nanocore | 792ace133ae4d03c26c1e389ca5877b8f7caa6c81de1317c7e1c951e19d0118c

General

Target

f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
Size

234KB
MD5

74c354622f46923bee5182ca63fc1143
SHA1

6da3cb0a0fc7f16d9dccb864215ccaf3f840129d
SHA256

f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572
SHA512

f4232ee760c73db6158a4dd67a212e49d6d9b76d030be95b6089d3229551215efcb68c705b2fe2fa7ce8609a6f11381bfc70a054d55555ec36a4c993a0ec66f5
SSDEEP

6144:E7M9XS2Sf+57gXUYtltyOfYRd3UXon7qI8P5uwwW8oDLNxg:E4VB4UUlZYRd3UC7P+fwW8oDLP

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.233.116.105:3389

127.0.0.1:3389

Mutex

810685ff-01a4-43b6-a373-41359790eaeb

Attributes

activate_away_mode
false
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-07T14:02:20.733284136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
3389
default_group
Default
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
810685ff-01a4-43b6-a373-41359790eaeb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.233.116.105
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Monitor = "C:\\Program Files (x86)\\IMAP Monitor\\imapmon.exe"	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.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	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
File opened for modification	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
Token: SeDebugPrivilege	2796	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30
PID 2968 wrote to memory of 2796	2968	f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe	30

C:\Users\Admin\AppData\Local\Temp\f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
"C:\Users\Admin\AppData\Local\Temp\f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
  C:\Users\Admin\AppData\Local\Temp\f22478abb9f74da96c1d0b69eb1e0326f4a882de03711d29be2fe286fc6e2572.exe
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2796-13-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/2796-10-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-18-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-3-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2796-5-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2796-7-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2796-17-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-9-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-16-0x0000000000550000-0x000000000055A000-memory.dmp

Filesize
40KB

Download
memory/2796-15-0x00000000004E0000-0x00000000004FE000-memory.dmp

Filesize
120KB

Download
memory/2796-14-0x00000000004D0000-0x00000000004DC000-memory.dmp

Filesize
48KB

Download
memory/2968-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2968-8-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2968-1-0x0000000001170000-0x00000000011B4000-memory.dmp

Filesize
272KB

Download
memory/2968-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads