metastealer | 8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070

General

Target

8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
Size

540KB
MD5

994fdf5ef490b99c578b9ad39e87e801
SHA1

29f799b2c4fe6916d06c358c196fa3ec21814d9b
SHA256

8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070
SHA512

2638af26313a2e143d84a67e824c8c0e069a38b3774e9d7d430820b97dcff272000ab10b57f000bb8d0a6e161277b300072641c244be77843ebfab94a3f148fa

Score

10^/10

metastealer nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

innocentbooii.hopto.org:55420

194.5.97.82:55420

Mutex

cd80cecf-f131-4e4d-a876-4072cc542585

Attributes

activate_away_mode
false
backup_connection_host
194.5.97.82
backup_dns_server
buffer_size
65538
build_time
2020-07-03T14:09:41.890100036Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
55420
default_group
Clickbyfire
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
cd80cecf-f131-4e4d-a876-4072cc542585
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
innocentbooii.hopto.org
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

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

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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.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\ISS Monitor = "C:\\Program Files (x86)\\ISS Monitor\\issmon.exe"	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.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	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1492 set thread context of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ISS Monitor\issmon.exe	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
File opened for modification	C:\Program Files (x86)\ISS Monitor\issmon.exe	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.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

pid	Process
4456	schtasks.exe
3248	schtasks.exe
224	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
Token: SeDebugPrivilege	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
Token: SeDebugPrivilege	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 4456	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	90
PID 1492 wrote to memory of 4456	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	90
PID 1492 wrote to memory of 4456	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	90
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 1492 wrote to memory of 2632	1492	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	93
PID 2632 wrote to memory of 3248	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	94
PID 2632 wrote to memory of 3248	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	94
PID 2632 wrote to memory of 3248	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	94
PID 2632 wrote to memory of 224	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	96
PID 2632 wrote to memory of 224	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	96
PID 2632 wrote to memory of 224	2632	8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe	96

C:\Users\Admin\AppData\Local\Temp\8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe
"C:\Users\Admin\AppData\Local\Temp\8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FoxiZsVHXln" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB72.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4456
- C:\Users\Admin\AppData\Local\Temp\8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.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:2632
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1A76.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3248
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1BA0.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:224

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

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8dc7e5c5cb1b7ddcd5d8afeb0e5eb422ac9e0bd09fc4a7ba80bae52967f8a070.exe.log

Filesize
1KB

MD5
6f8f3a9a57cb30e686d3355e656031e0

SHA1
acccd6befb1a2f40e662280bc5182e086a0d079b

SHA256
283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea

SHA512
8f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1A76.tmp

Filesize
1KB

MD5
e3f1e1fb6193112569ef51fd0243af29

SHA1
f830a0aa0e6f16e6a72f65a8ca6b39b4ed57da69

SHA256
1689a4004c6205e20d19228ae33bd323d52c673973666729306927ec3592fd33

SHA512
be68432bb9b2fb63059d5d6990558b44525e9801a95023e11db51f26587023d0999ed65b347a890b9e1a80d73425d303f373ff779457f1e66a3dfe42d5126d73

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1BA0.tmp

Filesize
1KB

MD5
97ca1345e92062cecc79ad320a0e89b1

SHA1
9e696a4df86c685befe01d00a16611331ed7e763

SHA256
937a440251a10c5a8921104975e5b7f166a34be5e48aa5c4ad344f8beadd1ad2

SHA512
b7cce6586e4db4e387343c01977b0768fca8c4842098f1caf7e4240fa89273279b1ade5ed25aaf108102dd06c0ee945a24cf4786eb24de34520b4c11c2e82214

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB72.tmp

Filesize
1KB

MD5
e690f28f1194b0888871491a59bc79a6

SHA1
6952a57fe4fcdd404fd7d3676e045c4862b63bf8

SHA256
06a550d21449e2f1a02c8f857f3cd42ad68366612fd4f931d1752e2a2c3cea3d

SHA512
e781222a334362e4292548ac755a3f2df6fec3af62cbda5c080291f1f75da477d82237425906a9ebf85081ade7acb98a938003187db02c362d1f9971c8c6210e

Download Submit
memory/1492-134-0x0000000008C50000-0x000000000917C000-memory.dmp

Filesize
5.2MB

Download
memory/1492-135-0x00000000092F0000-0x000000000938C000-memory.dmp

Filesize
624KB

Download
memory/1492-130-0x0000000000D00000-0x0000000000D8E000-memory.dmp

Filesize
568KB

Download
memory/1492-133-0x0000000007C10000-0x0000000007C1A000-memory.dmp

Filesize
40KB

Download
memory/1492-132-0x0000000007C60000-0x0000000007CF2000-memory.dmp

Filesize
584KB

Download
memory/1492-131-0x0000000008170000-0x0000000008714000-memory.dmp

Filesize
5.6MB

Download
memory/2632-139-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2632-145-0x0000000006F80000-0x0000000006FE6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads