4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4

General

Target

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
Size

331KB
MD5

6d0e4c5ef82e34b53b10552094a5f274
SHA1

c081c29c5ea4e1dd29d39c533c2fc50edb5a1287
SHA256

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4
SHA512

cdba1676ca6f79d082602a2ed3111879154f9f2bba8e221e8520bbdc642514915926aac8c4f55832039ba842aef1296aac7293aba6ad4ba5ac95019fcf54af87

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 5 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\sharedaccess\parameters\firewallpolicy\standardprofile\authorizedapplications\list	msiexec.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\standardprofile	msiexec.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\authorizedapplications	msiexec.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\authorizedapplications\list	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\authorizedapplications\list\C:\Windows\SysWOW64\msiexec.exe = "C:\\Windows\\SysWOW64\\msiexec.exe:*:Enabled:Windows Installer"	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\11260 = "c:\\progra~3\\msreata.exe"	msiexec.exe

Blocklisted process makes network request 3 IoCs

Processes:

msiexec.exe

flow pid process

12 1740 msiexec.exe
57 1740 msiexec.exe
63 1740 msiexec.exe

flow	pid	process
12	1740	msiexec.exe
57	1740	msiexec.exe
63	1740	msiexec.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4100-130-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/4100-135-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
\??\c:\progra~3\msreata.exe	upx

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/4100-135-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

description	pid	process	target process
PID 4100 set thread context of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File created \??\c:\progra~3\msreata.exe msiexec.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	\??\c:\progra~3\msreata.exe	msiexec.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

pid	process
2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
1740	msiexec.exe
1740	msiexec.exe
1740	msiexec.exe
1740	msiexec.exe

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

pid	process
2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
1740	msiexec.exe
1740	msiexec.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

msiexec.exe

description pid process

Token: SeDebugPrivilege 1740 msiexec.exe

description	pid	process
Token: SeDebugPrivilege	1740	msiexec.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

description	pid	process	target process
PID 4100 wrote to memory of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 4100 wrote to memory of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 4100 wrote to memory of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 4100 wrote to memory of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 4100 wrote to memory of 2316	4100	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2316 wrote to memory of 1740	2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 2316 wrote to memory of 1740	2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 2316 wrote to memory of 1740	2316	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1740 wrote to memory of 672	1740	msiexec.exe	msiexec.exe
PID 1740 wrote to memory of 672	1740	msiexec.exe	msiexec.exe
PID 1740 wrote to memory of 672	1740	msiexec.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
"C:\Users\Admin\AppData\Local\Temp\4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4100
- C:\Users\Admin\AppData\Local\Temp\4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
  "C:\Users\Admin\AppData\Local\Temp\4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\SysWOW64\msiexec.exe
    3⤵
    - Modifies firewall policy service
    - 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 use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1740
  - - C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      4⤵
      PID:672

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

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

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\progra~3\msreata.exe

Filesize
331KB

MD5
6d0e4c5ef82e34b53b10552094a5f274

SHA1
c081c29c5ea4e1dd29d39c533c2fc50edb5a1287

SHA256
4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4

SHA512
cdba1676ca6f79d082602a2ed3111879154f9f2bba8e221e8520bbdc642514915926aac8c4f55832039ba842aef1296aac7293aba6ad4ba5ac95019fcf54af87

Download Submit
memory/672-141-0x0000000000000000-mapping.dmp

Download
memory/1740-138-0x00000000007B0000-0x00000000007D2000-memory.dmp

Filesize
136KB

Download
memory/1740-143-0x000000007F510000-0x000000007F516000-memory.dmp

Filesize
24KB

Download
memory/1740-140-0x000000007F510000-0x000000007F516000-memory.dmp

Filesize
24KB

Download
memory/1740-136-0x0000000000000000-mapping.dmp

Download
memory/1740-139-0x0000000000310000-0x0000000000317000-memory.dmp

Filesize
28KB

Download
memory/2316-134-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2316-137-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2316-132-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2316-131-0x0000000000000000-mapping.dmp

Download
memory/4100-135-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/4100-130-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads