nanocore | 1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87

General

Target

1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe
Size

416KB
MD5

cb0d2b0ef0a02a1c2e18430edb08c5b0
SHA1

9b809bd44ba216096f8b1ea43a391044454129f1
SHA256

1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87
SHA512

88ca7b2f63ff412a97614a2812387bb162350b2edc9e9869bfc27172629b88e5cd5dd1c3ceb05f0f0827c37422a189564ce8cacf79519c202b7ecf56a6f6cbb2
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7o:ITNYrnE3bm/CiejewY5vb

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	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe

Executes dropped EXE 1 IoCs

pid	Process
2296	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"	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.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 2296 set thread context of 4768	2296	ximo2ubzn1i.exe	88

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	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.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
4768	regasm.exe
4768	regasm.exe
4768	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4768	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4768	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2296	1856	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe	87
PID 1856 wrote to memory of 2296	1856	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe	87
PID 1856 wrote to memory of 2296	1856	1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe	87
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88
PID 2296 wrote to memory of 4768	2296	ximo2ubzn1i.exe	88

C:\Users\Admin\AppData\Local\Temp\1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe
"C:\Users\Admin\AppData\Local\Temp\1960af0490edb6211dd26430ef1c375dc708a25cff2bf9792b7fd2760184eb87N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- 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:2296
- - 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:4768

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
2a96b4cc12d9e76dd7ca1b9036bc021f

SHA1
5365b64c080df3263f53e52eba5741e2cc5b399c

SHA256
5334b20a712e97466ef1ad6b9c403199a700f6ea7049ec506c4b813233fd0264

SHA512
0ae2a2c1135fead41c80f0fa67d9dca4892cd03e9c13c354bc6b8b86c789b7a21138e82d5d1714a916d00772bff203eb1f87f338e93ef967df734474a08de127

Download Submit
memory/1856-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/1856-1-0x0000000000A20000-0x0000000000A8E000-memory.dmp

Filesize
440KB

Download
memory/1856-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/1856-3-0x00000000054B0000-0x0000000005542000-memory.dmp

Filesize
584KB

Download
memory/1856-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1856-4-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/1856-6-0x0000000005950000-0x000000000598C000-memory.dmp

Filesize
240KB

Download
memory/1856-20-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2296-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2296-21-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2296-33-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2296-35-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4768-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4768-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4768-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4768-27-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4768-28-0x0000000005860000-0x00000000058FC000-memory.dmp

Filesize
624KB

Download
memory/4768-30-0x0000000005800000-0x000000000580A000-memory.dmp

Filesize
40KB

Download
memory/4768-31-0x00000000059A0000-0x00000000059BE000-memory.dmp

Filesize
120KB

Download
memory/4768-32-0x0000000005850000-0x000000000585A000-memory.dmp

Filesize
40KB

Download
memory/4768-36-0x00000000753A0000-0x0000000075B50000-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