nanocore | 17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b

General

Target

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe
Size

413KB
MD5

f6e706433a6888d324b6f82269f8b95e
SHA1

0f39353919b1e8462d7b111b3724529def488923
SHA256

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b
SHA512

cebabd9848668d85516e9c7f32bad0deb145a314572f9a18b1b46d7f6c4c54354de942cfb550ff2f84141d160bcdcf9805af8f5b91cd78546d3420ce226221da
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUr:ITNYrnE3bm/CiejewY5vQ

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

Processes:

ximo2ubzn1i.exe

pid	Process
2916	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe

pid	Process
2160	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.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	procid_target
PID 2916 set thread context of 2872	2916	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

Processes:

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.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
2872	regasm.exe
2872	regasm.exe
2872	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2872	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2872	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2160 wrote to memory of 2916	2160	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe	30
PID 2160 wrote to memory of 2916	2160	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe	30
PID 2160 wrote to memory of 2916	2160	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe	30
PID 2160 wrote to memory of 2916	2160	17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe	30
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31
PID 2916 wrote to memory of 2872	2916	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe
"C:\Users\Admin\AppData\Local\Temp\17ab77e714b639382bd95d6cad5252c4ec25224c66ca53a7ba3453a4e6a3c09b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2160
- 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:2916
- - 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:2872

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
414KB

MD5
10cfe89329e3eb435f279bccc5904e93

SHA1
2650d2d92d02f0ef5d0b9e54c2d0ababb1a478c2

SHA256
cf95e6212130dbc7c29bf9ad69e31b7593d66873178da4d407b2cdd326f36110

SHA512
b177962a4079386a19a73b06728825cdc465bbd5503890768cf8e448010b89d206cc6d19a35cec7e3a7e62930e9fe0553af6fe54f3799b7e0a2d0a9d24b0cb83

Download Submit
memory/2160-15-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2160-1-0x0000000000840000-0x00000000008AE000-memory.dmp

Filesize
440KB

Download
memory/2160-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2160-3-0x0000000004330000-0x000000000436C000-memory.dmp

Filesize
240KB

Download
memory/2160-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2872-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-37-0x0000000000A70000-0x0000000000A7A000-memory.dmp

Filesize
40KB

Download
memory/2872-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2872-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-36-0x0000000000A50000-0x0000000000A6E000-memory.dmp

Filesize
120KB

Download
memory/2872-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-35-0x0000000000A40000-0x0000000000A4A000-memory.dmp

Filesize
40KB

Download
memory/2872-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2916-12-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2916-14-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2916-13-0x0000000000B40000-0x0000000000BAE000-memory.dmp

Filesize
440KB

Download
memory/2916-38-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2916-39-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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