nanocore | af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbd

General

Target

af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe
Size

415KB
MD5

f93a57f8d463af5e4fc8bb2366a985d0
SHA1

cf2e8cc76146f95a9c7b93973a4d40545fe55380
SHA256

af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbd
SHA512

de2a2f64f3fbd95bc7b2f56a2449f78d01a8fff5e2b2aaab82fcf6ce6a557abc5409cc8fc408a825d6c83b03edce9f0bbc80e273469bc046cbac449765e948ea
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUo:ITNYrnE3bm/CiejewY5vH

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe

Executes dropped EXE 1 IoCs

pid	Process
4780	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.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 4780 set thread context of 548	4780	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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
548	regasm.exe
548	regasm.exe
548	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
548	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	548	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 4780	2520	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe	84
PID 2520 wrote to memory of 4780	2520	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe	84
PID 2520 wrote to memory of 4780	2520	af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe	84
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85
PID 4780 wrote to memory of 548	4780	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe
"C:\Users\Admin\AppData\Local\Temp\af558ccd9263d109c1e8b2cd6dffcc771d7ed61480c102d7bc8a4574f1240fbdN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- 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:4780
- - 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:548

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
8f33d39da38b53905a783997ced4e3ba

SHA1
edb7bea2f8a12c0a747d8ddbb2344b1cdf680d79

SHA256
4b857d9e3270d9f66d967fc121a063aab75aa87470efabe71433c4c8a5e3f74b

SHA512
fc7d6c1f5b931641085ac773895550aa927cc15495de48bcf8e830a320a5b70b5f8e854f7ac96469ebb48c3f099ec08ba029d5f56f65f74d38885128f8e653a6

Download Submit
memory/548-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/548-36-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/548-32-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/548-31-0x0000000005280000-0x000000000529E000-memory.dmp

Filesize
120KB

Download
memory/548-30-0x0000000005170000-0x000000000517A000-memory.dmp

Filesize
40KB

Download
memory/548-28-0x0000000005030000-0x00000000050CC000-memory.dmp

Filesize
624KB

Download
memory/548-27-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/548-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/548-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2520-5-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/2520-20-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/2520-6-0x00000000053F0000-0x000000000542C000-memory.dmp

Filesize
240KB

Download
memory/2520-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/2520-4-0x0000000005160000-0x000000000516A000-memory.dmp

Filesize
40KB

Download
memory/2520-3-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/2520-2-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/2520-1-0x0000000000830000-0x000000000089E000-memory.dmp

Filesize
440KB

Download
memory/4780-22-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/4780-21-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/4780-33-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/4780-35-0x00000000748D0000-0x0000000075080000-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