Malicious PDF — malware analysis report

Static analysis result for SHA-256 305eb635f619ad9c…

MALICIOUS

PDF

43.8 KB Created: 2020-08-17 17:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92a81dbe7b2fb295bdbeb2c627ea25c1 SHA-1: 9b98556256babc82412e8c37e430b9b7e413a44b SHA-256: 305eb635f619ad9c4101fedbdb5a161e16cdbae866f9eb7e3eafeca8807efc28
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. This link, 'https://ttraff.cc/pify?keyword=former+afdb+president', is likely the primary mechanism for delivering a malicious payload or directing users to a phishing site. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to obscure the malicious destination. 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://ttraff.cc/pify?keyword=former+afdb+president
    • http://wenovuz.4waybasics.org/uploads/1/3/2/8/132814930/50a46a2903f0.pdf
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/rafasivolafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/pofolifotojetubovoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/9141/8526/files/70741806045.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/29950908127.pdf
    • https://cdn.shopify.com/s/files/1/0429/0058/6649/files/zerebuvagenu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9462/9788/files/vimiwazobodolagineta.pdf
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/insurgent_full_movie_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/35437330185.pdf
    • https://cdn.shopify.com/s/files/1/0427/9386/1279/files/tfs_power_tools_2015.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_off0000610a.bin
7335b2aa33537aa9d9aeae6213dcbb895a0427f9342f4dd58e0c456a7c13c989		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610A 5040 bytes
font_01_sfnt_off00007201.bin
8c13fff3156335c726524c9760d82b90d8c2fd3a64617fbeb324e3eff74ed90d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7201 10152 bytes
font_02_sfnt_off000094ce.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94CE 4324 bytes

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