asyncrat | dea0baa27b4aec785704292890f0c33261fbf51e1cd857c39f563e36251b6430

General

Target

SKM-2000012.exe
Size

16KB
MD5

0320bf3e8314fa2f5f4d78c8a69d5aef
SHA1

3e158ac1149277ac5afc3937644fc3e9b48a2c26
SHA256

dea0baa27b4aec785704292890f0c33261fbf51e1cd857c39f563e36251b6430
SHA512

80e3dc604cdc5963bc9ef6f9b1ec2571fee076ba8726854dc1b1ce2fd4c968497a828b433dbc5ef200cd334db7580ce0899c95e057c172fdcb6e77fd4b25fc15
SSDEEP

192:BINVpJODMlmDJLMl3F8EfqD1Y9HJ2HoaNj4s3n61B2KWW40W6:qLODZLMl3epkHAHvNj4ZaW40W

Score

10^/10

asyncrat collection persistence rat spyware stealer

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

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:

SKM-2000012.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	SKM-2000012.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs

collection

Email Collection

T1114

Processes:

SKM-2000012.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	SKM-2000012.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SKM-2000012.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ftzuby = "\"C:\\Users\\Admin\\AppData\\Roaming\\Tzmopjp\\Ftzuby.exe\""	SKM-2000012.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

57 freegeoip.app
56 freegeoip.app

flow	ioc
57	freegeoip.app
56	freegeoip.app

Suspicious use of SetThreadContext 2 IoCs

Processes:

SKM-2000012.exe

description	pid	process	target process
PID 2300 set thread context of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 set thread context of 1976	2300	SKM-2000012.exe	SKM-2000012.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1780 powershell.exe
1780 powershell.exe

pid	process
1780	powershell.exe
1780	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

SKM-2000012.exepowershell.exeSKM-2000012.exeSKM-2000012.exe

description	pid	process
Token: SeDebugPrivilege	2300	SKM-2000012.exe
Token: SeDebugPrivilege	1780	powershell.exe
Token: SeDebugPrivilege	1280	SKM-2000012.exe
Token: SeDebugPrivilege	1976	SKM-2000012.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

SKM-2000012.exe

description	pid	process	target process
PID 2300 wrote to memory of 1780	2300	SKM-2000012.exe	powershell.exe
PID 2300 wrote to memory of 1780	2300	SKM-2000012.exe	powershell.exe
PID 2300 wrote to memory of 1780	2300	SKM-2000012.exe	powershell.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1280	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe
PID 2300 wrote to memory of 1976	2300	SKM-2000012.exe	SKM-2000012.exe

outlook_office_path 1 IoCs

Processes:

SKM-2000012.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe

outlook_win_path 1 IoCs

Processes:

SKM-2000012.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SKM-2000012.exe

C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe
"C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1780

C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe
C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe Cj4IARIuMTgwMDUwMjY2MzpBQUhTdVBPVFU5LXRGS2NnOGp3Q21jM0gwNVprQ3pULUZ6QRoKMTg4ODU2Mjg4NA==
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1280

C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe
C:\Users\Admin\AppData\Local\Temp\SKM-2000012.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SKM-2000012.exe.log
Filesize
1KB

MD5
e87e48b105757e1c7563d1c719059733

SHA1
28a3f2b2e0672da2b531f4757d2b20b53032dafc

SHA256
0aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461

SHA512
bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968

Download Submit
memory/1280-147-0x0000000007110000-0x00000000076B4000-memory.dmp

Filesize
5.6MB

Download
memory/1280-143-0x0000000000400000-0x00000000004F2000-memory.dmp

Filesize
968KB

Download
memory/1280-142-0x0000000000000000-mapping.dmp

Download
memory/1280-149-0x0000000006BC0000-0x0000000006BFC000-memory.dmp

Filesize
240KB

Download
memory/1280-148-0x0000000006B60000-0x0000000006B72000-memory.dmp

Filesize
72KB

Download
memory/1280-146-0x0000000006AC0000-0x0000000006B52000-memory.dmp

Filesize
584KB

Download
memory/1780-138-0x0000000005CA0000-0x0000000005D06000-memory.dmp

Filesize
408KB

Download
memory/1780-140-0x0000000007BA0000-0x000000000821A000-memory.dmp

Filesize
6.5MB

Download
memory/1780-135-0x0000000002D70000-0x0000000002DA6000-memory.dmp

Filesize
216KB

Download
memory/1780-139-0x0000000006320000-0x000000000633E000-memory.dmp

Filesize
120KB

Download
memory/1780-134-0x0000000000000000-mapping.dmp

Download
memory/1780-137-0x0000000005C30000-0x0000000005C96000-memory.dmp

Filesize
408KB

Download
memory/1780-136-0x0000000005490000-0x0000000005AB8000-memory.dmp

Filesize
6.2MB

Download
memory/1780-141-0x0000000006820000-0x000000000683A000-memory.dmp

Filesize
104KB

Download
memory/1976-151-0x0000000005C50000-0x0000000005CEC000-memory.dmp

Filesize
624KB

Download
memory/1976-144-0x0000000000000000-mapping.dmp

Download
memory/1976-145-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2300-132-0x0000000000100000-0x000000000010A000-memory.dmp

Filesize
40KB

Download
memory/2300-133-0x0000000005620000-0x0000000005642000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads