pdf
    • http://files.longbeachrental.ca/uploads/1/3/2/6/132681394/kadudusala.pdf
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/ielts_listening_map_practice_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/29621397564.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/josanuvivadadubiwivejevag.pdf
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/zujuvezodamikurek.pdf
    • https://cdn.shopify.com/s/files/1/0434/1560/1314/files/60546223466.pdf
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/96487654722.pdf
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/apsrtc_live_track_bus_app.pdf
    • https://cdn.shopify.com/s/files/1/0428/6539/3831/files/45973712255.pdf
    • https://cdn.shopify.com/s/files/1/0434/8130/1158/files/collection_framework_in_java_ebook.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_off00005ec1.bin
e66e0b4ff45dfea86c8fd4050a765172635eb75c374170b52e439ee086fb4d77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 5448 bytes
font_01_sfnt_off00007148.bin
4e2a9a8347c25f5a3f2ba5246b070e94975b1a171ed56ae5c33a3272d239cf82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7148 9088 bytes
font_02_sfnt_off00008a65.bin
03f75692f631ed666ce5af1bc05bf83dbba0242401c929d22ed905a3ee0e9059		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A65 10348 bytes

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