Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca28f8b1c9e86628…

MALICIOUS

PDF

46.3 KB Created: 2020-08-20 07:13:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84d964afee31b1d5874f317b2e4d0575 SHA-1: d86809b7167b1159f3549c7f5d7e90393a79853b SHA-256: ca28f8b1c9e8662829d7139d618e39cd24a350e4ae892b0f8eaf1e94e6f1a058
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, https://ttraff.cc/pify?keyword=colors+bangla+tv+show, points to a known malicious redirector. The document body contains garbled text but also includes the same URLs found in the link farm, suggesting an attempt to disguise the malicious intent. The primary goal appears to be redirecting users to potentially harmful content through this extensive link farm.

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=colors+bangla+tv+show
    • http://mulumoxi.mountclaremontplaygroup.com/uploads/1/3/1/4/131407588/buloxabupo.pdf
    • http://files.quinnfarm.qc.ca/uploads/1/3/1/4/131453054/fonasusenules.pdf
    • http://files.playthinkfest.com/uploads/1/3/1/3/131379280/2085529.pdf
    • http://files.snugpubcocoavillage.com/uploads/1/3/1/0/131070849/911995dd952f90.pdf
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/devil_may_cry_5_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0429/1762/6012/files/present_to_past_tense_verbs_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/8961/5266/files/96530582448.pdf
    • https://cdn.shopify.com/s/files/1/0438/7222/3387/files/castrol_atf_dex_ii.pdf
    • https://cdn.shopify.com/s/files/1/0438/9653/7243/files/af_form_988_fillable.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/dekokudizodedakezovodexu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/kumon_answer_book_level_e_math.pdf
    • https://cdn.shopify.com/s/files/1/0439/5037/5070/files/juridifedutoxogomolipamaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5187/files/data_structure_and_algorithm_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0675/4970/files/7852953074.pdf
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/cloverfield_paradox_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/wetovatudumaxa.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_off0000583f.bin
b07bbb8fbba34bf7b22c95eed25b767bae1f615a173625af1a5c26c9f58ed5d7
pdf-font-stream PDF embedded font (sfnt) at offset 0x583F 5144 bytes
font_01_sfnt_off000069c6.bin
2bdca0c0c3613eec58c1e19e3e766906b6231668bee4374700c2fa9ef08de6b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x69C6 6376 bytes
font_02_sfnt_off00007e3c.bin
502c67284d0d91dec1911870f53ad8f6bc5bff8eb66922f551cbb913440ae7d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3C 14460 bytes