nanocore | 93e2ba272cce84fa13eac9b5f393e15a55c3719d59651c60bd3b8f27136fef59

General

Target

7c5fefe93d62fc7ce29b236be8235197.exe
Size

1.2MB
MD5

7c5fefe93d62fc7ce29b236be8235197
SHA1

882eabe9a067575521065329b923dc9fe61fa6d9
SHA256

93e2ba272cce84fa13eac9b5f393e15a55c3719d59651c60bd3b8f27136fef59
SHA512

38c75753e8fd7531111befcff012e5fea95863de95329ecff117d6989e4177b0b53a42857d14901f122e66b07d9207b907f8d7b9f6a1d9ce49eac1a10149c0a7
SSDEEP

24576:9AHnh+eWsN3skA4RV1Hom2KXMmHaFZyrh9QI/C+EZCBqUIYXmf8MuvWzD:ch+ZkldoPK8YaFZyri7QPIYXLMr

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

megida.hopto.org:8822

Mutex

0622add8-a38b-49c1-8dc8-c09cf4320fc4

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-03-11T12:24:33.692689636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8822
default_group
NewLappi
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
0622add8-a38b-49c1-8dc8-c09cf4320fc4
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
megida.hopto.org
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sdchange.lnk	7c5fefe93d62fc7ce29b236be8235197.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3000 set thread context of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
2576	RegAsm.exe
2576	RegAsm.exe
2576	RegAsm.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2576	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3000	7c5fefe93d62fc7ce29b236be8235197.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2576	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe
3000	7c5fefe93d62fc7ce29b236be8235197.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30
PID 3000 wrote to memory of 2576	3000	7c5fefe93d62fc7ce29b236be8235197.exe	30

C:\Users\Admin\AppData\Local\Temp\7c5fefe93d62fc7ce29b236be8235197.exe
"C:\Users\Admin\AppData\Local\Temp\7c5fefe93d62fc7ce29b236be8235197.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2576-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-9-0x0000000073B90000-0x000000007413B000-memory.dmp

Filesize
5.7MB

Download
memory/2576-11-0x0000000000170000-0x00000000001B0000-memory.dmp

Filesize
256KB

Download
memory/2576-12-0x0000000073B90000-0x000000007413B000-memory.dmp

Filesize
5.7MB

Download
memory/2576-13-0x0000000000170000-0x00000000001B0000-memory.dmp

Filesize
256KB

Download
memory/3000-3-0x0000000000940000-0x0000000000943000-memory.dmp

Filesize
12KB

Download

Analysis

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