nanocore | d4810df62c42b3e525e4662fba9b4fe9d1916bc88087bf8ded45a00ea02680f9

Analysis

max time kernel
144s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 03:29

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General

Target

invoice.exe
Size

427KB
MD5

c9521986c45818165a3344c4ad821d17
SHA1

59360e8cda98f594c57dbec84484ef3c7a953dd9
SHA256

a68d6f1f8eac6e726187af10e2c6a7372696792cfd1b73eecbe4b77a874590a7
SHA512

da06e36625034650f93500c874c77f7d3ffa66a7d3043c01daeea74b04f5219561b43de5fb563dbd72165726e325b86f5a985a1ecbb7823766f7ffb61d13beef
SSDEEP

6144:Vs6sCfPRYwK+8sl7gNLmn8FY90SMjFWVLlIgMHxuPw+Qr8iGdPVbpqH:FPRYw0mgNLm8GezgM0cr/Go

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

kskent.dynu.net:333

127.0.0.1:333

Mutex

4d94aa95-8442-4268-a4c7-1d0109c44f55

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-24T03:50:49.960434136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
333
default_group
2020
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
4d94aa95-8442-4268-a4c7-1d0109c44f55
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kskent.dynu.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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 whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

invoice.exe

description ioc process

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

Processes:

invoice.exe

description pid process target process

PID 2036 set thread context of 2568 2036 invoice.exe invoice.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
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

Processes:

schtasks.exe

pid process

2572 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

invoice.exeinvoice.exe

pid process

2036 invoice.exe
2568 invoice.exe
2568 invoice.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

invoice.exe

pid process

2568 invoice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

invoice.exeinvoice.exe

description pid process

Token: SeDebugPrivilege 2036 invoice.exe
Token: SeDebugPrivilege 2568 invoice.exe

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

description	pid	process	target process
PID 2036 set thread context of 2568	2036	invoice.exe	invoice.exe

pid	process
2572	schtasks.exe

pid	process
2036	invoice.exe
2568	invoice.exe
2568	invoice.exe

pid	process
2568	invoice.exe

description	pid	process
Token: SeDebugPrivilege	2036	invoice.exe
Token: SeDebugPrivilege	2568	invoice.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

invoice.exe

description	pid	process	target process
PID 2036 wrote to memory of 2572	2036	invoice.exe	schtasks.exe
PID 2036 wrote to memory of 2572	2036	invoice.exe	schtasks.exe
PID 2036 wrote to memory of 2572	2036	invoice.exe	schtasks.exe
PID 2036 wrote to memory of 2572	2036	invoice.exe	schtasks.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe
PID 2036 wrote to memory of 2568	2036	invoice.exe	invoice.exe

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FgBAmhwboOZYD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp250E.tmp"
2⤵
- Creates scheduled task(s)
PID:2572

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"{path}"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2568

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp250E.tmp
Filesize
1KB

MD5
a259096d942103c863dfb0ac2cd6ba66

SHA1
296e8f135b77457ee7166921a20c51bf25a9254b

SHA256
ba15635cd90377f46d7596ad5b6040c6087a625dd1e56ab78e8065cf22670d4f

SHA512
890373113a45e96bd80237a916834f0b0dd3686413ee4f33b943e99522e99deedc756309350866b284465d9f897d59e991ed6443423b7adb64a120b1558cbca6

Download Submit
memory/2036-0-0x0000000074A91000-0x0000000074A92000-memory.dmp

Filesize
4KB

Download
memory/2036-1-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/2036-2-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/2036-3-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/2036-24-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-25-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download
memory/2568-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2568-27-0x0000000074A90000-0x000000007503B000-memory.dmp

Filesize
5.7MB

Download