MALICIOUS — 4cd51e_c33522842398443fa91db6fc253815cf.pdf
MALICIOUS — 4cd51e_c33522842398443fa91db6fc253815cf.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (89/100). 3 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
fd442d9ef52c2934b5a351af9d7fa191dc170a00a40d3c8096d319e57280ded3 - SHA-1:
f3085e69360277f88821db6d5fad89a945e96c4d - MD5:
fef7d7f81c354a092df080287856b2fc - ssdeep:
768:zgGzpDzQgaZZ6k2z/a0AFTfFkXTPnm+St+O5uMltW:MGFnkSz7AFTfUDvLuuMltW - TLSH:
T17E307DF31097EC8C7ACA9F0399AB215D7586C28DA1229AB445D8332CC47C6ED6F50572 - Submitted as: 4cd51e_c33522842398443fa91db6fc253815cf.pdf
- File type: pdf · Size: 37423 bytes
- Verdict: malicious (89/100)
Detections (3 of 54 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.PDF.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 89/100 is the fusion of 8 weighted signals:
- Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule
PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged HEUR:Trojan.PDF.Agent.gen (rule
HEUR:Trojan.PDF.Agent.gen) - engine signal, weight 0.55, confidence 0.85 - MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule
high-entropy-blob) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: https://ttraff.cc/wix?keyword=nba+2k16+apk+ios+free, http://povuru.clinmicrolab.org/uploads/1/3/2/3/132302966/8075290.pdf, http://files.dukeoptilab.org/uploads/1/3/1/0/131070317/9195687.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Contacted 6 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (17 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
1020 behavior events · 0 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- searchapp.bundleassets.example
- teams.cloud.microsoft
- outlook.office.com
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcb.com/rb.crl
- 23.40.52.209
- 192.168.122.108
- 74.179.77.204 US · Moses Lake · AS8075 Microsoft Corporation
- 52.123.252.216 AU · Sydney · AS8075 Microsoft Corporation
- 52.123.128.14 US · Redmond · AS8075 Microsoft Corporation
- 172.66.2.5 US · San Francisco · AS13335 Cloudflare, Inc.
- 23.214.54.132
- 135.232.92.34 US · Boydton · AS8075 Microsoft Limited
- 40.126.14.164
- 224.0.0.252
- 192.168.122.1
Dropped files
- root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ttraff.cc/wix?keyword=nba+2k16+apk+ios+free
- http://povuru.clinmicrolab.org/uploads/1/3/2/3/132302966/8075290.pdf
- http://files.dukeoptilab.org/uploads/1/3/1/0/131070317/9195687.pdf
- http://mefomi.sfghosthunt.com/uploads/1/3/1/8/131856643/fuburatomidapof-polanunasa-tufuzikudowugip-boniw.pdf
- http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.pdf
- http://fapudug.anngenuity.com/uploads/1/3/2/6/132681670/dilolofu-benalivosefi-rufuruvozan-xekinimukajilap.pdf
- http://files.landladyprosvcs.com/uploads/1/3/0/7/130740196/6484010.pdf
- http://juwix.integralequine.com.au/uploads/1/3/1/1/131164312/zazilimato_zanafin_mixagijizajuti.pdf
- http://files.drinkgreatteamarketplace.com/uploads/1/3/2/6/132695574/2786406.pdf
- http://jasuj.spirehomeinspection.net/uploads/1/3/0/7/130738546/kulir.pdf
- https://42ffb77e-e5e7-4f78-b920-65517ee98b37.filesusr.com/ugd/c79b1c_cb65db25b79b426d943dece043c7740e.pdf?index=true
- https://08e9a0cb-98d7-43e6-afca-dac049ecaf0a.filesusr.com/ugd/a91264_23985fc27e814862ae7ded2aea6171b2.pdf?index=true
- https://4e3232b2-26d2-4b8e-b8c4-5defc0cc80d1.filesusr.com/ugd/0582e0_9da4980fe846496eb3aa43eb4d9e96ea.pdf?index=true
- https://7586dd0c-933e-49b8-84e9-800d0f7e0120.filesusr.com/ugd/067ecb_66cbea3412ad4750b33541c5183100a4.pdf?index=true
- https://1c5456dd-9fae-4c8d-88b4-5bf0639e79ab.filesusr.com/ugd/b148e5_d99ff2668b85405f9b6b5e99aeec9ad0.pdf?index=true
- https://8a892f84-fc96-4baa-8ca5-d835c1f8378c.filesusr.com/ugd/e3325f_2356872449f346b6bec17da9127c2174.pdf?index=true
- https://eec1d889-bf61-4be7-856c-d2a9fc091142.filesusr.com/ugd/f95141_e17e20c50b7d4025b5894e5ef722c2ed.pdf?index=true
- 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://www.msftconnecttest.com/connecttest.txt
- http://rb.symcb.com/rb.crl
Embedded domains
- ttraff.cc
- povuru.clinmicrolab.org
- files.dukeoptilab.org
- mefomi.sfghosthunt.com
- files.batrssocal.com
- fapudug.anngenuity.com
- files.landladyprosvcs.com
- juwix.integralequine.com.au
- files.drinkgreatteamarketplace.com
- jasuj.spirehomeinspection.net
- 42ffb77e-e5e7-4f78-b920-65517ee98b37.filesusr.com
- 08e9a0cb-98d7-43e6-afca-dac049ecaf0a.filesusr.com
- 4e3232b2-26d2-4b8e-b8c4-5defc0cc80d1.filesusr.com
- 7586dd0c-933e-49b8-84e9-800d0f7e0120.filesusr.com
- 1c5456dd-9fae-4c8d-88b4-5bf0639e79ab.filesusr.com
- 8a892f84-fc96-4baa-8ca5-d835c1f8378c.filesusr.com
- eec1d889-bf61-4be7-856c-d2a9fc091142.filesusr.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 74.179.77.204
- 52.123.252.216
- 52.123.128.14
- 172.66.2.5
- 135.232.92.34
- 162.159.36.2
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report