nanocore | f2bc2fdee98a445cec33acbb85ac4e9768668f7f04abb4d9720da3c23ded558e

Analysis

max time kernel
91s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-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\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.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 3508 set thread context of 3456	3508	enquiry july 2022.exe	93

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	enquiry july 2022.exe
File created	C:\Program Files (x86)\WPA Monitor\wpamon.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
4640	schtasks.exe
3520	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3508	enquiry july 2022.exe
3508	enquiry july 2022.exe
3508	enquiry july 2022.exe
3508	enquiry july 2022.exe
3456	enquiry july 2022.exe
3456	enquiry july 2022.exe
3456	enquiry july 2022.exe
3456	enquiry july 2022.exe
3456	enquiry july 2022.exe
3456	enquiry july 2022.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3456	enquiry july 2022.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	enquiry july 2022.exe
Token: SeDebugPrivilege	3456	enquiry july 2022.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 5072	3508	enquiry july 2022.exe	91
PID 3508 wrote to memory of 5072	3508	enquiry july 2022.exe	91
PID 3508 wrote to memory of 5072	3508	enquiry july 2022.exe	91
PID 3508 wrote to memory of 5040	3508	enquiry july 2022.exe	92
PID 3508 wrote to memory of 5040	3508	enquiry july 2022.exe	92
PID 3508 wrote to memory of 5040	3508	enquiry july 2022.exe	92
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3508 wrote to memory of 3456	3508	enquiry july 2022.exe	93
PID 3456 wrote to memory of 4640	3456	enquiry july 2022.exe	94
PID 3456 wrote to memory of 4640	3456	enquiry july 2022.exe	94
PID 3456 wrote to memory of 4640	3456	enquiry july 2022.exe	94
PID 3456 wrote to memory of 3520	3456	enquiry july 2022.exe	96
PID 3456 wrote to memory of 3520	3456	enquiry july 2022.exe	96
PID 3456 wrote to memory of 3520	3456	enquiry july 2022.exe	96

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe
  "C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe"
  2⤵
  PID:5072
- C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe
  "C:\Users\Admin\AppData\Local\Temp\enquiry july 2022.exe"
  2⤵
  PID:5040
- 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:3456
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7B79.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4640
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7BF7.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3520

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

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Downloads

enquiry july 2022.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\enquiry july 2022.exe.log
Size 1KB
SHA256 a75686eed807c36b056311dddc898582fd4063135fc5728d2bdd3c6e1f5ab688
MD5 fc57dcb1a143324278cf61d88f8c67ad
SHA1 807d546b4296091d11a8df6a11157a5f12dd7fd5
SHA512 33ac55a68ac8371bf00af55e38455e886dc6aa681388622a55bf4473b1f4eda4d75a8211ea61df288ccdb26e838785da08094a7f1aac878da6ccd2e573f3bcb8
MD5 SHA1 SHA512

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tmp7B79.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7B79.tmp
Size 1KB
SHA256 7e9a11a92d652c4f4c1b269e32c32d5ab6a4c08452185ce4699a4ec04717c37f
MD5 d75fe75e42ab835efe1a785fa7741e0b
SHA1 e7e0eb2e87b32986de27692fd02bd1dc875434fc
SHA512 d1bc17ea42343f612ad766173c895b379ec4d9ba6c016a57a5b23450902a829ed7d981957df5479993c2d07a972d4b0a72099151a3f988fba06e50c8801d42b9
MD5 SHA1 SHA512

Submit Download

tmp7BF7.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7BF7.tmp
Size 1KB
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d
MD5 SHA1 SHA512

Submit Download

memory/3456-139-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3508-133-0x0000000005970000-0x000000000597A000-memory.dmp

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memory/3508-135-0x000000000A8D0000-0x000000000A936000-memory.dmp

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memory/3508-134-0x000000000A730000-0x000000000A7CC000-memory.dmp

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memory/3508-130-0x0000000000EC0000-0x0000000000FB6000-memory.dmp

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memory/3508-132-0x00000000059E0000-0x0000000005A72000-memory.dmp

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memory/3508-131-0x0000000005EF0000-0x0000000006494000-memory.dmp

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