nanocore | 317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3c

General

Target

317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe
Size

416KB
MD5

98a5b7aae088d08f55b0a85507368c90
SHA1

55a57c1759e564d09a48b844f4abe2ae5b72ea9f
SHA256

317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3c
SHA512

4ef5f2eba9718efc30e3bb4dd6e2577a4573d1bd579eff28951f60c580d4be0de05690f902df04a2101ee74887ac07e00762abf552bc5f6d3268e544f75d62dc
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7p:ITNYrnE3bm/CiejewY5vC

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
Nanocore family
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe

Executes dropped EXE 1 IoCs

pid	Process
440	ximo2ubzn1i.exe

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\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.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	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 440 set thread context of 1056	440	ximo2ubzn1i.exe	85

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.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

pid	Process
1056	regasm.exe
1056	regasm.exe
1056	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1056	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1332 wrote to memory of 440	1332	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe	84
PID 1332 wrote to memory of 440	1332	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe	84
PID 1332 wrote to memory of 440	1332	317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe	84
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85
PID 440 wrote to memory of 1056	440	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe
"C:\Users\Admin\AppData\Local\Temp\317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1332
- 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:440
- - 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:1056

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
416KB

MD5
ccaa2092bed10787d7e0e57af6bd1191

SHA1
c5c48ba94812a011c8381e71fa433215b780ca0d

SHA256
7875a2217fd249ceead08772cd87e4e00781f0a62bf607ef9bf14dbeb2c2b705

SHA512
b22167080d180d64d7e513577bcec8070547c832bfa6d5f307f78905d796a86c53d5f5a68ee79e08ea07db05b0bcfbbc6fdb2987e19161cb0248ea992bb93c2c

Download Submit
memory/440-35-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/440-33-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/440-22-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/440-20-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1056-28-0x0000000005140000-0x00000000051DC000-memory.dmp

Filesize
624KB

Download
memory/1056-32-0x0000000006020000-0x000000000602A000-memory.dmp

Filesize
40KB

Download
memory/1056-36-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1056-31-0x0000000005590000-0x00000000055AE000-memory.dmp

Filesize
120KB

Download
memory/1056-30-0x00000000052F0000-0x00000000052FA000-memory.dmp

Filesize
40KB

Download
memory/1056-27-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1056-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1056-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1056-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-3-0x00000000059E0000-0x0000000005A72000-memory.dmp

Filesize
584KB

Download
memory/1332-0-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/1332-21-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1332-4-0x0000000005960000-0x000000000596A000-memory.dmp

Filesize
40KB

Download
memory/1332-6-0x0000000005D30000-0x0000000005D6C000-memory.dmp

Filesize
240KB

Download
memory/1332-2-0x0000000005F90000-0x0000000006534000-memory.dmp

Filesize
5.6MB

Download
memory/1332-1-0x0000000000F00000-0x0000000000F6E000-memory.dmp

Filesize
440KB

Download
memory/1332-5-0x0000000074DD0000-0x0000000075580000-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