asyncrat | 26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2

General

Target

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
Size

196KB
MD5

035de7c27c7be916b5f3320e895c61ac
SHA1

84159edae207759230fdc0ffebc46a54acf73e98
SHA256

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2
SHA512

aea1b617fd2441eb73ada7fcd2b75255bb6b764837d6adf962adbe460a5060a19a3d0c98ce819b2711720bf9dc9c4c9cd67d88f81727d5ecec64be3bd40a3560
SSDEEP

6144:bzWJFc3d3B6Nt53jrSrKZLehQS/xvlZ6/:663B6Nt53n6Q4Vg

Score

10^/10

asyncrat rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
Executes dropped EXE 1 IoCs

Processes:

OBS.exe

pid process

316 OBS.exe

pid	process
316	OBS.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

Processes:

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.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

1288 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4648 timeout.exe

pid	process
1288	schtasks.exe

pid	process
4648	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe

pid	process
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exeOBS.exe

description pid process

Token: SeDebugPrivilege 704 26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
Token: SeDebugPrivilege 316 OBS.exe

description	pid	process
Token: SeDebugPrivilege	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
Token: SeDebugPrivilege	316	OBS.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.execmd.execmd.exe

description	pid	process	target process
PID 704 wrote to memory of 4968	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 704 wrote to memory of 4968	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 704 wrote to memory of 4968	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 704 wrote to memory of 4644	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 704 wrote to memory of 4644	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 704 wrote to memory of 4644	704	26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe	cmd.exe
PID 4968 wrote to memory of 1288	4968	cmd.exe	schtasks.exe
PID 4968 wrote to memory of 1288	4968	cmd.exe	schtasks.exe
PID 4968 wrote to memory of 1288	4968	cmd.exe	schtasks.exe
PID 4644 wrote to memory of 4648	4644	cmd.exe	timeout.exe
PID 4644 wrote to memory of 4648	4644	cmd.exe	timeout.exe
PID 4644 wrote to memory of 4648	4644	cmd.exe	timeout.exe
PID 4644 wrote to memory of 316	4644	cmd.exe	OBS.exe
PID 4644 wrote to memory of 316	4644	cmd.exe	OBS.exe
PID 4644 wrote to memory of 316	4644	cmd.exe	OBS.exe

C:\Users\Admin\AppData\Local\Temp\26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe
"C:\Users\Admin\AppData\Local\Temp\26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:704

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "OBS" /tr '"C:\Users\Admin\AppData\Roaming\OBS.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4968

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "OBS" /tr '"C:\Users\Admin\AppData\Roaming\OBS.exe"'
3⤵
- Creates scheduled task(s)
PID:1288

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1CA0.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:4644

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4648

C:\Users\Admin\AppData\Roaming\OBS.exe
"C:\Users\Admin\AppData\Roaming\OBS.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:316

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\Temp\tmp1CA0.tmp.bat
Filesize
147B

MD5
e09bb3b268576aae84f10a8f73beaf4d

SHA1
86a30812894e10a822cbf9b2842c5c22668b7a0b

SHA256
c3e04c51512a5da1cc3d439a466eff65a1739b28ead860aafb7a43a19e0bd4c2

SHA512
e4ef613692f1217477acd7d0a522e81c93e9da8b18ab73f1ccd459dd2802423c3ea4e86a8372248e8a2cd01e19973a60ffb3dd9881c71d729fbfc825111e8ec1

Download Submit
C:\Users\Admin\AppData\Roaming\OBS.exe
Filesize
196KB

MD5
035de7c27c7be916b5f3320e895c61ac

SHA1
84159edae207759230fdc0ffebc46a54acf73e98

SHA256
26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2

SHA512
aea1b617fd2441eb73ada7fcd2b75255bb6b764837d6adf962adbe460a5060a19a3d0c98ce819b2711720bf9dc9c4c9cd67d88f81727d5ecec64be3bd40a3560

Download Submit
C:\Users\Admin\AppData\Roaming\OBS.exe
Filesize
196KB

MD5
035de7c27c7be916b5f3320e895c61ac

SHA1
84159edae207759230fdc0ffebc46a54acf73e98

SHA256
26e657df0e518cad1107765e55ffa3af3dd71a3c70b07ce69c31f7ebaaa145b2

SHA512
aea1b617fd2441eb73ada7fcd2b75255bb6b764837d6adf962adbe460a5060a19a3d0c98ce819b2711720bf9dc9c4c9cd67d88f81727d5ecec64be3bd40a3560

Download Submit
memory/316-139-0x0000000000000000-mapping.dmp

Download
memory/704-132-0x0000000000600000-0x0000000000608000-memory.dmp

Filesize
32KB

Download
memory/704-133-0x0000000004F60000-0x0000000004FFC000-memory.dmp

Filesize
624KB

Download
memory/1288-136-0x0000000000000000-mapping.dmp

Download
memory/4644-135-0x0000000000000000-mapping.dmp

Download
memory/4648-138-0x0000000000000000-mapping.dmp

Download
memory/4968-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads