nanocore | d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13

General

Target

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe
Size

413KB
MD5

2b454720aaefef4b89bafef4908ef00a
SHA1

15943c93bf24a3911e847cdca8fb5c2b9d71cfea
SHA256

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13
SHA512

16e968505bc091ac9bd757cd42eaf640c4a9293f9bd14e891c6eb137c9bdbd6b7f8cb65b41bcc10be8e3815653985b32cdd4a5c3e2e98c9d0bbe88c33d3f8ab3
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUo:ITNYrnE3bm/CiejewY5vT

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
2448	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.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 2448 set thread context of 3992	2448	ximo2ubzn1i.exe	87

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:

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.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
3992	regasm.exe
3992	regasm.exe
3992	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
3992	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	3992	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 1496 wrote to memory of 2448	1496	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe	86
PID 1496 wrote to memory of 2448	1496	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe	86
PID 1496 wrote to memory of 2448	1496	d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe	86
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87
PID 2448 wrote to memory of 3992	2448	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe
"C:\Users\Admin\AppData\Local\Temp\d7313070ab05bb444611a8f16591ec335398ff3c33193dab07316602ddcbea13.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1496
- 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:2448
- - 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:3992

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

Query Registry

1

T1012

System Information Discovery

3

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
413KB

MD5
63ace4842edb7720fbf10fbc8e71273c

SHA1
6e4a83c2a447cdd809bcb2de768c802f154b8977

SHA256
3c0c34d096aebf5a7b2827313723237786c2bb6915efeeaeddcb2e38b0f92b23

SHA512
78dd6888bfc0d453c03f573bc6648c8a01a109fd69f2af83fd2a0d36fcd7e1340918801ba59d61d7802cbe814855efc9c319ff550b5f6214d5e91151f1f5d48c

Download Submit
memory/1496-6-0x0000000004F20000-0x0000000004F5C000-memory.dmp

Filesize
240KB

Download
memory/1496-2-0x00000000051C0000-0x0000000005764000-memory.dmp

Filesize
5.6MB

Download
memory/1496-3-0x0000000004CB0000-0x0000000004D42000-memory.dmp

Filesize
584KB

Download
memory/1496-4-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/1496-5-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

Filesize
40KB

Download
memory/1496-32-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/1496-1-0x0000000000220000-0x000000000028E000-memory.dmp

Filesize
440KB

Download
memory/1496-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/2448-20-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/2448-21-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/2448-35-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/2448-33-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3992-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3992-27-0x0000000005170000-0x000000000520C000-memory.dmp

Filesize
624KB

Download
memory/3992-29-0x0000000005150000-0x000000000515A000-memory.dmp

Filesize
40KB

Download
memory/3992-30-0x0000000005500000-0x000000000551E000-memory.dmp

Filesize
120KB

Download
memory/3992-31-0x0000000006010000-0x000000000601A000-memory.dmp

Filesize
40KB

Download
memory/3992-26-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3992-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3992-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3992-36-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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