nanocore | 5767c03c99b81a66dfc473594b0a85db93e8ad82aa35a6811b37d040487eb413

General

Target

v????_?? _PO_55956999.exe
Size

536KB
MD5

a43763b970a869ff32d39dd605f827a4
SHA1

17580d9a776422d289a79c8232768e0979aaf0ed
SHA256

986d7ca543c0f353e3ddc5bffd84904eea3c589ade8d3bb43ceda3d8e29704e2
SHA512

e9ac46ef5d41e541b5a991660987192467f04fd89e0933812c3245d401cd388a04ab55a6eca99f48f98e8c8599a407f13a77f769cf5f65ed78208734517f44f8

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mrjeffy.duckdns.org:37273

Mutex

a627bb45-268b-48f0-a01b-3ad2255c3288

Attributes

activate_away_mode
true
backup_connection_host
mrjeffy.duckdns.org
backup_dns_server
buffer_size
65535
build_time
2020-03-28T16:27:39.949749836Z
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
37273
default_group
JUNE$$$$$$$$$$$$$$$
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
a627bb45-268b-48f0-a01b-3ad2255c3288
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
mrjeffy.duckdns.org
primary_dns_server
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

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:

v_______ _PO_55956999.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	v_______ _PO_55956999.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

v_______ _PO_55956999.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Service = "C:\\Program Files (x86)\\WPA Service\\wpasv.exe"	v_______ _PO_55956999.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

v_______ _PO_55956999.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA v_______ _PO_55956999.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

v_______ _PO_55956999.exe

description pid process target process

PID 3148 set thread context of 1140 3148 v_______ _PO_55956999.exe v_______ _PO_55956999.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	v_______ _PO_55956999.exe

description	pid	process	target process
PID 3148 set thread context of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe

Drops file in Program Files directory 2 IoCs

Processes:

v_______ _PO_55956999.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Service\wpasv.exe	v_______ _PO_55956999.exe
File opened for modification	C:\Program Files (x86)\WPA Service\wpasv.exe	v_______ _PO_55956999.exe

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

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
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

4676 schtasks.exe
816 schtasks.exe
1760 schtasks.exe

pid	process
4676	schtasks.exe
816	schtasks.exe
1760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

v_______ _PO_55956999.exev_______ _PO_55956999.exe

pid	process
3148	v_______ _PO_55956999.exe
3148	v_______ _PO_55956999.exe
3148	v_______ _PO_55956999.exe
3148	v_______ _PO_55956999.exe
1140	v_______ _PO_55956999.exe
1140	v_______ _PO_55956999.exe
1140	v_______ _PO_55956999.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

v_______ _PO_55956999.exe

pid process

1140 v_______ _PO_55956999.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

v_______ _PO_55956999.exev_______ _PO_55956999.exe

description pid process

Token: SeDebugPrivilege 3148 v_______ _PO_55956999.exe
Token: SeDebugPrivilege 1140 v_______ _PO_55956999.exe

pid	process
1140	v_______ _PO_55956999.exe

description	pid	process
Token: SeDebugPrivilege	3148	v_______ _PO_55956999.exe
Token: SeDebugPrivilege	1140	v_______ _PO_55956999.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

v_______ _PO_55956999.exev_______ _PO_55956999.exe

description	pid	process	target process
PID 3148 wrote to memory of 4676	3148	v_______ _PO_55956999.exe	schtasks.exe
PID 3148 wrote to memory of 4676	3148	v_______ _PO_55956999.exe	schtasks.exe
PID 3148 wrote to memory of 4676	3148	v_______ _PO_55956999.exe	schtasks.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 3148 wrote to memory of 1140	3148	v_______ _PO_55956999.exe	v_______ _PO_55956999.exe
PID 1140 wrote to memory of 816	1140	v_______ _PO_55956999.exe	schtasks.exe
PID 1140 wrote to memory of 816	1140	v_______ _PO_55956999.exe	schtasks.exe
PID 1140 wrote to memory of 816	1140	v_______ _PO_55956999.exe	schtasks.exe
PID 1140 wrote to memory of 1760	1140	v_______ _PO_55956999.exe	schtasks.exe
PID 1140 wrote to memory of 1760	1140	v_______ _PO_55956999.exe	schtasks.exe
PID 1140 wrote to memory of 1760	1140	v_______ _PO_55956999.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\v_______ _PO_55956999.exe
"C:\Users\Admin\AppData\Local\Temp\v_______ _PO_55956999.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3148

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jjvqcFhsrOdixV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD49.tmp"
2⤵
- Creates scheduled task(s)
PID:4676

C:\Users\Admin\AppData\Local\Temp\v_______ _PO_55956999.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:1140

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1A59.tmp"
3⤵
- Creates scheduled task(s)
PID:816

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1AD7.tmp"
3⤵
- Creates scheduled task(s)
PID:1760

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\v_______ _PO_55956999.exe.log
Filesize
496B

MD5
cb76b18ebed3a9f05a14aed43d35fba6

SHA1
836a4b4e351846fca08b84149cb734cb59b8c0d6

SHA256
8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

SHA512
7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1A59.tmp
Filesize
1KB

MD5
222423f9a566d9abbc3f9f2c53523d6c

SHA1
522f2ef0eabc05d2f8b45f9989b3028fe97166af

SHA256
e5e1e47fa0c1a1454f88d00dd71259999aca1ce870fb68f58c0b3581a6cd246f

SHA512
451f9db0ee736fa2e19586fa64b5fdf0e2a54c694a2c30adba60c9673d29e812dfbd5a09b113e4e1e957778618957b08854bb8911859bdae04affc5b41fd61fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1AD7.tmp
Filesize
1KB

MD5
21de6c3a6440d917bdbb4b491191d9b2

SHA1
c63c300affe7147910dc4544d2d5f3029bf321a6

SHA256
23af17733a3882cdd82a5bbc321d896b2430dc1bb4b4ac034d129cde5027afc4

SHA512
dcd1c464ed36593b990e072940ab415804ef8076743015fff4939211e30e436beb7ce6af3072769abe0214f737cedb210d2b45e6e90da20dac54c3945b11575f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD49.tmp
Filesize
1KB

MD5
57811b86b6010f9fa5a8b61825191887

SHA1
c13124d58f5fe6ee00f57ed737872a4d81a91b1e

SHA256
1d36264d3ee5ade2eb85177d9ac4a9565435f0288faa30467a2d0c212dd03335

SHA512
23b88a144199ca3598c4d56e1dcf92df5c820b863d399b6006b1999f019a8b57cb8ee208f038fd4ee310c541e3d0f4c0d73cefe03f0bc7ed367de77e19339d07

Download Submit
memory/816-140-0x0000000000000000-mapping.dmp

Download
memory/1140-136-0x0000000000000000-mapping.dmp

Download
memory/1140-137-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1140-139-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1760-142-0x0000000000000000-mapping.dmp

Download
memory/3148-133-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4676-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads