nanocore | 718b8c3293604c3626d2051074cd810f3d0b6508ff165f7363eaefbda8234322

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 19:40

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General

Target

wire transfer2.exe
Size

636KB
MD5

98edee6a736fd329af602c895531f560
SHA1

5fece25803bdcb0f283fe479c70fdcd06042421c
SHA256

bf1f247b36adba6085a563ea0d78d2a96cb4c523cbcbe2842a19dd214a0e655a
SHA512

f52986e5916f1f3bd1efb8d7f0f7aa79da8818adbacc8f48e1eb41c3571f5ec1e8289ff7f2c42f8e45a49eaef58bd2a68d3e27a9f6fc930f432ab7067795ecc3
SSDEEP

12288:BUSME+vHKKB9YP2BFc+2zgjSrN5bkab6zp8cDYd5AynZNE7y9toRSuFcUrlqk:5cfKLv+2zgkiVCqCvZNdoEuFcUQk

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

3b3fb7d2-e471-4b8f-930b-90a0b4d21b99

Attributes

activate_away_mode
true
backup_connection_host
amechi.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-30T09:04:45.886194136Z
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
PRINCE SA HANDWORK
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
3b3fb7d2-e471-4b8f-930b-90a0b4d21b99
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

Processes:

wire transfer2.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Manager = "C:\\Program Files (x86)\\DOS Manager\\dosmgr.exe" wire transfer2.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

wire transfer2.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA wire transfer2.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

wire transfer2.exe

description pid process target process

PID 3012 set thread context of 2580 3012 wire transfer2.exe wire transfer2.exe
Drops file in Program Files directory 2 IoCs

Processes:

wire transfer2.exe

description ioc process

File created C:\Program Files (x86)\DOS Manager\dosmgr.exe wire transfer2.exe
File opened for modification C:\Program Files (x86)\DOS Manager\dosmgr.exe wire transfer2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2660 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

wire transfer2.exewire transfer2.exe

pid process

3012 wire transfer2.exe
2580 wire transfer2.exe
2580 wire transfer2.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

wire transfer2.exe

pid process

2580 wire transfer2.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

wire transfer2.exewire transfer2.exe

description pid process

Token: SeDebugPrivilege 3012 wire transfer2.exe
Token: SeDebugPrivilege 2580 wire transfer2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Manager = "C:\\Program Files (x86)\\DOS Manager\\dosmgr.exe"	wire transfer2.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	wire transfer2.exe

description	pid	process	target process
PID 3012 set thread context of 2580	3012	wire transfer2.exe	wire transfer2.exe

description	ioc	process
File created	C:\Program Files (x86)\DOS Manager\dosmgr.exe	wire transfer2.exe
File opened for modification	C:\Program Files (x86)\DOS Manager\dosmgr.exe	wire transfer2.exe

pid	process
2660	schtasks.exe

pid	process
3012	wire transfer2.exe
2580	wire transfer2.exe
2580	wire transfer2.exe

pid	process
2580	wire transfer2.exe

description	pid	process
Token: SeDebugPrivilege	3012	wire transfer2.exe
Token: SeDebugPrivilege	2580	wire transfer2.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

wire transfer2.exe

description	pid	process	target process
PID 3012 wrote to memory of 2660	3012	wire transfer2.exe	schtasks.exe
PID 3012 wrote to memory of 2660	3012	wire transfer2.exe	schtasks.exe
PID 3012 wrote to memory of 2660	3012	wire transfer2.exe	schtasks.exe
PID 3012 wrote to memory of 2660	3012	wire transfer2.exe	schtasks.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe
PID 3012 wrote to memory of 2580	3012	wire transfer2.exe	wire transfer2.exe

C:\Users\Admin\AppData\Local\Temp\wire transfer2.exe
"C:\Users\Admin\AppData\Local\Temp\wire transfer2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3012

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AxXDlVIQlS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8833.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2660

C:\Users\Admin\AppData\Local\Temp\wire transfer2.exe
"{path}"
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:2580

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8833.tmp
Filesize
1KB

MD5
220839c721c6545e6d5a983cf2a67b89

SHA1
0bc17cfc47638bdfddc4abb10b1c866ce7d2e0d4

SHA256
e76356310c4e864aeb4145e1071333abf588bd0965076a50d16a01698d26f53a

SHA512
4861ad6e23d31307762301e7023e85d39f3c0f978b8426426d9c587dc52fc5b31e5bcf48627d234c09ecb3fa9e558a87d53007ea3ead39e701bd5cbca36da5cc

Download Submit
memory/2580-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-29-0x0000000000270000-0x000000000028E000-memory.dmp

Filesize
120KB

Download
memory/2580-28-0x0000000000220000-0x000000000022A000-memory.dmp

Filesize
40KB

Download
memory/2580-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2580-30-0x0000000000290000-0x000000000029A000-memory.dmp

Filesize
40KB

Download
memory/2580-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-3-0x0000000000560000-0x0000000000572000-memory.dmp

Filesize
72KB

Download
memory/3012-1-0x0000000000EE0000-0x0000000000F86000-memory.dmp

Filesize
664KB

Download
memory/3012-2-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/3012-0-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/3012-25-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/3012-6-0x0000000005CC0000-0x0000000005D4E000-memory.dmp

Filesize
568KB

Download
memory/3012-5-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/3012-4-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download