nanocore | e50bad4ff6bfecab12f99bcbb4152b0fda73f59bbff3a856b65a1c42ac65975b

Analysis

max time kernel
94s
max time network
153s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
26/07/2022, 15:59

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

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 Monitor = "C:\\Program Files (x86)\\ARP Monitor\\arpmon.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 1660 set thread context of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Monitor\arpmon.exe	5869c4d55d9513c3fe18b5f4a28de990.exe
File opened for modification	C:\Program Files (x86)\ARP Monitor\arpmon.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
288	schtasks.exe
1064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1844	5869c4d55d9513c3fe18b5f4a28de990.exe
1844	5869c4d55d9513c3fe18b5f4a28de990.exe
1844	5869c4d55d9513c3fe18b5f4a28de990.exe
1844	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1844	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1844	5869c4d55d9513c3fe18b5f4a28de990.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1660 wrote to memory of 1844	1660	5869c4d55d9513c3fe18b5f4a28de990.exe	28
PID 1844 wrote to memory of 288	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	29
PID 1844 wrote to memory of 288	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	29
PID 1844 wrote to memory of 288	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	29
PID 1844 wrote to memory of 288	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	29
PID 1844 wrote to memory of 1064	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	31
PID 1844 wrote to memory of 1064	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	31
PID 1844 wrote to memory of 1064	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	31
PID 1844 wrote to memory of 1064	1844	5869c4d55d9513c3fe18b5f4a28de990.exe	31

C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe
"C:\Users\Admin\AppData\Local\Temp\5869c4d55d9513c3fe18b5f4a28de990.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1660
- 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:1844
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBBC2.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:288
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBD29.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1064

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

Loading Replay Monitor...

Downloads

tmpBBC2.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpBBC2.tmp
Size 1KB
SHA256 68a45802e52099df7e8adc690409eaa0aa5aeb56580079bd7d62735d84732dde
MD5 8fb46bfad9fd45d8957bac5e6b34d1e5
SHA1 ffcad2392bbaa33e52112df02e590250d0eacae8
SHA512 aa735905325a3e10e02248bf1a141c417ef953537dc35ff67c3406a5e70df2796897a9def497b53c62fd7f52ace6c41a7973fbc20ed3743b1ecf8d0ef548f4ae
MD5 SHA1 SHA512

Submit Download

tmpBD29.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpBD29.tmp
Size 1KB
SHA256 2165ad57e4cd29e911a2861e1fe6366ce11912c95f8e5ede61d247b75753001a
MD5 acc7d7829edec6af26aa18f8ca7776ef
SHA1 29f5290d08127f29924a2eb189e21b9bcfbb6f3a
SHA512 07e84e0f7eb030dc0f2efde201c023051a2559dbdcde957fea73669a6e2deac9848cf3503e4e7f9524660d61ead850632bb998f12b73b887dfe841286002bc5b
MD5 SHA1 SHA512

Submit Download

memory/1660-55-0x00000000756C1000-0x00000000756C3000-memory.dmp

Download

memory/1660-56-0x00000000008D0000-0x00000000008E6000-memory.dmp

Download

memory/1660-57-0x0000000000900000-0x000000000090A000-memory.dmp

Download

memory/1660-58-0x0000000005380000-0x0000000005408000-memory.dmp

Download

memory/1660-59-0x0000000005010000-0x000000000504A000-memory.dmp

Download

memory/1660-54-0x0000000000A90000-0x0000000000B28000-memory.dmp

Download

memory/1844-63-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-80-0x0000000001F50000-0x0000000001F62000-memory.dmp

Download

memory/1844-71-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-69-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-66-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-64-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-61-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-60-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1844-77-0x00000000005C0000-0x00000000005CA000-memory.dmp

Download

memory/1844-78-0x0000000000610000-0x000000000062E000-memory.dmp

Download

memory/1844-79-0x0000000000A80000-0x0000000000A8A000-memory.dmp

Download

memory/1844-81-0x0000000001FB0000-0x0000000001FCA000-memory.dmp

Download

memory/1844-82-0x00000000020D0000-0x00000000020DE000-memory.dmp

Download

memory/1844-83-0x00000000020E0000-0x00000000020F2000-memory.dmp

Download

memory/1844-84-0x0000000004260000-0x000000000426E000-memory.dmp

Download

memory/1844-85-0x0000000004270000-0x000000000427C000-memory.dmp

Download

memory/1844-86-0x0000000004280000-0x0000000004294000-memory.dmp

Download

memory/1844-87-0x0000000004290000-0x00000000042A0000-memory.dmp

Download

memory/1844-88-0x00000000042A0000-0x00000000042B4000-memory.dmp

Download

memory/1844-89-0x0000000004740000-0x000000000474E000-memory.dmp

Download

memory/1844-90-0x0000000004760000-0x000000000478E000-memory.dmp

Download

memory/1844-91-0x0000000004810000-0x0000000004824000-memory.dmp

Download