nanocore | 9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5e

General

Target

9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe
Size

415KB
MD5

f1163c06d7975fce56fd828da1727250
SHA1

8646ba31f5b4f6106713dc5f8352941cec060a1a
SHA256

9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5e
SHA512

122c6203a348c6946327205204e234d95148b941391c0ade100aa5f090b0453df198a9482da8a43f5050951131592d29f734bc240760f71d880d7bdaec681a67
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7C: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
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	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe

Executes dropped EXE 1 IoCs

pid	Process
1692	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"	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.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 1692 set thread context of 4816	1692	ximo2ubzn1i.exe	94

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	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.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
4816	regasm.exe
4816	regasm.exe
4816	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4816	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4816	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 1692	4564	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	93
PID 4564 wrote to memory of 1692	4564	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	93
PID 4564 wrote to memory of 1692	4564	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	93
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94
PID 1692 wrote to memory of 4816	1692	ximo2ubzn1i.exe	94

C:\Users\Admin\AppData\Local\Temp\9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe
"C:\Users\Admin\AppData\Local\Temp\9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- 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:1692
- - 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:4816

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
415KB

MD5
72a7a30989559172b00410f01f0fc07c

SHA1
66a7f3b2a450c41bb6ff7e3e63cce734d5360817

SHA256
a225ad99baeed4aa0bc34db8bac101c42e8b0703ac38f09cd84454c81f28d120

SHA512
e8671c82ddc7f943381f19408c168c5716c9d265e1bf8a499d75ae3058b1285218ccefeef7f1afd3e0639d308ff8aa042479c21f9a96ef69fc8233306a42bf12

Download Submit
memory/1692-35-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-33-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-22-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1692-21-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-5-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-6-0x0000000005DE0000-0x0000000005E1C000-memory.dmp

Filesize
240KB

Download
memory/4564-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/4564-20-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4564-4-0x00000000058F0000-0x00000000058FA000-memory.dmp

Filesize
40KB

Download
memory/4564-3-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/4564-1-0x0000000000FC0000-0x000000000102E000-memory.dmp

Filesize
440KB

Download
memory/4564-2-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/4816-27-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4816-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4816-28-0x0000000005350000-0x00000000053EC000-memory.dmp

Filesize
624KB

Download
memory/4816-30-0x0000000005510000-0x000000000551A000-memory.dmp

Filesize
40KB

Download
memory/4816-31-0x0000000005520000-0x000000000553E000-memory.dmp

Filesize
120KB

Download
memory/4816-32-0x0000000005730000-0x000000000573A000-memory.dmp

Filesize
40KB

Download
memory/4816-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4816-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4816-36-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads