nanocore | 7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e

Analysis

max time kernel
190s
max time network
198s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2023 18:36

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General

Target

dfa13488e17563586e4f0f5348232714.exe
Size

19.9MB
MD5

dfa13488e17563586e4f0f5348232714
SHA1

b28e1dc461365486b8e2355dd5be9ab363c3685a
SHA256

7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e
SHA512

5c5341e90a6da791c4b81476a6a169b75cd963eb366ef36bacfc94ac0cd78c6d721bb66fd7569e11beab41f6b39523a20161d184f18deea7b8912b70b08d8f70
SSDEEP

12288:S8SnG5jbNCUZLHVaaj7uTPUn0S6M8RLO4VsypU:SjnG5lCEGTBM8RLTz

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

kala007.duckdns.org:3436

kala1.duckdns.org:3436

Mutex

5f09d95a-c1a6-4d61-afee-3e828645a504

Attributes

activate_away_mode
true
backup_connection_host
kala1.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-10-10T22:47:40.772130236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3436
default_group
MunaBc
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
5f09d95a-c1a6-4d61-afee-3e828645a504
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kala007.duckdns.org
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

Executes dropped EXE 3 IoCs

pid	Process
1124	easeus.exe
1796	easeus.exe
4536	easeus.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	RegAsm.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 1124 set thread context of 1112	1124	easeus.exe	98
PID 1796 set thread context of 1060	1796	easeus.exe	107
PID 4536 set thread context of 3756	4536	easeus.exe	118

Creates scheduled task(s) 1 TTPs 4 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4792	schtasks.exe
3216	schtasks.exe
2648	schtasks.exe
2992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4508	RegAsm.exe
4508	RegAsm.exe
4508	RegAsm.exe
4508	RegAsm.exe
4508	RegAsm.exe
4508	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4508	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	RegAsm.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4508	4476	dfa13488e17563586e4f0f5348232714.exe	86
PID 4476 wrote to memory of 4116	4476	dfa13488e17563586e4f0f5348232714.exe	87
PID 4476 wrote to memory of 4116	4476	dfa13488e17563586e4f0f5348232714.exe	87
PID 4476 wrote to memory of 4116	4476	dfa13488e17563586e4f0f5348232714.exe	87
PID 4476 wrote to memory of 1760	4476	dfa13488e17563586e4f0f5348232714.exe	89
PID 4476 wrote to memory of 1760	4476	dfa13488e17563586e4f0f5348232714.exe	89
PID 4476 wrote to memory of 1760	4476	dfa13488e17563586e4f0f5348232714.exe	89
PID 4476 wrote to memory of 1180	4476	dfa13488e17563586e4f0f5348232714.exe	90
PID 4476 wrote to memory of 1180	4476	dfa13488e17563586e4f0f5348232714.exe	90
PID 4476 wrote to memory of 1180	4476	dfa13488e17563586e4f0f5348232714.exe	90
PID 1760 wrote to memory of 2648	1760	cmd.exe	93
PID 1760 wrote to memory of 2648	1760	cmd.exe	93
PID 1760 wrote to memory of 2648	1760	cmd.exe	93
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 1112	1124	easeus.exe	98
PID 1124 wrote to memory of 4528	1124	easeus.exe	99
PID 1124 wrote to memory of 4528	1124	easeus.exe	99
PID 1124 wrote to memory of 4528	1124	easeus.exe	99
PID 1124 wrote to memory of 4788	1124	easeus.exe	101
PID 1124 wrote to memory of 4788	1124	easeus.exe	101
PID 1124 wrote to memory of 4788	1124	easeus.exe	101
PID 1124 wrote to memory of 1524	1124	easeus.exe	102
PID 1124 wrote to memory of 1524	1124	easeus.exe	102
PID 1124 wrote to memory of 1524	1124	easeus.exe	102
PID 4788 wrote to memory of 2992	4788	cmd.exe	105
PID 4788 wrote to memory of 2992	4788	cmd.exe	105
PID 4788 wrote to memory of 2992	4788	cmd.exe	105
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1060	1796	easeus.exe	107
PID 1796 wrote to memory of 1456	1796	easeus.exe	108
PID 1796 wrote to memory of 1456	1796	easeus.exe	108
PID 1796 wrote to memory of 1456	1796	easeus.exe	108
PID 1796 wrote to memory of 4884	1796	easeus.exe	109
PID 1796 wrote to memory of 4884	1796	easeus.exe	109
PID 1796 wrote to memory of 4884	1796	easeus.exe	109
PID 1796 wrote to memory of 3088	1796	easeus.exe	110
PID 1796 wrote to memory of 3088	1796	easeus.exe	110
PID 1796 wrote to memory of 3088	1796	easeus.exe	110
PID 4884 wrote to memory of 4792	4884	cmd.exe	114
PID 4884 wrote to memory of 4792	4884	cmd.exe	114
PID 4884 wrote to memory of 4792	4884	cmd.exe	114
PID 4536 wrote to memory of 3756	4536	easeus.exe	118
PID 4536 wrote to memory of 3756	4536	easeus.exe	118
PID 4536 wrote to memory of 3756	4536	easeus.exe	118
PID 4536 wrote to memory of 3756	4536	easeus.exe	118

C:\Users\Admin\AppData\Local\Temp\dfa13488e17563586e4f0f5348232714.exe
"C:\Users\Admin\AppData\Local\Temp\dfa13488e17563586e4f0f5348232714.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4476
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4508
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\easeus"
  2⤵
  PID:4116
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\dfa13488e17563586e4f0f5348232714.exe" "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe"
  2⤵
  PID:1180

C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1112
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\easeus"
  2⤵
  PID:4528
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4788
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2992
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe" "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe"
  2⤵
  PID:1524

C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1060
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\easeus"
  2⤵
  PID:1456
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4792
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe" "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe"
  2⤵
  PID:3088

C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3756
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\easeus"
  2⤵
  PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
  2⤵
  PID:3396
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\easeus\easeus.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:3216
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe" "C:\Users\Admin\AppData\Roaming\easeus\easeus.exe"
  2⤵
  PID:3164

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegAsm.exe.log

Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\easeus.exe.log

Filesize
897B

MD5
e3c2358e1546ed28a017b95c885c61c0

SHA1
157235400ab82c991d10291e0ce1b663523eee9c

SHA256
66f06275710b143c30bdc3e821f7d9643675a980a2308332ec4844d1211a9fd7

SHA512
cbfc11eee0ce61d184543b33698e3bb6987a6ada3573b1575021626ef200d01308a7469d55e29574dc9b89cfdb1d11a250e1e8c2e3898899af90fa3dcc452a0f

Download Submit
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe

Filesize
19.9MB

MD5
dfa13488e17563586e4f0f5348232714

SHA1
b28e1dc461365486b8e2355dd5be9ab363c3685a

SHA256
7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e

SHA512
5c5341e90a6da791c4b81476a6a169b75cd963eb366ef36bacfc94ac0cd78c6d721bb66fd7569e11beab41f6b39523a20161d184f18deea7b8912b70b08d8f70

Download Submit
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe

Filesize
19.9MB

MD5
dfa13488e17563586e4f0f5348232714

SHA1
b28e1dc461365486b8e2355dd5be9ab363c3685a

SHA256
7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e

SHA512
5c5341e90a6da791c4b81476a6a169b75cd963eb366ef36bacfc94ac0cd78c6d721bb66fd7569e11beab41f6b39523a20161d184f18deea7b8912b70b08d8f70

Download Submit
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe

Filesize
19.9MB

MD5
dfa13488e17563586e4f0f5348232714

SHA1
b28e1dc461365486b8e2355dd5be9ab363c3685a

SHA256
7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e

SHA512
5c5341e90a6da791c4b81476a6a169b75cd963eb366ef36bacfc94ac0cd78c6d721bb66fd7569e11beab41f6b39523a20161d184f18deea7b8912b70b08d8f70

Download Submit
C:\Users\Admin\AppData\Roaming\easeus\easeus.exe

Filesize
19.9MB

MD5
dfa13488e17563586e4f0f5348232714

SHA1
b28e1dc461365486b8e2355dd5be9ab363c3685a

SHA256
7ade8e9cc5023375d100ff66a55971fe3b7a06e73edaec66ed0595b9f252b52e

SHA512
5c5341e90a6da791c4b81476a6a169b75cd963eb366ef36bacfc94ac0cd78c6d721bb66fd7569e11beab41f6b39523a20161d184f18deea7b8912b70b08d8f70

Download Submit
memory/1060-163-0x00000000058C0000-0x00000000058D0000-memory.dmp

Filesize
64KB

Download
memory/1124-152-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/1796-160-0x0000000004860000-0x0000000004870000-memory.dmp

Filesize
64KB

Download
memory/3756-167-0x0000000005890000-0x00000000058A0000-memory.dmp

Filesize
64KB

Download
memory/4476-133-0x00000000002C0000-0x000000000032E000-memory.dmp

Filesize
440KB

Download
memory/4476-134-0x0000000004C80000-0x0000000004CE6000-memory.dmp

Filesize
408KB

Download
memory/4476-137-0x00000000025F0000-0x0000000002600000-memory.dmp

Filesize
64KB

Download
memory/4476-136-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/4476-135-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4508-146-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/4508-155-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/4508-154-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/4508-138-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4508-144-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/4508-143-0x0000000005B60000-0x0000000005B70000-memory.dmp

Filesize
64KB

Download
memory/4508-140-0x0000000005920000-0x00000000059BC000-memory.dmp

Filesize
624KB

Download
memory/4536-165-0x0000000005740000-0x0000000005750000-memory.dmp

Filesize
64KB

Download