69fc2c605ffc41b7d121426cc8a48421aa0f04915331d491cef3ad48b78cc3fa

Analysis

max time kernel
142s
max time network
146s
platform
windows10_x64
resource
win10v20201028
submitted
15-03-2021 09:51

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General

Target

1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
Size

124KB
MD5

05e1bf4b590ce76c4bfef4d85cb6aacb
SHA1

dafdaf22044c3e132bed4266c192f0f5a089949e
SHA256

1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629
SHA512

3dd5e3eae645cc46ede187f55240cebba331398f510719e47c1a48c3671996ef34139bcb54ccf72871d8565319252505cf1fd6da439a25d21f91e5d39c2762bf

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

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\774720398 = "C:\\PROGRA~3\\mslham.exe"	msiexec.exe

Blocklisted process makes network request 13 IoCs

flow	pid	Process
23	196	msiexec.exe
24	196	msiexec.exe
25	196	msiexec.exe
25	196	msiexec.exe
25	196	msiexec.exe
25	196	msiexec.exe
28	196	msiexec.exe
29	196	msiexec.exe
30	196	msiexec.exe
32	196	msiexec.exe
33	196	msiexec.exe
34	196	msiexec.exe
36	196	msiexec.exe

Disables taskbar notifications via registry modification
evasion

Deletes itself 1 IoCs

pid	Process
196	msiexec.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\PROGRA~3\259301046	msiexec.exe
File opened for modification	C:\PROGRA~3\mslham.exe	msiexec.exe
File created	C:\PROGRA~3\mslham.exe	msiexec.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
196	msiexec.exe
196	msiexec.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	196	msiexec.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 196	640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	78
PID 640 wrote to memory of 196	640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	78
PID 640 wrote to memory of 196	640	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	78

C:\Users\Admin\AppData\Local\Temp\1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
"C:\Users\Admin\AppData\Local\Temp\1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:640
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\system32\msiexec.exe"
  2⤵
  - Adds policy Run key to start application
  - Blocklisted process makes network request
  - Deletes itself
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:196

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/196-7-0x0000000000FC0000-0x0000000000FD2000-memory.dmp

Filesize
72KB

Download
memory/196-9-0x0000000004D95000-0x0000000004D9F000-memory.dmp

Filesize
40KB

Download
memory/196-10-0x0000000004D91000-0x0000000004D95000-memory.dmp

Filesize
16KB

Download
memory/640-3-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/640-2-0x00000000001E0000-0x00000000001E9000-memory.dmp

Filesize
36KB

Download
memory/640-5-0x0000000002255000-0x000000000225F000-memory.dmp

Filesize
40KB

Download
memory/640-4-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download