nanocore | 7c0d6533e8f687c0a6d25629d443ebd569be0a40b74e4bcdda1a2c86cd453e52

Analysis

max time kernel
90s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
22/10/2022, 06:45

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General

Target
c1daf00115d9a9fe2345d8c97c526765.exe
Size 959KB
Sample221022-hh3wkabcb2
SHA256 7c0d6533e8f687c0a6d25629d443ebd569be0a40b74e4bcdda1a2c86cd453e52
MD5 c1daf00115d9a9fe2345d8c97c526765
SHA1 3cafbf61aeeaf771a1b625901953b790e40e6438
SHA512 b8c73d0c3bc369ae4a5339b9d8831ebadfc95ab52ba137b2787fcde920d8c830fcd2fb43fd509627c79bc55339638e4ebc4563ff74010cdebeb738e3152d4fad
SSDEEP 12288:Be6h2iNpfEuKuM1mA4/lRBYs74vG9T9V6UOlXXSQ5lUUNClc5ZA:Bxh1DM1mA49Yr29V6UOIQfUHlc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

tzitziklishop.ddns.net:1665

Mutex

f6041bb2-7c7b-4774-acc8-84a131b635ab

Attributes

activate_away_mode
true
backup_connection_host
tzitziklishop.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-07-22T04:21:36.365135136Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1665
default_group
OCTOBER
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
f6041bb2-7c7b-4774-acc8-84a131b635ab
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
tzitziklishop.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	c1daf00115d9a9fe2345d8c97c526765.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	c1daf00115d9a9fe2345d8c97c526765.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1484 set thread context of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	c1daf00115d9a9fe2345d8c97c526765.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	c1daf00115d9a9fe2345d8c97c526765.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4724	schtasks.exe
4328	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3340	c1daf00115d9a9fe2345d8c97c526765.exe
3340	c1daf00115d9a9fe2345d8c97c526765.exe
3340	c1daf00115d9a9fe2345d8c97c526765.exe
3340	c1daf00115d9a9fe2345d8c97c526765.exe
3340	c1daf00115d9a9fe2345d8c97c526765.exe
3340	c1daf00115d9a9fe2345d8c97c526765.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3340	c1daf00115d9a9fe2345d8c97c526765.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3340	c1daf00115d9a9fe2345d8c97c526765.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 1484 wrote to memory of 3340	1484	c1daf00115d9a9fe2345d8c97c526765.exe	92
PID 3340 wrote to memory of 4724	3340	c1daf00115d9a9fe2345d8c97c526765.exe	93
PID 3340 wrote to memory of 4724	3340	c1daf00115d9a9fe2345d8c97c526765.exe	93
PID 3340 wrote to memory of 4724	3340	c1daf00115d9a9fe2345d8c97c526765.exe	93
PID 3340 wrote to memory of 4328	3340	c1daf00115d9a9fe2345d8c97c526765.exe	95
PID 3340 wrote to memory of 4328	3340	c1daf00115d9a9fe2345d8c97c526765.exe	95
PID 3340 wrote to memory of 4328	3340	c1daf00115d9a9fe2345d8c97c526765.exe	95

C:\Users\Admin\AppData\Local\Temp\c1daf00115d9a9fe2345d8c97c526765.exe
"C:\Users\Admin\AppData\Local\Temp\c1daf00115d9a9fe2345d8c97c526765.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Users\Admin\AppData\Local\Temp\c1daf00115d9a9fe2345d8c97c526765.exe
  "C:\Users\Admin\AppData\Local\Temp\c1daf00115d9a9fe2345d8c97c526765.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4C2C.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4724
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4CE8.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

c1daf00115d9a9fe2345d8c97c526765.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c1daf00115d9a9fe2345d8c97c526765.exe.log
Size 1KB
SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
MD5 e08f822522c617a40840c62e4b0fb45e
SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
MD5 SHA1 SHA512

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tmp4C2C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4C2C.tmp
Size 1KB
SHA256 66dc6823be2034d9137102b46d6b660b2e39aac43069cbb18e69d3dff3284809
MD5 5faa2b4d361d41fe5582b46a12e1538f
SHA1 dab37af2b32480c30d1d84abb339d62f4d23adbf
SHA512 c319862b065496dc192c3522e07edd83ed0d02309cdc5b3d7b399ffeafceeb9942caf1e3c1bd1a70aa94c689b8abe652ecf37e0bdc9b2d2c73008691ac576539
MD5 SHA1 SHA512

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tmp4CE8.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4CE8.tmp
Size 1KB
SHA256 99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
MD5 2f26d92c1eeead3896820e56ec46f6f1
SHA1 d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA512 6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892
MD5 SHA1 SHA512

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memory/1484-133-0x0000000005B50000-0x00000000060F4000-memory.dmp

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memory/1484-134-0x00000000054B0000-0x0000000005542000-memory.dmp

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memory/1484-135-0x0000000005560000-0x000000000556A000-memory.dmp

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memory/1484-136-0x00000000075A0000-0x000000000763C000-memory.dmp

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memory/1484-137-0x000000000B610000-0x000000000B676000-memory.dmp

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memory/1484-132-0x0000000000A30000-0x0000000000B26000-memory.dmp

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memory/3340-139-0x0000000000400000-0x0000000000438000-memory.dmp

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