nanocore | ca3e131ecb0831f2bb629aea2398aa5a2a04a64f752429e69052b3f8d6eef3fb

General

Target

DOC_03948885783893849293749320039854308489430928347594387484930948.exe
Size

482KB
MD5

fba99a303725b793630211678e8c539c
SHA1

151fcde564166f5b3823e02ecf18f03a1039046b
SHA256

08d6b4e4eb0b60fcd3eb8461fdc566b05b57bbe93a1fb494d7bfd46e0561902b
SHA512

a6e6de36d3814de17d37eddc1ed0cc198a9532ca00fdbfbb66e6989ab6a0ba5dddb70ea20612e17f1c19e51df1a85d088b118f38b467b266cc0c6df43e9e2f8a
SSDEEP

12288:CstO2acTaulCSRO6EzPrdta84FzOZ7Ygx4:CsXLTESRWoiagx4

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

prime1.zapto.org:8885

Mutex

fffba83e-6ee4-4015-9987-2c220e55ca1c

Attributes

activate_away_mode
true
backup_connection_host
prime1.zapto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-16T12:30:42.941919436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
8885
default_group
billion$
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
fffba83e-6ee4-4015-9987-2c220e55ca1c
mutex_timeout
5015
prevent_system_sleep
true
primary_connection_host
prime1.zapto.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
4997
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5009
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe"	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	pid	process	target process
PID 2324 set thread context of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Drops file in Program Files directory 2 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

4584 schtasks.exe
4268 schtasks.exe
4352 schtasks.exe

pid	process
4584	schtasks.exe
4268	schtasks.exe
4352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exeDOC_03948885783893849293749320039854308489430928347594387484930948.exe

pid	process
2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exe

pid process

4908 DOC_03948885783893849293749320039854308489430928347594387484930948.exe

pid	process
4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exeDOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	pid	process
Token: SeDebugPrivilege	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
Token: SeDebugPrivilege	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DOC_03948885783893849293749320039854308489430928347594387484930948.exeDOC_03948885783893849293749320039854308489430928347594387484930948.exe

description	pid	process	target process
PID 2324 wrote to memory of 4352	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 2324 wrote to memory of 4352	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 2324 wrote to memory of 4352	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 2324 wrote to memory of 4908	2324	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	DOC_03948885783893849293749320039854308489430928347594387484930948.exe
PID 4908 wrote to memory of 4584	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 4908 wrote to memory of 4584	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 4908 wrote to memory of 4584	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 4908 wrote to memory of 4268	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 4908 wrote to memory of 4268	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe
PID 4908 wrote to memory of 4268	4908	DOC_03948885783893849293749320039854308489430928347594387484930948.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\DOC_03948885783893849293749320039854308489430928347594387484930948.exe
"C:\Users\Admin\AppData\Local\Temp\DOC_03948885783893849293749320039854308489430928347594387484930948.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dlBkmtCuqK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1CB.tmp"
2⤵
- Creates scheduled task(s)
PID:4352

C:\Users\Admin\AppData\Local\Temp\DOC_03948885783893849293749320039854308489430928347594387484930948.exe
"{path}"
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:4908

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB40E.tmp"
3⤵
- Creates scheduled task(s)
PID:4584

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB42E.tmp"
3⤵
- Creates scheduled task(s)
PID:4268

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB1CB.tmp
Filesize
1KB

MD5
0f6f20b6f6b27991f876631a5bdd2b9d

SHA1
826c8531630c418cc3a454bb6d61215062a5f8d8

SHA256
847d7ee6583cd8abbae046c28bd0f52ddd37788155226e352116a30613c7bd62

SHA512
abd152e6a65b9202217dcaf5360952455996bcb8c63a34a6c8faaef4db1fbc4e286e36320161f6ac54f42e03fe328194052c4ed3c9063190b1bb5025d14502a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB40E.tmp
Filesize
1KB

MD5
4ee3367eff3b4507d07e7b5c0d4eadd6

SHA1
14a093f6fd1c9afa060f0dac44a6644926134ceb

SHA256
e1cd1cc98effee897e8f9faede59d24e1154cd9062eec440292727637bf020f8

SHA512
c36267b14e3ec0f176f6e203f7db4914e3ec850f0173dba4283b5c657ea827a19f4feab7854f06b86369b021684516073fa0e483cf457a73247bded2bb18e3dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB42E.tmp
Filesize
1KB

MD5
a246b3561d823177f3586e629f144233

SHA1
0f05d12e55a1d2e5e6a4f307c193882fba093315

SHA256
6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52

SHA512
4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d

Download Submit
memory/2324-10-0x0000000007100000-0x000000000719C000-memory.dmp

Filesize
624KB

Download
memory/2324-2-0x0000000005DB0000-0x0000000006354000-memory.dmp

Filesize
5.6MB

Download
memory/2324-5-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/2324-6-0x0000000005A50000-0x0000000005A58000-memory.dmp

Filesize
32KB

Download
memory/2324-7-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/2324-8-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/2324-9-0x0000000007020000-0x0000000007060000-memory.dmp

Filesize
256KB

Download
memory/2324-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/2324-3-0x0000000005710000-0x00000000057A2000-memory.dmp

Filesize
584KB

Download
memory/2324-1-0x0000000000E00000-0x0000000000E7E000-memory.dmp

Filesize
504KB

Download
memory/2324-4-0x00000000057D0000-0x00000000057DA000-memory.dmp

Filesize
40KB

Download
memory/2324-17-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/4908-18-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/4908-16-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/4908-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4908-26-0x0000000005A00000-0x0000000005A0A000-memory.dmp

Filesize
40KB

Download
memory/4908-27-0x0000000005BE0000-0x0000000005BFE000-memory.dmp

Filesize
120KB

Download
memory/4908-28-0x0000000005D90000-0x0000000005D9A000-memory.dmp

Filesize
40KB

Download
memory/4908-29-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/4908-30-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads