a233b4b4782811424b0b5b166b0985417e834da2b776e72d3c7e5064dee1e9e5

General

Target

6e0fc3d593968917c8ed6ea577195296.exe
Size

970KB
MD5

6e0fc3d593968917c8ed6ea577195296
SHA1

b0225393df8ed257ade0d6cb95ca14f0a92f4ea4
SHA256

a233b4b4782811424b0b5b166b0985417e834da2b776e72d3c7e5064dee1e9e5
SHA512

1e92bc275a185c7faa4db5b02aef12f14d30389f0daa4951a1866cf789964eedd30e272016906f8037f27d2cd62bfa3c63ff7433752a7d78187b80d08d8f8503

Score

8^/10

discovery spyware stealer

Malware Config

Signatures

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

RuntimeBroker.exe

pid process

1888 RuntimeBroker.exe
Drops startup file 1 IoCs

Processes:

RuntimeBroker.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\new driver.lnk RuntimeBroker.exe
Loads dropped DLL 1 IoCs

Processes:

RegAsm.exe

pid process

280 RegAsm.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

6e0fc3d593968917c8ed6ea577195296.exe

description pid process target process

PID 1288 set thread context of 280 1288 6e0fc3d593968917c8ed6ea577195296.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1888	RuntimeBroker.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\new driver.lnk	RuntimeBroker.exe

pid	process
280	RegAsm.exe

description	pid	process	target process
PID 1288 set thread context of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

280 RegAsm.exe
280 RegAsm.exe
280 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exeRuntimeBroker.exe

description pid process

Token: SeDebugPrivilege 280 RegAsm.exe
Token: 35 1888 RuntimeBroker.exe

pid	process
280	RegAsm.exe
280	RegAsm.exe
280	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	280	RegAsm.exe
Token: 35	1888	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

6e0fc3d593968917c8ed6ea577195296.exeRegAsm.exe

description	pid	process	target process
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 1288 wrote to memory of 280	1288	6e0fc3d593968917c8ed6ea577195296.exe	RegAsm.exe
PID 280 wrote to memory of 1888	280	RegAsm.exe	RuntimeBroker.exe
PID 280 wrote to memory of 1888	280	RegAsm.exe	RuntimeBroker.exe
PID 280 wrote to memory of 1888	280	RegAsm.exe	RuntimeBroker.exe
PID 280 wrote to memory of 1888	280	RegAsm.exe	RuntimeBroker.exe

C:\Users\Admin\AppData\Local\Temp\6e0fc3d593968917c8ed6ea577195296.exe
"C:\Users\Admin\AppData\Local\Temp\6e0fc3d593968917c8ed6ea577195296.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1288

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
#cmd
2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:280

C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
"C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
PID:1888

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
MD5
d66ffec81fd167adfb0505744f4df31e

SHA1
7e9fbbf1d04316334ee46cfa923330dc63b3155b

SHA256
5d33fd8f8ccea2910f1c0139e788b01c2fd3418f3956452a6db7a8aefeebc915

SHA512
227a7f30d8e02460c6a5798b26edc60e3fead6059407287fe696f5bcc63a3e4aab43f7b5e58ef6f26c4498cbad50371af3b3e302c8c3cf9dd90d8302072a3a84

Download Submit
C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
MD5
d66ffec81fd167adfb0505744f4df31e

SHA1
7e9fbbf1d04316334ee46cfa923330dc63b3155b

SHA256
5d33fd8f8ccea2910f1c0139e788b01c2fd3418f3956452a6db7a8aefeebc915

SHA512
227a7f30d8e02460c6a5798b26edc60e3fead6059407287fe696f5bcc63a3e4aab43f7b5e58ef6f26c4498cbad50371af3b3e302c8c3cf9dd90d8302072a3a84

Download Submit
\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
MD5
d66ffec81fd167adfb0505744f4df31e

SHA1
7e9fbbf1d04316334ee46cfa923330dc63b3155b

SHA256
5d33fd8f8ccea2910f1c0139e788b01c2fd3418f3956452a6db7a8aefeebc915

SHA512
227a7f30d8e02460c6a5798b26edc60e3fead6059407287fe696f5bcc63a3e4aab43f7b5e58ef6f26c4498cbad50371af3b3e302c8c3cf9dd90d8302072a3a84

Download Submit
memory/280-63-0x000000000041C70E-mapping.dmp

Download
memory/280-67-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-59-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-60-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-61-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-74-0x0000000004C00000-0x0000000004C01000-memory.dmp

Filesize
4KB

Download
memory/280-64-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-58-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-70-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-72-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/280-73-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/1288-54-0x00000000002D0000-0x00000000003C8000-memory.dmp

Filesize
992KB

Download
memory/1288-57-0x0000000004A10000-0x0000000004A11000-memory.dmp

Filesize
4KB

Download
memory/1288-56-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1288-55-0x00000000002D0000-0x00000000003C8000-memory.dmp

Filesize
992KB

Download
memory/1888-76-0x0000000000000000-mapping.dmp

Download

Analysis

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