Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c1cb41426e47177…

MALICIOUS

PDF

52.4 KB Created: 2020-08-03 08:32:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ec74dbe360ec1ac35417a55794ce207 SHA-1: 51ac79b2b75d3d9ae658cf3aa43776841c10e47d SHA-256: 9c1cb41426e47177edf902942ec55c4d3476d16fa8a8c75ff3b446a77c77fb27
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to shopify.com domains, likely as a SEO spam or phishing lure. One critical heuristic identified a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=is+gangstar+vegas+offline'. This suggests the document's primary purpose is to redirect users to malicious content, potentially for credential harvesting or malware distribution.

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.ru/pify?keyword=is+gangstar+vegas+offline
    • http://files.joescottportfolio.com/uploads/1/3/1/1/131164476/aeddc64f815b.pdf
    • http://jotejitid.rebeccakautz.com/uploads/1/3/1/3/131383775/jafezimewugit.pdf
    • http://files.carolynangleton.com/uploads/1/3/1/0/131070230/9261810.pdf
    • http://files.thedanceacademynewton.com/uploads/1/3/2/3/132302894/gejil-jimutidile-xiwulebewako.pdf
    • http://files.waiwichita.org/uploads/1/3/1/6/131606818/vizefevir_xizod_tasologuropadoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/98390258482.pdf
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/sexowofutobumuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/53176691905.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdf
    • https://cdn.shopify.com/s/files/1/0429/7143/1065/files/businevodisatewoxukuxiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75320426607.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/6943082945.pdf
    • https://cdn.shopify.com/s/files/1/0429/6520/5141/files/89694152212.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/virulobikitud.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/fuxogeletosokuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/74912857954.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_off00006d02.bin
cc643ad6a32fe4574e8c960129d57ef0782267a54817c3229bbf80e17d5c5384		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D02 4720 bytes
font_01_sfnt_off00007d14.bin
3d7a59e9bc090d42f1b2ad5a5ff0a8e59b8929d039d6d43c6c0a3f2de5c61850		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D14 10260 bytes
font_02_sfnt_off0000a064.bin
069f5cdcb972b33999f3dc18a3e5b847fc2aa024b7c5b45b4734cedf253a8e5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA064 16376 bytes
font_03_sfnt_off0000b60b.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB60B 4324 bytes

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