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

Executes dropped EXE 1 IoCs

pid	Process
1700	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1328	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.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-1-5-21-312935884-697965778-3955649944-1000\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 1700 set thread context of 2720	1700	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	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
2720	regasm.exe
2720	regasm.exe
2720	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2720	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2720	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 1700	1328	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	31
PID 1328 wrote to memory of 1700	1328	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	31
PID 1328 wrote to memory of 1700	1328	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	31
PID 1328 wrote to memory of 1700	1328	75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe	31
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32
PID 1700 wrote to memory of 2720	1700	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe
"C:\Users\Admin\AppData\Local\Temp\75a2da8f874dd90287624204492864519180c8a8f9ed428c0032b8aca3f9b288.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1328
- 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:1700
- - 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:2720

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

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

Filesize
417KB

MD5
4b85f9293a38146b59770e12bada664a

SHA1
3cf1f32c19904c96957cefc402d6bcfdc7d5d96c

SHA256
f81667830ae0b6d69cb60d45c610a39fc63978389077e9c1aad5c13a206a8645

SHA512
04b8d31199b1ab49d2aa8237ced630a2d7bafd2734c02c5a9212a78d99e6ec49a0f093badfaf09781bf88a31a1c64719df258232910c27ded2ddd02e6f7aa583

Download Submit
memory/1328-1-0x0000000000BC0000-0x0000000000C2E000-memory.dmp

Filesize
440KB

Download
memory/1328-2-0x0000000074100000-0x00000000747EE000-memory.dmp

Filesize
6.9MB

Download
memory/1328-3-0x0000000000670000-0x00000000006AC000-memory.dmp

Filesize
240KB

Download
memory/1328-11-0x0000000074100000-0x00000000747EE000-memory.dmp

Filesize
6.9MB

Download
memory/1328-0-0x000000007410E000-0x000000007410F000-memory.dmp

Filesize
4KB

Download
memory/1700-38-0x0000000073A1E000-0x0000000073A1F000-memory.dmp

Filesize
4KB

Download
memory/1700-13-0x0000000073A1E000-0x0000000073A1F000-memory.dmp

Filesize
4KB

Download
memory/1700-14-0x0000000001340000-0x00000000013AE000-memory.dmp

Filesize
440KB

Download
memory/1700-15-0x0000000073A10000-0x00000000740FE000-memory.dmp

Filesize
6.9MB

Download
memory/1700-40-0x0000000073A10000-0x00000000740FE000-memory.dmp

Filesize
6.9MB

Download
memory/1700-39-0x0000000073A10000-0x00000000740FE000-memory.dmp

Filesize
6.9MB

Download
memory/2720-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-35-0x0000000000540000-0x000000000054A000-memory.dmp

Filesize
40KB

Download
memory/2720-36-0x0000000000760000-0x000000000077E000-memory.dmp

Filesize
120KB

Download
memory/2720-37-0x0000000000550000-0x000000000055A000-memory.dmp

Filesize
40KB

Download
memory/2720-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2720-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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