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

Executes dropped EXE 1 IoCs

pid	Process
2984	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2904	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.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-1-5-21-3692679935-4019334568-335155002-1000\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 2984 set thread context of 2284	2984	ximo2ubzn1i.exe	30

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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2284	regasm.exe
2284	regasm.exe
2284	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2284	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2984	2904	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	29
PID 2904 wrote to memory of 2984	2904	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	29
PID 2904 wrote to memory of 2984	2904	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	29
PID 2904 wrote to memory of 2984	2904	e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe	29
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30
PID 2984 wrote to memory of 2284	2984	ximo2ubzn1i.exe	30

C:\Users\Admin\AppData\Local\Temp\e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe
"C:\Users\Admin\AppData\Local\Temp\e7d58fc2ad4745a15cba6efb1cff2f42be5d552bfdbeb646db28f5dfb40dd28f.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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:2984
- - 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:2284

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

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

Filesize
416KB

MD5
d730f186221d2e100f1b6fb42e84ac00

SHA1
39892316f901847d1993eba71f1570669073c539

SHA256
8949537b0e67a502311c7fba4c3053227ac1cce18b3d0364f088be094e9b0045

SHA512
5289de0914bb2cc6772c345b877afd297b2fe98f94e71e6cdc0e034c39c75ba550971fd1c943c537882f50115c469dd16e7c19204ad0de67e429cef9839617e7

Download Submit
memory/2284-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2284-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-37-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2284-36-0x00000000003D0000-0x00000000003EE000-memory.dmp

Filesize
120KB

Download
memory/2284-35-0x00000000003C0000-0x00000000003CA000-memory.dmp

Filesize
40KB

Download
memory/2284-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2904-12-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2904-1-0x0000000000220000-0x000000000028E000-memory.dmp

Filesize
440KB

Download
memory/2904-2-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2904-0-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2904-3-0x0000000000650000-0x000000000068C000-memory.dmp

Filesize
240KB

Download
memory/2984-15-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2984-13-0x0000000000970000-0x00000000009DE000-memory.dmp

Filesize
440KB

Download
memory/2984-14-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2984-38-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2984-39-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads