guloader | b6a5ea0d3e52c73c251ffe2da4955816885c20c3ad67d3f243544fd7b9b7e55d

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General

Target

New Order_pdf_0016534325.txz.rar
Size

1.4MB
Sample

250205-sj53estlcl
MD5

7e4c9587fcd16f21892e9414a88d752a
SHA1

c8328effbf06bb6277cc728781921bb35930daf0
SHA256

b6a5ea0d3e52c73c251ffe2da4955816885c20c3ad67d3f243544fd7b9b7e55d
SHA512

e0a914d21f2bb7bd7359cd46d44f1bb538b042774f6f519f428263e890bd5f2611a27b7e68ced960d6c3aeb960bb366c810fd33a2949c051172c5ed42143023e
SSDEEP

24576:4kYgi1qQ1DSDcgJZLU5Y9KWLcq7JxHmZbkYBDdjTrnooZYBr/6gBxYdTRSjpXi2h:4pnQQpCcgJi5iKWAq7JxHcpVdHrnoACl

Score

10^/10

Malware Config

Targets

- Target
  
  New Order_pdf_0016534325.exe
- Size
  
  821KB
- MD5
  
  bfe6e7e0438a127b3445d7a8afeab19b
- SHA1
  
  17438838d7e95188d4d2ea65de07dc6005ab21be
- SHA256
  
  004a0e7dcc10446f8dffdf3474ee862f951850063bdf94e1fbfb81780597c0cd
- SHA512
  
  9585eaabb3652bb83bea3e32de326acf3af0e5ca437afbc9ea7a9821b199a33e65a5be9336ed204035ae97bb13b137d70b2e4ab7d9b567008e68d61a7d0a9f44
- SSDEEP
  
  24576:Q4nbY9dZZZZZZZZZZyaimgedJPY8nYRAZOjhgvvV3HQmhQ436/zJ:Q+qZZZZZZZZZZ1Ied9YjRAIavv1wzq6t
Score

10^/10

discovery guloader collection defense_evasion downloader evasion spyware stealer trojan
- Guloader family
  guloader
- Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Modifies Windows Defender DisableAntiSpyware settings
  evasion trojan
- Disables Task Manager via registry modification
  defense_evasion
- Loads dropped DLL
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses Microsoft Outlook profiles
  collection
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2
- Target
  
  $PLUGINSDIR/System.dll
- Size
  
  12KB
- MD5
  
  d6f54d2cefdf58836805796f55bfc846
- SHA1
  
  b980addc1a755b968dd5799179d3b4f1c2de9d2d
- SHA256
  
  f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9
- SHA512
  
  ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db
- SSDEEP
  
  192:acA1YOTDExj7EFrYCT4E8y3hoSdtTgwF43E7QbGPXI9uIc6w79Mw:RR7SrtTv53tdtTgwF4SQbGPX36wJMw
Score

3^/10

discovery
behavioral3 behavioral4
- Target
  
  New Order_pdf_006534325.exe
- Size
  
  809KB
- MD5
  
  502a5d91b19d266d46f6bf270a3ce0c8
- SHA1
  
  1af86349a3c21d061baaf83bc5c7574ca85330af
- SHA256
  
  7f2ad4dae501f03a420ec1971af3a5ebe539d7c3430dd632bb4dfa614aa82207
- SHA512
  
  114232bcd480d72642688731cf8e4d2839266c5966c6ed5aaab0982ef42057d7e4ea707e0fd97f2c1124e0cd85ab9f32de4f27d8d5bb3e1eca5ee2c25ce314de
- SSDEEP
  
  24576:Q4nbY9dZZZZZZZZZZyNag3sXrEMvvV3HQmhQ436/zc:Q+qZZZZZZZZZZyX3Invv1wzq6A
Score

10^/10

discovery guloader collection defense_evasion downloader evasion spyware stealer trojan
- Guloader family
  guloader
- Guloader,Cloudeye
  A shellcode based downloader first seen in 2020.
  downloader guloader
- Modifies Windows Defender DisableAntiSpyware settings
  evasion trojan
- Disables Task Manager via registry modification
  defense_evasion
- Loads dropped DLL
- Reads user/profile data of local email clients
  Email clients store some user data on disk where infostealers will often target it.
  spyware stealer
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Accesses Microsoft Outlook profiles
  collection
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral5 behavioral6
- Target
  
  $PLUGINSDIR/System.dll
- Size
  
  12KB
- MD5
  
  d6f54d2cefdf58836805796f55bfc846
- SHA1
  
  b980addc1a755b968dd5799179d3b4f1c2de9d2d
- SHA256
  
  f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9
- SHA512
  
  ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db
- SSDEEP
  
  192:acA1YOTDExj7EFrYCT4E8y3hoSdtTgwF43E7QbGPXI9uIc6w79Mw:RR7SrtTv53tdtTgwF4SQbGPX36wJMw
Score

3^/10

discovery
behavioral7 behavioral8