nanocore | e50bad4ff6bfecab12f99bcbb4152b0fda73f59bbff3a856b65a1c42ac65975b

Analysis

max time kernel
69s
max time network
151s
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
5869c4d55d9513c3fe18b5f4a28de990.exe
Size 579KB
Sample220726-te21msbcfr
SHA256 e50bad4ff6bfecab12f99bcbb4152b0fda73f59bbff3a856b65a1c42ac65975b
MD5 5869c4d55d9513c3fe18b5f4a28de990
SHA1 843de0a250544eef459a164252a79415132afab4
SHA512 27bcdab0f3dce486429be3189ec7c2b38b3353d88145658057990291d6716e885c5f93a2556dfd732ee43716e6c9f688836901141bc7aa63aad920ebb6dcbd1a
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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	5869c4d55d9513c3fe18b5f4a28de990.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	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4704 set thread context of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	5869c4d55d9513c3fe18b5f4a28de990.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	5869c4d55d9513c3fe18b5f4a28de990.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
3704	schtasks.exe
3708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4704	5869c4d55d9513c3fe18b5f4a28de990.exe
4704	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe
4116	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4116	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4704	5869c4d55d9513c3fe18b5f4a28de990.exe
Token: SeDebugPrivilege	4116	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 3228	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	84
PID 4704 wrote to memory of 3228	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	84
PID 4704 wrote to memory of 3228	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	84
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4704 wrote to memory of 4116	4704	5869c4d55d9513c3fe18b5f4a28de990.exe	85
PID 4116 wrote to memory of 3704	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	86
PID 4116 wrote to memory of 3704	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	86
PID 4116 wrote to memory of 3704	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	86
PID 4116 wrote to memory of 3708	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	88
PID 4116 wrote to memory of 3708	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	88
PID 4116 wrote to memory of 3708	4116	5869c4d55d9513c3fe18b5f4a28de990.exe	88

C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe
"C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe
  "C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe"
  2⤵
  PID:3228
- C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe
  "C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.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:4116
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4E9D.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3704
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4F79.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3708

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

5869c4d55d9513c3fe18b5f4a28de990.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5869c4d55d9513c3fe18b5f4a28de990.exe.log
Size 1KB
SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
MD5 e08f822522c617a40840c62e4b0fb45e
SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
MD5 SHA1 SHA512

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tmp4E9D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4E9D.tmp
Size 1KB
SHA256 68a45802e52099df7e8adc690409eaa0aa5aeb56580079bd7d62735d84732dde
MD5 8fb46bfad9fd45d8957bac5e6b34d1e5
SHA1 ffcad2392bbaa33e52112df02e590250d0eacae8
SHA512 aa735905325a3e10e02248bf1a141c417ef953537dc35ff67c3406a5e70df2796897a9def497b53c62fd7f52ace6c41a7973fbc20ed3743b1ecf8d0ef548f4ae
MD5 SHA1 SHA512

Submit Download

tmp4F79.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4F79.tmp
Size 1KB
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327
MD5 SHA1 SHA512

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memory/4116-138-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4704-134-0x00000000073B0000-0x000000000744C000-memory.dmp

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memory/4704-135-0x0000000000EC0000-0x0000000000F26000-memory.dmp

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memory/4704-130-0x0000000000370000-0x0000000000408000-memory.dmp

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memory/4704-133-0x0000000002940000-0x000000000294A000-memory.dmp

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memory/4704-132-0x0000000004DA0000-0x0000000004E32000-memory.dmp

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memory/4704-131-0x00000000054F0000-0x0000000005A94000-memory.dmp

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