Malicious PDF — malware analysis report

Static analysis result for SHA-256 253d32b8df170afd…

MALICIOUS

PDF

106.2 KB Created: 2021-03-04 06:05:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 86a7e78d91f5d4c4680cc0303b504c04 SHA-1: 3a02a6aba47471c30cf310da4b17151dc0d1fc2e SHA-256: 253d32b8df170afde14ba0a64bc054862b08adaed3ca24709d948d9efe52b6e2
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 likelihood of malicious intent. The presence of embedded URLs, specifically 'https://fokemale.ru/wix?keyword=eid+adha+2015', suggests the document is designed to redirect users to a potentially harmful site. Although no scripts were explicitly extracted, the PDF format and embedded URLs are commonly used for phishing or malware distribution, aligning with the 'Spearphishing Attachment' technique.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/wix?keyword=eid+adha+2015 PDF link annotation
    • https://cdn.sqhk.co/kewukapugino/aidVoYj/flip_dunk_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/1AqqUiq/mini_ninjas_ps3_trophy_guide.pdfIn PDF document text
    • http://ch-bewertung-2888.xyz/36265472726o9j45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402722/normal_5fd84f2acf1fd.pdfIn PDF document text
    • http://keepxufi.space/kidde_kn-cosm-ibaca_false_alarmaoo81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449600/normal_5ffd460b3c5ea.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/xyKg1id/power_rangers_super_ninja_steel_episode_100.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/yjjgXjh/bright_download_filmyzilla.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449968/normal_6008e3ecf02fe.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/gjhlgdb/gumokobomiru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458854/normal_5fce85e225b97.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/iaEjiih/19495621576.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_601e4f04485da.pdfIn PDF document text
    • https://cdn.sqhk.co/fufitefan/Wighcex/vonopexexijekigikezuvib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://wefazerigibu.epizy.com/11297173535.pdfIn PDF document text
    • http://lazevemu.epizy.com/jomawirofofegupiluretik.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00016b3b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16B3B 19724 bytes
SHA-256: 8fc4a012b5995ec4991b656c75f05abbf6b54d2ff8317b35fbee7ad91492aecb
font_00_sfnt_off0000e6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A2 4376 bytes
SHA-256: 58d68b00b7e364e86ebaefdea587d960b7c5a18f41d6585eb20287d25fa8febf
font_01_sfnt_off0000f5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F4 5012 bytes
SHA-256: 7502173baab31385f7d3408d17ad18dbbeb8524bae4a2830861f165afc4c4770
font_02_sfnt_off00010703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10703 6060 bytes
SHA-256: 6985a2a32b8d8f85940d863db4d02a3a7f9f3f32bd3f0377ed8d3296aca02555
font_03_sfnt_off00011ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ADE 3792 bytes
SHA-256: 6fcebc2ace0001b092cd0e7afa23b88ec667f7099ecef994e39a2cf2220b1163
font_04_sfnt_off00012938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12938 2380 bytes
SHA-256: 1beb9903b765d1baaa8d14bfb33f0ad2e216ad7873e15decebe66538e3b835c5
font_05_sfnt_off00013421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13421 5452 bytes
SHA-256: 52c8c64c540dca5b1cb2097ffa6cc14cad5792dd04b2502e7a093af49903b8a7
font_06_sfnt_off00014731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14731 10460 bytes
SHA-256: 797fa71f058fd5eed80695beed77fb82932bf43c10b7d77157304512af76edf1
font_08_sfnt_off00018bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18BD5 3416 bytes
SHA-256: 9adf30817dbcef2b874756aa7d2a40c46f508dc447da394d215eee7769769246