nanocore | c5027168d892a9fb3e917556dfed86361541ea200a27f52c225e96f841c28c02

General

Target

Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
Size

863KB
MD5

e5785f7aa83ec8da6f28b438f821e5f6
SHA1

50036f7888d32490c69259b1db30cff8f14d98c5
SHA256

4471de15ce9e9b3bee5bc77b26e67fe91b6be5e51d7ef8e174b30a6c3e32e43a
SHA512

a26d8c0ff570a573ae2478ce4230367d14bebe3af7c4bf3aa410415b5724f132bc9eb353c6e9b68d0f959f5daa6d9e74f0a3fb2bc8d2fe8b35fde62b223b0eed

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.91:4488

Mutex

098e4f4f-7679-4607-961c-79d0e06713b4

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-05T09:58:00.832696536Z
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
4488
default_group
NEW
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
098e4f4f-7679-4607-961c-79d0e06713b4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.91
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
Executes dropped EXE 2 IoCs

Processes:

googles.exeInstallUtil.exe

pid process

3976 googles.exe
1164 InstallUtil.exe

pid	process
3976	googles.exe
1164	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 4 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral2/memory/1892-122-0x00000000066D0000-0x00000000066F1000-memory.dmp	agile_net
behavioral2/memory/1892-125-0x0000000004C30000-0x000000000512E000-memory.dmp	agile_net
behavioral2/memory/3976-138-0x0000000004C10000-0x000000000510E000-memory.dmp	agile_net
behavioral2/memory/3976-142-0x0000000004C10000-0x000000000510E000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exeInstallUtil.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\googles = "C:\\Users\\Admin\\AppData\\Roaming\\googles.exe"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Manager = "C:\\Program Files (x86)\\ISS Manager\\issmgr.exe"	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

InstallUtil.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA InstallUtil.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

googles.exe

description pid process target process

PID 3976 set thread context of 1164 3976 googles.exe InstallUtil.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	InstallUtil.exe

description	pid	process	target process
PID 3976 set thread context of 1164	3976	googles.exe	InstallUtil.exe

Drops file in Program Files directory 2 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File created	C:\Program Files (x86)\ISS Manager\issmgr.exe	InstallUtil.exe
File opened for modification	C:\Program Files (x86)\ISS Manager\issmgr.exe	InstallUtil.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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3036 schtasks.exe
3252 schtasks.exe

pid	process
3036	schtasks.exe
3252	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exegoogles.exeInstallUtil.exe

pid	process
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
3976	googles.exe
3976	googles.exe
1164	InstallUtil.exe
1164	InstallUtil.exe
1164	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

InstallUtil.exe

pid process

1164 InstallUtil.exe

pid	process
1164	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exegoogles.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
Token: SeDebugPrivilege	3976	googles.exe
Token: SeDebugPrivilege	1164	InstallUtil.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.execmd.exegoogles.exeInstallUtil.exe

description	pid	process	target process
PID 1892 wrote to memory of 3968	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	cmd.exe
PID 1892 wrote to memory of 3968	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	cmd.exe
PID 1892 wrote to memory of 3968	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	cmd.exe
PID 3968 wrote to memory of 1524	3968	cmd.exe	reg.exe
PID 3968 wrote to memory of 1524	3968	cmd.exe	reg.exe
PID 3968 wrote to memory of 1524	3968	cmd.exe	reg.exe
PID 1892 wrote to memory of 3976	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	googles.exe
PID 1892 wrote to memory of 3976	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	googles.exe
PID 1892 wrote to memory of 3976	1892	Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe	googles.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 3976 wrote to memory of 1164	3976	googles.exe	InstallUtil.exe
PID 1164 wrote to memory of 3036	1164	InstallUtil.exe	schtasks.exe
PID 1164 wrote to memory of 3036	1164	InstallUtil.exe	schtasks.exe
PID 1164 wrote to memory of 3036	1164	InstallUtil.exe	schtasks.exe
PID 1164 wrote to memory of 3252	1164	InstallUtil.exe	schtasks.exe
PID 1164 wrote to memory of 3252	1164	InstallUtil.exe	schtasks.exe
PID 1164 wrote to memory of 3252	1164	InstallUtil.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe
"C:\Users\Admin\AppData\Local\Temp\Samples_Order_Schedule#483948-2021_Vinhphu_General_Joint_STock.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "googles" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\googles.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3968

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "googles" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\googles.exe"
3⤵
- Adds Run key to start application
PID:1524

C:\Users\Admin\AppData\Roaming\googles.exe
"C:\Users\Admin\AppData\Roaming\googles.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- 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:1164

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ISS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDB71.tmp"
4⤵
- Creates scheduled task(s)
PID:3036

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "ISS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDBD0.tmp"
4⤵
- Creates scheduled task(s)
PID:3252

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

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDB71.tmp
MD5
f7eb19c49b51cdff67a25c6876a78241

SHA1
6d86be501c2fb57b50292a55d3983b7eee8a688d

SHA256
c9dab73a0044021d2acbc3952b19dea98cdfd838afc633197bd1bd12d2562fba

SHA512
1e94e363f9d4d0dcdfe0a8457642fcfe4f81dff0b39f1d1f00deab9291e133cd40b48c097dfe52c356d4a15c383e0aa08fae28b136937bcc57d5e01861716740

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDBD0.tmp
MD5
ea7095fa975a5ac043c9de2899ce61d0

SHA1
ba4e21d0728fb1b4b87006c2e8ceb6109c9046a3

SHA256
5a1ba7b1b91e0bb7aedcfa82dc687972abb31f72ae1613ac586938ef0843f30f

SHA512
b52c8f1b58f263a3d1ad1ef9939167853a5f55033d9ad8976130174c7118407711a0703266c7d2d542bc2ca8119f875e35cc791b9dd70ef83b5310ac1e7cd1cb

Download Submit
C:\Users\Admin\AppData\Roaming\googles.exe
MD5
e5785f7aa83ec8da6f28b438f821e5f6

SHA1
50036f7888d32490c69259b1db30cff8f14d98c5

SHA256
4471de15ce9e9b3bee5bc77b26e67fe91b6be5e51d7ef8e174b30a6c3e32e43a

SHA512
a26d8c0ff570a573ae2478ce4230367d14bebe3af7c4bf3aa410415b5724f132bc9eb353c6e9b68d0f959f5daa6d9e74f0a3fb2bc8d2fe8b35fde62b223b0eed

Download Submit
C:\Users\Admin\AppData\Roaming\googles.exe
MD5
e5785f7aa83ec8da6f28b438f821e5f6

SHA1
50036f7888d32490c69259b1db30cff8f14d98c5

SHA256
4471de15ce9e9b3bee5bc77b26e67fe91b6be5e51d7ef8e174b30a6c3e32e43a

SHA512
a26d8c0ff570a573ae2478ce4230367d14bebe3af7c4bf3aa410415b5724f132bc9eb353c6e9b68d0f959f5daa6d9e74f0a3fb2bc8d2fe8b35fde62b223b0eed

Download Submit
memory/1164-161-0x0000000004E60000-0x0000000004E63000-memory.dmp

Filesize
12KB

Download
memory/1164-145-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1164-154-0x0000000004920000-0x0000000004921000-memory.dmp

Filesize
4KB

Download
memory/1164-146-0x000000000041E792-mapping.dmp

Download
memory/1164-162-0x00000000047D0000-0x0000000004862000-memory.dmp

Filesize
584KB

Download
memory/1164-159-0x00000000049F0000-0x00000000049F5000-memory.dmp

Filesize
20KB

Download
memory/1164-160-0x0000000004A00000-0x0000000004A19000-memory.dmp

Filesize
100KB

Download
memory/1524-127-0x0000000000000000-mapping.dmp

Download
memory/1892-122-0x00000000066D0000-0x00000000066F1000-memory.dmp

Filesize
132KB

Download
memory/1892-121-0x0000000004C30000-0x000000000512E000-memory.dmp

Filesize
5.0MB

Download
memory/1892-114-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/1892-119-0x0000000005630000-0x0000000005631000-memory.dmp

Filesize
4KB

Download
memory/1892-118-0x0000000004D70000-0x0000000004D71000-memory.dmp

Filesize
4KB

Download
memory/1892-123-0x0000000006790000-0x0000000006791000-memory.dmp

Filesize
4KB

Download
memory/1892-125-0x0000000004C30000-0x000000000512E000-memory.dmp

Filesize
5.0MB

Download
memory/1892-117-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

Filesize
4KB

Download
memory/1892-116-0x0000000005130000-0x0000000005131000-memory.dmp

Filesize
4KB

Download
memory/1892-124-0x0000000006680000-0x0000000006681000-memory.dmp

Filesize
4KB

Download
memory/3036-155-0x0000000000000000-mapping.dmp

Download
memory/3252-157-0x0000000000000000-mapping.dmp

Download
memory/3968-126-0x0000000000000000-mapping.dmp

Download
memory/3976-144-0x00000000062E0000-0x00000000062E1000-memory.dmp

Filesize
4KB

Download
memory/3976-143-0x00000000062C0000-0x00000000062CB000-memory.dmp

Filesize
44KB

Download
memory/3976-142-0x0000000004C10000-0x000000000510E000-memory.dmp

Filesize
5.0MB

Download
memory/3976-138-0x0000000004C10000-0x000000000510E000-memory.dmp

Filesize
5.0MB

Download
memory/3976-128-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads