51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47

Analysis

max time kernel
205s
max time network
171s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
28/11/2022, 06:17

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General

Target

51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe
Size

137KB
MD5

3c8af02d8cf7c13d1d78aa881f3ea5f6
SHA1

0dca9181c3aa0d6ee1d418d880eaa7c3bab260ab
SHA256

51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47
SHA512

d0e9c06bfc722e87d794a39ec5f7c835a76c2757baba2f265cec193cec3eeb89c579227d3f1a2659d3be0d42d4cf779d88bce0352fa9e2cbc42e2a3b570b70b0
SSDEEP

1536:TfWKzKQtOjLZO8I6jocPbs14PDe+xzE31zlS/aEO8O/ESMCFacmqZFOh/UWlyNSm:Tf0O8Isb5+31zlS/FO8O1bF+q7XWw7

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

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

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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\1896727531 = "C:\\ProgramData\\msbefxvur.exe"	msiexec.exe

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	528	msiexec.exe

Deletes itself 1 IoCs

pid	Process
528	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe
528	msiexec.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe
1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	msiexec.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28
PID 1104 wrote to memory of 528	1104	51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe	28

C:\Users\Admin\AppData\Local\Temp\51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe
"C:\Users\Admin\AppData\Local\Temp\51fde119bdfa2d38b127360991a54c56c421b81e69ad7bc5761110172ff25a47.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\system32\msiexec.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Adds policy Run key to start application
  - Blocklisted process makes network request
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/528-59-0x0000000000FE0000-0x0000000000FF4000-memory.dmp

Filesize
80KB

Download
memory/528-61-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download
memory/528-60-0x0000000000090000-0x0000000000096000-memory.dmp

Filesize
24KB

Download
memory/528-62-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download
memory/1104-54-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1104-55-0x0000000074FA1000-0x0000000074FA3000-memory.dmp

Filesize
8KB

Download
memory/1104-56-0x000000007EF90000-0x000000007EF96000-memory.dmp

Filesize
24KB

Download