Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c05e1f5363d40d…

MALICIOUS

PDF

65.5 KB Created: 2020-08-01 03:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ddd5e47acfead22e76dfc0f2dd73e28a SHA-1: d860a58d944d4a63e8b33bd6f0fc8f53f5690297 SHA-256: 47c05e1f5363d40d4c963969298d64ab39fa788d7018c68793c04d49080f9b0f
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=merge+two+sorted+linked+lists+java'. This indicates a phishing or scam attempt designed to redirect users to malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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.cc/pify?keyword=merge+two+sorted+linked+lists+java
    • http://files.minnesotaflyfishing.com/uploads/1/3/2/6/132682076/729810.pdf
    • http://files.hyderabad-greenacres.com/uploads/1/3/2/6/132696483/pasokitokore.pdf
    • http://files.tinydreamsfarm.com/uploads/1/3/1/4/131437246/1c398b.pdf
    • https://cdn.shopify.com/s/files/1/0433/8152/2599/files/kukatemixuwimegezom.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/32769600629.pdf
    • https://cdn.shopify.com/s/files/1/0435/8507/7405/files/wudilirivoxadujofoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/pomegolivubiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kebiwubinixakagaxirefu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/xuzujunawetorosuxex.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/5325515206.pdf
    • https://cdn.shopify.com/s/files/1/0437/9135/1969/files/fimapifalazuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/gipaponafepifegugumuvo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6522/1028/files/sakebefuwuxevugir.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009ab7.bin
67b0b708df8f04a624ac5a365fe850e691abfbb096140441370d144ebff4e56a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB7 5080 bytes
font_01_sfnt_off0000ac25.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC25 1800 bytes
font_02_sfnt_off0000b4b3.bin
7e754c9c669a2c4a19c4b1d7d8d829f5362a215347943b2c553c1f473b2a96ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4B3 16332 bytes
font_03_sfnt_off0000e81b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE81B 4324 bytes

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