nanocore | 434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3d

General

Target

434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe
Size

416KB
MD5

46a0df8b13b23c016b7ec242430752f0
SHA1

c3b5d5d7009f829b90a4c4e9d5a1cba788b24974
SHA256

434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3d
SHA512

e1e96ad1775fc78f5e10f5530f86b04c0a974e5e2b7355dc8520acd49f0faa7629301d0b52568ecd267495bc9241b4ddf6f3e04f2e1cbd3c826e9764a85fca3d
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU77:ITNYrnE3bm/CiejewY5v0

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe

Executes dropped EXE 1 IoCs

pid	Process
564	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.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 564 set thread context of 2140	564	ximo2ubzn1i.exe	85

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	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.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
2140	regasm.exe
2140	regasm.exe
2140	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2140	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2140	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 564	3588	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	84
PID 3588 wrote to memory of 564	3588	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	84
PID 3588 wrote to memory of 564	3588	434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe	84
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85
PID 564 wrote to memory of 2140	564	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe
"C:\Users\Admin\AppData\Local\Temp\434ff9357400068f576e0f0ab102e45cd8d81d2ebe27ee93c2a7e66dfa729e3dN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3588
- 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:564
- - 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:2140

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

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Downloads

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

Filesize
416KB

MD5
c70c34f890fa9efd343bbdd2040870d0

SHA1
05e139dac9322d1c0185ed5c56df25f587eb9a31

SHA256
701209b2af67b698e12a1c56d5a5ea9880c8b178900854d4159579d3007388ca

SHA512
d5effc2960c27fa46f6a48b02d84af9a641d6aae72e389e22c117e37af0426465e89379a8308444c56c4e50cab7cc0bfd8a726d78e7ff3cabb850365647b8273

Download Submit
memory/564-35-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/564-33-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/564-22-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/564-20-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2140-28-0x00000000055C0000-0x000000000565C000-memory.dmp

Filesize
624KB

Download
memory/2140-32-0x0000000006470000-0x000000000647A000-memory.dmp

Filesize
40KB

Download
memory/2140-36-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2140-31-0x0000000005AA0000-0x0000000005ABE000-memory.dmp

Filesize
120KB

Download
memory/2140-30-0x0000000005500000-0x000000000550A000-memory.dmp

Filesize
40KB

Download
memory/2140-27-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2140-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2140-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2140-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3588-3-0x0000000005120000-0x00000000051B2000-memory.dmp

Filesize
584KB

Download
memory/3588-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/3588-21-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/3588-4-0x00000000052E0000-0x00000000052EA000-memory.dmp

Filesize
40KB

Download
memory/3588-6-0x00000000053D0000-0x000000000540C000-memory.dmp

Filesize
240KB

Download
memory/3588-2-0x0000000005610000-0x0000000005BB4000-memory.dmp

Filesize
5.6MB

Download
memory/3588-1-0x00000000006D0000-0x000000000073E000-memory.dmp

Filesize
440KB

Download
memory/3588-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads