asyncrat | d7bfea7d65bd99597f52daaf771da4b372cd9426a6b082d3917f4b90a5294411

General

Target

77D62A0F656D79E0FF5BB2F70E4E852C.exe
Size

487KB
MD5

77d62a0f656d79e0ff5bb2f70e4e852c
SHA1

c85bde83456a07b3797aa6f290f71c8ff715a598
SHA256

d7bfea7d65bd99597f52daaf771da4b372cd9426a6b082d3917f4b90a5294411
SHA512

b503be45cc8d524d9f929aae53bc0a46e991c8db94503da64d3dfc1b1eaf7378c068da0156436fb865ad36016e957c7416a2e87bee3d1bb644e5c481a40bd645
SSDEEP

12288:ctaDPw1Qk89TmyVryOUfR3rA9WgCqo3yrWE3I7Oqa8bfWT:c0Lw9gTFVryb3rkVCV+WE3FZ8bfW

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:1960

cuit.ydns.eu:1960

Mutex

Ym9duGjX2Yzz

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
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

77D62A0F656D79E0FF5BB2F70E4E852C.exe

description	pid	Process	procid_target
PID 1964 set thread context of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32

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

Processes:

77D62A0F656D79E0FF5BB2F70E4E852C.exe77D62A0F656D79E0FF5BB2F70E4E852C.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77D62A0F656D79E0FF5BB2F70E4E852C.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	77D62A0F656D79E0FF5BB2F70E4E852C.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

77D62A0F656D79E0FF5BB2F70E4E852C.exe

pid	Process
1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe
1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe
1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe
1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe
1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

77D62A0F656D79E0FF5BB2F70E4E852C.exe77D62A0F656D79E0FF5BB2F70E4E852C.exe

description	pid	Process
Token: SeDebugPrivilege	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe
Token: SeDebugPrivilege	2760	77D62A0F656D79E0FF5BB2F70E4E852C.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

77D62A0F656D79E0FF5BB2F70E4E852C.exe

description	pid	Process	procid_target
PID 1964 wrote to memory of 2756	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	31
PID 1964 wrote to memory of 2756	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	31
PID 1964 wrote to memory of 2756	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	31
PID 1964 wrote to memory of 2756	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	31
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32
PID 1964 wrote to memory of 2760	1964	77D62A0F656D79E0FF5BB2F70E4E852C.exe	32

C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe
"C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe
  "C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe"
  2⤵
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe
  "C:\Users\Admin\AppData\Local\Temp\77D62A0F656D79E0FF5BB2F70E4E852C.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabDFB7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1964-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1964-1-0x0000000000AB0000-0x0000000000B30000-memory.dmp

Filesize
512KB

Download
memory/1964-2-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-3-0x0000000000600000-0x000000000061E000-memory.dmp

Filesize
120KB

Download
memory/1964-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/1964-5-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/1964-6-0x0000000000370000-0x00000000003C4000-memory.dmp

Filesize
336KB

Download
memory/1964-20-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-19-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-21-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-38-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-39-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads