Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b87541b503f9e73…

MALICIOUS

PDF

48.5 KB Created: 2020-08-22 08:38:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53bd26f1540c9a4aef6d3e7ed1983e91 SHA-1: e06ea4fa4823090e8efae1ce00522114356a79b2 SHA-256: 3b87541b503f9e73bdc7ebcbb3a2a4c85202510cd84f09653e8e01cfb54511b9
128 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 ttraff.com. The document body, though partially corrupted, contains text related to 'Animal jam play wild free pc' and a URL that appears to be a lure for a download. The PDF also contains a link farm heuristic, indicating multiple external links, many hosted on Shopify. The primary malicious URL is a redirector that likely leads to further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=animal+jam+play+wild+free++pc
    • http://files.paulavogt.com/uploads/1/3/0/7/130738720/b8f50df9.pdf
    • http://files.anchorageteaparty.org/uploads/1/3/0/9/130969021/gasuvojogave.pdf
    • https://cdn.shopify.com/s/files/1/0437/7922/7810/files/16302828379.pdf
    • https://cdn.shopify.com/s/files/1/0429/3630/3782/files/non_chronological_report_examples_year_3.pdf
    • https://cdn.shopify.com/s/files/1/0447/4375/3877/files/algebra_2_word_problems.pdf
    • https://cdn.shopify.com/s/files/1/0433/8991/1194/files/73998852622.pdf
    • https://cdn.shopify.com/s/files/1/0429/1212/0998/files/pananaliksik_tungkol_sa_asignaturang_filipino.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdf
    • https://cdn.shopify.com/s/files/1/0431/5221/2130/files/81289776879.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/bangsamoro_organic_law_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38684703775.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/37829840453.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/28483707709.pdf
    • https://cdn.shopify.com/s/files/1/0433/3305/8715/files/43081474498.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006174.bin
4075f3562e4b446f641347990b7864f2635d5eb7d1bc4f7aaeaeff8a8d280080
pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 5380 bytes
font_01_sfnt_off000073b0.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B0 1800 bytes
font_02_sfnt_off00007c3e.bin
c1fb4799bbb64f5a656af39aa5f5520c30bb0fc7ea9c22d1c61c9b71706d67c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3E 10308 bytes
font_03_sfnt_off00009fc3.bin
39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC3 16092 bytes