asyncrat | e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673

General

Target

e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe
Size

63KB
MD5

75e5c5859589d7221d6997aa87e84d2c
SHA1

288d747cdddb07eb42da0601987fbefef67a211b
SHA256

e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673
SHA512

f00832876c69e2fe52389ceeedd3e8039b276b21e4e6cfefacf6556398772d6209a4a535f3d12319a7dd010c65edddbdf46597f1affed0a6547f2ada272c7532
SSDEEP

1536:lQXDLK88Wi6RHWtUbCh9MkKxbYHuodpqKmY7:l02mi6R2tUbC4ylGz

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

35.159.113.6:1337

Attributes

delay
1
install
true
install_file
DefenderControlWeb.exe
install_folder
%Temp%

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/0x0007000000012117-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2552	DefenderControlWeb.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
2748	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
2780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe
2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe
2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe
Token: SeDebugPrivilege	2552	DefenderControlWeb.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 2844	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	30
PID 2620 wrote to memory of 2844	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	30
PID 2620 wrote to memory of 2844	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	30
PID 2620 wrote to memory of 2800	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	32
PID 2620 wrote to memory of 2800	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	32
PID 2620 wrote to memory of 2800	2620	e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe	32
PID 2844 wrote to memory of 2780	2844	cmd.exe	34
PID 2844 wrote to memory of 2780	2844	cmd.exe	34
PID 2844 wrote to memory of 2780	2844	cmd.exe	34
PID 2800 wrote to memory of 2748	2800	cmd.exe	35
PID 2800 wrote to memory of 2748	2800	cmd.exe	35
PID 2800 wrote to memory of 2748	2800	cmd.exe	35
PID 2800 wrote to memory of 2552	2800	cmd.exe	36
PID 2800 wrote to memory of 2552	2800	cmd.exe	36
PID 2800 wrote to memory of 2552	2800	cmd.exe	36

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\e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe
"C:\Users\Admin\AppData\Local\Temp\e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "DefenderControlWeb" /tr '"C:\Users\Admin\AppData\Local\Temp\DefenderControlWeb.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "DefenderControlWeb" /tr '"C:\Users\Admin\AppData\Local\Temp\DefenderControlWeb.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2780
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5541.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2748
- - C:\Users\Admin\AppData\Local\Temp\DefenderControlWeb.exe
    "C:\Users\Admin\AppData\Local\Temp\DefenderControlWeb.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2552

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\DefenderControlWeb.exe

Filesize
63KB

MD5
75e5c5859589d7221d6997aa87e84d2c

SHA1
288d747cdddb07eb42da0601987fbefef67a211b

SHA256
e2c831fb09b6585f06e3ac919ca50d9aacae0891be133354982c997410fb8673

SHA512
f00832876c69e2fe52389ceeedd3e8039b276b21e4e6cfefacf6556398772d6209a4a535f3d12319a7dd010c65edddbdf46597f1affed0a6547f2ada272c7532

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5541.tmp.bat

Filesize
165B

MD5
5c3c8fa55edc1dd9a5db882077511b92

SHA1
c65ec4bd1f98f72e04dcdbba4ffae806f6fc6668

SHA256
fa067a00f3765859893770dee2912e51fb246307e9cf1ec8f3793ca8bfabf357

SHA512
7470983afe8cc009a89126ebf1133893ecfce1bbf545dee85ad9a9388bcb76f3d78448d8610b43858d1127f60da42bc23f6a35e97ddb017252c5d6da33e22b0c

Download Submit
memory/2552-17-0x0000000000330000-0x0000000000346000-memory.dmp

Filesize
88KB

Download
memory/2620-0-0x000007FEF6473000-0x000007FEF6474000-memory.dmp

Filesize
4KB

Download
memory/2620-1-0x0000000001080000-0x0000000001096000-memory.dmp

Filesize
88KB

Download
memory/2620-2-0x000007FEF6470000-0x000007FEF6E5C000-memory.dmp

Filesize
9.9MB

Download
memory/2620-3-0x000007FEF6470000-0x000007FEF6E5C000-memory.dmp

Filesize
9.9MB

Download
memory/2620-12-0x000007FEF6470000-0x000007FEF6E5C000-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