nanocore | 887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2

General

Target

887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe
Size

416KB
MD5

34d92499ff52400e6ba32caeb640a360
SHA1

35121f736593e6d3104db26f7b6447753f8e29d3
SHA256

887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2
SHA512

3826718c61586e8a7821881b5c9f25bbf99c03e3f2177cc1fd97f689c5286cff1b69c796691b15b52383af46b9dd0bd7484a77708e4f312bd4978a91d06a9e1b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUS:ITNYrnE3bm/CiejewY5vF

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
2724	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.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 2724 set thread context of 2756	2724	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	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.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
2756	regasm.exe
2756	regasm.exe
2756	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2756	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2724	2328	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe	31
PID 2328 wrote to memory of 2724	2328	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe	31
PID 2328 wrote to memory of 2724	2328	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe	31
PID 2328 wrote to memory of 2724	2328	887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe	31
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32
PID 2724 wrote to memory of 2756	2724	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe
"C:\Users\Admin\AppData\Local\Temp\887661660a313d65f34fa79f249bfaedd01442f59575d29f275ebf9bb9e88db2N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- 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:2724
- - 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:2756

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
ec4f2f080f53fadd86918928a62dba6f

SHA1
189c4bcab1b8cac0f95c3c9fb87b37851a511ff3

SHA256
b27ae37e3ddea7b3adff48e3a03cfd462b0f0c108ec09146a3d77e82fd98e0ce

SHA512
bac5e6d4b5c83e4422d5b19ce6977c7831b871c70a4eb5fae34d6774331db21b5708da2e1a7a4f59aac75c91379f9c47ff553c5e30225350c592148127b45cca

Download Submit
memory/2328-1-0x0000000000910000-0x000000000097E000-memory.dmp

Filesize
440KB

Download
memory/2328-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2328-3-0x0000000000C70000-0x0000000000CAC000-memory.dmp

Filesize
240KB

Download
memory/2328-15-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2328-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2724-38-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-12-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-13-0x00000000010D0000-0x000000000113E000-memory.dmp

Filesize
440KB

Download
memory/2724-14-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2724-39-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-35-0x0000000000AE0000-0x0000000000AEA000-memory.dmp

Filesize
40KB

Download
memory/2756-36-0x0000000000B40000-0x0000000000B5E000-memory.dmp

Filesize
120KB

Download
memory/2756-37-0x0000000000AF0000-0x0000000000AFA000-memory.dmp

Filesize
40KB

Download
memory/2756-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads