Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b99232a1443b999…

MALICIOUS

PDF

63.2 KB Created: 2020-08-20 11:27:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b18ab2b23734d15da0f75c4b0ba814b SHA-1: f7a48b8cf45c51e9ebe35468d9d343a043612be0 SHA-256: 3b99232a1443b999d1db8eb43458ccefbc1b5a31bf5b462e0b3428c1f3f20552
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL, 'https://ttraff.ru/pify?keyword=minecraft+vn+apk', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to 'Minecraft vn apk', suggesting a lure for users seeking game-related downloads. The PDF's structure and the presence of numerous links indicate a link farm or redirection tactic to deliver a malicious payload.

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=minecraft+vn+apk
    • http://files.wbpolicefoundation.org/uploads/1/3/0/8/130814680/ximadelikix_tinag_xuserimetot.pdf
    • http://mopavemu.heritagehousepreschool.com/uploads/1/3/0/8/130873954/xojifikazu.pdf
    • http://tibew.absipartnership.org/uploads/1/3/0/9/130969950/tibigokodusinexisu.pdf
    • http://files.twerkoutbylynnea.com/uploads/1/3/0/7/130775393/bemin_fewasakakelub.pdf
    • http://files.taymun17.org/uploads/1/3/1/8/131857690/ad63888.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/52553042522.pdf
    • https://cdn.shopify.com/s/files/1/0438/5210/3842/files/42025210003.pdf
    • https://cdn.shopify.com/s/files/1/0434/8280/8472/files/livurudelawofexowebixa.pdf
    • https://cdn.shopify.com/s/files/1/0440/8960/6294/files/bawamebiligawis.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/56849259225.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/96734682513.pdf
    • https://cdn.shopify.com/s/files/1/0432/5552/9640/files/58664327122.pdf
    • https://cdn.shopify.com/s/files/1/0429/1647/9132/files/encyclopedia_brown_stories.pdf
    • https://cdn.shopify.com/s/files/1/0434/7278/1477/files/18961761343.pdf
    • https://cdn.shopify.com/s/files/1/0433/3967/7855/files/22217893793.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/81810833280.pdf
    • https://cdn.shopify.com/s/files/1/0436/9154/0634/files/zojoteduton.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_off0000ad0c.bin
f61e7bb5d47340eff9265ff6172ece7419c2c3af752a5f64119a4cc7251badf5
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD0C 4608 bytes
font_01_sfnt_off0000bcbe.bin
983f4807f1953a86742c0c7ab182bf2083f3bc6135260b5819a208becc57cd71
pdf-font-stream PDF embedded font (sfnt) at offset 0xBCBE 10972 bytes
font_02_sfnt_off0000e173.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xE173 4324 bytes