nanocore | 3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335

Analysis

max time kernel
117s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 09:41

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General

Target
POP.exe
Size 660KB
Sample240425-lnrl9she29
SHA256 3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335
MD5 46d06b32a50fd0c1a1981695e6504aa5
SHA1 562f1b0f554ab339d851e7c031059d20a1c88af6
SHA512 c6ff00d37a3d8f8716df5a67d5f6e16bec0ec1a5ea4625138651ca8bc43ffda9e4ff77c158803d3399aa7543ec88dd37551215f60e159d226ac307cfd6e4cb44
SSDEEP 12288:nYIPXjeFKYoJyZTH5Zx161j9QMRLPfVtc1qHNanyP8POCxU:nYIPGKYokbF01j9b1tcoMyP8POCy
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

amechi.duckdns.org:4190

Mutex

1e951a16-0899-4a49-9bed-fad9fc6657d1

Attributes

activate_away_mode
true
backup_connection_host
amechi.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-02-05T10:09:03.565293536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4190
default_group
clement
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
1e951a16-0899-4a49-9bed-fad9fc6657d1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
amechi.duckdns.org
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NAS Host = "C:\\Program Files (x86)\\NAS Host\\nashost.exe"	POP.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	POP.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 2448	2040	POP.exe	35

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\NAS Host\nashost.exe	POP.exe
File created	C:\Program Files (x86)\NAS Host\nashost.exe	POP.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2040	WerFault.exe	27

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
3044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
2040	POP.exe
2040	POP.exe
2040	POP.exe
2040	POP.exe
2040	POP.exe
2540	powershell.exe
2392	powershell.exe
2040	POP.exe
2040	POP.exe
2040	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe
2448	POP.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	POP.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	POP.exe
Token: SeDebugPrivilege	2540	powershell.exe
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeDebugPrivilege	2448	POP.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2540	2040	POP.exe	28
PID 2040 wrote to memory of 2540	2040	POP.exe	28
PID 2040 wrote to memory of 2540	2040	POP.exe	28
PID 2040 wrote to memory of 2540	2040	POP.exe	28
PID 2040 wrote to memory of 2392	2040	POP.exe	30
PID 2040 wrote to memory of 2392	2040	POP.exe	30
PID 2040 wrote to memory of 2392	2040	POP.exe	30
PID 2040 wrote to memory of 2392	2040	POP.exe	30
PID 2040 wrote to memory of 3044	2040	POP.exe	31
PID 2040 wrote to memory of 3044	2040	POP.exe	31
PID 2040 wrote to memory of 3044	2040	POP.exe	31
PID 2040 wrote to memory of 3044	2040	POP.exe	31
PID 2040 wrote to memory of 2404	2040	POP.exe	34
PID 2040 wrote to memory of 2404	2040	POP.exe	34
PID 2040 wrote to memory of 2404	2040	POP.exe	34
PID 2040 wrote to memory of 2404	2040	POP.exe	34
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2448	2040	POP.exe	35
PID 2040 wrote to memory of 2800	2040	POP.exe	36
PID 2040 wrote to memory of 2800	2040	POP.exe	36
PID 2040 wrote to memory of 2800	2040	POP.exe	36
PID 2040 wrote to memory of 2800	2040	POP.exe	36

C:\Users\Admin\AppData\Local\Temp\POP.exe
"C:\Users\Admin\AppData\Local\Temp\POP.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\POP.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CXAoYUE.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2392
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CXAoYUE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C4A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3044
- C:\Users\Admin\AppData\Local\Temp\POP.exe
  "C:\Users\Admin\AppData\Local\Temp\POP.exe"
  2⤵
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\POP.exe
  "C:\Users\Admin\AppData\Local\Temp\POP.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
  PID:2448
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1016
  2⤵
  - Program crash
  PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp6C4A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp6C4A.tmp
Size 1KB
SHA256 3c9eedf6d3874ecd7fe0bfb039cf3153ad130528b7ae6b487e42686ca92f1158
MD5 6d0ab94f6c663e059ad168638f8e09e5
SHA1 7de762472144dabcdb85d166feb5ac53bcf22bc1
SHA512 e179e3a09f200f4a82702b60ca4029ab78747d2b681194605bd2939e1c064f13eb0bfbf295fdbc0d8dc8aa5d76d626e2fa63a7acfd7158975d1f11b762e2ef9a
MD5 SHA1 SHA512

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NAQQNZ0BRQJ95FF7RXTP.temp

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NAQQNZ0BRQJ95FF7RXTP.temp
Size 7KB
SHA256 48742b0c9d56b2ad68aac4abb697c91b2a3ce820300cd63699acaa0e312096e7
MD5 61d1bf8c5656905f60783b0bf6816dec
SHA1 a177bf64f3d6e078428ffa7bb7d7314531af62f7
SHA512 42b2fc0500d8e1437d33b5add920ce7760b1f4ff7822c996879f631dd50951e7fd4c26e9acd212eeea3357c1fb627fcd85cda75914591b7f274a4085215190eb
SSDEEP 96:UnZmC9M8QnqvsqvJCwoBs7nZmC9M8QnqvsEHyqvJCworHsZ5FR9QHwE0E7Y5SXlU:Ar8UoGr8AHnorq5l2P7Y5SC
MD5 SHA1 SHA512 SSDEEP

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memory/2040-0-0x0000000000920000-0x00000000009CC000-memory.dmp

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memory/2040-45-0x0000000001FB0000-0x0000000001FF0000-memory.dmp

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memory/2040-4-0x0000000000610000-0x0000000000624000-memory.dmp

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memory/2040-5-0x000000000A1D0000-0x000000000A24A000-memory.dmp

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memory/2040-2-0x0000000001FB0000-0x0000000001FF0000-memory.dmp

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memory/2040-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp

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memory/2040-43-0x00000000743E0000-0x0000000074ACE000-memory.dmp

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memory/2040-3-0x0000000000550000-0x0000000000570000-memory.dmp

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memory/2392-20-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2392-51-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2392-28-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2392-26-0x0000000002A30000-0x0000000002A70000-memory.dmp

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memory/2392-34-0x0000000002A30000-0x0000000002A70000-memory.dmp

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memory/2392-30-0x0000000002A30000-0x0000000002A70000-memory.dmp

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memory/2448-40-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-50-0x0000000000460000-0x000000000047E000-memory.dmp

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memory/2448-69-0x0000000004810000-0x0000000004850000-memory.dmp

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memory/2448-25-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2448-60-0x0000000000910000-0x0000000000922000-memory.dmp

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memory/2448-61-0x0000000002090000-0x000000000209C000-memory.dmp

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memory/2448-37-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-21-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-42-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-62-0x00000000020E0000-0x00000000020EE000-memory.dmp

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memory/2448-44-0x00000000743E0000-0x0000000074ACE000-memory.dmp

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memory/2448-63-0x00000000020F0000-0x0000000002104000-memory.dmp

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memory/2448-49-0x0000000000450000-0x000000000045A000-memory.dmp

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memory/2448-46-0x0000000004810000-0x0000000004850000-memory.dmp

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memory/2448-65-0x0000000002210000-0x0000000002224000-memory.dmp

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memory/2448-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-29-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2448-53-0x0000000000490000-0x000000000049A000-memory.dmp

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memory/2448-55-0x00000000743E0000-0x0000000074ACE000-memory.dmp

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memory/2448-57-0x0000000000710000-0x0000000000722000-memory.dmp

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memory/2448-58-0x0000000000720000-0x000000000073A000-memory.dmp

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memory/2448-59-0x0000000000900000-0x000000000090E000-memory.dmp

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memory/2448-64-0x0000000002200000-0x0000000002210000-memory.dmp

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memory/2448-67-0x0000000002310000-0x000000000233E000-memory.dmp

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memory/2448-68-0x00000000022C0000-0x00000000022D4000-memory.dmp

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memory/2448-66-0x0000000002220000-0x000000000222E000-memory.dmp

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memory/2540-52-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2540-24-0x00000000029C0000-0x0000000002A00000-memory.dmp

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memory/2540-22-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2540-38-0x00000000029C0000-0x0000000002A00000-memory.dmp

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memory/2540-36-0x000000006DEB0000-0x000000006E45B000-memory.dmp

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memory/2540-32-0x00000000029C0000-0x0000000002A00000-memory.dmp

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