nanocore | 29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2

General

Target

29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
Size

255KB
MD5

0972c71f0ba1298d064bdebc27f9b159
SHA1

90ac2c8a7385644b3affc6b78b77c584ba9f929e
SHA256

29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2
SHA512

3024efc90a4558004d0be87bc072c2ed7e36d914a9fc89ad6dd2febaebb8ee8ec6dc745f79dde4b03cba125a1dab7497bc768fc53eef4a5da42e3372020a409e
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQSz:EeGUA5YZazpXUmZhdz

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe

Executes dropped EXE 2 IoCs

pid	Process
3928	a1punf5t2of.exe
4564	a1punf5t2of.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3928 set thread context of 4564	3928	a1punf5t2of.exe	97

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	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4564	a1punf5t2of.exe
4564	a1punf5t2of.exe
4564	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4564	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4564	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3928	1616	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	84
PID 1616 wrote to memory of 3928	1616	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	84
PID 1616 wrote to memory of 3928	1616	29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe	84
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97
PID 3928 wrote to memory of 4564	3928	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe
"C:\Users\Admin\AppData\Local\Temp\29824b500445f1d721ad110fc19a95010271a3b90d34b270a15f8965188bdfb2.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3928
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4564

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
255KB

MD5
34e3aa71b2a9bf46e3f11bbd22202359

SHA1
56b3f4bfb9bb1e069343e404f58dff9b90f9a60e

SHA256
a88c5ba378ad7781fc0cda6868102a240eccc1380f15e85411605f7e84ba559c

SHA512
50fead7a2ad9bf31a0d53fe61538c45b6b3f6102f2e3c9a0bdd6e9b3376a614fe82e392c6227292498d39338862a555f4cd716985a259a75c9e1f98026aebb84

Download Submit
memory/1616-0-0x00000000754A2000-0x00000000754A3000-memory.dmp

Filesize
4KB

Download
memory/1616-1-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-2-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-3-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-4-0x00000000754A2000-0x00000000754A3000-memory.dmp

Filesize
4KB

Download
memory/1616-5-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-6-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-7-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-22-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-24-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-23-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-21-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-25-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-26-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3928-39-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4564-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4564-32-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-34-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-33-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-36-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-37-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/4564-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4564-40-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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