69fc2c605ffc41b7d121426cc8a48421aa0f04915331d491cef3ad48b78cc3fa

Analysis

max time kernel
139s
max time network
133s
platform
windows7_x64
resource
win7v20201028
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 trojan

Malware Config

Signatures

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

Hidden Files and Directories
T1158

Modify Registry
T1112
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

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\1755664455 = "C:\\PROGRA~3\\msszqmln.exe"	msiexec.exe

Blocklisted process makes network request 19 IoCs

flow	pid	Process
4	1800	msiexec.exe
5	1800	msiexec.exe
6	1800	msiexec.exe
7	1800	msiexec.exe
9	1800	msiexec.exe
11	1800	msiexec.exe
12	1800	msiexec.exe
13	1800	msiexec.exe
14	1800	msiexec.exe
15	1800	msiexec.exe
16	1800	msiexec.exe
17	1800	msiexec.exe
18	1800	msiexec.exe
19	1800	msiexec.exe
20	1800	msiexec.exe
21	1800	msiexec.exe
22	1800	msiexec.exe
23	1800	msiexec.exe
24	1800	msiexec.exe

Disables taskbar notifications via registry modification
evasion

Deletes itself 1 IoCs

pid	Process
1800	msiexec.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\PROGRA~3\259321413	msiexec.exe
File opened for modification	C:\PROGRA~3\msszqmln.exe	msiexec.exe
File created	C:\PROGRA~3\msszqmln.exe	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
1800	msiexec.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe
1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	msiexec.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29
PID 1616 wrote to memory of 1800	1616	1048caa70a44f59a621e209cc10308256e7495a427245260469812ca1b710629.exe	29

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:1616
- 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:1800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

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/1616-2-0x00000000765A1000-0x00000000765A3000-memory.dmp

Filesize
8KB

Download
memory/1616-4-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1616-3-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/1616-5-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/1616-6-0x00000000020D5000-0x00000000020DE000-memory.dmp

Filesize
36KB

Download
memory/1800-9-0x0000000000FF0000-0x0000000001004000-memory.dmp

Filesize
80KB

Download
memory/1800-11-0x0000000000C65000-0x0000000000C6E000-memory.dmp

Filesize
36KB

Download
memory/1800-12-0x0000000000C61000-0x0000000000C65000-memory.dmp

Filesize
16KB

Download
memory/1800-13-0x00000000028E0000-0x00000000028F1000-memory.dmp

Filesize
68KB

Download
memory/1800-14-0x0000000002B40000-0x0000000002B51000-memory.dmp

Filesize
68KB

Download
memory/1800-15-0x0000000002B40000-0x0000000002B51000-memory.dmp

Filesize
68KB

Download