nanocore | 1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816

General

Target

1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe
Size

856KB
MD5

e5648e9a8a12a6265e98ce3d55ea2c93
SHA1

2706913a00c4ec408adca61ee444bcc12ced4359
SHA256

1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816
SHA512

b640ff09214175ce877cfc39e7c484c40936099419ee012822e75901f2e6960fd33815c40a0f291cafaea534517b0e13429e357a785bd4cc8cf45fb676a1aa44
SSDEEP

12288:C7hMXSLzi8WYkP8DE73tn8dTjU8EXtdxwRD+bVercj92B/DwcR7rGNrkty0fkhAe:mOXwi8Rd6tBRZw1+bMcB2BErmyFAe

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.1.1

C2

Green.Mexican.jumpingcrab.com:7048

Mutex

fa975a9b-ca08-4453-bef9-30b8fe1021c2

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2014-10-22T07:03:28.971893736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7048
default_group
Miners
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
fa975a9b-ca08-4453-bef9-30b8fe1021c2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
Green.Mexican.jumpingcrab.com
primary_dns_server
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
1.2.1.1
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 1 IoCs

pid	Process
1512	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.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	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 944 set thread context of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1512	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe
1512	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1512	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28
PID 944 wrote to memory of 1512	944	1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe	28

C:\Users\Admin\AppData\Local\Temp\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe
"C:\Users\Admin\AppData\Local\Temp\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Roaming\Microsoft\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1512

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Filesize
3KB

MD5
0f23e02eee910cca425990e1c2309541

SHA1
ae625a1f94396f82b8179a95873f8007a3e70604

SHA256
9bec436d55d25522e860306343d1617437e2a4fec68b4438282eb60510a7f517

SHA512
c7c88a84e36b32c1c2e6fe3890748f2857b7b4e96ca6a6d543f610446428f15a5f139be8abc577f8afde503c4c5269b5bf33731433be2ecd06a9da4497fd16ed

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\1b5b3a27e0d3501be28217726dff174793a039344611c854e37162aa8d43b816.exe

Filesize
3KB

MD5
0f23e02eee910cca425990e1c2309541

SHA1
ae625a1f94396f82b8179a95873f8007a3e70604

SHA256
9bec436d55d25522e860306343d1617437e2a4fec68b4438282eb60510a7f517

SHA512
c7c88a84e36b32c1c2e6fe3890748f2857b7b4e96ca6a6d543f610446428f15a5f139be8abc577f8afde503c4c5269b5bf33731433be2ecd06a9da4497fd16ed

Download Submit
memory/944-54-0x000007FEF3570000-0x000007FEF3F93000-memory.dmp

Filesize
10.1MB

Download
memory/944-55-0x000007FEED820000-0x000007FEEE8B6000-memory.dmp

Filesize
16.6MB

Download
memory/1512-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-57-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-66-0x000000000041EDAE-mapping.dmp

Download
memory/1512-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-56-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1512-73-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/1512-74-0x0000000074040000-0x00000000745EB000-memory.dmp

Filesize
5.7MB

Download
memory/1512-75-0x0000000074040000-0x00000000745EB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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