nanocore | 7618bf00136b85af624ec2d4b10f52aca8d61cab901499e1abecf0af43f5eb8d

Analysis

max time kernel
91s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
12/07/2022, 23:21

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General

Target
84ed0d0b3c05b34e05be11d41b343c5f.exe
Size 722KB
Sample220712-3by91sfehr
SHA256 7618bf00136b85af624ec2d4b10f52aca8d61cab901499e1abecf0af43f5eb8d
MD5 84ed0d0b3c05b34e05be11d41b343c5f
SHA1 c89472206c0cfd71100b118819e0d75bbf3dfb36
SHA512 a41d0b6cce87bff1688bacaf0f10f446c38696acbe676d2fbc8899476a68a191ff1b05ff793c243d8ce37586c81cb79c2b297c3307a36d9e9ffd148d849814f1
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

donaldossoinc.hopto.org:1492
127.0.0.1:1492

Mutex

64e137c2-af3f-4cd0-8061-bb60ec374d73

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-21T23:56:55.655479536Z
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
1492
default_group
JulyFile
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
64e137c2-af3f-4cd0-8061-bb60ec374d73
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
donaldossoinc.hopto.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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe"	84ed0d0b3c05b34e05be11d41b343c5f.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	84ed0d0b3c05b34e05be11d41b343c5f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3144 set thread context of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	84ed0d0b3c05b34e05be11d41b343c5f.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	84ed0d0b3c05b34e05be11d41b343c5f.exe

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

pid	Process
3188	schtasks.exe
1708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
376	84ed0d0b3c05b34e05be11d41b343c5f.exe
376	84ed0d0b3c05b34e05be11d41b343c5f.exe
376	84ed0d0b3c05b34e05be11d41b343c5f.exe
376	84ed0d0b3c05b34e05be11d41b343c5f.exe
376	84ed0d0b3c05b34e05be11d41b343c5f.exe
376	84ed0d0b3c05b34e05be11d41b343c5f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
376	84ed0d0b3c05b34e05be11d41b343c5f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	376	84ed0d0b3c05b34e05be11d41b343c5f.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 3144 wrote to memory of 376	3144	84ed0d0b3c05b34e05be11d41b343c5f.exe	91
PID 376 wrote to memory of 3188	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	92
PID 376 wrote to memory of 3188	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	92
PID 376 wrote to memory of 3188	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	92
PID 376 wrote to memory of 1708	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	94
PID 376 wrote to memory of 1708	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	94
PID 376 wrote to memory of 1708	376	84ed0d0b3c05b34e05be11d41b343c5f.exe	94

C:\Users\Admin\AppData\Local\Temp\84ed0d0b3c05b34e05be11d41b343c5f.exe
"C:\Users\Admin\AppData\Local\Temp\84ed0d0b3c05b34e05be11d41b343c5f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3144
- C:\Users\Admin\AppData\Local\Temp\84ed0d0b3c05b34e05be11d41b343c5f.exe
  "C:\Users\Admin\AppData\Local\Temp\84ed0d0b3c05b34e05be11d41b343c5f.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
  - Suspicious use of WriteProcessMemory
  PID:376
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6189.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3188
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6293.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1708

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

84ed0d0b3c05b34e05be11d41b343c5f.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\84ed0d0b3c05b34e05be11d41b343c5f.exe.log
Size 1KB
SHA256 a75686eed807c36b056311dddc898582fd4063135fc5728d2bdd3c6e1f5ab688
MD5 fc57dcb1a143324278cf61d88f8c67ad
SHA1 807d546b4296091d11a8df6a11157a5f12dd7fd5
SHA512 33ac55a68ac8371bf00af55e38455e886dc6aa681388622a55bf4473b1f4eda4d75a8211ea61df288ccdb26e838785da08094a7f1aac878da6ccd2e573f3bcb8
MD5 SHA1 SHA512

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tmp6189.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp6189.tmp
Size 1KB
SHA256 29b220715648d95028da4899bcdcf0f63e01958618c0e533d0957734ce96c5a2
MD5 0e93d544d7c24d719d5a8a8f6cbbf592
SHA1 5e19bfdf6b8eec286223ab96f58b6fdad514580c
SHA512 caf8b8ee2bb7ffe22dbca910c51ad0632f9772f3ebd1d482769abcfbf34fc03ca4b18515a9c45b8d7f7d47912419315282bbceffe95c2aca14bb153337596bf6
MD5 SHA1 SHA512

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tmp6293.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp6293.tmp
Size 1KB
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d
MD5 SHA1 SHA512

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memory/376-137-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3144-133-0x0000000006F20000-0x0000000006F2A000-memory.dmp

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memory/3144-135-0x000000000AF10000-0x000000000AF76000-memory.dmp

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memory/3144-134-0x000000000AE70000-0x000000000AF0C000-memory.dmp

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memory/3144-130-0x0000000000490000-0x000000000054C000-memory.dmp

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memory/3144-132-0x0000000004DA0000-0x0000000004E32000-memory.dmp

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memory/3144-131-0x0000000005270000-0x0000000005814000-memory.dmp

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