nanocore | 7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271

General

Target

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe
Size

415KB
MD5

f61debd36a59e430fac76b567cfd6219
SHA1

7fa687e2571e52029c3c9b42d3ab08f73c770106
SHA256

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271
SHA512

1e9d5b8a33b3608c70a4317c048a4de16b7a143b9b74048deb4c95882eab826ff2708805c5e30b8dd3aa4927d78e9bd5f64e30b17e1bf7795b9ef4785264025b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7o:ITNYrnE3bm/CiejewY5vj

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:

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
1852	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.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 1852 set thread context of 5084	1852	ximo2ubzn1i.exe	87

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:

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.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
5084	regasm.exe
5084	regasm.exe
5084	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
5084	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	5084	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2004 wrote to memory of 1852	2004	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe	86
PID 2004 wrote to memory of 1852	2004	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe	86
PID 2004 wrote to memory of 1852	2004	7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe	86
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87
PID 1852 wrote to memory of 5084	1852	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe
"C:\Users\Admin\AppData\Local\Temp\7bccadd28e7ef2047c61b4f1e456d650766f9efbe36006ddf9d445df78f23271.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- 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:1852
- - 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:5084

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
f6ec53d1afd2e7cae634f793faaf3f29

SHA1
7f28aa0d7eb8905c61ad75f4523315a5385a55c0

SHA256
a6820ff7bcaa2a33838ba654ca12b5394e0b367e1918e6348d3ef13ed60602f8

SHA512
8c112d1e3ca655232beb2e0059ff35cb66b949e89d98e72aa40245b782e68e443c22b37535d54da21e047c78f18a92a6420844dea98540da8ed5d7e7e9d9a460

Download Submit
memory/1852-35-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1852-33-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1852-22-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/1852-20-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/2004-5-0x0000000005070000-0x000000000507A000-memory.dmp

Filesize
40KB

Download
memory/2004-6-0x0000000005C10000-0x0000000005C4C000-memory.dmp

Filesize
240KB

Download
memory/2004-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/2004-4-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/2004-21-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/2004-3-0x00000000050B0000-0x0000000005142000-memory.dmp

Filesize
584KB

Download
memory/2004-1-0x0000000000600000-0x000000000066E000-memory.dmp

Filesize
440KB

Download
memory/2004-2-0x0000000005660000-0x0000000005C04000-memory.dmp

Filesize
5.6MB

Download
memory/5084-27-0x0000000074790000-0x0000000074F40000-memory.dmp

Filesize
7.7MB

Download
memory/5084-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5084-28-0x0000000005100000-0x000000000519C000-memory.dmp

Filesize
624KB

Download
memory/5084-30-0x0000000005400000-0x000000000540A000-memory.dmp

Filesize
40KB

Download
memory/5084-31-0x0000000005DD0000-0x0000000005DEE000-memory.dmp

Filesize
120KB

Download
memory/5084-32-0x0000000006000000-0x000000000600A000-memory.dmp

Filesize
40KB

Download
memory/5084-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5084-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5084-36-0x0000000074790000-0x0000000074F40000-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