91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2

General

Target

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
Size

152KB
MD5

b1de7054abb241346032fd9f7ece5ade
SHA1

e90bed8fbbc09b46e7b30daecd389e904bcdbf4c
SHA256

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2
SHA512

183a160aef5ce84ea9803950c5cc588fc55445e98257b57d3170cfcfbf272beeeb95f4ee225dc52083ca7af0f0b907fced6c363afb68d1e43affdd25df4c7123
SSDEEP

1536:Em5NbGvNizYf/aFWIPNDGe8gy8a9fyEeVmgbmOoirBOGbAShbqkSZZZ3gURD8ibv:H7YfIDZ8gy8WXamkmOx3bVDUNRD5byFA

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	msiexec.exe

UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msiexec.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" msiexec.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	msiexec.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1255970050 = "C:\\PROGRA~3\\msoohfyy.exe"	msiexec.exe

Blocklisted process makes network request 18 IoCs

Processes:

msiexec.exe

flow	pid	process
2	748	msiexec.exe
3	748	msiexec.exe
4	748	msiexec.exe
6	748	msiexec.exe
7	748	msiexec.exe
8	748	msiexec.exe
9	748	msiexec.exe
11	748	msiexec.exe
13	748	msiexec.exe
15	748	msiexec.exe
16	748	msiexec.exe
17	748	msiexec.exe
18	748	msiexec.exe
19	748	msiexec.exe
20	748	msiexec.exe
21	748	msiexec.exe
22	748	msiexec.exe
23	748	msiexec.exe

Disables taskbar notifications via registry modification
evasion

Suspicious use of SetThreadContext 1 IoCs

Processes:

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe

description	pid	process	target process
PID 1712 set thread context of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File opened for modification C:\PROGRA~3\msoohfyy.exe msiexec.exe

description	ioc	process
File opened for modification	C:\PROGRA~3\msoohfyy.exe	msiexec.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exemsiexec.exe

pid	process
1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
748	msiexec.exe
748	msiexec.exe

Suspicious behavior: MapViewOfSection 25 IoCs

Processes:

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exemsiexec.exe

pid	process
1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe
748	msiexec.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

msiexec.exe

pid process

748 msiexec.exe

pid	process
748	msiexec.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exemsiexec.exe

description	pid	process
Token: SeDebugPrivilege	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
Token: SeBackupPrivilege	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
Token: SeRestorePrivilege	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
Token: SeDebugPrivilege	748	msiexec.exe
Token: SeBackupPrivilege	748	msiexec.exe
Token: SeRestorePrivilege	748	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe

description	pid	process	target process
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1712 wrote to memory of 1988	1712	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe
PID 1988 wrote to memory of 748	1988	91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
"C:\Users\Admin\AppData\Local\Temp\91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1712

C:\Users\Admin\AppData\Local\Temp\91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe
"C:\Users\Admin\AppData\Local\Temp\91e31bf14a0bcdf34521bd5b4720fea821c83abc3f5dd64b683128180d38c3d2.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\SysWOW64\msiexec.exe
C:\Windows\SysWOW64\msiexec.exe
3⤵
- Modifies visiblity of hidden/system files in Explorer
- UAC bypass
- Adds policy Run key to start application
- Blocklisted process makes network request
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:748

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/748-63-0x0000000000000000-mapping.dmp

Download
memory/748-66-0x0000000000510000-0x0000000000524000-memory.dmp

Filesize
80KB

Download
memory/748-67-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download
memory/1712-60-0x0000000000230000-0x0000000000235000-memory.dmp

Filesize
20KB

Download
memory/1988-54-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1988-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1988-56-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1988-59-0x00000000004016C3-mapping.dmp

Download
memory/1988-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1988-61-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1988-62-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download
memory/1988-65-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads