nanocore | 502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131

General

Target

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe
Size

415KB
MD5

d38933af95b0124dc6c95c1f77a31fe0
SHA1

3627b2ab009a0d17a1d607848023188ce14883d8
SHA256

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131
SHA512

28c7dcdd8171870d023ac8f4b466db94a34a0d57832afdb7e5e4f672a33b893bd5335bf62d7ac8a95763641c56f83dea4549be33ebac2c6625038daf2db5a484
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7K:ITNYrnE3bm/CiejewY5vV

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
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
1.2.2.0
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

Processes:

ximo2ubzn1i.exe

pid	Process
2184	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

pid	Process
2344	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

regasm.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2184 set thread context of 2188	2184	ximo2ubzn1i.exe	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

regasm.exe502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exeximo2ubzn1i.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

regasm.exe

pid	Process
2188	regasm.exe
2188	regasm.exe
2188	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2188	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2188	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2344 wrote to memory of 2184	2344	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	30
PID 2344 wrote to memory of 2184	2344	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	30
PID 2344 wrote to memory of 2184	2344	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	30
PID 2344 wrote to memory of 2184	2344	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	30
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31
PID 2184 wrote to memory of 2188	2184	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe
"C:\Users\Admin\AppData\Local\Temp\502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2188

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

2

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

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
415KB

MD5
f5469b97d308ced5ae33c54924403306

SHA1
58e3bdc860c483ab7f3571cc2ffa84df2d2d88d2

SHA256
f503ad05d53d4d964dfc6534ad7bc83234471c7e5300abd3bc08453cc9a5ce53

SHA512
44d76a2fc6fffd34a3c5e7a2d447910e2a1512edeaddd3c968bedf760ccf0f59f2600973fa0a37062a9122f68e521a2f1812e958930035805082501da0a5ec13

Download Submit
memory/2184-15-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-34-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-33-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-14-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2184-13-0x00000000000D0000-0x000000000013E000-memory.dmp

Filesize
440KB

Download
memory/2188-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2188-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-32-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/2188-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-31-0x00000000003E0000-0x00000000003FE000-memory.dmp

Filesize
120KB

Download
memory/2188-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2188-30-0x00000000003D0000-0x00000000003DA000-memory.dmp

Filesize
40KB

Download
memory/2344-3-0x00000000009C0000-0x00000000009FC000-memory.dmp

Filesize
240KB

Download
memory/2344-0-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download
memory/2344-12-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2344-2-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2344-1-0x0000000000C50000-0x0000000000CBE000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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