asyncrat | 92b0cc6184468867764c824f3086da312866b47b42642fd32166bfb7c87bdf7e

General

Target

New Order SSRNSSIQ102-2023.exe
Size

789KB
MD5

40e90e03d1c397d3fede4c0e9d3dd2e4
SHA1

2ca12b01d5a31dd2076a7a4c0ca70fb61451331c
SHA256

92b0cc6184468867764c824f3086da312866b47b42642fd32166bfb7c87bdf7e
SHA512

a4f9ffb09d118407d3d63a116f5edcdb2a2e21176eed80984a2b323f1360771b14c0816ac6c8a66650d584993f0206f7c9f82504a59fdf3e222d76e7a88c80f6
SSDEEP

12288:fCBNfZFHB3gwr+1yjPHx0HGkYDHjrTCq:abHBQyjPHxqYDH/eq

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

fresh03.ddns.net:45265

fresh03.ddns.net:34110

fresh03.ddns.net:2245

fresh01.ddns.net:45265

fresh01.ddns.net:34110

fresh01.ddns.net:2245

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
logs.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4476-144-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

New Order SSRNSSIQ102-2023.exelogs.exeNew Order SSRNSSIQ102-2023.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	New Order SSRNSSIQ102-2023.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	logs.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	New Order SSRNSSIQ102-2023.exe

Executes dropped EXE 2 IoCs

Processes:

logs.exelogs.exe

pid process

2804 logs.exe
3160 logs.exe

pid	process
2804	logs.exe
3160	logs.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

New Order SSRNSSIQ102-2023.exelogs.exe

description	pid	process	target process
PID 4220 set thread context of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 2804 set thread context of 3160	2804	logs.exe	logs.exe

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

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

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

2024 schtasks.exe
2240 schtasks.exe
2872 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3424 timeout.exe

pid	process
2024	schtasks.exe
2240	schtasks.exe
2872	schtasks.exe

pid	process
3424	timeout.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

New Order SSRNSSIQ102-2023.exelogs.exe

pid	process
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
4476	New Order SSRNSSIQ102-2023.exe
2804	logs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

New Order SSRNSSIQ102-2023.exeNew Order SSRNSSIQ102-2023.exelogs.exelogs.exe

description	pid	process
Token: SeDebugPrivilege	4220	New Order SSRNSSIQ102-2023.exe
Token: SeDebugPrivilege	4476	New Order SSRNSSIQ102-2023.exe
Token: SeDebugPrivilege	2804	logs.exe
Token: SeDebugPrivilege	3160	logs.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

New Order SSRNSSIQ102-2023.exeNew Order SSRNSSIQ102-2023.execmd.execmd.exelogs.exe

description	pid	process	target process
PID 4220 wrote to memory of 2024	4220	New Order SSRNSSIQ102-2023.exe	schtasks.exe
PID 4220 wrote to memory of 2024	4220	New Order SSRNSSIQ102-2023.exe	schtasks.exe
PID 4220 wrote to memory of 2024	4220	New Order SSRNSSIQ102-2023.exe	schtasks.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4220 wrote to memory of 4476	4220	New Order SSRNSSIQ102-2023.exe	New Order SSRNSSIQ102-2023.exe
PID 4476 wrote to memory of 2072	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 4476 wrote to memory of 2072	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 4476 wrote to memory of 2072	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 4476 wrote to memory of 5040	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 4476 wrote to memory of 5040	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 4476 wrote to memory of 5040	4476	New Order SSRNSSIQ102-2023.exe	cmd.exe
PID 5040 wrote to memory of 3424	5040	cmd.exe	timeout.exe
PID 5040 wrote to memory of 3424	5040	cmd.exe	timeout.exe
PID 5040 wrote to memory of 3424	5040	cmd.exe	timeout.exe
PID 2072 wrote to memory of 2240	2072	cmd.exe	schtasks.exe
PID 2072 wrote to memory of 2240	2072	cmd.exe	schtasks.exe
PID 2072 wrote to memory of 2240	2072	cmd.exe	schtasks.exe
PID 5040 wrote to memory of 2804	5040	cmd.exe	logs.exe
PID 5040 wrote to memory of 2804	5040	cmd.exe	logs.exe
PID 5040 wrote to memory of 2804	5040	cmd.exe	logs.exe
PID 2804 wrote to memory of 2872	2804	logs.exe	schtasks.exe
PID 2804 wrote to memory of 2872	2804	logs.exe	schtasks.exe
PID 2804 wrote to memory of 2872	2804	logs.exe	schtasks.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe
PID 2804 wrote to memory of 3160	2804	logs.exe	logs.exe

C:\Users\Admin\AppData\Local\Temp\New Order SSRNSSIQ102-2023.exe
"C:\Users\Admin\AppData\Local\Temp\New Order SSRNSSIQ102-2023.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4220

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZSapQxocQt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp26B2.tmp"
2⤵
- Creates scheduled task(s)
PID:2024

C:\Users\Admin\AppData\Local\Temp\New Order SSRNSSIQ102-2023.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "logs" /tr '"C:\Users\Admin\AppData\Roaming\logs.exe"'
4⤵
- Creates scheduled task(s)
PID:2240

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3CAB.tmp.bat""
3⤵
- Suspicious use of WriteProcessMemory
PID:5040

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- Delays execution with timeout.exe
PID:3424

C:\Users\Admin\AppData\Roaming\logs.exe
"C:\Users\Admin\AppData\Roaming\logs.exe"
4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2804

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZSapQxocQt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE2BF.tmp"
5⤵
- Creates scheduled task(s)
PID:2872

C:\Users\Admin\AppData\Roaming\logs.exe
"{path}"
5⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3160

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New Order SSRNSSIQ102-2023.exe.log
Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\logs.exe.log
Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp26B2.tmp
Filesize
1KB

MD5
513766ab120f484dfdd0a87b4695effb

SHA1
a8cd9132a1f64d3692b7e2046d8c20f0eb574f9a

SHA256
5f24273553e120873d4cd22bafd04a39b5715a522d257ba6c0befbf920887a2b

SHA512
8d11ec0aa3590d0a9f226fd943605ef9ee672558328455347843cad8552e0f7e344a80ea3d492d026f29d4e27695872ecf4802dc1f7b93b867e3378a22f74eaa

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3CAB.tmp.bat
Filesize
148B

MD5
dbeb567a4ff590da3c159d33d6191009

SHA1
e0ea5fe5dd4be3f47cabf7a8d61d436b0cebd2da

SHA256
6d68e2875122babaf3c3791e01eca598a4b59fb10ceac39c748db3eaf566a698

SHA512
7be031cb3c11fe55e73a85617d0a185fac59d33e111bf30793cc1d22d536cee8b2151eb973a076ee5093a39fe0940abd350e8b6e4ba593423aaff230add90c24

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE2BF.tmp
Filesize
1KB

MD5
513766ab120f484dfdd0a87b4695effb

SHA1
a8cd9132a1f64d3692b7e2046d8c20f0eb574f9a

SHA256
5f24273553e120873d4cd22bafd04a39b5715a522d257ba6c0befbf920887a2b

SHA512
8d11ec0aa3590d0a9f226fd943605ef9ee672558328455347843cad8552e0f7e344a80ea3d492d026f29d4e27695872ecf4802dc1f7b93b867e3378a22f74eaa

Download Submit
C:\Users\Admin\AppData\Roaming\logs.exe
Filesize
789KB

MD5
40e90e03d1c397d3fede4c0e9d3dd2e4

SHA1
2ca12b01d5a31dd2076a7a4c0ca70fb61451331c

SHA256
92b0cc6184468867764c824f3086da312866b47b42642fd32166bfb7c87bdf7e

SHA512
a4f9ffb09d118407d3d63a116f5edcdb2a2e21176eed80984a2b323f1360771b14c0816ac6c8a66650d584993f0206f7c9f82504a59fdf3e222d76e7a88c80f6

Download Submit
C:\Users\Admin\AppData\Roaming\logs.exe
Filesize
789KB

MD5
40e90e03d1c397d3fede4c0e9d3dd2e4

SHA1
2ca12b01d5a31dd2076a7a4c0ca70fb61451331c

SHA256
92b0cc6184468867764c824f3086da312866b47b42642fd32166bfb7c87bdf7e

SHA512
a4f9ffb09d118407d3d63a116f5edcdb2a2e21176eed80984a2b323f1360771b14c0816ac6c8a66650d584993f0206f7c9f82504a59fdf3e222d76e7a88c80f6

Download Submit
C:\Users\Admin\AppData\Roaming\logs.exe
Filesize
789KB

MD5
40e90e03d1c397d3fede4c0e9d3dd2e4

SHA1
2ca12b01d5a31dd2076a7a4c0ca70fb61451331c

SHA256
92b0cc6184468867764c824f3086da312866b47b42642fd32166bfb7c87bdf7e

SHA512
a4f9ffb09d118407d3d63a116f5edcdb2a2e21176eed80984a2b323f1360771b14c0816ac6c8a66650d584993f0206f7c9f82504a59fdf3e222d76e7a88c80f6

Download Submit
memory/2804-155-0x0000000004C40000-0x0000000004C50000-memory.dmp

Filesize
64KB

Download
memory/2804-156-0x0000000004C40000-0x0000000004C50000-memory.dmp

Filesize
64KB

Download
memory/3160-164-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/3160-163-0x0000000005200000-0x0000000005210000-memory.dmp

Filesize
64KB

Download
memory/4220-133-0x0000000000710000-0x00000000007DC000-memory.dmp

Filesize
816KB

Download
memory/4220-138-0x0000000005530000-0x0000000005586000-memory.dmp

Filesize
344KB

Download
memory/4220-137-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/4220-139-0x0000000005520000-0x0000000005530000-memory.dmp

Filesize
64KB

Download
memory/4220-136-0x0000000005290000-0x0000000005322000-memory.dmp

Filesize
584KB

Download
memory/4220-135-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/4220-134-0x00000000051F0000-0x000000000528C000-memory.dmp

Filesize
624KB

Download
memory/4220-140-0x0000000005520000-0x0000000005530000-memory.dmp

Filesize
64KB

Download
memory/4476-144-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4476-147-0x0000000005510000-0x0000000005520000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads