nanocore | 75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288

General

Target

75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe
Size

417KB
MD5

8d15d03e9e529978c300e443915755d1
SHA1

8e217f266fb1829e65a9364505cc61e10186d903
SHA256

75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288
SHA512

0b1d6df9405be3df0ae6a6dfc87fa5591398b9febb892a5978d9937600b6aa47215fbc06870355d6175e95ab58dc67f4d17d259d565f5a875631c9d0b3282777
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUx:ITNYrnE3bm/CiejewY5vs

Score

10^/10

nanocore defense_evasion discovery 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-1-5-21-2593460650-190333679-3676257533-1000\Control Panel\International\Geo\Nation	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe

Executes dropped EXE 1 IoCs

pid	Process
3820	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-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 3820 set thread context of 1668	3820	ximo2ubzn1i.exe	88

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	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.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
1668	regasm.exe
1668	regasm.exe
1668	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1668	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 3820	2664	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	87
PID 2664 wrote to memory of 3820	2664	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	87
PID 2664 wrote to memory of 3820	2664	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	87
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88
PID 3820 wrote to memory of 1668	3820	ximo2ubzn1i.exe	88

C:\Users\Admin\AppData\Local\Temp\75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe
"C:\Users\Admin\AppData\Local\Temp\75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664
- 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:3820
- - 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:1668

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
417KB

MD5
a16f80b539d8d055ac404d4a99b37a8d

SHA1
80776e0fe527c280d9dc382fd88d1ab06043eb5b

SHA256
8d7fdb90300a159ddc7eaaa5a68713e404970e0ea21449348c09f8add3400017

SHA512
06330b6a35ae48eaae8c1c6898b88ac3e0a02593e4365c8d6e5611bf6eb2554b25624dba6bec56e868f497eba6309cbf2c8fcb4075cf404cf060cd22415d2e7e

Download Submit
memory/1668-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-36-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1668-32-0x0000000005C60000-0x0000000005C6A000-memory.dmp

Filesize
40KB

Download
memory/1668-31-0x0000000005C40000-0x0000000005C5E000-memory.dmp

Filesize
120KB

Download
memory/1668-30-0x0000000005130000-0x000000000513A000-memory.dmp

Filesize
40KB

Download
memory/1668-28-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/1668-27-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1668-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2664-5-0x0000000004C20000-0x0000000004C2A000-memory.dmp

Filesize
40KB

Download
memory/2664-20-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/2664-6-0x00000000051F0000-0x000000000522C000-memory.dmp

Filesize
240KB

Download
memory/2664-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2664-4-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/2664-3-0x0000000004C90000-0x0000000004D22000-memory.dmp

Filesize
584KB

Download
memory/2664-2-0x0000000005240000-0x00000000057E4000-memory.dmp

Filesize
5.6MB

Download
memory/2664-1-0x00000000001C0000-0x000000000022E000-memory.dmp

Filesize
440KB

Download
memory/3820-22-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3820-21-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3820-33-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3820-35-0x0000000074540000-0x0000000074CF0000-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