nanocore | 350dbbfe5a8fc297aa5f89f9c2d4f3a77a13962a628dcc2719e482aeaebfaab4

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/08/2026, 02:25

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General

Target
2BHT43.exe
Size 203KB
Sample260804-cws1matxcw
SHA256 350dbbfe5a8fc297aa5f89f9c2d4f3a77a13962a628dcc2719e482aeaebfaab4
MD5 f6ae60a1db830fa65947c6f88a453d4b
SHA1 6cfaacd26c02f23147560a25b98a1a5e105082f0
SHA512 3f757af57a3c7b79847eb9d691e1a79c4945b6cbdc1f61e7db151798874eb2dcac19f37da292f6927d489deb0a5c038afe4bc1730e67ff5775fe257766e9c5d3
SSDEEP 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIVMC/Ma/FfqL4m1FYeRBtm23S:MLV6Bta6dtJmakIM5+/BFCh1FjM23S
TLSH
T1DA14CF167BA94A2FE29E867D611202138379C2E398C3F3DF28D464B78B667E506071D7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

socolivec.io:443
www.socolivec.io:443

Mutex

3d8ac5d8-faed-4370-ad44-4d8653522103

Attributes

activate_away_mode
true
backup_connection_host
www.socolivec.io
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2026-05-16T04:07:08.786320136Z
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
443
default_group
Default
enable_debug_mode
false
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
3d8ac5d8-faed-4370-ad44-4d8653522103
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
socolivec.io
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
4997
run_delay
9
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

Family: NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 1 IoCs

pid	Process
2056	dslsv.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsv.exe"	2BHT43.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2BHT43.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DSL Service\dslsv.exe	2BHT43.exe
File opened for modification	C:\Program Files (x86)\DSL Service\client.log	dslsv.exe
File created	C:\Program Files (x86)\DSL Service\dslsv.exe	2BHT43.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2BHT43.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dslsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2BHT43.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4548	schtasks.exe
4000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe
8	2BHT43.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
8	2BHT43.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	8	2BHT43.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 8 wrote to memory of 4548	8	2BHT43.exe	86
PID 8 wrote to memory of 4000	8	2BHT43.exe	89

C:\Users\Admin\AppData\Local\Temp\2BHT43.exe
"C:\Users\Admin\AppData\Local\Temp\2BHT43.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:8
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp49D5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4548
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4B6D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4000

C:\Program Files (x86)\DSL Service\dslsv.exe
"C:\Program Files (x86)\DSL Service\dslsv.exe"
1⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:2056

C:\Users\Admin\AppData\Local\Temp\2BHT43.exe
"C:\Users\Admin\AppData\Local\Temp\2BHT43.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2664

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

dslsv.exe

Path C:\Program Files (x86)\DSL Service\dslsv.exe
Size 203KB
SHA256 350dbbfe5a8fc297aa5f89f9c2d4f3a77a13962a628dcc2719e482aeaebfaab4
MD5 f6ae60a1db830fa65947c6f88a453d4b
SHA1 6cfaacd26c02f23147560a25b98a1a5e105082f0
SHA512 3f757af57a3c7b79847eb9d691e1a79c4945b6cbdc1f61e7db151798874eb2dcac19f37da292f6927d489deb0a5c038afe4bc1730e67ff5775fe257766e9c5d3
SSDEEP 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIVMC/Ma/FfqL4m1FYeRBtm23S:MLV6Bta6dtJmakIM5+/BFCh1FjM23S
TLSH
T1DA14CF167BA94A2FE29E867D611202138379C2E398C3F3DF28D464B78B667E506071D7
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

tmp49D5.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp49D5.tmp
Size 1KB
SHA256 b4c934f76c038eb680ad6d0377123e1e8da12b3b53bb39b47748fe736203b5cf
MD5 cc7b90706fb610ff5300101c76f2d30a
SHA1 4976fdbdf6a63ec7e1570b65231b525d12f01a89
SHA512 befbaac7768f18571e204f3b4fb5487cf127ccc81cb25bc11619d42d8623da7184ab998de298660da479fef5e3d84a2335c9cd24abdc6605857d5c88617caee6
TLSH
T14C21C064ACC0F61F66715629A39197C2DE2A57A701564138FCCC4E7F3FB6186304316B
MD5 SHA1 SHA512 TLSH

Submit Download

tmp4B6D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4B6D.tmp
Size 1KB
SHA256 abd73bfca8458750ee751d4c6c106d54dcf0969592f476acc64ab0d7f2bb1978
MD5 afb71a33ece3758f782f052bbe5da94f
SHA1 e69b9070ff52f81fdf01a40f775d021e4b4e71e4
SHA512 22c45992ca358ca9d4605ac426b65903b11b27db1b9c608739245dc412aa256d0908566626b3cfdafb32fca0809bf46c8824ab98cea7b7662216c915e6ef013f
TLSH
T1FD21C064ACC0F65B66715625A39157C2DF2A97A341664138FCCC4A7F2FB6186304316B
MD5 SHA1 SHA512 TLSH

Submit Download

memory/8-1-0x00000000748D2000-0x00000000748D4000-memory.dmp

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memory/8-0-0x0000000000C00000-0x0000000000C10000-memory.dmp

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memory/8-15-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/8-16-0x0000000000C00000-0x0000000000C10000-memory.dmp

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memory/8-17-0x00000000748D2000-0x00000000748D4000-memory.dmp

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memory/8-22-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2056-8-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2056-9-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2056-19-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2664-13-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2664-14-0x00000000748D0000-0x0000000074E81000-memory.dmp

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memory/2664-21-0x00000000748D0000-0x0000000074E81000-memory.dmp

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