nanocore | 1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3e

General

Target

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe
Size

414KB
MD5

65f0fff6a9c3e188567a29eaa68df610
SHA1

32324f6cdc5b274103bf64d5de6bac913c859063
SHA256

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3e
SHA512

4e61e5532dbc12c006490d4db9fc1ca11028c04fca024e5425d1e588c7ce7c133649b4cf18f2f5190d5b2f31dfef24d35e41f304f04f56024c64d928181f70e4
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUK:ITNYrnE3bm/CiejewY5v5

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

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
2428	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe

pid	Process
2648	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.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 2428 set thread context of 2436	2428	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:

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.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
2436	regasm.exe
2436	regasm.exe
2436	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2436	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2436	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2648 wrote to memory of 2428	2648	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe	30
PID 2648 wrote to memory of 2428	2648	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe	30
PID 2648 wrote to memory of 2428	2648	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe	30
PID 2648 wrote to memory of 2428	2648	1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe	30
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31
PID 2428 wrote to memory of 2436	2428	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe
"C:\Users\Admin\AppData\Local\Temp\1fc21974c56c5146756cebae45ebf547058ded5d62368dd87ad310444d915b3eN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- 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:2428
- - 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:2436

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
a3d7f5d2b43d5ac5e4c71003e61f3b59

SHA1
0f508980a9b3fc8cbdfe00ac95a776f2328e97d9

SHA256
cf7900e00765cb604a663bc121db7ad7192c49763b2056debabfb0885ec7f400

SHA512
d1f490046f913413931f89a0f420f12f2a2dca6d7725f1092ab507130cd62d7661878a110fa4af82d6156d7ea102ba36fb01aa5ea5c1b6a94e65b128a9bfb132

Download Submit
memory/2428-13-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-39-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-38-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-12-0x0000000001020000-0x000000000108E000-memory.dmp

Filesize
440KB

Download
memory/2428-14-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2436-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-37-0x0000000000790000-0x000000000079A000-memory.dmp

Filesize
40KB

Download
memory/2436-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-36-0x00000000007B0000-0x00000000007CE000-memory.dmp

Filesize
120KB

Download
memory/2436-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2436-35-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download
memory/2648-3-0x0000000000690000-0x00000000006CC000-memory.dmp

Filesize
240KB

Download
memory/2648-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/2648-15-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-2-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2648-1-0x0000000001200000-0x000000000126E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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