Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca33518645bb178…

MALICIOUS

PDF

61.2 KB Created: 2020-08-08 21:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 874ef2eb05a06171d835eb959a1dea95 SHA-1: e1775559cf422faf10829a85f8e8d827ffb27568 SHA-256: bca33518645bb1783e2189bc2eb62820035b301357421337320a3b394dc80b1c
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body text, though heavily obfuscated, contains a URL that appears to be a call to action. The presence of a malicious redirector link and a link farm suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=how+to+rule+the+world+book+pdf
    • http://jexubog.allthepossible.com/uploads/1/3/0/7/130776031/vutobutokadobire.pdf
    • http://files.medfieldgirlsbasketball.com/uploads/1/3/1/4/131438459/sorixuvafi.pdf
    • http://files.prodanpianostudio.com/uploads/1/3/1/3/131398332/wegap.pdf
    • http://files.siochantafarm.com/uploads/1/3/0/9/130969370/6523947.pdf
    • http://files.briannadipilato.com/uploads/1/3/1/0/131070051/3499044.pdf
    • https://cdn.shopify.com/s/files/1/0429/0415/8364/files/abode_flash_11.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1559/files/vawowujoxoxabu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7319/8487/files/pezinov.pdf
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/47918888835.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/dobem.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/49520558046.pdf
    • https://cdn.shopify.com/s/files/1/0433/7693/5068/files/probability_worksheets_grade_6.pdf
    • https://cdn.shopify.com/s/files/1/0435/8114/5243/files/rogisabo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/25635192631.pdf
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/vajopagilax.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/8126526472.pdf
    • https://cdn.shopify.com/s/files/1/0434/6799/7344/files/jirorakavekolixeme.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_off0000a4cf.bin
0fa48cd59844bdb17682c8018aabc4d0ee556747f356935572c45b14eb916772
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4CF 4728 bytes
font_01_sfnt_off0000b506.bin
b4ca4081b2f8c8712424262fc707545b4276d2c601230cd0205e56ca505dc1a1
pdf-font-stream PDF embedded font (sfnt) at offset 0xB506 10672 bytes
font_02_sfnt_off0000d981.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD981 4324 bytes