nanocore | 573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f

General

Target
46b282bdc8af51c89f4a76dbe59d2014.exe
Size 572KB
Sample220402-tmxe5abfek
SHA256 573b1dd9da735c7ca71132db9e6e8cb9fb5c8293b2f185d10b877ed33a203e2f
MD5 46b282bdc8af51c89f4a76dbe59d2014
SHA1 149b1ee6d5bc3c91cbb758811f599eb3e6394b5e
SHA512 0f1f7ca45edcc2d90b499affc7d782f041e4a1a334962e303efa725cde3ef54e16a35cd8433b21e7cb6ece5155f4b9ef762599349c60ad2f7ea900f797be6d1a
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newnano03.ddns.net:6991

Mutex

82283d60-dc19-4dfd-837a-46ce92ded5a8

Attributes

activate_away_mode
true
backup_connection_host
newnano03.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-01-01T16:57:55.443374336Z
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
6991
default_group
xp2
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
82283d60-dc19-4dfd-837a-46ce92ded5a8
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
newnano03.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Subsystem = "C:\\Program Files (x86)\\IMAP Subsystem\\imapss.exe"	46b282bdc8af51c89f4a76dbe59d2014.exe

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	46b282bdc8af51c89f4a76dbe59d2014.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 860 set thread context of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\IMAP Subsystem\imapss.exe	46b282bdc8af51c89f4a76dbe59d2014.exe
File created	C:\Program Files (x86)\IMAP Subsystem\imapss.exe	46b282bdc8af51c89f4a76dbe59d2014.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4772	schtasks.exe
4116	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3116	46b282bdc8af51c89f4a76dbe59d2014.exe
3116	46b282bdc8af51c89f4a76dbe59d2014.exe
3116	46b282bdc8af51c89f4a76dbe59d2014.exe
3116	46b282bdc8af51c89f4a76dbe59d2014.exe
3116	46b282bdc8af51c89f4a76dbe59d2014.exe
3116	46b282bdc8af51c89f4a76dbe59d2014.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3116	46b282bdc8af51c89f4a76dbe59d2014.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	46b282bdc8af51c89f4a76dbe59d2014.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 860 wrote to memory of 3116	860	46b282bdc8af51c89f4a76dbe59d2014.exe	76
PID 3116 wrote to memory of 4772	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	77
PID 3116 wrote to memory of 4772	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	77
PID 3116 wrote to memory of 4772	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	77
PID 3116 wrote to memory of 4116	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	79
PID 3116 wrote to memory of 4116	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	79
PID 3116 wrote to memory of 4116	3116	46b282bdc8af51c89f4a76dbe59d2014.exe	79

C:\Users\Admin\AppData\Local\Temp\46b282bdc8af51c89f4a76dbe59d2014.exe
"C:\Users\Admin\AppData\Local\Temp\46b282bdc8af51c89f4a76dbe59d2014.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:860
- C:\Users\Admin\AppData\Local\Temp\46b282bdc8af51c89f4a76dbe59d2014.exe
  "C:\Users\Admin\AppData\Local\Temp\46b282bdc8af51c89f4a76dbe59d2014.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2C30.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4772
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3876.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

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

tmp2C30.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2C30.tmp
Size 1KB
SHA256 a7df4ded9bdd4aa8ff665e76b1d025e739f1d41307fc3c2e7ebaaa02ebd60dd2
MD5 6b21a5c5444d952a6c95a6c259357db4
SHA1 b9ccae023fe3ecff6720bd7e61b5588c20586772
SHA512 5d1e9b2bb1835e47676d366141a861ef5469d3eaabcf12e446b5411ccafb3f05d8aead19863f742b211cb5511dcd5ef460efbf719ea1b3c20a00c0c4d3deb64b
MD5 SHA1 SHA512

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tmp3876.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp3876.tmp
Size 1KB
SHA256 113b96e45fb075b17d381d3933db3eb2afcd1d08f7066a27b701ed9efd6c55f7
MD5 4a0b600dc69a91b7134c8cedda9e49d3
SHA1 788e74e33a9dc48a45074b7226730a299352f2ef
SHA512 e2c7b7ad53ae28f895bbc8f5781b4748af1998832e6f6dadca77a961a123fc5507f84ddac3f1c6851a80d279416485515a7bd1798053aee5ff38e62ce4c7c44c
MD5 SHA1 SHA512

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memory/860-124-0x00000000003E0000-0x0000000000474000-memory.dmp

Download

memory/860-125-0x0000000005430000-0x00000000059D4000-memory.dmp

Download

memory/860-126-0x0000000004E80000-0x0000000004F12000-memory.dmp

Download

memory/860-127-0x00000000028E0000-0x00000000028EA000-memory.dmp

Download

memory/860-128-0x0000000007670000-0x000000000770C000-memory.dmp

Download

memory/860-129-0x0000000007930000-0x0000000007996000-memory.dmp

Download

memory/3116-131-0x0000000000400000-0x0000000000438000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads