nanocore | 7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

Resubmissions

03/02/2025, 21:57

250203-1t5hmsvmat 10

03/02/2025, 04:37

250203-e896saslgn 10

31/01/2025, 18:35

250131-w8gmxatmc1 10

Analysis

max time kernel
148s
max time network
151s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250128-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250128-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
03/02/2025, 21:57

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General

Target

bazaar.2020.02/Trojan.MSIL.Agent.exe
Size

203KB
MD5

ca4570eb9ea8dad4939a10b9b44bbfc9
SHA1

8df59eb7a108ae2207be3b25645baffb9163f38a
SHA256

d44670b7dede4487ecc7d4a61f28a0462591fac8d303aa36b8b376001c79111d
SHA512

9c1784c3e7a37b61f2b2c729a6241a8b9edd60770ac6fbcb19840e68fbe6e33123c3d6b36b676dc4ccba24715dd4e09e06bb652a6319622162abe1dd3c10b0d0
SSDEEP

3072:szEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIv2TAbNuQjvg+g0+cNESOlsDCU:sLV6Bta6dtJmakIM56b0QkT0+uDO9GV

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\DSL Subsystem = "C:\\Program Files (x86)\\DSL Subsystem\\dslss.exe"	Trojan.MSIL.Agent.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	Trojan.MSIL.Agent.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DSL Subsystem\dslss.exe	Trojan.MSIL.Agent.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	Trojan.MSIL.Agent.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
1372	schtasks.exe
1392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2732	Trojan.MSIL.Agent.exe
2732	Trojan.MSIL.Agent.exe
2732	Trojan.MSIL.Agent.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2732	Trojan.MSIL.Agent.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	Trojan.MSIL.Agent.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 1372	2732	Trojan.MSIL.Agent.exe	83
PID 2732 wrote to memory of 1372	2732	Trojan.MSIL.Agent.exe	83
PID 2732 wrote to memory of 1372	2732	Trojan.MSIL.Agent.exe	83
PID 2732 wrote to memory of 1392	2732	Trojan.MSIL.Agent.exe	85
PID 2732 wrote to memory of 1392	2732	Trojan.MSIL.Agent.exe	85
PID 2732 wrote to memory of 1392	2732	Trojan.MSIL.Agent.exe	85

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Agent.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Agent.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:2732
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DSL Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9431.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1372
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DSL Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9480.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1392

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9431.tmp

Filesize
1KB

MD5
6d99895bd5066d9af389889bb39d0e07

SHA1
b2a9f4bf5aa2a4c9644cc963997979d6d42b9b8f

SHA256
0cc25103bb7a5cb0b4acd8e1a9d1976705706c46b4b4c13076befaf20c7fa347

SHA512
aa521d9d6ab6d59294eb319c6c369c0a0fd5227f1206b5a309e1cf06f5b4e3502acbdb9320aceb0643e0f04a91cf93291c069fb1e873cfd888f0e11f22e0af4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9480.tmp

Filesize
1KB

MD5
cc41562853d473a6d8785f7887ed523f

SHA1
5be25b133c7a5cbc1b240822e87f3cbe94aaa312

SHA256
a259d5fb27ddfee2968c9b1c1346121934b35bda37f9f446e9470a72cb95c2b7

SHA512
678c59e91d604607c7a3576dcab70eac4fb6af40d9f9db799a7a9fee67a1dd306a1a8b3bc4885e46fa6ab75970bb37fd62e6dcc66c61c09413d59991f90f12fd

Download Submit
memory/2732-0-0x0000000074A82000-0x0000000074A83000-memory.dmp

Filesize
4KB

Download
memory/2732-1-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/2732-2-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/2732-9-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/2732-10-0x0000000074A82000-0x0000000074A83000-memory.dmp

Filesize
4KB

Download
memory/2732-11-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/2732-12-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download
memory/2732-13-0x0000000074A80000-0x0000000075031000-memory.dmp

Filesize
5.7MB

Download