nanocore | 6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d

General

Target
6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
Size 373KB
Sample221127-addf4sef28
SHA256 6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d
MD5 8bec63147c104503e5fbf015f43aada1
SHA1 7ac45539ec554d1868b76203d18d2c46fb4f069f
SHA512 95147f853d23e498f46bc5f1d163fcfdaace088cf12f2e31409490ab9501483067686ef0920e419507c788468de045168c4460a570db4bf789f56441a6978f32
SSDEEP 6144:A3GqLppybgISQTAfIi3afLvcWGJDB2uASN8EUbRSLQ0EwrfKza:clypScAfYfTEJDjFelALPTK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.1.1

C2

euroano.ddns.net:9033
euroano2.ddns.net:9033

Mutex

69b947b8-14b5-4929-94b4-6b6cc9d47ccf

Attributes

activate_away_mode
true
backup_connection_host
euroano2.ddns.net
backup_dns_server
buffer_size
65535
build_time
2014-10-23T22:33:32.053582736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
9033
default_group
nano
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
69b947b8-14b5-4929-94b4-6b6cc9d47ccf
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
euroano.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.1.1
wan_timeout
8000

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\9oNqwXA0uhYSdCD3\\xm8ePVAjEwOT.exe\",explorer.exe"	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

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

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3592 set thread context of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
1744	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
1744	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
1744	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1744	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
Token: SeDebugPrivilege	1744	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 2424	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	84
PID 3592 wrote to memory of 2424	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	84
PID 3592 wrote to memory of 2424	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	84
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85
PID 3592 wrote to memory of 1744	3592	6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe	85

C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
"C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
  "C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"
  2⤵
  PID:2424
- C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe
  "C:\Users\Admin\AppData\Local\Temp\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\6771ab93cecc2ca6b8527d18d4a6c449610d7d836d7a4d2bd9321b0993d0e84d.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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memory/1744-135-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1744-137-0x0000000074C60000-0x0000000075211000-memory.dmp

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memory/1744-139-0x0000000074C60000-0x0000000075211000-memory.dmp

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memory/3592-132-0x0000000074C60000-0x0000000075211000-memory.dmp

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memory/3592-138-0x0000000074C60000-0x0000000075211000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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