nanocore | 9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5e

General

Target

9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe
Size

415KB
MD5

f1163c06d7975fce56fd828da1727250
SHA1

8646ba31f5b4f6106713dc5f8352941cec060a1a
SHA256

9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5e
SHA512

122c6203a348c6946327205204e234d95148b941391c0ade100aa5f090b0453df198a9482da8a43f5050951131592d29f734bc240760f71d880d7bdaec681a67
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7C:ITNYrnE3bm/CiejewY5vJ

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
2408	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1952	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.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 2408 set thread context of 1900	2408	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.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
1900	regasm.exe
1900	regasm.exe
1900	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1900	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2408	1952	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	30
PID 1952 wrote to memory of 2408	1952	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	30
PID 1952 wrote to memory of 2408	1952	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	30
PID 1952 wrote to memory of 2408	1952	9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe	30
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31
PID 2408 wrote to memory of 1900	2408	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe
"C:\Users\Admin\AppData\Local\Temp\9c5e29873d202bb0b0005c7676273ab54f256574597d80a2979ebe3c7a7a1c5eN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- 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:2408
- - 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:1900

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
ae22752a91fc8a4a4e8da7f2bb30a3fa

SHA1
6284cdf84ae2bb630ccc20ecc4d0d8c0bf02be88

SHA256
44d3a8f86e92309d826f09575ef452f2cc24759840e623fdd0ced130b30c68ad

SHA512
c1880ce8c55b7cd2897d22f454062bc62181816f0aa3cf834d4c0a3f724fff1a4ec106846157fa67871f28ebb04e9086f1a6ed219168856d0df14bbe771abdc5

Download Submit
memory/1900-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-34-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/1900-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1900-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-32-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/1900-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1900-33-0x00000000006E0000-0x00000000006FE000-memory.dmp

Filesize
120KB

Download
memory/1952-3-0x00000000009C0000-0x00000000009FC000-memory.dmp

Filesize
240KB

Download
memory/1952-1-0x0000000000F40000-0x0000000000FAE000-memory.dmp

Filesize
440KB

Download
memory/1952-2-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/1952-0-0x000000007405E000-0x000000007405F000-memory.dmp

Filesize
4KB

Download
memory/1952-12-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2408-15-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2408-13-0x0000000000CB0000-0x0000000000D1E000-memory.dmp

Filesize
440KB

Download
memory/2408-14-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2408-35-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2408-36-0x0000000074050000-0x000000007473E000-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