nanocore | 7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d

General

Target

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe
Size

415KB
MD5

7b86ae25d78f8e32c3f87f53b8f3adbe
SHA1

bb8d286fe2bbcc409630c59816c8d657cfa3a3c5
SHA256

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d
SHA512

caa66063c51bf008b7134aa6a6368b9498c63b36e9252e16c2c180d8f97a2944d90b6169da8fc299e48546286ca2bef399e0af9aef9b6d179eb19c9d09860015
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7g:ITNYrnE3bm/CiejewY5v7

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

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

Processes:

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
400	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.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 400 set thread context of 2736	400	ximo2ubzn1i.exe	87

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:

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.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
2736	regasm.exe
2736	regasm.exe
2736	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2736	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2736	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 4928 wrote to memory of 400	4928	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe	86
PID 4928 wrote to memory of 400	4928	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe	86
PID 4928 wrote to memory of 400	4928	7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe	86
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87
PID 400 wrote to memory of 2736	400	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe
"C:\Users\Admin\AppData\Local\Temp\7034f13b6b1414b1fa880b890a6a3fa612433772c6bc23c87deccc3b38b56d1d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928
- 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:400
- - 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

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
415KB

MD5
ec74f0843d0658714552eea022a1fe30

SHA1
aaf08beb56d1547911b0105d5b1fcabb805be0b1

SHA256
5a5dd8f6939ff223c0ab1743d5b8300933f1e61f3834c6087986bf91da18a736

SHA512
c1a9ae494e693b12efcc91eccf7b821e18ea1089dcc9de305453ca7cf08c0051d3ddb9c11808b497cc01f70de40694b80624fb31a209e582607cf53b6c89c6e8

Download Submit
memory/400-35-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/400-33-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/400-22-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/400-21-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-28-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

Filesize
624KB

Download
memory/2736-32-0x0000000005DC0000-0x0000000005DCA000-memory.dmp

Filesize
40KB

Download
memory/2736-36-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-31-0x0000000005390000-0x00000000053AE000-memory.dmp

Filesize
120KB

Download
memory/2736-30-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/2736-27-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2736-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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

Filesize
224KB

Download
memory/4928-3-0x0000000005710000-0x00000000057A2000-memory.dmp

Filesize
584KB

Download
memory/4928-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/4928-20-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4928-4-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4928-6-0x0000000005A60000-0x0000000005A9C000-memory.dmp

Filesize
240KB

Download
memory/4928-2-0x0000000005CC0000-0x0000000006264000-memory.dmp

Filesize
5.6MB

Download
memory/4928-1-0x0000000000C40000-0x0000000000CAE000-memory.dmp

Filesize
440KB

Download
memory/4928-5-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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