nanocore | f2bc2fdee98a445cec33acbb85ac4e9768668f7f04abb4d9720da3c23ded558e

Analysis

max time kernel
92s
max time network
155s
platform
windows7_x64
resource
win7-20220414-en
submitted
14/07/2022, 02:51

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General

Target
enquiry july 2022.exe
Size 957KB
Sample220714-db6awsadfm
SHA256 f2bc2fdee98a445cec33acbb85ac4e9768668f7f04abb4d9720da3c23ded558e
MD5 1c2f12329ebb7099ec1ac70b72d83d77
SHA1 0f295584a39660d8e99b4ed28d600173ca9ab3e3
SHA512 3dace083dba4d49b5c11d382d1c05c1984535407d509cabc9237e732e7547741a31a5ad4657ae9a0c6ba3cbf3298579dcb0d73811d115fb52d18f23f0e47c963
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

104.144.69.159:54984

Mutex

606f9d89-eee0-4250-9361-ff60bb0280d5

Attributes

activate_away_mode
true
backup_connection_host
104.144.69.159
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-16T17:50:02.994015136Z
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
54984
default_group
Default
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
606f9d89-eee0-4250-9361-ff60bb0280d5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
104.144.69.159
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

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 Service = "C:\\Program Files (x86)\\DSL Service\\dslsvc.exe"	enquiry july 2022.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	enquiry july 2022.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 2000	1100	enquiry july 2022.exe	27

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DSL Service\dslsvc.exe	enquiry july 2022.exe
File opened for modification	C:\Program Files (x86)\DSL Service\dslsvc.exe	enquiry july 2022.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
1964	schtasks.exe
1700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2000	enquiry july 2022.exe
2000	enquiry july 2022.exe
2000	enquiry july 2022.exe
2000	enquiry july 2022.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2000	enquiry july 2022.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	enquiry july 2022.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 1100 wrote to memory of 2000	1100	enquiry july 2022.exe	27
PID 2000 wrote to memory of 1964	2000	enquiry july 2022.exe	28
PID 2000 wrote to memory of 1964	2000	enquiry july 2022.exe	28
PID 2000 wrote to memory of 1964	2000	enquiry july 2022.exe	28
PID 2000 wrote to memory of 1964	2000	enquiry july 2022.exe	28
PID 2000 wrote to memory of 1700	2000	enquiry july 2022.exe	30
PID 2000 wrote to memory of 1700	2000	enquiry july 2022.exe	30
PID 2000 wrote to memory of 1700	2000	enquiry july 2022.exe	30
PID 2000 wrote to memory of 1700	2000	enquiry july 2022.exe	30

C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe
"C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe
  "C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.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:2000
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD318.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1964
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD49F.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1700

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

tmpD318.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD318.tmp
Size 1KB
SHA256 7e9a11a92d652c4f4c1b269e32c32d5ab6a4c08452185ce4699a4ec04717c37f
MD5 d75fe75e42ab835efe1a785fa7741e0b
SHA1 e7e0eb2e87b32986de27692fd02bd1dc875434fc
SHA512 d1bc17ea42343f612ad766173c895b379ec4d9ba6c016a57a5b23450902a829ed7d981957df5479993c2d07a972d4b0a72099151a3f988fba06e50c8801d42b9
MD5 SHA1 SHA512

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tmpD49F.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD49F.tmp
Size 1KB
SHA256 d524ed3f3648a50ab92cf755461af48ed0c973a3edfba3a4cd0fad3d2e833183
MD5 f34c9976546ad9fc8624117687e1b732
SHA1 df5de84989e77f019a10e10f2e8a44bca2dc620d
SHA512 cd90ca19818bcdf0ec6ee9bafd47749e87ffb8f5c4711ef6c73483acf73399b2ab8c7b55f98303fcce409591647741ceb2ddd7b399ad62b2f5b18ed5378c8260
MD5 SHA1 SHA512

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memory/1100-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

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memory/1100-56-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/1100-57-0x0000000000420000-0x000000000042E000-memory.dmp

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memory/1100-58-0x0000000005AB0000-0x0000000005B6C000-memory.dmp

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memory/1100-59-0x0000000004E60000-0x0000000004ED6000-memory.dmp

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memory/1100-54-0x00000000012B0000-0x00000000013A6000-memory.dmp

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memory/2000-63-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-80-0x0000000000640000-0x0000000000652000-memory.dmp

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memory/2000-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-71-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-66-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-60-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2000-77-0x0000000000460000-0x000000000046A000-memory.dmp

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memory/2000-78-0x0000000000550000-0x000000000056E000-memory.dmp

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memory/2000-79-0x00000000004B0000-0x00000000004BA000-memory.dmp

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memory/2000-81-0x0000000000690000-0x00000000006AA000-memory.dmp

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memory/2000-82-0x00000000006C0000-0x00000000006CE000-memory.dmp

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memory/2000-83-0x0000000000710000-0x0000000000722000-memory.dmp

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memory/2000-84-0x0000000000910000-0x000000000091E000-memory.dmp

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memory/2000-85-0x0000000000960000-0x000000000096C000-memory.dmp

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memory/2000-86-0x0000000000970000-0x0000000000984000-memory.dmp

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memory/2000-87-0x0000000000980000-0x0000000000990000-memory.dmp

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memory/2000-88-0x0000000000B70000-0x0000000000B84000-memory.dmp

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memory/2000-89-0x0000000000B80000-0x0000000000B8E000-memory.dmp

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memory/2000-90-0x0000000000D90000-0x0000000000DBE000-memory.dmp

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memory/2000-91-0x0000000000BA0000-0x0000000000BB4000-memory.dmp

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