asyncrat | 3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82

General

Target

3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
Size

63KB
MD5

a587ed228c608a71f06edbc8e8e087e9
SHA1

e9e4b0d19b8139a6b8bb63ddee6422ba63648824
SHA256

3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82
SHA512

b76ff1c062d4e1fd9b217661204b82a3898bfbe9ea2b4287e8e5aa28c1ca19f913f1d2c390d5dff1051dae9e6b2f5bf2c2a7886e1f112f00c25619c11c16529e
SSDEEP

768:cILZTnPRs78HIC8A+XnJkUeXIkhuuAi1+T4bSBGHmDbDCph0oiHJ7oHQSu8dpqKX:pRRQZbgpkYUbshIHJoXu8dpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

147.185.221.24:18545

Attributes

delay
1
install
true
install_file
xrat.exe
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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000a00000001225c-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2600	xrat.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2776	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2860	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
Token: SeDebugPrivilege	2600	xrat.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2752	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	31
PID 2784 wrote to memory of 2752	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	31
PID 2784 wrote to memory of 2752	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	31
PID 2752 wrote to memory of 2860	2752	cmd.exe	34
PID 2752 wrote to memory of 2860	2752	cmd.exe	34
PID 2752 wrote to memory of 2860	2752	cmd.exe	34
PID 2784 wrote to memory of 2968	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	33
PID 2784 wrote to memory of 2968	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	33
PID 2784 wrote to memory of 2968	2784	3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe	33
PID 2968 wrote to memory of 2776	2968	cmd.exe	36
PID 2968 wrote to memory of 2776	2968	cmd.exe	36
PID 2968 wrote to memory of 2776	2968	cmd.exe	36
PID 2968 wrote to memory of 2600	2968	cmd.exe	37
PID 2968 wrote to memory of 2600	2968	cmd.exe	37
PID 2968 wrote to memory of 2600	2968	cmd.exe	37

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe
"C:\Users\Admin\AppData\Local\Temp\3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xrat" /tr '"C:\Users\Admin\AppData\Roaming\xrat.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "xrat" /tr '"C:\Users\Admin\AppData\Roaming\xrat.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2860
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7F3E.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2776
- - C:\Users\Admin\AppData\Roaming\xrat.exe
    "C:\Users\Admin\AppData\Roaming\xrat.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7F3E.tmp.bat

Filesize
148B

MD5
7c592e14a718d4a8b2e69c9ba2aa3941

SHA1
f122921ec78a3d42c3120487075bd19b0707ccd1

SHA256
4dbd446682e7fde907bdbb487b9cd13ca4f3c969549f54a9a49e56f4de1ae363

SHA512
47ca3a81ca370ac9e67a907299897aa26dec9e24e199c65e00d683c93c4bae770b10805a36d2e578dbd4bb2c600d9eab584907f0076bce6ebd7fb419190ca806

Download Submit
C:\Users\Admin\AppData\Roaming\xrat.exe

Filesize
63KB

MD5
a587ed228c608a71f06edbc8e8e087e9

SHA1
e9e4b0d19b8139a6b8bb63ddee6422ba63648824

SHA256
3a4dc784a93e7ee7cf96790ba40b4304384c21d3811c2960d2886e823b22eb82

SHA512
b76ff1c062d4e1fd9b217661204b82a3898bfbe9ea2b4287e8e5aa28c1ca19f913f1d2c390d5dff1051dae9e6b2f5bf2c2a7886e1f112f00c25619c11c16529e

Download Submit
memory/2600-17-0x0000000001230000-0x0000000001246000-memory.dmp

Filesize
88KB

Download
memory/2784-0-0x000007FEF57F3000-0x000007FEF57F4000-memory.dmp

Filesize
4KB

Download
memory/2784-1-0x0000000000900000-0x0000000000916000-memory.dmp

Filesize
88KB

Download
memory/2784-2-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Filesize
9.9MB

Download
memory/2784-3-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Filesize
9.9MB

Download
memory/2784-13-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads