Malicious PDF — malware analysis report

Static analysis result for SHA-256 279942dd3c51d230…

MALICIOUS

PDF

43.1 KB Created: 2020-09-05 20:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cb368a6b797d833d189b42280cb5820 SHA-1: 43583dc8add80a08303205be0e651e754159136b SHA-256: 279942dd3c51d230f949e14199110e015d8a50a783cd417285449d2405dfdd35
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a download for a game ISO. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link points to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, with the primary one being a redirector. The document body contains the lure text and the malicious URL.

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.me/wix?keyword=armored+core+for+answer+iso+ps3
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/filewesotukiwu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/robert_frost_stopping_by_woods_on_a_snowy_evening.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3789128943.pdf
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/compendium_of_forgotten_secrets.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8885/files/dogarepukuxan.pdf
    • https://cdn.shopify.com/s/files/1/0431/4680/5404/files/podilakiwabu.pdf
    • https://cdn.shopify.com/s/files/1/0461/8993/6798/files/99231145944.pdf
    • https://static.usrfiles.com/ugd/5af86b_42a78fdba14f41e2ac63b4ebeb4a5cfb.pdf
    • https://static.usrfiles.com/ugd/55cc32_74a6c85e1c054ce59fee3f01809208fd.pdf
    • https://static.usrfiles.com/ugd/544c7e_12fcbbb3dadb496ea287a3fabbcb28ea.pdf
    • https://static.usrfiles.com/ugd/f68081_cd34e363a0aa4498ade114a3a6c96b90.pdf
    • https://static.usrfiles.com/ugd/5ed537_ae60191bf57041a38ec60605cfbaa759.pdf
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/wejasa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botezosural.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/51270750794.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://static.usrfiles.com/ugd/5af86b_42a78fdba14f41e2ac

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006954.bin
6456c62fdb6379c2f1c288f2fee44de1fa7bb9d6682f2aa7146d32dbc613b736
pdf-font-stream PDF embedded font (sfnt) at offset 0x6954 5516 bytes
font_01_sfnt_off00007c12.bin
c54da4aac8c9b256a93502c01e959a94d463819074e8d5ae75466e945ed7b278
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C12 10312 bytes