nanocore | 66ff672b93bcc0ef9e19ba4a45b6f6c1943c21fe6256d2a0e448bd73049a7a6d

Analysis

max time kernel
73s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2022, 15:59

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General

Target
f4afae9fcd187aab035053c38630ffcb.exe
Size 1.1MB
Sample220726-te21mseeb7
SHA256 66ff672b93bcc0ef9e19ba4a45b6f6c1943c21fe6256d2a0e448bd73049a7a6d
MD5 f4afae9fcd187aab035053c38630ffcb
SHA1 c68526bd091d50197b52d73e494de011eb0eb7f9
SHA512 c86902f2ed2de5cfe403562363d153d3ff750f8f848c31c33bc1b59ad91638470b6b547ef3d84e93e2c426360ac646931a39958ae32b7d1534f7d87bab262bf1
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:6754
127.0.0.1:6754

Mutex

e9d74429-3eb4-4129-af20-2014507cbb2b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T14:02:59.809548536Z
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
6754
default_group
jasonX
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
e9d74429-3eb4-4129-af20-2014507cbb2b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
jasonbourne.bounceme.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\DPI Monitor = "C:\\Program Files (x86)\\DPI Monitor\\dpimon.exe"	f4afae9fcd187aab035053c38630ffcb.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	f4afae9fcd187aab035053c38630ffcb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4932 set thread context of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DPI Monitor\dpimon.exe	f4afae9fcd187aab035053c38630ffcb.exe
File opened for modification	C:\Program Files (x86)\DPI Monitor\dpimon.exe	f4afae9fcd187aab035053c38630ffcb.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
4208	schtasks.exe
4852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1732	f4afae9fcd187aab035053c38630ffcb.exe
1732	f4afae9fcd187aab035053c38630ffcb.exe
1732	f4afae9fcd187aab035053c38630ffcb.exe
1732	f4afae9fcd187aab035053c38630ffcb.exe
1732	f4afae9fcd187aab035053c38630ffcb.exe
1732	f4afae9fcd187aab035053c38630ffcb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1732	f4afae9fcd187aab035053c38630ffcb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	f4afae9fcd187aab035053c38630ffcb.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 4932 wrote to memory of 1732	4932	f4afae9fcd187aab035053c38630ffcb.exe	86
PID 1732 wrote to memory of 4208	1732	f4afae9fcd187aab035053c38630ffcb.exe	87
PID 1732 wrote to memory of 4208	1732	f4afae9fcd187aab035053c38630ffcb.exe	87
PID 1732 wrote to memory of 4208	1732	f4afae9fcd187aab035053c38630ffcb.exe	87
PID 1732 wrote to memory of 4852	1732	f4afae9fcd187aab035053c38630ffcb.exe	89
PID 1732 wrote to memory of 4852	1732	f4afae9fcd187aab035053c38630ffcb.exe	89
PID 1732 wrote to memory of 4852	1732	f4afae9fcd187aab035053c38630ffcb.exe	89

C:\Users\Admin\AppData\Local\Temp\f4afae9fcd187aab035053c38630ffcb.exe
"C:\Users\Admin\AppData\Local\Temp\f4afae9fcd187aab035053c38630ffcb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Users\Admin\AppData\Local\Temp\f4afae9fcd187aab035053c38630ffcb.exe
  "C:\Users\Admin\AppData\Local\Temp\f4afae9fcd187aab035053c38630ffcb.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:1732
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2395.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4208
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2442.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4852

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

Replay Monitor

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Downloads

f4afae9fcd187aab035053c38630ffcb.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f4afae9fcd187aab035053c38630ffcb.exe.log
Size 1KB
SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
MD5 e08f822522c617a40840c62e4b0fb45e
SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
MD5 SHA1 SHA512

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tmp2395.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2395.tmp
Size 1KB
SHA256 4a98b9143993951a38bedce1027be91d2db04fc91c06be831c89ebdca602d961
MD5 6a5eb7a6645d6f7a0c649432f6023083
SHA1 a672866573c5c074278e9106aeb86fbedb247df7
SHA512 11d85dc961818285afc04a07bc69dcdade4a5d6125b953362a2605e4a825f49013f50805e04e0371f737adb2d074d1687b4130dec86ab7feb0ed88e513c642e8
MD5 SHA1 SHA512

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tmp2442.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2442.tmp
Size 1KB
SHA256 ca607854bb6d7a457f80fdadeaf62a5471a71824defc531136c4b8a8452af426
MD5 fb16df60656546f3eed87417838a3342
SHA1 5c8cd1b4fdd2fa57a31fe30a65e332c30a20b4bc
SHA512 2a56a040dee5c375ef8bdffa7c4f3f0a379bcc387655201f744e8fc99e57a6ed3afdbb92f63b783e8d4354e62908c80e8e7aac1636748a117e1507f2ec0f35e8
MD5 SHA1 SHA512

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memory/1732-137-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4932-135-0x000000000E650000-0x000000000E6B6000-memory.dmp

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memory/4932-134-0x0000000009950000-0x00000000099EC000-memory.dmp

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memory/4932-133-0x0000000007550000-0x000000000755A000-memory.dmp

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memory/4932-130-0x00000000005C0000-0x00000000006D4000-memory.dmp

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memory/4932-132-0x00000000075A0000-0x0000000007632000-memory.dmp

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memory/4932-131-0x0000000007AB0000-0x0000000008054000-memory.dmp

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