asyncrat | c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2

General

Target

c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Size

930KB
MD5

de04168171981a90f56a126ec055ba19
SHA1

766704b6e12a7db436663eb7e287160e736979b7
SHA256

c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2
SHA512

784f4b6954a56e2f09f3b3f1d29ae6d1ad14c814f3aad6391972654c398c68bcf7745902c368cbfcb8778f16cb33aa62210c937d48e6d8876d567fcd2a657013
SSDEEP

12288:lS6vgPZN3V4smWPc7H3/BPyf13SFyIz8VOHa8ASSMCFFi0mWWaos2Z8kM+:06vqtcDZPyf13WyODSMyc08aoz8kM

Score

10^/10

asyncrat discovery rat

Malware Config

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

description	pid	Process	procid_target
PID 584 set thread context of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.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	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
Token: SeDebugPrivilege	2172	MSBuild.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31
PID 584 wrote to memory of 2172	584	c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe	31

C:\Users\Admin\AppData\Local\Temp\c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe
"C:\Users\Admin\AppData\Local\Temp\c891493c98f76e82e18c0e57e51b96fe8da86b086d67632e2495a793d3298bf2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2172

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab8642.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/584-0-0x0000000001110000-0x00000000011FE000-memory.dmp

Filesize
952KB

Download
memory/584-1-0x0000000000510000-0x0000000000554000-memory.dmp

Filesize
272KB

Download
memory/584-2-0x0000000000830000-0x000000000084A000-memory.dmp

Filesize
104KB

Download
memory/584-3-0x00000000008A0000-0x00000000008A6000-memory.dmp

Filesize
24KB

Download
memory/2172-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-12-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2172-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2172-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

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