Malicious PDF — malware analysis report

Static analysis result for SHA-256 abdc3bc2e8092040…

MALICIOUS

PDF

77.6 KB Created: 2021-03-17 13:08:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 061835bae99145064a055e484fb8784f SHA-1: 13cbbfaf5177d0de69752d125fbe8be6d4a10169 SHA-256: abdc3bc2e809204075298981238518b973b6509b673c6a3450c49c6f5a552c04
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating phishing and trojan characteristics. The embedded URL points to a domain that appears to be a lure, attempting to trick users into clicking by mimicking a search result. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/wix?keyword=american+girl+doll+horse+trailer
    • https://cdn-cms.f-static.net/uploads/4376375/normal_5fe7fd7a7f81a.pdf
    • https://cdn-cms.f-static.net/uploads/4487381/normal_60196ed8c3ec1.pdf
    • https://static.s123-cdn-static.com/uploads/4471235/normal_5fcb57fe4e48e.pdf
    • https://pejoguroboxifuj.weebly.com/uploads/1/3/1/6/131637830/5564998.pdf
    • https://feroxetisilujux.weebly.com/uploads/1/3/1/4/131409167/b33e306be8672.pdf
    • https://rakositove.weebly.com/uploads/1/3/4/5/134595637/0f1fe193534a.pdf
    • https://cdn-cms.f-static.net/uploads/4365635/normal_6016d2601281b.pdf
    • https://fitelibisubun.weebly.com/uploads/1/3/3/9/133987071/lovabigevupid.pdf
    • https://cdn-cms.f-static.net/uploads/4465538/normal_601b8cbd7dcb4.pdf
    • http://zeraseb.66ghz.com/maziwulejuganek.pdf
    • https://zunenevalomedo.weebly.com/uploads/1/3/4/8/134855990/bevekis_supusi.pdf
    • http://xukejufivakege.iblogger.org/27689935.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://suvumudupese.epizy.com/fojuku.pdf
    • https://s3.amazonaws.com/winumigutam/ds2_resonant_weapon_vs_dark_weapon.pdf
    • http://dosevidi.rf.gd/bayonetta_2_switch.pdf
    • https://s3.amazonaws.com/dipafuxe/21342685572.pdf
    • https://s3.amazonaws.com/loxopudizus/dell_755_drivers_audio.pdf
    • http://fosadexovoz.epizy.com/725571162.pdf
    • http://sodokeb.epizy.com/essays_of_warren_buffett_latest_edition.pdf
    • http://pepebejawu.epizy.com/41075492769.pdf
    • http://javajese.epizy.com/1334994527.pdf
    • http://xotewewo.rf.gd/disgaea_1_ps4_trophy_guide.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_off0000f028.bin
efffc05fade5502b677a08722af523598ee3a1085e3ef5976b3e42890d9171e2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF028 5340 bytes
font_01_sfnt_off00010220.bin
eef5156c5299d3dac0bdb56f429ac03a2a89f898e65423d1ef8e6026fdc5dbd5
pdf-font-stream PDF embedded font (sfnt) at offset 0x10220 11032 bytes