Malicious PDF — malware analysis report

Static analysis result for SHA-256 5290cdd9942e3d79…

MALICIOUS

PDF

43.9 KB Created: 2020-08-17 03:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8361979d4cfe8568258096762fd881dd SHA-1: 679876b53c2f3e41861fe57d72a3d83f79ab011e SHA-256: 5290cdd9942e3d796bfded4dc235d2eeefd3d93c8cc4b6922ac2e9daf87ea75a
160 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a malicious redirector and part of a link farm, specifically designed as an advance-fee scam lure. The document body contains text related to 'chhota bheem cartoon games' and a URL pointing to a redirector, which is likely intended to lead the user to a malicious site. The presence of numerous external PDF links further supports the link farm heuristic.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.com/pify?keyword=chhota+bheem+cartoon+games
    • http://files.warnersofcoffeyville.com/uploads/1/3/0/7/130775953/zixis.pdf
    • http://fefovow.matthewthomann.com/uploads/1/3/0/7/130776046/887a94ff.pdf
    • http://files.whattodoincatalonia.com/uploads/1/3/1/8/131871424/3de36c10a.pdf
    • http://files.greyelephantarch.com/uploads/1/3/0/7/130776629/2686e1d1.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7493/files/ximexabaxafana.pdf
    • https://cdn.shopify.com/s/files/1/0432/7256/8996/files/nusodenufire.pdf
    • https://cdn.shopify.com/s/files/1/0436/8669/0969/files/business_law_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/keladaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/rewavixobobogijofo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3706/5370/files/35332474030.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/tinoxima.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/no_ceilings_lil_wayne.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/30753532346.pdf
    • https://cdn.shopify.com/s/files/1/0438/0321/3984/files/55707260967.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/59750586492.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/bartaman_patrika_today_all_pages_in_bengali_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/45658956445.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/
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ae.bin
5c75c4e92a0fc19ff1543f76dfd89695a0d85e7a469e2592ded8108df33b9576
pdf-font-stream PDF embedded font (sfnt) at offset 0x69AE 5224 bytes
font_01_sfnt_off00007b51.bin
b8076542ded603a0348e986a041ae9a028e48b21d746cf8b3ce8eab1d26af567
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B51 12364 bytes