Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f01781b431c7a88…

MALICIOUS

PDF

48.7 KB Created: 2020-08-12 03:12:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84704b3e467fa2a7fc2fcf31dba8589b SHA-1: 6c39d29938febef5d790e5a6188ce9c95efc693b SHA-256: 3f01781b431c7a88408e75d6635dfa68ad73dd69659aef22e5c291e83a2e0068
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=administrative+coordinator+job+description+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, with a significant portion hosted on cdn.shopify.com. The document body, though partially corrupted, also contains the primary malicious URL, reinforcing the lure of a job description to entice clicks. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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=administrative+coordinator+job+description+pdf
    • http://files.pathpointstowellness.com/uploads/1/3/1/1/131164424/1973894.pdf
    • http://files.trinitybillings.org/uploads/1/3/0/8/130873708/3643930.pdf
    • http://files.backstageknitting.com/uploads/1/3/2/6/132695805/a3d59fc6b.pdf
    • http://files.shopthirdculturebakery.com/uploads/1/3/0/9/130969656/06f8324b.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9799/files/vegagewowu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/icao_annex_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/jafufa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/xarederirukolevidogu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5101/5577/files/74075946509.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wozofedotomutigetipire.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0990/8642/files/sinurilerivitowifog.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_off00007339.bin
b45df7651d8c4f3db58201aba6d2ae169fe941d869b22affe00dab9952e37798		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 5320 bytes
font_01_sfnt_off0000852d.bin
e49846f106dc34c1eeb6373cca81f84930db19e2409c2f1afba8f372360afccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x852D 9932 bytes
font_02_sfnt_off0000a6ff.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FF 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.