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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
3940	ximo2ubzn1i.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-1-5-21-1302416131-1437503476-2806442725-1000\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 3940 set thread context of 2812	3940	ximo2ubzn1i.exe	83

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:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exeximo2ubzn1i.exeregasm.exe

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

regasm.exe

pid	Process
2812	regasm.exe
2812	regasm.exe
2812	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2812	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2812	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 1032 wrote to memory of 3940	1032	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	82
PID 1032 wrote to memory of 3940	1032	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	82
PID 1032 wrote to memory of 3940	1032	502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe	82
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83
PID 3940 wrote to memory of 2812	3940	ximo2ubzn1i.exe	83

C:\Users\Admin\AppData\Local\Temp\502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe
"C:\Users\Admin\AppData\Local\Temp\502e2fd57652e217cbe36ae9d37c4a73abf8ab444ee69b25f5504a39795cf131N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1032
- 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:3940
- - 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:2812

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

Query Registry

1

T1012

System Information Discovery

3

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

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

Filesize
415KB

MD5
c136453d42325e36c42cbad4be9928a0

SHA1
dc23364e310d5473177017ba78bfb45e328a21c3

SHA256
883f1e68f8db97733aa3851f3a3359fc71c1062cd66e1b71e217b5ecaccec036

SHA512
4977b49e08fe77c0a59da53ea4ff6e4b10d2bb73cc566b6e30e3f5fe2b3f3aa9e63ada566858c98a375612864c4d85a677c014018f94fb9753320df5177dd983

Download Submit
memory/1032-21-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1032-1-0x0000000000470000-0x00000000004DE000-memory.dmp

Filesize
440KB

Download
memory/1032-2-0x0000000005440000-0x00000000059E4000-memory.dmp

Filesize
5.6MB

Download
memory/1032-3-0x0000000004F30000-0x0000000004FC2000-memory.dmp

Filesize
584KB

Download
memory/1032-4-0x0000000004EE0000-0x0000000004EEA000-memory.dmp

Filesize
40KB

Download
memory/1032-5-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/1032-6-0x0000000005280000-0x00000000052BC000-memory.dmp

Filesize
240KB

Download
memory/1032-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/2812-28-0x0000000004ED0000-0x0000000004F6C000-memory.dmp

Filesize
624KB

Download
memory/2812-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-27-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2812-30-0x0000000004EA0000-0x0000000004EAA000-memory.dmp

Filesize
40KB

Download
memory/2812-31-0x0000000005110000-0x000000000512E000-memory.dmp

Filesize
120KB

Download
memory/2812-32-0x0000000005D70000-0x0000000005D7A000-memory.dmp

Filesize
40KB

Download
memory/2812-36-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-22-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-20-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-33-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-35-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads