metastealer | 11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec

General

Target

11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
Size

708KB
MD5

848a0266b194123408dd4429ef761db0
SHA1

95348194c757655c1d7832db285de8d3d3baf8f5
SHA256

11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec
SHA512

49240e1684c2bf7eaf5e869b95cf878693811148b37aa73db6cfcfb46331dc3c2bccc5455f99d180964202571f6e31a918ffc17e6458aede1db2c04607249440

Score

10^/10

metastealer nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

farah99.zapto.org:19720

Mutex

6d50c134-6325-499c-b5ec-dbc7a37a8117

Attributes

activate_away_mode
true
backup_connection_host
farah99.zapto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-08-20T23:36:09.518759436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
19720
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
6d50c134-6325-499c-b5ec-dbc7a37a8117
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
farah99.zapto.org
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

Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer
NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

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"	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.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	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.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 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4600	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
2212	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
2212	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
2212	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2212	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
Token: SeDebugPrivilege	2212	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 4600	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	81
PID 1836 wrote to memory of 4600	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	81
PID 1836 wrote to memory of 4600	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	81
PID 1836 wrote to memory of 1116	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	83
PID 1836 wrote to memory of 1116	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	83
PID 1836 wrote to memory of 1116	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	83
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84
PID 1836 wrote to memory of 2212	1836	11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe	84

C:\Users\Admin\AppData\Local\Temp\11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
"C:\Users\Admin\AppData\Local\Temp\11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XGcETK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA98.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4600
- C:\Users\Admin\AppData\Local\Temp\11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe
  "{path}"
  2⤵
  PID:1116
- C:\Users\Admin\AppData\Local\Temp\11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.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
  PID:2212

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

5

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\11e036c1794cd85102d2db5dc7cd5e1440d266ccd6f09fb541661c63ddbebeec.exe.log

Filesize
1KB

MD5
531595e2b5f12461e210c410faf46d37

SHA1
4c163e51d2a43c5514f4064dd3bc9e9470ed752c

SHA256
40b7c802bfe6623c91a471cb1525738c9bc6e38125d3ea4c73b26f468ca83b51

SHA512
ac815c417c53b6a04415f022655ee4fe014f9f80c540b0b595e3dfc4e744458c2eaee5d535a14bc488a27afb5b53e5289eca23434fd1ba10ae231ae6678d1e6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAA98.tmp

Filesize
1KB

MD5
2aaad82e0cfd3b29beaff08b0931ac0f

SHA1
1f610cddbcf509397aeb9c22c2ea9ff81cd30650

SHA256
715315047bb1765ed352649b1743893029459bc9f07d10086ad790033afc196e

SHA512
a332e48f594c3ca9cf08bdf11a2698f62e82d63a155da39125f3005d955630b81f5ab5996a312ea253a656351f07d19d3b70a241cec74960110b7501dccc465c

Download Submit
memory/1836-133-0x0000000007E80000-0x0000000007E8A000-memory.dmp

Filesize
40KB

Download
memory/1836-134-0x000000000BC00000-0x000000000C12C000-memory.dmp

Filesize
5.2MB

Download
memory/1836-135-0x000000000C270000-0x000000000C30C000-memory.dmp

Filesize
624KB

Download
memory/1836-136-0x0000000001330000-0x0000000001396000-memory.dmp

Filesize
408KB

Download
memory/1836-130-0x0000000000BC0000-0x0000000000C78000-memory.dmp

Filesize
736KB

Download
memory/1836-132-0x0000000007EC0000-0x0000000007F52000-memory.dmp

Filesize
584KB

Download
memory/1836-131-0x00000000082D0000-0x0000000008874000-memory.dmp

Filesize
5.6MB

Download
memory/2212-141-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads