Malicious PDF — malware analysis report

Static analysis result for SHA-256 f745901f8685d20a…

MALICIOUS

PDF

49.7 KB Created: 2020-08-12 17:45:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44133ab99c602b0ca6be0cedd5933c5f SHA-1: df899c50fdc3542c858ba15ee8e1110ea25e54d7 SHA-256: f745901f8685d20a24c9ec92ab0578bb49cd7d3be63e77b7eee0ce4f51c6d90f
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 link farm hosted on Shopify. One of these links, https://ttraff.com/wb?keyword=problems%20on%20ages%20with%20solutions%20pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. 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.com/wb?keyword=problems%20on%20ages%20with%20solutions%20pdf
    • http://files.fearlesshealingtherapy.com/uploads/1/3/0/7/130775462/gutarodusazifevobit.pdf
    • http://files.back2woodside.com/uploads/1/3/0/8/130874683/21f2dd08d0460.pdf
    • http://files.printsdoneright.com/uploads/1/3/1/3/131397987/bivididowu-lukeloluvexonik-befeju-zetutimovudoka.pdf
    • http://files.drsjbd.com/uploads/1/3/2/6/132695679/xetesasitunogud.pdf
    • http://selumasup.pupfishcafe.com/uploads/1/3/1/1/131163635/gotudux_zeturokabed_fufaxegevub.pdf
    • https://cdn.shopify.com/s/files/1/0431/7875/4199/files/nimowutorosefewuka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/mamovelabakifu.pdf
    • https://cdn.shopify.com/s/files/1/0438/2975/6066/files/putedotopafozuvixikijoj.pdf
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/woruwokiregizibo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0119/files/jikiza.pdf
    • https://cdn.shopify.com/s/files/1/0447/9080/8727/files/contoh_dokumen_amdal_hotel.pdf
    • https://cdn.shopify.com/s/files/1/0437/5989/4689/files/nawiloborufuzawuruwi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/54171164250.pdf
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/dexururazawime.pdf
    • https://cdn.shopify.com/s/files/1/0432/5788/8936/files/pefezekexe.pdf
    • https://cdn.shopify.com/s/files/1/0434/4256/9368/files/10222176081.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_off00006de8.bin
3b097d3aeefb930b9833c1557165ed5e8557a4a461f64d065b8f9b0aada24064
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE8 5568 bytes
font_01_sfnt_off000080b2.bin
308b232a137f1bbb53f155fb14cf176d40a9eef937774ac0ea3d9a5a357f9bf7
pdf-font-stream PDF embedded font (sfnt) at offset 0x80B2 13548 bytes
font_02_sfnt_off0000ab9d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB9D 4324 bytes