Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe856e9438a40b0…

MALICIOUS

PDF

44.1 KB Created: 2020-08-20 20:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06fdb06c944652090779df9267ffe865 SHA-1: 95cf4378f9d2ebc0c2abb49226cbc0ca6f83cd32 SHA-256: 2fe856e9438a40b085f73c26d2414b953b2110f4fe800d17599ac23c2bb685fd
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document impersonates a cloud file-sharing service to lure the user into clicking a link. The primary link, 'https://ttraff.com/pify?keyword=adobe+acrobat+reader+android+cracked', leads to known malicious redirector infrastructure. The document also contains a large number of embedded links to PDFs hosted on Shopify, likely part of a link farm for SEO manipulation to increase visibility of 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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=adobe+acrobat+reader+android+cracked
    • http://files.howesenglish.com/uploads/1/3/0/9/130969446/faneporugukuji_sadujopenosaner_loxigulufak.pdf
    • http://files.ucandles.com/uploads/1/3/0/7/130738912/5647acbd515231.pdf
    • http://gemakib.kercherbiology.com/uploads/1/3/1/4/131406226/f47fc1.pdf
    • http://files.mosaicdownsyndrome.com/uploads/1/3/1/4/131407424/77c7ea3cbcfbc4.pdf
    • http://kosevufer.slapzmagazine.com/uploads/1/3/2/7/132740324/zukajimelus.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2426/files/majijedegavojufuf.pdf
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/36594720900.pdf
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/pasadena_to_anaheim.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/46821524498.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesulemenakasisot.pdf
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/68347373932.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/bujugapi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72163988246.pdf
    • https://cdn.shopify.com/s/files/1/0429/3758/1734/files/lugexijewinivodajibetezub.pdf
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/lojupevudogij.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/44843043404.pdf
    • https://cdn.shopify.com/s/files/1/0443/3425/2188/files/tojulifejojaguf.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_off000060f5.bin
777e31318bdea6145e96099242caaf434618d217ad5eb3e329302965c5092453
pdf-font-stream PDF embedded font (sfnt) at offset 0x60F5 4704 bytes
font_01_sfnt_off000070fa.bin
dc0b953c3d764f1cb687188a66aa4395ea876be89b3bf3ee31ba28f28146aeea
pdf-font-stream PDF embedded font (sfnt) at offset 0x70FA 9936 bytes
font_02_sfnt_off000092fb.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x92FB 4324 bytes