Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ab70e2df18447f6…

MALICIOUS

PDF

47.3 KB Created: 2020-10-04 06:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d35da85bcadef6d389fc205ef3ffe3c SHA-1: 3e2ec178ad91a7fb8ab5c50c5f1c283dc76d36c9 SHA-256: 4ab70e2df18447f6fb92c58be61fe9eb5d00441318219b38f61b616bdb164565
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a tactic often used in SEO link farm schemes to manipulate search engine rankings or distribute malicious content. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ggtraff.ru/pify?keyword=myron+mixon+smoked+baby+back+ribs'. The document body, though heavily obfuscated, contains references to the same URL and other PDF links, suggesting a coordinated effort to redirect users to potentially harmful sites. 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://ggtraff.ru/pify?keyword=myron+mixon+smoked+baby+back+ribs
    • http://files.pblplace.com/uploads/1/3/1/4/131453969/067f2f6a6bed.pdf
    • http://files.weferlawoffices.com/uploads/1/3/2/6/132695323/jonogotivi.pdf
    • http://salagixem.btplacoe.com/uploads/1/3/1/1/131164366/joxunabobopuso.pdf
    • http://files.blazinb.com/uploads/1/3/1/3/131378837/kuviposag.pdf
    • http://sovabeke.bamboozlestraws.org/uploads/1/3/2/3/132302926/videdafudivoxuxudam.pdf
    • https://site-1036698.mozfiles.com/files/1036698/58833105332.pdf
    • https://site-1039505.mozfiles.com/files/1039505/podifovusolekawunegobin.pdf
    • https://site-1036697.mozfiles.com/files/1036697/34630890152.pdf
    • https://uploads.strikinglycdn.com/files/14cb83dd-73d5-4ba0-82de-f75d1394b283/46811372042.pdf
    • https://uploads.strikinglycdn.com/files/814d051a-c717-4c86-b464-ed2472d62c07/rarijesabimukujopogi.pdf
    • https://uploads.strikinglycdn.com/files/eae273a3-9ea0-4458-b618-23300ba366ec/61051878254.pdf
    • https://uploads.strikinglycdn.com/files/32f5375e-64fc-4de2-9bbf-85a703d2774b/88569770494.pdf
    • https://uploads.strikinglycdn.com/files/fcf8c992-81ea-4d84-8220-1837ed72e6fc/4535767755.pdf
    • https://uploads.strikinglycdn.com/files/b126c7f5-4965-4a5a-a99b-ce32031a4cc1/21674785919.pdf
    • https://uploads.strikinglycdn.com/files/fa74780f-8605-4498-a44f-d5928833281d/99943117324.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_off00006dcc.bin
30b6f43a6763acaf7ac44f7ad6f33e4fb6193be53ffb58d6f67697e061303a43
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCC 5140 bytes
font_01_sfnt_off00007f27.bin
73907cd13a5d0f0b3c177ae8d8b7998a464bfabe831dfe759860603b9b62e6be
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F27 10372 bytes
font_02_sfnt_off0000a266.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xA266 4324 bytes