nanocore | d7dc5a4583f409639bf8c10eb62fbbc13ac2e1b8f702425e959d47e64463d45f

Analysis

max time kernel
91s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2023, 12:16

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General

Target
2a4d85fb030591cbfa42bbc72f27607e.exe
Size 836KB
Sample230201-pffrksfa5v
SHA256 d7dc5a4583f409639bf8c10eb62fbbc13ac2e1b8f702425e959d47e64463d45f
MD5 2a4d85fb030591cbfa42bbc72f27607e
SHA1 701232edaf6aa4a36509644d69b6a7c55443b1b6
SHA512 4e17def1c104c95bc784b58dd0b1445050d3489225f27c60ec0253af302f44e04da25c3743606865f85d1940a4ef3b90ed50d58b98ed0a0ccc21a39366a4a4e8
SSDEEP 24576:peia1r8NO9c1xqpB9cbOEx54w6RTc4N34HZ:ps1r8M9WmzcbOEbKE
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
127.0.0.1:1665

Mutex

be28fce4-4930-4ffe-96ed-0110cf99b889

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-11-05T12:54:30.362923036Z
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
SecureKMT
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
be28fce4-4930-4ffe-96ed-0110cf99b889
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\DSL Manager = "C:\\Program Files (x86)\\DSL Manager\\dslmgr.exe"	2a4d85fb030591cbfa42bbc72f27607e.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	2a4d85fb030591cbfa42bbc72f27607e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DSL Manager\dslmgr.exe	2a4d85fb030591cbfa42bbc72f27607e.exe
File opened for modification	C:\Program Files (x86)\DSL Manager\dslmgr.exe	2a4d85fb030591cbfa42bbc72f27607e.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
2500	schtasks.exe
3272	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3568	2a4d85fb030591cbfa42bbc72f27607e.exe
3568	2a4d85fb030591cbfa42bbc72f27607e.exe
3568	2a4d85fb030591cbfa42bbc72f27607e.exe
3568	2a4d85fb030591cbfa42bbc72f27607e.exe
3568	2a4d85fb030591cbfa42bbc72f27607e.exe
3568	2a4d85fb030591cbfa42bbc72f27607e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3568	2a4d85fb030591cbfa42bbc72f27607e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3568	2a4d85fb030591cbfa42bbc72f27607e.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3048 wrote to memory of 3568	3048	2a4d85fb030591cbfa42bbc72f27607e.exe	88
PID 3568 wrote to memory of 2500	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	89
PID 3568 wrote to memory of 2500	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	89
PID 3568 wrote to memory of 2500	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	89
PID 3568 wrote to memory of 3272	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	91
PID 3568 wrote to memory of 3272	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	91
PID 3568 wrote to memory of 3272	3568	2a4d85fb030591cbfa42bbc72f27607e.exe	91

C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe
"C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.exe
  "C:\Users\Admin\AppData\Local\Temp\2a4d85fb030591cbfa42bbc72f27607e.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:3568
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF2C1.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2500
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF40A.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3272

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

2a4d85fb030591cbfa42bbc72f27607e.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2a4d85fb030591cbfa42bbc72f27607e.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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tmpF2C1.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF2C1.tmp
Size 1KB
SHA256 53aa850603eee16af11fea494d9c8b704167d7e6fb214f9af01ef96d5e5fc99e
MD5 286af822f3f5aafb1b639770aa158902
SHA1 2b37f4650e33de89f356ccb0408b77538fed25dc
SHA512 9bb20cdc6406ec599816dfa3b5e7bd76e1ec6ac2cb3593a48c6067b97108b986bb60f543e7f4940666b2e7d6677b5607e3bb7b31d4c8325eb9a79759160c52ba
MD5 SHA1 SHA512

Submit Download

tmpF40A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpF40A.tmp
Size 1KB
SHA256 099c4a82d8e8ddf5ff801a8f08fb5a143834506e936ce846b380a42eb24e888e
MD5 a0bcaf1694d4fcae2c44258530850f35
SHA1 99e9ccea3a9dca8d94808f6488fdc37c0b3bfe73
SHA512 ad3f2fbc09f7d57c24a35a62f00251c93d480e065f3b7fbc7133736cb144a3031fdc9f3e8be8a1c6dcdb8b3def654618faab416f66a28628ab71e55de4df0da3
MD5 SHA1 SHA512

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memory/3048-135-0x00000000056C0000-0x00000000056CA000-memory.dmp

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memory/3048-136-0x0000000009120000-0x00000000091BC000-memory.dmp

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memory/3048-132-0x0000000000C40000-0x0000000000D14000-memory.dmp

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memory/3048-134-0x0000000005750000-0x00000000057E2000-memory.dmp

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memory/3048-133-0x0000000005D00000-0x00000000062A4000-memory.dmp

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memory/3568-138-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3568-144-0x0000000006DC0000-0x0000000006E26000-memory.dmp

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