Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0214b927bebe2b2…

MALICIOUS

PDF

46.3 KB Created: 2020-09-19 01:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f2701384dc9c8d43e5682b2289ce1cb SHA-1: fa436c729741a14ccbf5e301a2ae10e6ceaa18c9 SHA-256: e0214b927bebe2b2eea0ab156e234040422991f77bc9a84b61882bf569c48602
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

This PDF document contains a malicious redirector link disguised as a free download for 'Gta iv 4 for android'. The link, https://ttraff.me/wix?keyword=gta+iv+4+for+android+-+100+free+working+apk+download, leads to a link farm with numerous other PDF files, indicating a SEO-based distribution tactic. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.me/wix?keyword=gta+iv+4+for+android+-+100+free+working+apk+download
    • http://files.virginiabiblechapel.org/uploads/1/3/0/7/130774973/05992a.pdf
    • http://files.accidentalmusician.com/uploads/1/3/1/4/131409861/silemireteteke-fodidorofasij-tifubulozi.pdf
    • http://rapilezil.westernpneumatics.com/uploads/1/3/1/3/131381052/5899924.pdf
    • https://4831480a-0eef-4daa-b48e-2c50bad5e0b4.filesusr.com/ugd/b463f2_2cc0cfb7f1364eafaedc28b89f5ef174.pdf?index=true
    • https://2563ffaa-aaf1-41a8-b898-aff9c0821ed9.filesusr.com/ugd/8e6e76_8fef49d5584f46db9b99042b4def7832.pdf?index=true
    • https://4f9bf08f-3222-4862-bae7-773c1cad1bc9.filesusr.com/ugd/b9801a_11d8b4433ce94b5eabaca2537196728a.pdf?index=true
    • https://4db86dda-ea04-4b41-a2a6-2dfaf10826a2.filesusr.com/ugd/912de2_b983421c937940669e0fb794af738e47.pdf?index=true
    • https://a93db66b-03a3-4e83-b8f2-6cf4c5c33692.filesusr.com/ugd/31bf02_c2b4cc76c4a3487ba64f4547943a41ca.pdf?index=true
    • https://f3acceb9-e6ba-44ca-b94a-d4737192fc48.filesusr.com/ugd/5ea691_8b704f1dd6164770bf449676d699df80.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0459/9739/2031/files/kibolanojulibukaliduxoga.pdf
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/angularjs_4_sample_project.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/barreiras_da_comunicao_organizacional.pdf
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/1683790979.pdf
    • https://cdn.shopify.com/s/files/1/0434/3732/6502/files/autismo_e_incluso_livro.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_off0000684e.bin
1a8441554ef9af3fad08dbddc5151f2656a7fec7d688f218785dda6851a21c3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x684E 5380 bytes
font_01_sfnt_off00007ad8.bin
0669188cb888915f379b8632c6e6a6244f03468d2de111440dc20b7f66e69c48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD8 10096 bytes
font_02_sfnt_off00009d6a.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6A 4324 bytes

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