Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d5f76efaab0f4…

MALICIOUS

PDF

39.1 KB Created: 2020-10-19 14:15:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 609455581e3a4003d4b294ac3d9fe0ab SHA-1: 39184cf1c512bcd2946d6fdd08f70440836bdfbb SHA-256: 941d5f76efaab0f42570449f0480c49483f4062c87b371ae2dd6014e3a84297f
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised as a search query for 'fire emblem heroes orbs android ios'. This suggests a phishing or scam attempt. The PDF also contains a large number of external links, many of which point to benign content hosting sites, but the primary malicious link is the most critical IOC. No scripts were extracted from this sample.

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.me/123?keyword=fire+emblem+heroes+orbs+android+ios
    • https://tevirilozarenov.weebly.com/uploads/1/3/2/6/132695732/fekarumalovesen-lalapimekitove.pdf
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/5328863.pdf
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/7a187234.pdf
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/tigomujevilet_vigiwemuxatodu_xewoxezu_repofazum.pdf
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/somulimezopomab-nolapuxoduvamak.pdf
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f880440642d8.pdf
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5f88cb073c869.pdf
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/9a1bdf981.pdf
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/7676568.pdf
    • https://uploads.strikinglycdn.com/files/c4d94e96-ffb5-4d13-9f69-e54ecc0347b1/95870384840.pdf
    • https://uploads.strikinglycdn.com/files/72645082-d7de-43da-954f-06ff7c7b31bf/61472152862.pdf
    • https://uploads.strikinglycdn.com/files/1caa91b3-926a-48af-a0fb-b5a26a55f779/24724674821.pdf
    • https://uploads.strikinglycdn.com/files/69d64516-93ea-4421-964a-3d7dde92c165/37534869255.pdf
    • https://cdn.shopify.com/s/files/1/0462/7261/0455/files/zobuvefolizo.pdf
    • https://cdn.shopify.com/s/files/1/0480/7481/7693/files/free_handwriting_worksheets_generator.pdf
    • https://cdn.shopify.com/s/files/1/0484/1052/5853/files/26976652937.pdf
    • https://cdn.shopify.com/s/files/1/0486/0752/7077/files/ganixozilijovomupupawu.pdf
    • https://cdn.shopify.com/s/files/1/0481/5916/2521/files/instagram_direct_message_recovery_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/3449/9493/files/58963116361.pdf
    • https://cdn.shopify.com/s/files/1/0498/6984/8737/files/sunemorazibi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005aed.bin
6892558bcd5463f5df1d1dfaa07ee09baf48145ffffcc993cd5de1a8a8e4071c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AED 5160 bytes
font_01_sfnt_off00006c40.bin
41b0d1764d1b8386b6d40030d36e0dce92e3e37e05a04d52be2aa1d57ee973c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C40 10176 bytes