nanocore | 82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01

General

Target

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe
Size

414KB
MD5

3481e7d630833967991d784d96caba66
SHA1

f96efce0562fc81c0b2fd6bb30ad15138f3dd665
SHA256

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01
SHA512

3abae7f498b6c2b553db85df9fe7d2532e77d7b99444c318de844eebc0625f36a2726ee47487c9feb8206031b4d565aa612130ef8f77995f7cc5bea2bbe48781
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUH: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

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
2976	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe

pid	Process
2876	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.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 2976 set thread context of 2900	2976	ximo2ubzn1i.exe	31

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:

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.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
2900	regasm.exe
2900	regasm.exe
2900	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2900	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2900	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2876 wrote to memory of 2976	2876	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe	30
PID 2876 wrote to memory of 2976	2876	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe	30
PID 2876 wrote to memory of 2976	2876	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe	30
PID 2876 wrote to memory of 2976	2876	82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe	30
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31
PID 2976 wrote to memory of 2900	2976	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe
"C:\Users\Admin\AppData\Local\Temp\82c4fbf16ea2312a8a443d451962943fe892ffa221a591123a25b9f4b831fb01.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- 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:2976
- - 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:2900

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
414KB

MD5
d89f479d028f7603884e03195e4cfc27

SHA1
e088309204b5bebebd2893e2b706fe334785e11a

SHA256
cc70b76c89873bd428943eae8427dd98496aa6b39420dbc9e97accc381d2d966

SHA512
7d59c07a4819f81a31d8214c645ef481ef426a1d10046a7284ebbdf39f26b8ee414a641060b9172538127941179c5d4e83ff9d0f6b4dc88d7b0b37ea78ba125d

Download Submit
memory/2876-14-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-1-0x00000000002D0000-0x000000000033E000-memory.dmp

Filesize
440KB

Download
memory/2876-2-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-3-0x0000000004080000-0x00000000040BC000-memory.dmp

Filesize
240KB

Download
memory/2876-0-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/2900-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-32-0x0000000000440000-0x000000000044A000-memory.dmp

Filesize
40KB

Download
memory/2900-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-31-0x00000000003E0000-0x00000000003FE000-memory.dmp

Filesize
120KB

Download
memory/2900-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2900-30-0x00000000003D0000-0x00000000003DA000-memory.dmp

Filesize
40KB

Download
memory/2900-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2976-13-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2976-15-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2976-12-0x0000000000AC0000-0x0000000000B2E000-memory.dmp

Filesize
440KB

Download
memory/2976-33-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download
memory/2976-34-0x0000000074850000-0x0000000074F3E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads