nanocore | 79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731

General

Target

79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe
Size

415KB
MD5

28eecc7a5d7b5b6f6e3117d4f2aa329c
SHA1

72b895b93d210a95dfb9c66e0d3d5486f76944e5
SHA256

79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731
SHA512

d3b9589e40c367a944d12dcabdb8db114386c4ed064c7e0dcee9198a4d40a0c8fffa9c2db21a2a39b2e3321c1378dd8e455e434685243a81a0e0011b66ced9bf
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUj:ITNYrnE3bm/CiejewY5vo

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
844	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.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 844 set thread context of 3068	844	ximo2ubzn1i.exe	32

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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3068	regasm.exe
3068	regasm.exe
3068	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 844	2124	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe	31
PID 2124 wrote to memory of 844	2124	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe	31
PID 2124 wrote to memory of 844	2124	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe	31
PID 2124 wrote to memory of 844	2124	79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe	31
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32
PID 844 wrote to memory of 3068	844	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe
"C:\Users\Admin\AppData\Local\Temp\79d7ce351302ee02c712c968b367ae162ee98cd5c977cd0717f547f44b6e2731.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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:844
- - 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:3068

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
415KB

MD5
13b9a5c14e6a7357e7af31e68c45eeab

SHA1
3e0fd861b80bdf3aa315702a5574f52079b6a20b

SHA256
7331ea9e73ab70642b41d16bf3c34d970195a431074492621257c39fa0dc95b6

SHA512
233a623abbe6526f1b40f8ecb326ab9243ecd72f9147a983a6ef5aee02d16740982bb38b9f82a09dba78f3764a2d9261cd4f89b67c379b218643e28b7a548cde

Download Submit
memory/844-33-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/844-14-0x0000000001210000-0x000000000127E000-memory.dmp

Filesize
440KB

Download
memory/844-13-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/844-15-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/844-34-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2124-1-0x0000000000B20000-0x0000000000B8E000-memory.dmp

Filesize
440KB

Download
memory/2124-2-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2124-3-0x00000000020B0000-0x00000000020EC000-memory.dmp

Filesize
240KB

Download
memory/2124-12-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2124-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/3068-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3068-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-32-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/3068-31-0x0000000000480000-0x000000000049E000-memory.dmp

Filesize
120KB

Download
memory/3068-30-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/3068-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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