nanocore | e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f

General

Target

e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe
Size

416KB
MD5

b18f4f4d088bd82c8a8f7f6a1ef0e3c5
SHA1

50721476662adc543ca438b6dfec0e2e1e608b6f
SHA256

e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f
SHA512

1a1d7ed6207007ba59fa18d8f17dcee06512564aae1ab27e88101932fb9e202534bd87df5866ac7ed23a698adce108b010e9680a76e2118f4ca0132d298957e6
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7C:ITNYrnE3bm/CiejewY5vZ

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe

Executes dropped EXE 1 IoCs

pid	Process
948	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.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 948 set thread context of 4292	948	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.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
4292	regasm.exe
4292	regasm.exe
4292	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4292	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 948	4968	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	84
PID 4968 wrote to memory of 948	4968	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	84
PID 4968 wrote to memory of 948	4968	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	84
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87
PID 948 wrote to memory of 4292	948	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe
"C:\Users\Admin\AppData\Local\Temp\e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968
- 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:948
- - 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:4292

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
8f4afae9e1c8b805bbd22fcbe527f55d

SHA1
1dff2700823d3776ec5ab106543773df0b63d759

SHA256
aff386db949954b8864604521ccee542b1c3be1b9139f259a26bc22cc5267dd9

SHA512
cc4dca98bf2cf3a930d14b3dc1455af53f63b79efd3ab90f7adc3643f16c9616afadebc309bbdc8747fb0487226fcb96f2bd14344978ee08fe82a0dae9e1d7e7

Download Submit
memory/948-35-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/948-33-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/948-22-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/948-21-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-28-0x00000000050A0000-0x000000000513C000-memory.dmp

Filesize
624KB

Download
memory/4292-32-0x0000000005F90000-0x0000000005F9A000-memory.dmp

Filesize
40KB

Download
memory/4292-36-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-31-0x00000000054F0000-0x000000000550E000-memory.dmp

Filesize
120KB

Download
memory/4292-30-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/4292-27-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4292-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4292-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4968-3-0x0000000004F20000-0x0000000004FB2000-memory.dmp

Filesize
584KB

Download
memory/4968-0-0x0000000074EFE000-0x0000000074EFF000-memory.dmp

Filesize
4KB

Download
memory/4968-4-0x0000000004EE0000-0x0000000004EEA000-memory.dmp

Filesize
40KB

Download
memory/4968-20-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4968-6-0x00000000053A0000-0x00000000053DC000-memory.dmp

Filesize
240KB

Download
memory/4968-2-0x0000000005430000-0x00000000059D4000-memory.dmp

Filesize
5.6MB

Download
memory/4968-1-0x0000000000460000-0x00000000004CE000-memory.dmp

Filesize
440KB

Download
memory/4968-5-0x0000000074EF0000-0x00000000756A0000-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