asyncrat | 4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead

General

Target

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
Size

12.0MB
MD5

c8857b41ea3e02902a5a41de9237c0bd
SHA1

ad6e59e0331f0f5676f1a113e33fe63afe81de57
SHA256

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead
SHA512

6dbb9548caf65a5d4c16d77e713a2f4a9983cbad93c896443eb4a351052eae0efc4483103af040a45ede8395c1603a1a33cd74295a4e962eabc907cc3ed959ca
SSDEEP

12288:m86gzba4ce2D5BAwo0NLtE6T11wm9ZLXs/0bu529CnY:NEcQLtE6Tpns/0yz

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

mehdoganmin70.duckdns.org:6606

mehdoganmin70.duckdns.org:7707

mehdoganmin70.duckdns.org:8808

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1944-142-0x0000000000400000-0x0000000000412000-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:

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

description	pid	process	target process
PID 2340 set thread context of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.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

5100 schtasks.exe

pid	process
5100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

pid	process
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

description pid process

Token: SeDebugPrivilege 2340 4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

description	pid	process
Token: SeDebugPrivilege	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

description	pid	process	target process
PID 2340 wrote to memory of 5100	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	schtasks.exe
PID 2340 wrote to memory of 5100	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	schtasks.exe
PID 2340 wrote to memory of 5100	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	schtasks.exe
PID 2340 wrote to memory of 2524	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 2524	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 2524	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
PID 2340 wrote to memory of 1944	2340	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe	4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe

C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
"C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2340

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\INaoFrcvAkB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF53D.tmp"
2⤵
- Creates scheduled task(s)
PID:5100

C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
"C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe"
2⤵
PID:2524

C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe
"C:\Users\Admin\AppData\Local\Temp\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe"
2⤵
PID:1944

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\4bfbaa3171e1551dca35344279912a70ffa7ea53e4d63d7d00402d1ef377dead.exe.log
Filesize
1KB

MD5
e7473990edf901c1e1bef76f6095f55b

SHA1
f03b370492bbcc5280982886f9688eb8da762c8f

SHA256
5fea4747d97c0dbc097902818ae754eaca7214913a52d3bb1372a6274ce0292a

SHA512
ab93f14371dfae858bbad7d98c95055186f60b30937057f71b3d1ad17ab08b5ab7820a33bc5b3e74c485ec38e6b7a1772077add591d313175c10b4ff94bcb689

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF53D.tmp
Filesize
1KB

MD5
72a70d7f38856ffcc9985d18a390e9cb

SHA1
9bf4e6cd3d69524886aafc870d461c1344dd503a

SHA256
7be9093de7f99c20d8e0a2e3f9e4087b6ac741cddaf0966d21b5afc7657bfd38

SHA512
0b434be51d36f5ebdc2c0aa7f83363665aa05b1fad796f85cae1ae77689e18bc4e380004badc3e7d1eab0ca35c310ae2e1e32277c94495d6191aa2027fac05b2

Download Submit
memory/1944-141-0x0000000000000000-mapping.dmp

Download
memory/1944-142-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2340-132-0x0000000000EA0000-0x0000000000F42000-memory.dmp

Filesize
648KB

Download
memory/2340-133-0x0000000007FB0000-0x000000000804C000-memory.dmp

Filesize
624KB

Download
memory/2340-134-0x0000000008700000-0x0000000008CA4000-memory.dmp

Filesize
5.6MB

Download
memory/2340-135-0x0000000008200000-0x0000000008292000-memory.dmp

Filesize
584KB

Download
memory/2340-136-0x00000000081E0000-0x00000000081EA000-memory.dmp

Filesize
40KB

Download
memory/2340-137-0x0000000008400000-0x0000000008456000-memory.dmp

Filesize
344KB

Download
memory/2524-140-0x0000000000000000-mapping.dmp

Download
memory/5100-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads