asyncrat | 93df1c272022c2a5bc8bcb8247ffc932837ea4de9f6044da8953a3a1078ab018

General

Target

273f2c55c1982fc3ec6450639609f38a.exe
Size

486KB
MD5

273f2c55c1982fc3ec6450639609f38a
SHA1

02db2875babca34c81f4979134cba8422c7ef262
SHA256

93df1c272022c2a5bc8bcb8247ffc932837ea4de9f6044da8953a3a1078ab018
SHA512

a65de5f5bf0f47c399108f6b59405327be7a1037a2b6597a5eef4b13c3483347885a86a6662770bd34a8aea61445ac29cab93e330739453922dcbacf7b743e38

Score

10^/10

asyncrat default rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

vivald21.hopto.org:9954

63.141.237.188:9954

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/404-142-0x0000000000400000-0x0000000000412000-memory.dmp	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:

273f2c55c1982fc3ec6450639609f38a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	273f2c55c1982fc3ec6450639609f38a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

273f2c55c1982fc3ec6450639609f38a.exe

description pid process target process

PID 4704 set thread context of 404 4704 273f2c55c1982fc3ec6450639609f38a.exe 273f2c55c1982fc3ec6450639609f38a.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

Processes:

schtasks.exe

pid process

4832 schtasks.exe

description	pid	process	target process
PID 4704 set thread context of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe

pid	process
4832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

273f2c55c1982fc3ec6450639609f38a.exepowershell.exe

pid	process
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
4704	273f2c55c1982fc3ec6450639609f38a.exe
1744	powershell.exe
1744	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

273f2c55c1982fc3ec6450639609f38a.exepowershell.exe273f2c55c1982fc3ec6450639609f38a.exe

description	pid	process
Token: SeDebugPrivilege	4704	273f2c55c1982fc3ec6450639609f38a.exe
Token: SeDebugPrivilege	1744	powershell.exe
Token: SeDebugPrivilege	404	273f2c55c1982fc3ec6450639609f38a.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

273f2c55c1982fc3ec6450639609f38a.exe

description	pid	process	target process
PID 4704 wrote to memory of 1744	4704	273f2c55c1982fc3ec6450639609f38a.exe	powershell.exe
PID 4704 wrote to memory of 1744	4704	273f2c55c1982fc3ec6450639609f38a.exe	powershell.exe
PID 4704 wrote to memory of 1744	4704	273f2c55c1982fc3ec6450639609f38a.exe	powershell.exe
PID 4704 wrote to memory of 4832	4704	273f2c55c1982fc3ec6450639609f38a.exe	schtasks.exe
PID 4704 wrote to memory of 4832	4704	273f2c55c1982fc3ec6450639609f38a.exe	schtasks.exe
PID 4704 wrote to memory of 4832	4704	273f2c55c1982fc3ec6450639609f38a.exe	schtasks.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe
PID 4704 wrote to memory of 404	4704	273f2c55c1982fc3ec6450639609f38a.exe	273f2c55c1982fc3ec6450639609f38a.exe

C:\Users\Admin\AppData\Local\Temp\273f2c55c1982fc3ec6450639609f38a.exe
"C:\Users\Admin\AppData\Local\Temp\273f2c55c1982fc3ec6450639609f38a.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4704

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mqJGmcQXQtGbX.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1744

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mqJGmcQXQtGbX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB2B.tmp"
2⤵
- Creates scheduled task(s)
PID:4832

C:\Users\Admin\AppData\Local\Temp\273f2c55c1982fc3ec6450639609f38a.exe
"C:\Users\Admin\AppData\Local\Temp\273f2c55c1982fc3ec6450639609f38a.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:404

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\273f2c55c1982fc3ec6450639609f38a.exe.log
Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEB2B.tmp
Filesize
1KB

MD5
393efdea5a2c553ae26b10f4331dad59

SHA1
0437bd9fccd96e1e2f58abf6cdbe73579e06b306

SHA256
88a9094e1f991ad09a7ac8971fe5d5940a8fbd6cd1bc764305ed7db00d3b6edb

SHA512
09b801269ab6f47137d242f2fdd9dda7324a2c32c7d2de69c0b3ed0794c09a9501c62d0ea890580ee1c91ad963127090d3eb0613e9250c720bb12dad8cbe3dbd

Download Submit
memory/404-142-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/404-141-0x0000000000000000-mapping.dmp

Download
memory/1744-136-0x0000000000000000-mapping.dmp

Download
memory/1744-145-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/1744-156-0x0000000007DB0000-0x0000000007DB8000-memory.dmp

Filesize
32KB

Download
memory/1744-155-0x0000000007DD0000-0x0000000007DEA000-memory.dmp

Filesize
104KB

Download
memory/1744-138-0x0000000002DE0000-0x0000000002E16000-memory.dmp

Filesize
216KB

Download
memory/1744-154-0x0000000007CC0000-0x0000000007CCE000-memory.dmp

Filesize
56KB

Download
memory/1744-140-0x00000000058B0000-0x0000000005ED8000-memory.dmp

Filesize
6.2MB

Download
memory/1744-153-0x0000000007D10000-0x0000000007DA6000-memory.dmp

Filesize
600KB

Download
memory/1744-152-0x0000000007B00000-0x0000000007B0A000-memory.dmp

Filesize
40KB

Download
memory/1744-151-0x0000000007A90000-0x0000000007AAA000-memory.dmp

Filesize
104KB

Download
memory/1744-144-0x0000000005650000-0x0000000005672000-memory.dmp

Filesize
136KB

Download
memory/1744-150-0x00000000080E0000-0x000000000875A000-memory.dmp

Filesize
6.5MB

Download
memory/1744-146-0x0000000006780000-0x000000000679E000-memory.dmp

Filesize
120KB

Download
memory/1744-147-0x0000000006D70000-0x0000000006DA2000-memory.dmp

Filesize
200KB

Download
memory/1744-148-0x0000000071540000-0x000000007158C000-memory.dmp

Filesize
304KB

Download
memory/1744-149-0x0000000006D20000-0x0000000006D3E000-memory.dmp

Filesize
120KB

Download
memory/4704-135-0x0000000000A20000-0x0000000000A86000-memory.dmp

Filesize
408KB

Download
memory/4704-131-0x0000000005070000-0x0000000005614000-memory.dmp

Filesize
5.6MB

Download
memory/4704-132-0x0000000004B60000-0x0000000004BF2000-memory.dmp

Filesize
584KB

Download
memory/4704-133-0x0000000004AE0000-0x0000000004AEA000-memory.dmp

Filesize
40KB

Download
memory/4704-134-0x0000000008A10000-0x0000000008AAC000-memory.dmp

Filesize
624KB

Download
memory/4704-130-0x00000000000C0000-0x0000000000140000-memory.dmp

Filesize
512KB

Download
memory/4832-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads