Malicious PDF — malware analysis report

Static analysis result for SHA-256 828f70d48bc2b842…

MALICIOUS

PDF

43.8 KB Created: 2020-08-17 14:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44857e0467d12cce26200811b0225c2d SHA-1: fb195f9fff0a7bb3a41efc63256673842dd61bf2 SHA-256: 828f70d48bc2b842ab4bfa416db141f0769f31b6f03f558896c1d7baee4ea9a2
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body presents a deceptive message about network connectivity issues, likely intended to trick the user into clicking the malicious link. The primary malicious URL identified is https://ttraff.ru/pify?keyword=androidap+can%2527+t+connect+to+this+network, which is a known redirector. The file also contains numerous links to benign Shopify-hosted PDFs, likely part of a SEO spam campaign to improve search engine ranking for malicious content.

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=androidap+can%2527+t+connect+to+this+network
    • http://zobimo.thetahealingcalgarycanada.com/uploads/1/3/0/8/130874478/zepaxe.pdf
    • http://rapukal.enlightenedastrologycourse.com/uploads/1/3/1/4/131452938/xigilifire-mujid-kejenemefasodus-gakaregudagawis.pdf
    • http://tukega.steppingoutridingschool.com/uploads/1/3/1/4/131437619/soditi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3791/files/cogs_caravels_and_galleons.pdf
    • https://cdn.shopify.com/s/files/1/0438/3450/7426/files/52105354307.pdf
    • https://cdn.shopify.com/s/files/1/0434/2913/4501/files/fogujupibazesebamofizeban.pdf
    • https://cdn.shopify.com/s/files/1/0446/6386/5497/files/solid_converter_to_word_online.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/34919679640.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/xovesej.pdf
    • https://cdn.shopify.com/s/files/1/0433/6317/2502/files/garedikobakupurijexux.pdf
    • https://cdn.shopify.com/s/files/1/0430/3319/8745/files/canada_political_map.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/administrao_publica_livro.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/5965651836.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/vixiparideferazigopi.pdf
    • https://cdn.shopify.com/s/files/1/0450/3309/5326/files/13269940223.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_off00006033.bin
515c619e8f72f6a74cfce8bce320a3774bf45fb0cd1013fe13b43eb52ea29b76
pdf-font-stream PDF embedded font (sfnt) at offset 0x6033 5096 bytes
font_01_sfnt_off00007185.bin
aa8d65eded622b5d4e4670f134ae8fa0fcf46961dfe314ba6c0c5eebd2f36d7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7185 10060 bytes
font_02_sfnt_off000093f4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x93F4 4324 bytes