asyncrat | b440f7efd5865cb247ba6bdbb9a64480aa41269b7da563f41449fba038787d49

General

Target

97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe
Size

65KB
MD5

3712477f2075218e74bdf987b23b578d
SHA1

95d8ef64bfc80a2cda65a4992a63083988207f67
SHA256

97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990
SHA512

1a767e93ca25f0117864a5c3e1eced57a8142d5fc3d300f64f2460aac3e13ae826fc06aba195f75184651f06a76ad8f2c7adeb35ff297dc7a2ce55b9503e2e8f
SSDEEP

1536:dumO1TQq726uw/O2CenkR7bExca0tICKfX5WxHd5w:dumaTQq725w/bCenkVbExzCKfX8xHjw

Score

10^/10

asyncrat hei rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Hei

Mutex

r6rQyqJg4Z3n

Attributes

c2_url_file
http://d.sso.mom:18086/SSIP.html
delay
3
install
true
install_file
Micrcsoft.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000900000001447e-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2596	Micrcsoft.exe

Loads dropped DLL 1 IoCs

pid	Process
2888	cmd.exe

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

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/Job

T1053

pid	Process
2552	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2572	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe
1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe
Token: SeDebugPrivilege	2596	Micrcsoft.exe
Token: SeDebugPrivilege	2596	Micrcsoft.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2960	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	28
PID 1720 wrote to memory of 2960	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	28
PID 1720 wrote to memory of 2960	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	28
PID 1720 wrote to memory of 2960	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	28
PID 1720 wrote to memory of 2888	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	30
PID 1720 wrote to memory of 2888	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	30
PID 1720 wrote to memory of 2888	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	30
PID 1720 wrote to memory of 2888	1720	97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe	30
PID 2960 wrote to memory of 2552	2960	cmd.exe	32
PID 2960 wrote to memory of 2552	2960	cmd.exe	32
PID 2960 wrote to memory of 2552	2960	cmd.exe	32
PID 2960 wrote to memory of 2552	2960	cmd.exe	32
PID 2888 wrote to memory of 2572	2888	cmd.exe	33
PID 2888 wrote to memory of 2572	2888	cmd.exe	33
PID 2888 wrote to memory of 2572	2888	cmd.exe	33
PID 2888 wrote to memory of 2572	2888	cmd.exe	33
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34
PID 2888 wrote to memory of 2596	2888	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe
"C:\Users\Admin\AppData\Local\Temp\97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Micrcsoft" /tr '"C:\Users\Admin\AppData\Roaming\Micrcsoft.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Micrcsoft" /tr '"C:\Users\Admin\AppData\Roaming\Micrcsoft.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2552
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1796.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2572
- - C:\Users\Admin\AppData\Roaming\Micrcsoft.exe
    "C:\Users\Admin\AppData\Roaming\Micrcsoft.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

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\tmp1796.tmp.bat

Filesize
153B

MD5
f9d201636f289efb671c30bede3d9999

SHA1
c8d03c839f255b58699334ae4d75ce4e89bc3450

SHA256
b94e08f89dc1ab4f8d6885d759e8d6558b756b28a04e44466c139ca94f86f651

SHA512
26db6839dc9c6cb868f29a3d27de8ef149fe64f9ce6d8d86fe27b9d5e8f97462e2bb969991f6ad8059b72be146ce170d58ab814b6bccaec8d3d81251af980cc6

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

Filesize
65KB

MD5
3712477f2075218e74bdf987b23b578d

SHA1
95d8ef64bfc80a2cda65a4992a63083988207f67

SHA256
97f70b6807192398746dd93449c2fdf4353533313c021aca4d0aa5e74f82d990

SHA512
1a767e93ca25f0117864a5c3e1eced57a8142d5fc3d300f64f2460aac3e13ae826fc06aba195f75184651f06a76ad8f2c7adeb35ff297dc7a2ce55b9503e2e8f

Download Submit
memory/1720-0-0x0000000000F60000-0x0000000000F76000-memory.dmp

Filesize
88KB

Download
memory/1720-1-0x0000000074B70000-0x000000007525E000-memory.dmp

Filesize
6.9MB

Download
memory/1720-2-0x0000000004A30000-0x0000000004A70000-memory.dmp

Filesize
256KB

Download
memory/1720-12-0x0000000074B70000-0x000000007525E000-memory.dmp

Filesize
6.9MB

Download
memory/2596-16-0x0000000000B20000-0x0000000000B36000-memory.dmp

Filesize
88KB

Download
memory/2596-17-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2596-18-0x0000000004D10000-0x0000000004D50000-memory.dmp

Filesize
256KB

Download
memory/2596-19-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2596-20-0x0000000004D10000-0x0000000004D50000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads