nanocore | e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1

General

Target

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe
Size

416KB
MD5

f1697797bf4abf64ec6706dd10119250
SHA1

4e2830e9ee685e7835a0978a177be37314b7d9d1
SHA256

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1
SHA512

43531078e65b02e39bf7d923113acf8ee003ae397a4f3dd076a540bb81a3b93ae50690d3b7fad330af0faf3388cff5a422be4515ff902c211a8c93cc6b9c8e96
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7K:ITNYrnE3bm/CiejewY5vZ

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

Processes:

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid process

3320 ximo2ubzn1i.exe

pid	process
3320	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe

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"	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.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 target process

PID 3320 set thread context of 3908 3320 ximo2ubzn1i.exe regasm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	regasm.exe

description	pid	process	target process
PID 3320 set thread context of 3908	3320	ximo2ubzn1i.exe	regasm.exe

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:

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exeximo2ubzn1i.exeregasm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.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

3908 regasm.exe
3908 regasm.exe
3908 regasm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid process

3908 regasm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description pid process

Token: SeDebugPrivilege 3908 regasm.exe

pid	process
3908	regasm.exe
3908	regasm.exe
3908	regasm.exe

pid	process
3908	regasm.exe

description	pid	process
Token: SeDebugPrivilege	3908	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exeximo2ubzn1i.exe

description	pid	process	target process
PID 2864 wrote to memory of 3320	2864	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe	ximo2ubzn1i.exe
PID 2864 wrote to memory of 3320	2864	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe	ximo2ubzn1i.exe
PID 2864 wrote to memory of 3320	2864	e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe	ximo2ubzn1i.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe
PID 3320 wrote to memory of 3908	3320	ximo2ubzn1i.exe	regasm.exe

C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe
"C:\Users\Admin\AppData\Local\Temp\e9f8fee885f2a262dcd4a874dd2cb724ea584704d182f1759ae2c455c48653e1N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2864
- 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:3320
- - 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:3908

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
3619ddcfa7a88d03acd7c73b3eb72d85

SHA1
a80795618952d9d4f59376d7128be4927aa16191

SHA256
551d1cee0e254a9bb4ac0cdb9136da9809359573dfd5c55d3ec624e0bc2ff448

SHA512
811cd45a6d93a0fd0a2e384acd6ad6b8d3c140572cbc96a73701acb112c16294b9aaf1b54e408228bcc8ca775743f261a18761ae7f39598059729dcc53957340

Download Submit
memory/2864-0-0x000000007511E000-0x000000007511F000-memory.dmp

Filesize
4KB

Download
memory/2864-1-0x00000000006C0000-0x000000000072E000-memory.dmp

Filesize
440KB

Download
memory/2864-2-0x0000000005730000-0x0000000005CD4000-memory.dmp

Filesize
5.6MB

Download
memory/2864-3-0x0000000005180000-0x0000000005212000-memory.dmp

Filesize
584KB

Download
memory/2864-4-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/2864-5-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/2864-6-0x00000000054F0000-0x000000000552C000-memory.dmp

Filesize
240KB

Download
memory/2864-20-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3320-22-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3320-21-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3320-33-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3320-35-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3908-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3908-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3908-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3908-27-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3908-28-0x0000000005320000-0x00000000053BC000-memory.dmp

Filesize
624KB

Download
memory/3908-30-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/3908-31-0x00000000056D0000-0x00000000056EE000-memory.dmp

Filesize
120KB

Download
memory/3908-32-0x00000000061A0000-0x00000000061AA000-memory.dmp

Filesize
40KB

Download
memory/3908-36-0x0000000075110000-0x00000000758C0000-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