nanocore | 9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265

General

Target

9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe
Size

415KB
MD5

577dc3b36720095ac7c5568a1de7a4b8
SHA1

ec59717ab497ad2900a8636e119f73c6b00fca14
SHA256

9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265
SHA512

e633b938fa5d005172056719f3232701f3a502068eb7466d34ccbb4ae8e01f56e12ee7ea27158b14c70f7da7331e7142414c674029efc4577be6ef69731bd529
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7Q:ITNYrnE3bm/CiejewY5v3

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

Executes dropped EXE 1 IoCs

pid	Process
2108	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1832	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.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 2108 set thread context of 2736	2108	ximo2ubzn1i.exe	31

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	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.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
2736	regasm.exe
2736	regasm.exe
2736	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2736	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2108	1832	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe	30
PID 1832 wrote to memory of 2108	1832	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe	30
PID 1832 wrote to memory of 2108	1832	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe	30
PID 1832 wrote to memory of 2108	1832	9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe	30
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31
PID 2108 wrote to memory of 2736	2108	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe
"C:\Users\Admin\AppData\Local\Temp\9fd9901c45957aff01159b1210f3f378c77b630fb6cc39fedf7a3faa31af6265.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1832
- 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:2108
- - 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:2736

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

System Information Discovery

2

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

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

Filesize
415KB

MD5
9b7dbbf3533c9d8406eb92bd880f8097

SHA1
1e9d8027da562c326c5eb35997654f3e6c69ea99

SHA256
bf1fbdb320afd842969931f5802e444609d547604f963eb9f1d3d8d9c20b85db

SHA512
242bfc0ed2fa649f883b99a95d1c346d51c5032b8c762f01087eb406b5accd64c46440420057d8ce95ad024e5eb88eaaecc794adb57fb7630dd6df24367c2962

Download Submit
memory/1832-1-0x0000000001090000-0x00000000010FE000-memory.dmp

Filesize
440KB

Download
memory/1832-2-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1832-3-0x0000000000D60000-0x0000000000D9C000-memory.dmp

Filesize
240KB

Download
memory/1832-12-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/1832-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2108-35-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-13-0x0000000000D30000-0x0000000000D9E000-memory.dmp

Filesize
440KB

Download
memory/2108-14-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-15-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2108-36-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2736-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-32-0x0000000000710000-0x000000000071A000-memory.dmp

Filesize
40KB

Download
memory/2736-33-0x0000000000760000-0x000000000077E000-memory.dmp

Filesize
120KB

Download
memory/2736-34-0x0000000000780000-0x000000000078A000-memory.dmp

Filesize
40KB

Download
memory/2736-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads