Malicious PDF — malware analysis report

Static analysis result for SHA-256 534deeeb7cbd5f40…

MALICIOUS

PDF

41.8 KB Created: 2020-08-16 11:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a50f40ec142c865fcaf419b386bd68d SHA-1: 21afa4beade2ce67bb95e0359805e1994aa461f8 SHA-256: 534deeeb7cbd5f401bb4df2ba2147f1ca330d69ee420dbb1172e566f5abe7823
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=farmers+almanac+planting+guide+by+the+moon`. This suggests the document is designed to redirect users to potentially harmful content. While the document body contains garbled text, the presence of the malicious link is the strongest indicator of malicious intent.

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.ru/pify?keyword=farmers+almanac+planting+guide+by+the+moon
    • http://files.juliedanho.com/uploads/1/3/1/3/131381605/xifosolij_ralajijojazan_zabano_gobamubakesav.pdf
    • http://files.movingbodieschangingminds.com/uploads/1/3/1/4/131453645/nenudagitim.pdf
    • http://files.fiddlerofstrathspey.co.uk/uploads/1/3/1/3/131381450/jitilo-ninatojax-luzodo.pdf
    • http://files.roadtriprip.com/uploads/1/3/1/4/131407802/rexipuke.pdf
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/mibovitedenet.pdf
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/manual_de_drenagem_linftica.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/lawugedekosarawurapupikox.pdf
    • https://cdn.shopify.com/s/files/1/0435/4854/1079/files/animal_name_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/mexodoru.pdf
    • https://cdn.shopify.com/s/files/1/0429/7110/3395/files/15578600947.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/sort_numpy_array_by_column.pdf
    • https://cdn.shopify.com/s/files/1/0438/9748/7512/files/66781092534.pdf
    • https://cdn.shopify.com/s/files/1/0437/3279/5541/files/pong_python_code.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/ford_explorer_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/8911/5801/files/puregodujiwe.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_off000063fb.bin
d869f0c45dfc4dfb3664e04cfe40025d54d6286322060147ecc018ad2a35ba80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FB 5684 bytes
font_01_sfnt_off0000771e.bin
68275c91b2961fa9caf14ab7a2aeef484afabb971835e1e1e98c7e0d042b40cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 10140 bytes

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