nanocore | ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1

General

Target

ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe
Size

415KB
MD5

9853f07e6a34d31c7022a10c4a2df680
SHA1

89dfb664eb4f85dd739baa2125726f4f94d4705b
SHA256

ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1
SHA512

f7bc7a9e900fd0f37d85324e091dc75427ec68044313762347807b6ff11b5bc46a05aef302fa5750a1421afc72023388ecad1f88ace1f2ee43551487674315be
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU78:ITNYrnE3bm/CiejewY5vn

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
1984	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.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 1984 set thread context of 2848	1984	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	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.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
2848	regasm.exe
2848	regasm.exe
2848	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2848	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 1984	2368	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe	30
PID 2368 wrote to memory of 1984	2368	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe	30
PID 2368 wrote to memory of 1984	2368	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe	30
PID 2368 wrote to memory of 1984	2368	ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe	30
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31
PID 1984 wrote to memory of 2848	1984	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe
"C:\Users\Admin\AppData\Local\Temp\ac1f9383bd99697e49af7fff58452ebc6afd72af58c85d8452a5790e37cee8c1N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- 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:1984
- - 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:2848

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

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

Filesize
415KB

MD5
8b80c81f02a27155b5d5a779b01e5900

SHA1
9a919178c7d2a35a30f267cdd1b453235031fdb9

SHA256
d03668a55636a89c65811c1b13e226f764321330f751287237bd0dd3777d4ae0

SHA512
b9e2a174492f12444ceec1dc936e0e6bbf6c70b81073d1c488acf72be3773891969bd0eb267a7ba5acf1f9faccc01d1077e789b8aa949b3030c4dbd4170cad4b

Download Submit
memory/1984-33-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-14-0x0000000000B70000-0x0000000000BDE000-memory.dmp

Filesize
440KB

Download
memory/1984-13-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-15-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-34-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-1-0x0000000001230000-0x000000000129E000-memory.dmp

Filesize
440KB

Download
memory/2368-2-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-3-0x00000000008E0000-0x000000000091C000-memory.dmp

Filesize
240KB

Download
memory/2368-12-0x0000000073DB0000-0x000000007449E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-0-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

Filesize
4KB

Download
memory/2848-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-30-0x0000000000450000-0x000000000045A000-memory.dmp

Filesize
40KB

Download
memory/2848-31-0x0000000000460000-0x000000000047E000-memory.dmp

Filesize
120KB

Download
memory/2848-32-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/2848-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads