Malicious PDF — malware analysis report

Static analysis result for SHA-256 61abd476f1292aa6…

MALICIOUS

PDF

105.6 KB Created: 2021-02-12 16:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11d31ced93b4a5a494b99f9c9de42a3a SHA-1: 16d8ecb5c957bf1cd3f5c72335228584bdc8b384 SHA-256: 61abd476f1292aa6002e4016f64d3b88efddfdc2a7e8d4e8af55fb46216c218d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. It contains an embedded URI pointing to 'https://bologen.ru/wix?keyword=social+issues+list+in+india', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to 'social issues list in india'. No scripts were extracted, but the presence of external URLs and the overall detection profile strongly suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wix?keyword=social+issues+list+in+india
    • https://cdn-cms.f-static.net/uploads/4387939/normal_601b6c621402c.pdf
    • http://swiss-gear.shop/92743552878lqdx4.pdf
    • https://cdn-cms.f-static.net/uploads/4407100/normal_600fa9d9dcb85.pdf
    • http://tameenegypt.com/ghost_hunters_staffel_3_deutsch_streamn6v2t.pdf
    • https://cdn-cms.f-static.net/uploads/4412165/normal_5fd27e24e39ad.pdf
    • https://static.s123-cdn-static.com/uploads/4421461/normal_5ff1f6ee0c623.pdf
    • http://samelike.site/interactive_lapbook_templatesywfbp.pdf
    • https://static.s123-cdn-static.com/uploads/4476148/normal_5ffc138db664f.pdf
    • https://static.s123-cdn-static.com/uploads/4390660/normal_5ffd63a60e2ff.pdf
    • http://degitowexara.iblogger.org/sheet_music_barcarolle_offenbach.pdf
    • http://malitaludim.iblogger.org/dragon_city_guide_heroic_race_high_eternal.pdf
    • http://itfamily.info/zaxipafurofikavokera0z9c.pdf
    • https://cdn-cms.f-static.net/uploads/4477387/normal_5fe809d01d5de.pdf
    • http://xivitej.66ghz.com/88330003160.pdf
    • https://static.s123-cdn-static.com/uploads/4446270/normal_60086b7f4b9e1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pulilubanis.rf.gd/31661999530.pdf
    • http://najorenowodume.epizy.com/ennum_ennum_azhakarnnu_viriyunna_album_song.pdf
    • http://doluxefewofelex.epizy.com/durorujezerivor.pdf
    • http://lamiredej.epizy.com/kitujas.pdf
    • http://wulitebajanuba.rf.gd/brushless_motor_design_book.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001649b.bin
4efbc5a6839b954645424315c49e36cf8da5727876c0fb4cc0c70dc6d6818c97
pdf-font-stream PDF embedded font (sfnt) at offset 0x1649B 4940 bytes
font_01_sfnt_off00017575.bin
f106e277b49936b8bf95e5c477ca913bd79c0236be81e568a7384520e9b063a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x17575 10416 bytes