asyncrat | 639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1

General

Target

639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
Size

418KB
MD5

e9f97ff6d802b18ef23f3fda43197d4d
SHA1

f73e795660f1dd38807fd4b3551ea004255bccbe
SHA256

639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1
SHA512

1340529c69aec37bb92a4511b88a53e5a56102f3c6edcfd839f3350b3a473f9d1128afb8b177770f93fb627096bda81e81ce67c0def7e98faf1d67222fb14d58
SSDEEP

6144:u5SLGG3tvLiX4aK8y0n80RTJyMPdFa5gJE3tl4Hwkt3l:u5SLhpiX4P8yqlR9yMPdEjKQkV

Score

10^/10

asyncrat default discovery rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

Default

C2

cloudali.duckdns.org:6606

cloudali.duckdns.org:7707

cloudali.duckdns.org:8808

cloudali.duckdns.org:777

Mutex

gebna_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
Token: SeDebugPrivilege	2640	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2620	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	30
PID 2852 wrote to memory of 2620	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	30
PID 2852 wrote to memory of 2620	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	30
PID 2852 wrote to memory of 2620	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	30
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31
PID 2852 wrote to memory of 2640	2852	639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe	31

C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
"C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
  "C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe"
  2⤵
  PID:2620
- C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe
  "C:\Users\Admin\AppData\Local\Temp\639a014ae556d3940e2dab686d310c36e80302367bbd06c70d4304d2d9f13ea1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab5D2F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2640-8-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-3-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2640-38-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2640-37-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2640-20-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2640-18-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-19-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2852-0-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/2852-1-0x0000000000BD0000-0x0000000000C3E000-memory.dmp

Filesize
440KB

Download
memory/2852-2-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/2852-17-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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