nanocore | fded70e0d7bee0d44fdb8cd327a09f1a879d61cc35a57a4d2cba7d7d232eed18

General

Target

Model list set 20 USD4 8 HPID 90CUI 874.exe
Size

782KB
MD5

583524e79bf439fe42fc992fea5d75f9
SHA1

433e13004fc64ef09412e0ac57cc42492eb9b327
SHA256

fded70e0d7bee0d44fdb8cd327a09f1a879d61cc35a57a4d2cba7d7d232eed18
SHA512

b7b1e704c7ffd7993fc937d63d0c49bc3a359ce963dc15cfb29276b282fad8ddd3035acbd9ebf3211a01beb87c1c89d717716ce8876b9e51040b0f0f1186e262

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.53:7171

Mutex

7492bd48-e55d-4165-b6f8-ba286e7dc450

Attributes

activate_away_mode
true
backup_connection_host
79.134.225.53
backup_dns_server
buffer_size
65535
build_time
2022-05-17T09:15:51.131379036Z
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
7171
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
7492bd48-e55d-4165-b6f8-ba286e7dc450
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.53
primary_dns_server
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	Model list set 20 USD4 8 HPID 90CUI 874.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Monitor = "C:\\Program Files (x86)\\IMAP Monitor\\imapmon.exe"	Model list set 20 USD4 8 HPID 90CUI 874.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Model list set 20 USD4 8 HPID 90CUI 874.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

description	pid	process	target process
PID 4400 set thread context of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe

Drops file in Program Files directory 2 IoCs

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

description	ioc	process
File created	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
File opened for modification	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

3656 schtasks.exe
4080 schtasks.exe
2724 schtasks.exe

pid	process
3656	schtasks.exe
4080	schtasks.exe
2724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exeModel list set 20 USD4 8 HPID 90CUI 874.exe

pid	process
4264	powershell.exe
4264	powershell.exe
3180	Model list set 20 USD4 8 HPID 90CUI 874.exe
3180	Model list set 20 USD4 8 HPID 90CUI 874.exe
3180	Model list set 20 USD4 8 HPID 90CUI 874.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exe

pid process

3180 Model list set 20 USD4 8 HPID 90CUI 874.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeModel list set 20 USD4 8 HPID 90CUI 874.exe

description pid process

Token: SeDebugPrivilege 4264 powershell.exe
Token: SeDebugPrivilege 3180 Model list set 20 USD4 8 HPID 90CUI 874.exe

pid	process
3180	Model list set 20 USD4 8 HPID 90CUI 874.exe

description	pid	process
Token: SeDebugPrivilege	4264	powershell.exe
Token: SeDebugPrivilege	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Model list set 20 USD4 8 HPID 90CUI 874.exeModel list set 20 USD4 8 HPID 90CUI 874.exe

description	pid	process	target process
PID 4400 wrote to memory of 4264	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	powershell.exe
PID 4400 wrote to memory of 4264	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	powershell.exe
PID 4400 wrote to memory of 4264	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	powershell.exe
PID 4400 wrote to memory of 3656	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 4400 wrote to memory of 3656	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 4400 wrote to memory of 3656	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 4400 wrote to memory of 3180	4400	Model list set 20 USD4 8 HPID 90CUI 874.exe	Model list set 20 USD4 8 HPID 90CUI 874.exe
PID 3180 wrote to memory of 4080	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 3180 wrote to memory of 4080	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 3180 wrote to memory of 4080	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 3180 wrote to memory of 2724	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 3180 wrote to memory of 2724	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe
PID 3180 wrote to memory of 2724	3180	Model list set 20 USD4 8 HPID 90CUI 874.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Model list set 20 USD4 8 HPID 90CUI 874.exe
"C:\Users\Admin\AppData\Local\Temp\Model list set 20 USD4 8 HPID 90CUI 874.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4400

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nFxIoujoILCO.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4264

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nFxIoujoILCO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp"
2⤵
- Creates scheduled task(s)
PID:3656

C:\Users\Admin\AppData\Local\Temp\Model list set 20 USD4 8 HPID 90CUI 874.exe
"C:\Users\Admin\AppData\Local\Temp\Model list set 20 USD4 8 HPID 90CUI 874.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:3180

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "IMAP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp79D3.tmp"
3⤵
- Creates scheduled task(s)
PID:4080

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "IMAP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B6B.tmp"
3⤵
- Creates scheduled task(s)
PID:2724

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Model list set 20 USD4 8 HPID 90CUI 874.exe.log
Filesize
1KB

MD5
8323fae9fbc8238dfd3efdc87ac3534c

SHA1
d88623828a38d6b528963a32902c9f336a08942e

SHA256
1ccd81d339d51696fa8569e0ea179873452e8aa087b14a397538cda74996fe00

SHA512
9a50d78360761b85c2b49fd2959744c004a74600ffef5756391fec0f02c8aafc6061a028518808693297f03e9fc65067e3d4b29d876ed70eb8e2ad9094d246c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp74E2.tmp
Filesize
1KB

MD5
50000eaeef9cfa0f802691f165adbd26

SHA1
1ac28c16a0e3a1fb0334211b41236c76e8821091

SHA256
e3262bb6f8cc7313ad895f06fbebcd14394c585dddf18f3b85b90e7c6eaf743b

SHA512
63a42406b06cf87351a85d9dc7a4609c6925077eef98d7d5f80fe7579aeb9e6685090ec5cf055765b6a719bb13ea6005b37b790c4cf71500962cd520c7a3f4bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp79D3.tmp
Filesize
1KB

MD5
e36c868e6e1a9839ab343ed227dffdf5

SHA1
2a48105ace24da23a77eb0e9455c44511bd82496

SHA256
bbea0f5b120a452e82db8dd7e5d70a319f4fb8601a878becccac2ee6cd57e546

SHA512
a55b1b04f47c731d27e4259b92ac56856f36466314a7f685bd7719a4ef775dc173c4d96e6341cdb372addcb1b596ae79e74ffee3288df8df9131b8508bd65ba5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7B6B.tmp
Filesize
1KB

MD5
d2d6911d94b06e405e7687a2437eafec

SHA1
9f28f9e7d8d5179d44ddaa6ca266984ed7521dea

SHA256
2dc87169ad53fbdd7abb08f49777cb8fb05adbff4e6f6616b4c89942af8cad0f

SHA512
b5983de701ff98e944283a25f1770c1e792d52148dc1671f1d19203f8b9d10b056abcf79a17ca536a5f88ccf52f6445d8f3e75fce628666640ad8bad697dcfd1

Download Submit
memory/2724-149-0x0000000000000000-mapping.dmp

Download
memory/3180-142-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3180-141-0x0000000000000000-mapping.dmp

Download
memory/3656-137-0x0000000000000000-mapping.dmp

Download
memory/4080-146-0x0000000000000000-mapping.dmp

Download
memory/4264-144-0x00000000058A0000-0x00000000058C2000-memory.dmp

Filesize
136KB

Download
memory/4264-155-0x0000000007A80000-0x0000000007A9A000-memory.dmp

Filesize
104KB

Download
memory/4264-138-0x0000000002E80000-0x0000000002EB6000-memory.dmp

Filesize
216KB

Download
memory/4264-136-0x0000000000000000-mapping.dmp

Download
memory/4264-160-0x0000000007DA0000-0x0000000007DA8000-memory.dmp

Filesize
32KB

Download
memory/4264-159-0x0000000007DC0000-0x0000000007DDA000-memory.dmp

Filesize
104KB

Download
memory/4264-145-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/4264-158-0x0000000007CB0000-0x0000000007CBE000-memory.dmp

Filesize
56KB

Download
memory/4264-147-0x0000000006780000-0x000000000679E000-memory.dmp

Filesize
120KB

Download
memory/4264-157-0x0000000007D00000-0x0000000007D96000-memory.dmp

Filesize
600KB

Download
memory/4264-156-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

Filesize
40KB

Download
memory/4264-140-0x00000000059F0000-0x0000000006018000-memory.dmp

Filesize
6.2MB

Download
memory/4264-151-0x0000000006D50000-0x0000000006D82000-memory.dmp

Filesize
200KB

Download
memory/4264-152-0x0000000070890000-0x00000000708DC000-memory.dmp

Filesize
304KB

Download
memory/4264-153-0x0000000006D30000-0x0000000006D4E000-memory.dmp

Filesize
120KB

Download
memory/4264-154-0x00000000080D0000-0x000000000874A000-memory.dmp

Filesize
6.5MB

Download
memory/4400-131-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/4400-132-0x00000000052B0000-0x0000000005342000-memory.dmp

Filesize
584KB

Download
memory/4400-133-0x0000000005360000-0x000000000536A000-memory.dmp

Filesize
40KB

Download
memory/4400-134-0x000000000B330000-0x000000000B3CC000-memory.dmp

Filesize
624KB

Download
memory/4400-130-0x0000000000840000-0x000000000090A000-memory.dmp

Filesize
808KB

Download
memory/4400-135-0x000000000B3D0000-0x000000000B436000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads