MALICIOUS — normal_5f872b44984b4.pdf
MALICIOUS — normal_5f872b44984b4.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (86/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
f79364bcab91a86dac8f538dc7b996c229ef4f0238f5ce8e50a054ad2dd09128 - SHA-1:
465080e2fd7eeefd96fe8b8d8037f10251353821 - MD5:
0bbc1b8727cf549ecb475a05980d881b - ssdeep:
768:2egGzpD/pM9UVs+X2BP/YwULlMpZVf42f8G4GQz2AIHGNyhsjyLFPC/3184UzgYS:EGFLpYNg5lv2+NyhRZPCtxUzghL - TLSH:
T1E5338CF340A3DD4C7ACB9F53AEB6255851899B88B132E7900589762DD0BC7BE3F01A50 - Submitted as: normal_5f872b44984b4.pdf
- File type: pdf · Size: 49688 bytes
- Verdict: malicious (86/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 86/100 is the fusion of 7 weighted signals:
- Memory forensics: 4 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 8264) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 17 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/9ff43fa4-aa53-4920-9c55-2eaddb85fb93/427018970.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/123?keyword=se%25C3%25B1ales+de+seguridad+pdf, https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/sulifip_bimewu_wevobami_fivixibileso.pdf, https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/vulefebuz.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
- Extracted generic config (17 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9705 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
c15134ae19e0a65551df9dc814a3a3a7d0f1440f2abb5d93eb2bc3a3ece2b681 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\26095e779c8887f7fa61c4c209988c9d.png -
c0b34f3c4db2abba73caaeb3c8dbae10c8870b332da89109b9998636f90ed204 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/123?keyword=se%25C3%25B1ales+de+seguridad+pdf
- https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/sulifip_bimewu_wevobami_fivixibileso.pdf
- https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/vulefebuz.pdf
- https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/koviwa.pdf
- https://cdn-cms.f-static.net/uploads/4365555/normal_5f86f539eb7ab.pdf
- https://cdn-cms.f-static.net/uploads/4365627/normal_5f87276f0b1be.pdf
- https://uploads.strikinglycdn.com/files/9ff43fa4-aa53-4920-9c55-2eaddb85fb93/427018970.pdf
- https://uploads.strikinglycdn.com/files/60100f0e-5a8d-47a4-add4-90aa3907bc31/91050371663.pdf
- https://uploads.strikinglycdn.com/files/eedc5e3c-1665-4da6-b057-b41408be6c24/40972341836.pdf
- https://uploads.strikinglycdn.com/files/68256df1-da63-46a0-8916-15c697816922/45358029636.pdf
- https://uploads.strikinglycdn.com/files/652f5254-2024-4704-86fc-199398c08ec0/kufulikopikinunun.pdf
- https://uploads.strikinglycdn.com/files/c5a8d373-3aaa-4780-8e52-a4b07516802b/38328058443.pdf
- https://uploads.strikinglycdn.com/files/16721c88-0c46-4d51-9bf6-af9c54e0b7b7/56122469420.pdf
- https://cdn-cms.f-static.net/uploads/4366312/normal_5f870f96a12cd.pdf
- https://cdn-cms.f-static.net/uploads/4365660/normal_5f8705d6cd4df.pdf
- https://cdn-cms.f-static.net/uploads/4366028/normal_5f87053160cca.pdf
- https://cdn-cms.f-static.net/uploads/4366029/normal_5f86f8ee7c544.pdf
- https://cdn-cms.f-static.net/uploads/4366354/normal_5f8712736c92f.pdf
- https://site-1039404.mozfiles.com/files/1039404/josawigefatud.pdf
- https://site-1040259.mozfiles.com/files/1040259/rivizu.pdf
- https://site-1039769.mozfiles.com/files/1039769/7133172197.pdf
- https://site-1040386.mozfiles.com/files/1040386/kibapogiwowilamewitifipaw.pdf
- https://site-1037894.mozfiles.com/files/1037894/2151796699.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
Embedded domains
- cctraff.ru
- nudojafobedem.weebly.com
- boguvetasitob.weebly.com
- cdn-cms.f-static.net
- uploads.strikinglycdn.com
- site-1039404.mozfiles.com
- site-1040259.mozfiles.com
- site-1039769.mozfiles.com
- site-1040386.mozfiles.com
- site-1037894.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 52.148.114.188
- 20.184.175.21
- 20.42.73.25
- 20.89.1.11
- 52.110.12.48
- 52.110.12.24
- 4.230.171.124
- 40.84.85.40
- 74.178.76.54
- 52.123.128.14
- 40.99.134.18
- 13.89.179.12
- 135.233.45.223
- 74.178.232.29
- 203.26.79.13
- 92.223.78.30
- 142.250.183.35
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report