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 2 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
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\2301 = "c:\\progra~3\\mszpepep.exe"	msiexec.exe

Blocklisted process makes network request 12 IoCs

Processes:

msiexec.exe

flow	pid	process
2	944	msiexec.exe
3	944	msiexec.exe
5	944	msiexec.exe
7	944	msiexec.exe
10	944	msiexec.exe
11	944	msiexec.exe
12	944	msiexec.exe
13	944	msiexec.exe
14	944	msiexec.exe
15	944	msiexec.exe
16	944	msiexec.exe
17	944	msiexec.exe

UPX packed file 1 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2000-61-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

msiexec.exe

pid process

944 msiexec.exe

pid	process
944	msiexec.exe

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
behavioral1/memory/2000-61-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

description	pid	process	target process
PID 2000 set thread context of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File created \??\c:\progra~3\mszpepep.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
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

pid process

1992 4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
944 msiexec.exe
944 msiexec.exe

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

Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

pid	process
1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
944	msiexec.exe
944	msiexec.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

msiexec.exe

description pid process

Token: SeDebugPrivilege 944 msiexec.exe

description	pid	process
Token: SeDebugPrivilege	944	msiexec.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exemsiexec.exe

description	pid	process	target process
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 2000 wrote to memory of 1992	2000	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 1992 wrote to memory of 944	1992	4e66403a14ee87c5b62f4bfbb511ea97dcb025ff83046396e19a68010a1504c4.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	msiexec.exe	msiexec.exe
PID 944 wrote to memory of 1660	944	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:2000
- 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:1992
- - 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
    - Deletes itself
    - Drops file in Program Files directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:944
  - - C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      4⤵
      PID:1660

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

memory/944-64-0x0000000000000000-mapping.dmp

Download
memory/944-71-0x000000007EFA0000-0x000000007EFA6000-memory.dmp

Filesize
24KB

Download
memory/944-68-0x000000007EFA0000-0x000000007EFA6000-memory.dmp

Filesize
24KB

Download
memory/944-67-0x00000000000D0000-0x00000000000D7000-memory.dmp

Filesize
28KB

Download
memory/944-66-0x0000000000D10000-0x0000000000D34000-memory.dmp

Filesize
144KB

Download
memory/1660-69-0x0000000000000000-mapping.dmp

Download
memory/1992-57-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1992-63-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1992-60-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1992-58-0x0000000000401B0E-mapping.dmp

Download
memory/1992-55-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2000-61-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2000-54-0x0000000074E11000-0x0000000074E13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads