4d4f1d9ac5e7887dda018ea46753789a0c3d8e1199ea3c34502aa8da2136fe0e

General

Target

nes1.exe
Size

75KB
MD5

147e760e14fcb833dd6dba8aabfbe092
SHA1

8ae5369a8a95737a8efc4831f5a20ca6b2d959b6
SHA256

4d4f1d9ac5e7887dda018ea46753789a0c3d8e1199ea3c34502aa8da2136fe0e
SHA512

ebad6c551e11acef22e2952131e68dec9931a31f366d89f9d02ed63b3e479a8e6fa2eaa38b6d4c2885e1714e888124c207a7dbc4c15741f5cb11d8081d1198a5

Score

10^/10

evasion persistence spyware trojan

Malware Config

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\applicationSU = "\"C:\\Users\\Admin\\AppData\\Roaming\\tmp1\\apps\\applicationSU.exe\""	nes1.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	eth0.me

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2016 set thread context of 2040	2016	nes1.exe	31

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
852	taskkill.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1100	powershell.exe
2016	nes1.exe
2016	nes1.exe
2040	MSBuild.exe
2040	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	nes1.exe
Token: SeDebugPrivilege	1100	powershell.exe
Token: SeDebugPrivilege	2040	MSBuild.exe
Token: SeDebugPrivilege	852	taskkill.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 1100	2016	nes1.exe	29
PID 2016 wrote to memory of 1100	2016	nes1.exe	29
PID 2016 wrote to memory of 1100	2016	nes1.exe	29
PID 2016 wrote to memory of 1100	2016	nes1.exe	29
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2016 wrote to memory of 2040	2016	nes1.exe	31
PID 2040 wrote to memory of 852	2040	MSBuild.exe	33
PID 2040 wrote to memory of 852	2040	MSBuild.exe	33
PID 2040 wrote to memory of 852	2040	MSBuild.exe	33
PID 2040 wrote to memory of 852	2040	MSBuild.exe	33

C:\Users\Admin\AppData\Local\Temp\nes1.exe
"C:\Users\Admin\AppData\Local\Temp\nes1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgACcAQwA6AFwAJwAsACcAQwA6AFwAVQBzAGUAcgBzAFwAQQBkAG0AaQBuAFwAQQBwAHAARABhAHQAYQBcAFIAbwBhAG0AaQBuAGcAXAB0AG0AcAAxAFwAYQBwAHAAcwBcAGEAcABwAGwAaQBjAGEAdABpAG8AbgBTAFUALgBlAHgAZQAnAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1100
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\SysWOW64\taskkill.exe
    "taskkill.exe" /im chrome.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:852

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1100-60-0x00000000765D1000-0x00000000765D3000-memory.dmp

Filesize
8KB

Download
memory/1100-63-0x0000000002450000-0x000000000309A000-memory.dmp

Filesize
12.3MB

Download
memory/1100-64-0x000000006F890000-0x000000006FE3B000-memory.dmp

Filesize
5.7MB

Download
memory/1100-62-0x0000000002450000-0x000000000309A000-memory.dmp

Filesize
12.3MB

Download
memory/1100-61-0x000000006F890000-0x000000006FE3B000-memory.dmp

Filesize
5.7MB

Download
memory/2016-59-0x0000000004660000-0x00000000046AC000-memory.dmp

Filesize
304KB

Download
memory/2016-54-0x0000000000B10000-0x0000000000B26000-memory.dmp

Filesize
88KB

Download
memory/2016-58-0x0000000005F80000-0x0000000006000000-memory.dmp

Filesize
512KB

Download
memory/2016-57-0x0000000005C80000-0x0000000005D34000-memory.dmp

Filesize
720KB

Download
memory/2016-56-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/2016-55-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2040-67-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-65-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-69-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-71-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-73-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-75-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-77-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2040-78-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2040-79-0x00000000056D0000-0x00000000056D1000-memory.dmp

Filesize
4KB

Download

Analysis

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