nanocore | f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1

Analysis

max time kernel
146s
max time network
148s
platform
windows7_x64
resource
win7-en-20211014
submitted
19-10-2021 09:46

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General

Target

ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
Size

1017KB
MD5

d8c80c66f244e2ca231c63fedd224b60
SHA1

ea1ad6b294e2fdbff73e3e73423273a18e0689b8
SHA256

f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1
SHA512

e1f2feb64ff01b750e8d2785329ac66fea323a9e09dc5cf7bd5d04aea572b3649cd66168b49fc4cfbd955dd9684284c615a49f96f87b910326b88555dce5560d

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

185.19.85.134:8976

Mutex

63cecd42-3b39-449c-948f-422745928f22

Attributes

activate_away_mode
true
backup_connection_host
185.19.85.134
backup_dns_server
buffer_size
65535
build_time
2021-06-13T20:53:24.407775236Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
8976
default_group
MY FILE
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
63cecd42-3b39-449c-948f-422745928f22
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.19.85.134
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
Executes dropped EXE 2 IoCs

Processes:

A.exeInstallUtil.exe

pid process

596 A.exe
1708 InstallUtil.exe
Loads dropped DLL 3 IoCs

Processes:

ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exeA.exe

pid process

1548 ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
1548 ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
596 A.exe

pid	process
596	A.exe
1708	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

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

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1548-58-0x0000000000340000-0x0000000000361000-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
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\A = "C:\\Users\\Admin\\AppData\\Roaming\\A.exe"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Service = "C:\\Program Files (x86)\\SMTP Service\\smtpsvc.exe"	InstallUtil.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:

A.exe

description pid process target process

PID 596 set thread context of 1708 596 A.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 596 set thread context of 1708	596	A.exe	InstallUtil.exe

Drops file in Program Files directory 2 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	InstallUtil.exe
File opened for modification	C:\Program Files (x86)\SMTP Service\smtpsvc.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

1172 schtasks.exe
2020 schtasks.exe

pid	process
1172	schtasks.exe
2020	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exeA.exeInstallUtil.exe

pid	process
1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
596	A.exe
596	A.exe
1708	InstallUtil.exe
1708	InstallUtil.exe
1708	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

InstallUtil.exe

pid process

1708 InstallUtil.exe

pid	process
1708	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exeA.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
Token: SeDebugPrivilege	596	A.exe
Token: SeDebugPrivilege	1708	InstallUtil.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

ea1ad6b294e2fdbff73e3e73423273a18e0689b8.execmd.exeA.exeInstallUtil.exe

description	pid	process	target process
PID 1548 wrote to memory of 576	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	cmd.exe
PID 1548 wrote to memory of 576	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	cmd.exe
PID 1548 wrote to memory of 576	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	cmd.exe
PID 1548 wrote to memory of 576	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	cmd.exe
PID 576 wrote to memory of 568	576	cmd.exe	reg.exe
PID 576 wrote to memory of 568	576	cmd.exe	reg.exe
PID 576 wrote to memory of 568	576	cmd.exe	reg.exe
PID 576 wrote to memory of 568	576	cmd.exe	reg.exe
PID 1548 wrote to memory of 596	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	A.exe
PID 1548 wrote to memory of 596	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	A.exe
PID 1548 wrote to memory of 596	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	A.exe
PID 1548 wrote to memory of 596	1548	ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe	A.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 596 wrote to memory of 1708	596	A.exe	InstallUtil.exe
PID 1708 wrote to memory of 1172	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 1172	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 1172	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 1172	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 2020	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 2020	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 2020	1708	InstallUtil.exe	schtasks.exe
PID 1708 wrote to memory of 2020	1708	InstallUtil.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe
"C:\Users\Admin\AppData\Local\Temp\ea1ad6b294e2fdbff73e3e73423273a18e0689b8.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "A" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\A.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:576

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "A" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\A.exe"
3⤵
- Adds Run key to start application
PID:568

C:\Users\Admin\AppData\Roaming\A.exe
"C:\Users\Admin\AppData\Roaming\A.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:596

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:1708

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp53DA.tmp"
4⤵
- Creates scheduled task(s)
PID:1172

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5533.tmp"
4⤵
- Creates scheduled task(s)
PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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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\tmp53DA.tmp
MD5
f7eb19c49b51cdff67a25c6876a78241

SHA1
6d86be501c2fb57b50292a55d3983b7eee8a688d

SHA256
c9dab73a0044021d2acbc3952b19dea98cdfd838afc633197bd1bd12d2562fba

SHA512
1e94e363f9d4d0dcdfe0a8457642fcfe4f81dff0b39f1d1f00deab9291e133cd40b48c097dfe52c356d4a15c383e0aa08fae28b136937bcc57d5e01861716740

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5533.tmp
MD5
cfae5a3b7d8aa9653fe2512578a0d23a

SHA1
a91a2f8daef114f89038925ada6784646a0a5b12

SHA256
2ab741415f193a2a9134eac48a2310899d18efb5e61c3e81c35140a7efea30fa

SHA512
9dfd7eca6924ae2785ce826a447b6ce6d043c552fbd3b8a804ce6722b07a74900e703dc56cd4443cae9ab9601f21a6068e29771e48497a9ae434096a11814e84

Download Submit
C:\Users\Admin\AppData\Roaming\A.exe
MD5
d8c80c66f244e2ca231c63fedd224b60

SHA1
ea1ad6b294e2fdbff73e3e73423273a18e0689b8

SHA256
f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1

SHA512
e1f2feb64ff01b750e8d2785329ac66fea323a9e09dc5cf7bd5d04aea572b3649cd66168b49fc4cfbd955dd9684284c615a49f96f87b910326b88555dce5560d

Download Submit
C:\Users\Admin\AppData\Roaming\A.exe
MD5
d8c80c66f244e2ca231c63fedd224b60

SHA1
ea1ad6b294e2fdbff73e3e73423273a18e0689b8

SHA256
f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1

SHA512
e1f2feb64ff01b750e8d2785329ac66fea323a9e09dc5cf7bd5d04aea572b3649cd66168b49fc4cfbd955dd9684284c615a49f96f87b910326b88555dce5560d

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

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Roaming\A.exe
MD5
d8c80c66f244e2ca231c63fedd224b60

SHA1
ea1ad6b294e2fdbff73e3e73423273a18e0689b8

SHA256
f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1

SHA512
e1f2feb64ff01b750e8d2785329ac66fea323a9e09dc5cf7bd5d04aea572b3649cd66168b49fc4cfbd955dd9684284c615a49f96f87b910326b88555dce5560d

Download Submit
\Users\Admin\AppData\Roaming\A.exe
MD5
d8c80c66f244e2ca231c63fedd224b60

SHA1
ea1ad6b294e2fdbff73e3e73423273a18e0689b8

SHA256
f9337398a48f0413aea89ded96ec89c50094eb8485027d8792b84f96843462a1

SHA512
e1f2feb64ff01b750e8d2785329ac66fea323a9e09dc5cf7bd5d04aea572b3649cd66168b49fc4cfbd955dd9684284c615a49f96f87b910326b88555dce5560d

Download Submit
memory/568-60-0x0000000000000000-mapping.dmp

Download
memory/576-59-0x0000000000000000-mapping.dmp

Download
memory/596-67-0x0000000000860000-0x0000000000861000-memory.dmp

Filesize
4KB

Download
memory/596-69-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/596-71-0x0000000000511000-0x0000000000512000-memory.dmp

Filesize
4KB

Download
memory/596-72-0x00000000005E0000-0x00000000005EB000-memory.dmp

Filesize
44KB

Download
memory/596-73-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/596-64-0x0000000000000000-mapping.dmp

Download
memory/1172-86-0x0000000000000000-mapping.dmp

Download
memory/1548-55-0x0000000000A10000-0x0000000000A11000-memory.dmp

Filesize
4KB

Download
memory/1548-57-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/1548-61-0x0000000000C91000-0x0000000000C92000-memory.dmp

Filesize
4KB

Download
memory/1548-58-0x0000000000340000-0x0000000000361000-memory.dmp

Filesize
132KB

Download
memory/1708-77-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-81-0x000000000041E792-mapping.dmp

Download
memory/1708-80-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-83-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-85-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/1708-79-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-78-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-76-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1708-90-0x0000000000260000-0x0000000000265000-memory.dmp

Filesize
20KB

Download
memory/1708-91-0x0000000000370000-0x0000000000389000-memory.dmp

Filesize
100KB

Download
memory/1708-92-0x0000000000390000-0x0000000000393000-memory.dmp

Filesize
12KB

Download
memory/2020-88-0x0000000000000000-mapping.dmp

Download