nanocore | baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232

Analysis

max time kernel
86s
max time network
172s
platform
windows7_x64
resource
win7-20220331-en
submitted
06/04/2022, 14:05

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General

Target
CV.exe
Size 492KB
Sample220406-rdtxjagfdj
SHA256 baf8e236476a6b0340139a2b1db14038faa96d8319399f2ef14fef201018e232
MD5 b024bb046b09f3060cd3b5f5143706cc
SHA1 038a2f0cb01f290cb94ae2778a636c62a00648f6
SHA512 762f965c8938d3183b0a61fd348dd2a656e992c5a6e01e1967fa7868851a62bf84fd455963469d42de532ca913c5be225b90dc2b8ac656f18c0c572ee22456ee
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

brightnano2.ddns.net:1818
2.56.59.113:1818

Mutex

b2fe69e3-6598-4297-a076-f809c1c27fb0

Attributes

activate_away_mode
true
backup_connection_host
2.56.59.113
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-01-01T21:51:09.988347736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1818
default_group
Default
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
b2fe69e3-6598-4297-a076-f809c1c27fb0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brightnano2.ddns.net
primary_dns_server
8.8.8.8
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
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

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	CV.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1544 set thread context of 1532	1544	CV.exe	28

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1532	CV.exe
1532	CV.exe
1532	CV.exe
1532	CV.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1532	CV.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1532	CV.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1544 wrote to memory of 1532	1544	CV.exe	28
PID 1532 wrote to memory of 1824	1532	CV.exe	29
PID 1532 wrote to memory of 1824	1532	CV.exe	29
PID 1532 wrote to memory of 1824	1532	CV.exe	29
PID 1532 wrote to memory of 1824	1532	CV.exe	29

C:\Users\Admin\AppData\Local\Temp\CV.exe
"C:\Users\Admin\AppData\Local\Temp\CV.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Users\Admin\AppData\Local\Temp\CV.exe
  "C:\Users\Admin\AppData\Local\Temp\CV.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1532
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE12C.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tmpE12C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE12C.tmp
Size 1KB
SHA256 28bb90fa03ca67c6a7156ef1351e8496a7e29014d4d17b0d19ac106510aeaf62
MD5 b3b2a2db3d8f9f8a69a44c0230350f3f
SHA1 c8b62301970264aa4d870714cbd944f3837bf449
SHA512 2bdbcc1f3008480ef02dc5ea4b6d8fef61094f113911a0607659b96c8485f6c76bfe037c92f9f3edbc15c3fe4b053ef95301fe519b93c5165f002f72cee45d4d
MD5 SHA1 SHA512

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memory/1532-72-0x0000000000620000-0x000000000062A000-memory.dmp

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memory/1532-82-0x0000000004750000-0x0000000004760000-memory.dmp

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memory/1532-86-0x0000000004790000-0x00000000047A4000-memory.dmp

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memory/1532-58-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-73-0x0000000001DB0000-0x0000000001DCE000-memory.dmp

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memory/1532-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-62-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-67-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-85-0x0000000004E60000-0x0000000004E8E000-memory.dmp

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memory/1532-84-0x0000000004770000-0x000000000477E000-memory.dmp

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memory/1532-83-0x0000000004760000-0x0000000004774000-memory.dmp

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memory/1532-59-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1532-74-0x0000000000630000-0x000000000063A000-memory.dmp

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memory/1532-75-0x0000000001F90000-0x0000000001FA2000-memory.dmp

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memory/1532-76-0x0000000001FA0000-0x0000000001FBA000-memory.dmp

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memory/1532-77-0x0000000002050000-0x000000000205E000-memory.dmp

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memory/1532-78-0x0000000002070000-0x0000000002082000-memory.dmp

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memory/1532-79-0x00000000020C0000-0x00000000020CE000-memory.dmp

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memory/1532-80-0x0000000002180000-0x000000000218C000-memory.dmp

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memory/1532-81-0x0000000004290000-0x00000000042A4000-memory.dmp

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memory/1544-54-0x0000000000220000-0x00000000002A2000-memory.dmp

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memory/1544-55-0x00000000004A0000-0x00000000004AA000-memory.dmp

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memory/1544-56-0x0000000005860000-0x00000000058DE000-memory.dmp

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memory/1544-57-0x0000000001F40000-0x0000000001F7A000-memory.dmp

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