nanocore | 28a8b5760f88ff56fccac79f506aa87de847161f5b3af7158792d098a60785dd

General

Target

55d261de4ebfec14610e3019bdb47e1d.exe
Size

663KB
MD5

55d261de4ebfec14610e3019bdb47e1d
SHA1

a89750499dca367037b9388a820e8fb56cd2f3bb
SHA256

28a8b5760f88ff56fccac79f506aa87de847161f5b3af7158792d098a60785dd
SHA512

1866b89a217f81de6b106a6094e526a872380ba35f45d83d74ca890dd97da331e127f5007b7e194e06b85b74866948f950fbff17773442e664fb0a364d2b339e

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.98.208:50720

suchwoni13.ddns.net:50720

Mutex

b96b95d9-5642-498b-b1fc-e921a47a2e5a

Attributes

activate_away_mode
true
backup_connection_host
suchwoni13.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-06-29T08:36:20.191838936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
50720
default_group
PUNK44
enable_debug_mode
true
gc_threshold
1.0485779e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485779e+07
mutex
b96b95d9-5642-498b-b1fc-e921a47a2e5a
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
194.5.98.208
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5009
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5008
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsv.exe"	55d261de4ebfec14610e3019bdb47e1d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsv.exe"	55d261de4ebfec14610e3019bdb47e1d.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	55d261de4ebfec14610e3019bdb47e1d.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	55d261de4ebfec14610e3019bdb47e1d.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

description	pid	process	target process
PID 848 set thread context of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 set thread context of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe

Drops file in Program Files directory 2 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe

description	ioc	process
File created	C:\Program Files (x86)\DSL Service\dslsv.exe	55d261de4ebfec14610e3019bdb47e1d.exe
File opened for modification	C:\Program Files (x86)\DSL Service\dslsv.exe	55d261de4ebfec14610e3019bdb47e1d.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

pid	process
848	55d261de4ebfec14610e3019bdb47e1d.exe
1720	55d261de4ebfec14610e3019bdb47e1d.exe
1720	55d261de4ebfec14610e3019bdb47e1d.exe
2044	55d261de4ebfec14610e3019bdb47e1d.exe
1600	55d261de4ebfec14610e3019bdb47e1d.exe
1600	55d261de4ebfec14610e3019bdb47e1d.exe
1600	55d261de4ebfec14610e3019bdb47e1d.exe
1600	55d261de4ebfec14610e3019bdb47e1d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe

pid process

1600 55d261de4ebfec14610e3019bdb47e1d.exe

pid	process
1600	55d261de4ebfec14610e3019bdb47e1d.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

description	pid	process
Token: SeDebugPrivilege	848	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	1720	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	1720	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	1720	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	2044	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	1600	55d261de4ebfec14610e3019bdb47e1d.exe
Token: SeDebugPrivilege	1600	55d261de4ebfec14610e3019bdb47e1d.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe55d261de4ebfec14610e3019bdb47e1d.exe

C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe
"C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848

C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe
"{path}"
2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720

C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe
"C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

C:\Users\Admin\AppData\Local\Temp\55d261de4ebfec14610e3019bdb47e1d.exe
"{path}"
4⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\DSL Service\dslsv.exe
Filesize
663KB

MD5
55d261de4ebfec14610e3019bdb47e1d

SHA1
a89750499dca367037b9388a820e8fb56cd2f3bb

SHA256
28a8b5760f88ff56fccac79f506aa87de847161f5b3af7158792d098a60785dd

SHA512
1866b89a217f81de6b106a6094e526a872380ba35f45d83d74ca890dd97da331e127f5007b7e194e06b85b74866948f950fbff17773442e664fb0a364d2b339e

Download Submit
C:\Users\Admin\AppData\Roaming\5A8ED3AC-CAE1-4E8B-9FD6-2D374700ADEF\catalog.dat
Filesize
128B

MD5
0a9c5eae8756d6fc90f59d8d71a79e1e

SHA1
0f7d6aaed17cd18dc614535ed26335c147e29ed7

SHA256
b1921ea14c66927397baf3fa456c22b93c30c3de23546087c0b18551ce5001c5

SHA512
78c2f399ac49c78d89915dff99ac955b5e0ab07baad61b07b0ce073c88c1d3a9f1d302c2413691b349dd34441b0ff909c08a4f71e2f1b73f46c1ff308bc7cf9a

Download Submit
C:\Users\Admin\AppData\Roaming\5A8ED3AC-CAE1-4E8B-9FD6-2D374700ADEF\run.dat
Filesize
8B

MD5
02ed04c2b696af15b53ba88a6abaef66

SHA1
b189b360761eb7b8996985887c6220c578a699ab

SHA256
02d1c62f7dcb882380998930dd5ced798deb5a15c3791fc2e0e25ca9eed34483

SHA512
058052e26ea94795bec2123b9bbe66bcb6cd74a232a9d9e9ec8cfe8a19379ad88856de287e07f66f70e33ed29c25da4d33acb721df78f2804e8909481344965e

Download Submit
C:\Users\Admin\AppData\Roaming\5A8ED3AC-CAE1-4E8B-9FD6-2D374700ADEF\storage.dat
Filesize
268KB

MD5
1e639455652305f70a15588dcee082c7

SHA1
7e147851acfe18053f60702108b956fdf977e766

SHA256
31090e4756888688e0a0c50579e7f71b2880cb0ebe947d23c93a2225903da738

SHA512
255d4eb3149250ebb6d7adfdb9eff9ad6700869c308c1cd37613b3218952a5ae644b08a387ce2f23442e003599c9b178e4474d3ceb59e9ea72c53af6b5eeb4be

Download Submit
memory/848-58-0x00000000009C0000-0x00000000009FA000-memory.dmp

Filesize
232KB

Download
memory/848-54-0x0000000000DD0000-0x0000000000E7C000-memory.dmp

Filesize
688KB

Download
memory/848-57-0x0000000005170000-0x00000000051FE000-memory.dmp

Filesize
568KB

Download
memory/848-56-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/848-55-0x0000000075951000-0x0000000075953000-memory.dmp

Filesize
8KB

Download
memory/1600-100-0x0000000000770000-0x0000000000784000-memory.dmp

Filesize
80KB

Download
memory/1600-99-0x0000000000790000-0x00000000007BE000-memory.dmp

Filesize
184KB

Download
memory/1600-98-0x0000000000750000-0x000000000075E000-memory.dmp

Filesize
56KB

Download
memory/1600-97-0x0000000000510000-0x0000000000524000-memory.dmp

Filesize
80KB

Download
memory/1600-96-0x00000000006D0000-0x00000000006EA000-memory.dmp

Filesize
104KB

Download
memory/1600-95-0x0000000000440000-0x000000000044C000-memory.dmp

Filesize
48KB

Download
memory/1600-85-0x000000000041E792-mapping.dmp

Download
memory/1720-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-75-0x00000000005E0000-0x00000000005EA000-memory.dmp

Filesize
40KB

Download
memory/1720-74-0x00000000003E0000-0x00000000003FE000-memory.dmp

Filesize
120KB

Download
memory/1720-73-0x00000000003D0000-0x00000000003DC000-memory.dmp

Filesize
48KB

Download
memory/1720-72-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/1720-70-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-66-0x000000000041E792-mapping.dmp

Download
memory/1720-65-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-63-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-59-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1720-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2044-76-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 848 wrote to memory of 1720	848	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 1720 wrote to memory of 2044	1720	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 1720 wrote to memory of 2044	1720	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 1720 wrote to memory of 2044	1720	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 1720 wrote to memory of 2044	1720	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe
PID 2044 wrote to memory of 1600	2044	55d261de4ebfec14610e3019bdb47e1d.exe	55d261de4ebfec14610e3019bdb47e1d.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads