nanocore | bdfc24d604f256170914e2f360d8b6ed30182fe8682fc11aa136dec7a5fb1876

Analysis

max time kernel
96s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2023, 16:03

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General

Target
cffcaceccd0c05762dc335f58a2f0932.exe
Size 783KB
Sample230201-thedraae92
SHA256 bdfc24d604f256170914e2f360d8b6ed30182fe8682fc11aa136dec7a5fb1876
MD5 cffcaceccd0c05762dc335f58a2f0932
SHA1 45fbb9ddf062f8b64ba3b8ace48767991517fa50
SHA512 d36de14335fd20c41420e3bfdf69481e3c011f99f4e586e2c91d0b2976f6cb88c9cc63e36f1638d9c647025df580cae947e28bb2aee8206af4990271941b0942
SSDEEP 24576:yLzyRU5BVftZtPOYkNc9/vgumFRXjVDaqG4yPa:SzyRU/VfbtGpU/vgum7Z7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

tzitziklishop.ddns.net:1665
127.0.0.1:1665

Mutex

be28fce4-4930-4ffe-96ed-0110cf99b889

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-11-05T12:54:30.362923036Z
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
1665
default_group
SecureKMT
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
be28fce4-4930-4ffe-96ed-0110cf99b889
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
tzitziklishop.ddns.net
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\UPNP Monitor = "C:\\Program Files (x86)\\UPNP Monitor\\upnpmon.exe"	cffcaceccd0c05762dc335f58a2f0932.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	cffcaceccd0c05762dc335f58a2f0932.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2216 set thread context of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UPNP Monitor\upnpmon.exe	cffcaceccd0c05762dc335f58a2f0932.exe
File opened for modification	C:\Program Files (x86)\UPNP Monitor\upnpmon.exe	cffcaceccd0c05762dc335f58a2f0932.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
3748	schtasks.exe
3916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4468	cffcaceccd0c05762dc335f58a2f0932.exe
4468	cffcaceccd0c05762dc335f58a2f0932.exe
4468	cffcaceccd0c05762dc335f58a2f0932.exe
4468	cffcaceccd0c05762dc335f58a2f0932.exe
4468	cffcaceccd0c05762dc335f58a2f0932.exe
4468	cffcaceccd0c05762dc335f58a2f0932.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4468	cffcaceccd0c05762dc335f58a2f0932.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4468	cffcaceccd0c05762dc335f58a2f0932.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 2216 wrote to memory of 4468	2216	cffcaceccd0c05762dc335f58a2f0932.exe	92
PID 4468 wrote to memory of 3748	4468	cffcaceccd0c05762dc335f58a2f0932.exe	93
PID 4468 wrote to memory of 3748	4468	cffcaceccd0c05762dc335f58a2f0932.exe	93
PID 4468 wrote to memory of 3748	4468	cffcaceccd0c05762dc335f58a2f0932.exe	93
PID 4468 wrote to memory of 3916	4468	cffcaceccd0c05762dc335f58a2f0932.exe	95
PID 4468 wrote to memory of 3916	4468	cffcaceccd0c05762dc335f58a2f0932.exe	95
PID 4468 wrote to memory of 3916	4468	cffcaceccd0c05762dc335f58a2f0932.exe	95

C:\Users\Admin\AppData\Local\Temp\cffcaceccd0c05762dc335f58a2f0932.exe
"C:\Users\Admin\AppData\Local\Temp\cffcaceccd0c05762dc335f58a2f0932.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\cffcaceccd0c05762dc335f58a2f0932.exe
  "C:\Users\Admin\AppData\Local\Temp\cffcaceccd0c05762dc335f58a2f0932.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:4468
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1906.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3748
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1984.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3916

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

cffcaceccd0c05762dc335f58a2f0932.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\cffcaceccd0c05762dc335f58a2f0932.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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tmp1906.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp1906.tmp
Size 1KB
SHA256 3e40f7e92c6f3ebabaa48b876659798ac74c313c7eda9bb67f0ecd67d8fb47f2
MD5 a560e3a12613ea409234173b88179e48
SHA1 b97fadda508225c87b2ffb03a5d1253a4d19c5db
SHA512 e4d07050544f7428c68fda1a28688026a556957001ad1bdc9a9ca2e323bdd9234c5250afccc037e377d59ef6e88e5c5b32eeec97521da63b86970373abf877d3
MD5 SHA1 SHA512

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tmp1984.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp1984.tmp
Size 1KB
SHA256 21d669a674eb23538f38f6822429d797e69e0685d18c0e6e03ec6801098b240a
MD5 c9a4c783d2e18eea86e071de92f36f02
SHA1 4cb02db05386ccb70a23fa89dbadfddfc8f7b6af
SHA512 b6d5198d9ca83687fcc491c02ad8b417e02dff0150b514c3d39d13b8de9ffba6f3779ee7bb6350b087474fb6e0d1bd10b8fdd5c8f48a46c9cfd183d9045b80ef
MD5 SHA1 SHA512

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memory/2216-135-0x0000000004B60000-0x0000000004B6A000-memory.dmp

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memory/2216-136-0x00000000086A0000-0x000000000873C000-memory.dmp

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memory/2216-132-0x0000000000220000-0x00000000002EA000-memory.dmp

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memory/2216-134-0x0000000004B80000-0x0000000004C12000-memory.dmp

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memory/2216-133-0x0000000005090000-0x0000000005634000-memory.dmp

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memory/4468-138-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4468-144-0x0000000007130000-0x0000000007196000-memory.dmp

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