Malicious PDF — malware analysis report

Static analysis result for SHA-256 a027bc401c20b7b2…

MALICIOUS

PDF

61.4 KB Created: 2020-08-12 09:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4042a687a9523c2911b5fcc6c7d5ff5c SHA-1: 21db310d5b23301f2e94e9e670c0d7f4d79e6df0 SHA-256: a027bc401c20b7b290b677ee4bd33d0eac72750d99d1a10ca5613e4c26678640
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=yasin+suresi+pdf+diyanet. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDF files, suggesting a link farm designed to obscure the ultimate malicious destination. The primary intent appears to be redirecting users to malicious content via the ttraff.com domain.

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.com/pify?keyword=yasin+suresi+pdf+diyanet
    • http://files.la-iphonerepair.com/uploads/1/3/1/3/131382274/9721243.pdf
    • http://tolodak.portmelbournenetball.com/uploads/1/3/1/3/131380213/nowafabi_rukuwowogapebak.pdf
    • http://tatala.leisuretravelsrilanka.com/uploads/1/3/1/6/131606289/7ac4c52b.pdf
    • http://files.funactingstudios.com/uploads/1/3/2/6/132695325/1809200.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/ragatorirejimiwesopevu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/94170380923.pdf
    • https://cdn.shopify.com/s/files/1/0433/4203/7150/files/koronewisir.pdf
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/2371737489.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/don_quijote_avellaneda.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/wibuzuvagevujel.pdf
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/rabenitiranodotudu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/37176864650.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6677/files/wokesemetakusasul.pdf
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/54472411827.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/22811036699.pdf
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/fosavasirofavatigibojil.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
stream_005_off0000b7d6.bin
a95ce9b446efac1659698027d328d77e0c2f53bac29bb67702845a4c5eff9bab
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB7D6 25140 bytes
font_00_sfnt_off0000797b.bin
617316a8588157a6abd13e44dce8696ba878aedaa713e0ec8ab24beccac9c3a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x797B 5064 bytes
font_01_sfnt_off00008ac7.bin
932b3d5432985a386602d717ef55ec1b6941c192793e234dadbf3fd662c22663
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC7 15236 bytes