asyncrat | accc29c7af47c1a42e7646a93b347f73fbb14a7a20177f3aad80ab26f4c819f4

General

Target

tmp.exe
Size

124KB
MD5

5284960dae2439c297f945715ae10c36
SHA1

b4be5b314fe573fb14d6074ba795ddd8fb78d944
SHA256

accc29c7af47c1a42e7646a93b347f73fbb14a7a20177f3aad80ab26f4c819f4
SHA512

a6259cc4b121d4b918490de6f6dcbaa9740f67174dadeef0965b8ba53fd196d2332a0b5d4fcf00d2da62b1e7ef095fb5b2d5dc57aecad6a3f2681475177dd3e6
SSDEEP

3072:CuwGToVS2YFWt4bQa4tqsU1FJ+yC3pwRb6JPqB604Hgy7hRCd39vie:Cuw/fVt4bjCVJyB60OgyLC7vr

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

kadumello.ddns.net:1194

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
wermgr64.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 5 IoCs

rat

resource	yara_rule
behavioral1/memory/1288-54-0x0000000000A80000-0x0000000000AA4000-memory.dmp	asyncrat
behavioral1/files/0x0008000000005c51-61.dat	asyncrat
behavioral1/files/0x0008000000005c51-62.dat	asyncrat
behavioral1/files/0x0008000000005c51-64.dat	asyncrat
behavioral1/memory/944-65-0x0000000000AE0000-0x0000000000B04000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

pid	Process
944	wermgr64.exe

Loads dropped DLL 1 IoCs

pid	Process
1284	cmd.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1752	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
568	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1288	tmp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	tmp.exe
Token: SeDebugPrivilege	944	wermgr64.exe
Token: SeDebugPrivilege	944	wermgr64.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 580	1288	tmp.exe	28
PID 1288 wrote to memory of 580	1288	tmp.exe	28
PID 1288 wrote to memory of 580	1288	tmp.exe	28
PID 1288 wrote to memory of 580	1288	tmp.exe	28
PID 1288 wrote to memory of 1284	1288	tmp.exe	30
PID 1288 wrote to memory of 1284	1288	tmp.exe	30
PID 1288 wrote to memory of 1284	1288	tmp.exe	30
PID 1288 wrote to memory of 1284	1288	tmp.exe	30
PID 580 wrote to memory of 1752	580	cmd.exe	32
PID 580 wrote to memory of 1752	580	cmd.exe	32
PID 580 wrote to memory of 1752	580	cmd.exe	32
PID 580 wrote to memory of 1752	580	cmd.exe	32
PID 1284 wrote to memory of 568	1284	cmd.exe	33
PID 1284 wrote to memory of 568	1284	cmd.exe	33
PID 1284 wrote to memory of 568	1284	cmd.exe	33
PID 1284 wrote to memory of 568	1284	cmd.exe	33
PID 1284 wrote to memory of 944	1284	cmd.exe	34
PID 1284 wrote to memory of 944	1284	cmd.exe	34
PID 1284 wrote to memory of 944	1284	cmd.exe	34
PID 1284 wrote to memory of 944	1284	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "wermgr64" /tr '"C:\Users\Admin\AppData\Roaming\wermgr64.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:580
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "wermgr64" /tr '"C:\Users\Admin\AppData\Roaming\wermgr64.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:1752
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp3CF2.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:568
- - C:\Users\Admin\AppData\Roaming\wermgr64.exe
    "C:\Users\Admin\AppData\Roaming\wermgr64.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3CF2.tmp.bat

Filesize
152B

MD5
1f2bb8e6a0aff0941eb345a4c9f9ef9a

SHA1
461763d518b2f08a9358d9e4503abbcb9723fe63

SHA256
61969dc02e9993762c26c7817526d15d1ac1feff492a33fcbcf7c227525a5a34

SHA512
d15eedd319e6a5398d2f02188080a4b858473fc30d9bf070a99c8b9ee2b08805f88b44c73e31c4d49a0c5d612bd00d92b972249649d4dea6f580b3283a165ee1

Download Submit
C:\Users\Admin\AppData\Roaming\wermgr64.exe

Filesize
124KB

MD5
5284960dae2439c297f945715ae10c36

SHA1
b4be5b314fe573fb14d6074ba795ddd8fb78d944

SHA256
accc29c7af47c1a42e7646a93b347f73fbb14a7a20177f3aad80ab26f4c819f4

SHA512
a6259cc4b121d4b918490de6f6dcbaa9740f67174dadeef0965b8ba53fd196d2332a0b5d4fcf00d2da62b1e7ef095fb5b2d5dc57aecad6a3f2681475177dd3e6

Download Submit
C:\Users\Admin\AppData\Roaming\wermgr64.exe

Filesize
124KB

MD5
5284960dae2439c297f945715ae10c36

SHA1
b4be5b314fe573fb14d6074ba795ddd8fb78d944

SHA256
accc29c7af47c1a42e7646a93b347f73fbb14a7a20177f3aad80ab26f4c819f4

SHA512
a6259cc4b121d4b918490de6f6dcbaa9740f67174dadeef0965b8ba53fd196d2332a0b5d4fcf00d2da62b1e7ef095fb5b2d5dc57aecad6a3f2681475177dd3e6

Download Submit
\Users\Admin\AppData\Roaming\wermgr64.exe

Filesize
124KB

MD5
5284960dae2439c297f945715ae10c36

SHA1
b4be5b314fe573fb14d6074ba795ddd8fb78d944

SHA256
accc29c7af47c1a42e7646a93b347f73fbb14a7a20177f3aad80ab26f4c819f4

SHA512
a6259cc4b121d4b918490de6f6dcbaa9740f67174dadeef0965b8ba53fd196d2332a0b5d4fcf00d2da62b1e7ef095fb5b2d5dc57aecad6a3f2681475177dd3e6

Download Submit
memory/568-60-0x0000000000000000-mapping.dmp

Download
memory/580-56-0x0000000000000000-mapping.dmp

Download
memory/944-63-0x0000000000000000-mapping.dmp

Download
memory/944-65-0x0000000000AE0000-0x0000000000B04000-memory.dmp

Filesize
144KB

Download
memory/1284-57-0x0000000000000000-mapping.dmp

Download
memory/1288-54-0x0000000000A80000-0x0000000000AA4000-memory.dmp

Filesize
144KB

Download
memory/1288-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1752-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads