nanocore | 400c24bdb9b7dabfcd9a8a2f137550f338014d833d169c6e6f4252910fb95feb

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:15

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General

Target

a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
Size

220KB
MD5

485d26faa5a5e191362df89c3705d130
SHA1

414705f6c6fd08671a9e8a9134242f4f0b177497
SHA256

a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56
SHA512

daf726b29167875dfcebe4c1ec91e39fb81936c27548d995a417a9101891fc16f21a49ea81ede606d5529b0950bfbc6306ab8866ba0c97a9a20dc7f42aef092a
SSDEEP

3072:TzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIyCYMFPAGTwjgaxODOeSQcY/Up:TLV6Bta6dtJmakIM52Nr8PxtPY/1K

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UPNP Service = "C:\\Program Files (x86)\\UPNP Service\\upnpsv.exe"	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UPNP Service\upnpsv.exe	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
File opened for modification	C:\Program Files (x86)\UPNP Service\upnpsv.exe	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1228	schtasks.exe
2160	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3760 wrote to memory of 2160	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	88
PID 3760 wrote to memory of 2160	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	88
PID 3760 wrote to memory of 2160	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	88
PID 3760 wrote to memory of 1228	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	90
PID 3760 wrote to memory of 1228	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	90
PID 3760 wrote to memory of 1228	3760	a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe	90

C:\Users\Admin\AppData\Local\Temp\a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe
"C:\Users\Admin\AppData\Local\Temp\a3d1683844f5211b303b529b3dfa6c87d9ecc37f8806097d5792dd394d52eb56.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "UPNP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7733.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2160
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "UPNP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp77A2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7733.tmp

Filesize
1KB

MD5
d0f1977553370de9085dad58017cbbd7

SHA1
7ceb7ce8a2d0efb43deb64c972e99cd2dde4dbce

SHA256
af005b0afa00dbc9bc4d539005e311e40902cae44e6c90590a73a9f72755ea79

SHA512
76709c544727ced34afb85f5535f5cec6d202adbfdf070424263f21b433f5baca38ce13dc9ee74c36c9a85ae9e8a14cff58330223a2c401e5ef3e45c6d12d3a2

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp77A2.tmp

Filesize
1KB

MD5
f5c88edc70516bc96f4edf9ff3f5d7cd

SHA1
73d6689e32a97f3887fe88e0625fd3452ab480db

SHA256
87352900601dc127efe3ee3e9952e94a72aa04b02ff9e9e3e01ffa5a44edca4b

SHA512
2e69e1ad4b2c4236b55ace46b9dbc1e777cc109203f084cdb1263c74ae4035896d9b909e88f1f65b37a1551c6a3b0c0f9f2d22dbe7f6f49a8383ba56759ea1dd

Download Submit
memory/3760-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/3760-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3760-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3760-10-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3760-11-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/3760-12-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3760-13-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/3760-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download