Resubmissions
14-10-2024 14:49
241014-r67zvsvaqq 1016-08-2024 15:07
240816-sheh3svenq 1016-08-2024 14:46
240816-r5jkwazgpa 10Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
16-08-2024 14:46
Behavioral task
behavioral1
Sample
GangBeasts.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
GangBeasts.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
Built.exe
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
Built.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
Gang Beasts.exe
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
Gang Beasts.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
kosomk.exe
Resource
win7-20240729-en
Behavioral task
behavioral8
Sample
kosomk.exe
Resource
win10v2004-20240802-en
General
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Target
kosomk.exe
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Size
23KB
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MD5
926e2c78bcea51e5309db037b18b4202
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SHA1
d4b80f95bfdc9c2ff860ac0cc2012a81b425801d
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SHA256
1d74f423f423175189fbe07b34697cae04d6d48181efbed5c3b790a137145f10
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SHA512
6962876b91bcf7d40d9250dde094ce560f3b3c7a4766ac5e810d27de46cd4167937042d5ae94b21f21a1b19dc4c39dc0107e2aac1fbcd17680345f2fe06354a1
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SSDEEP
384:Ac6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZ0k:/IU0tw3RpcnuK
Malware Config
Extracted
njrat
0.7d
kosomk 555
dovelabobzgnan.ddns.net:5552
a8c0d4cf5cfc2cc1149b5e071c2ab5df
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reg_key
a8c0d4cf5cfc2cc1149b5e071c2ab5df
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2848 netsh.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a8c0d4cf5cfc2cc1149b5e071c2ab5df.exe dicsord.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a8c0d4cf5cfc2cc1149b5e071c2ab5df.exe dicsord.exe -
Executes dropped EXE 1 IoCs
pid Process 2124 dicsord.exe -
Loads dropped DLL 1 IoCs
pid Process 2384 kosomk.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\a8c0d4cf5cfc2cc1149b5e071c2ab5df = "\"C:\\Users\\Admin\\AppData\\Roaming\\dicsord.exe\" .." dicsord.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a8c0d4cf5cfc2cc1149b5e071c2ab5df = "\"C:\\Users\\Admin\\AppData\\Roaming\\dicsord.exe\" .." dicsord.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language kosomk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dicsord.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe Token: 33 2124 dicsord.exe Token: SeIncBasePriorityPrivilege 2124 dicsord.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2384 wrote to memory of 2124 2384 kosomk.exe 30 PID 2384 wrote to memory of 2124 2384 kosomk.exe 30 PID 2384 wrote to memory of 2124 2384 kosomk.exe 30 PID 2384 wrote to memory of 2124 2384 kosomk.exe 30 PID 2124 wrote to memory of 2848 2124 dicsord.exe 32 PID 2124 wrote to memory of 2848 2124 dicsord.exe 32 PID 2124 wrote to memory of 2848 2124 dicsord.exe 32 PID 2124 wrote to memory of 2848 2124 dicsord.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\kosomk.exe"C:\Users\Admin\AppData\Local\Temp\kosomk.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Users\Admin\AppData\Roaming\dicsord.exe"C:\Users\Admin\AppData\Roaming\dicsord.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\dicsord.exe" "dicsord.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2848
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
23KB
MD5926e2c78bcea51e5309db037b18b4202
SHA1d4b80f95bfdc9c2ff860ac0cc2012a81b425801d
SHA2561d74f423f423175189fbe07b34697cae04d6d48181efbed5c3b790a137145f10
SHA5126962876b91bcf7d40d9250dde094ce560f3b3c7a4766ac5e810d27de46cd4167937042d5ae94b21f21a1b19dc4c39dc0107e2aac1fbcd17680345f2fe06354a1