asyncrat | aa0399675c53f77a7996102b5301ea24814642e9eee30648c9ac75b3b1052235

General

Target

FedEx Invoice 202116435.exe
Size

766KB
MD5

fd3988d887f5e982384dca104ea49001
SHA1

d3ad5fa2af44707e5e27b76fdbebf5a9ae28b457
SHA256

aa0399675c53f77a7996102b5301ea24814642e9eee30648c9ac75b3b1052235
SHA512

868c4795ae2fea9aaa98ad069c97564bc051ee73e728bdd61ba7f250b8b9d9b41013b4446a61a364c71f6f4105f25790938a1cbeaba64850159f69ad4836811c

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

79.134.225.45:2233

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
yCFT3D6MMz3qsbxnPTBTTSsUCB2B6gqZ
anti_detection
false
autorun
false
bdos
false
delay
Default
host
79.134.225.45
hwid
5
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
2233
version
0.5.7B

aes.plain

Signatures

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

Async RAT payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1876-9-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1876-10-0x000000000040C70E-mapping.dmp	asyncrat
behavioral1/memory/1876-11-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1876-12-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

FedEx Invoice 202116435.exe

description pid process target process

PID 792 set thread context of 1876 792 FedEx Invoice 202116435.exe FedEx Invoice 202116435.exe
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

Processes:

schtasks.exe

pid process

1012 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

FedEx Invoice 202116435.exe

pid process

792 FedEx Invoice 202116435.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

FedEx Invoice 202116435.exe

description pid process

Token: SeDebugPrivilege 792 FedEx Invoice 202116435.exe

description	pid	process	target process
PID 792 set thread context of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe

pid	process
1012	schtasks.exe

pid	process
792	FedEx Invoice 202116435.exe

description	pid	process
Token: SeDebugPrivilege	792	FedEx Invoice 202116435.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

FedEx Invoice 202116435.exe

description	pid	process	target process
PID 792 wrote to memory of 1012	792	FedEx Invoice 202116435.exe	schtasks.exe
PID 792 wrote to memory of 1012	792	FedEx Invoice 202116435.exe	schtasks.exe
PID 792 wrote to memory of 1012	792	FedEx Invoice 202116435.exe	schtasks.exe
PID 792 wrote to memory of 1012	792	FedEx Invoice 202116435.exe	schtasks.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe
PID 792 wrote to memory of 1876	792	FedEx Invoice 202116435.exe	FedEx Invoice 202116435.exe

C:\Users\Admin\AppData\Local\Temp\FedEx Invoice 202116435.exe
"C:\Users\Admin\AppData\Local\Temp\FedEx Invoice 202116435.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pVJgNVIylS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp49DC.tmp"
2⤵
- Creates scheduled task(s)
PID:1012

C:\Users\Admin\AppData\Local\Temp\FedEx Invoice 202116435.exe
"C:\Users\Admin\AppData\Local\Temp\FedEx Invoice 202116435.exe"
2⤵
PID:1876

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp49DC.tmp
MD5
0cf8cd0185e353050e2b3a48b53876f7

SHA1
8e4d6e1411849b50090f400b29affda3cecf714a

SHA256
d1c48e991988987fa7eb3047f325f314c2725450312053bc41ff976ec45a97d0

SHA512
c31698bc930dc7640fabf9f6ad050ce5bcfede0f760382ec6574859faed5848e9626bf040e6a6ef98ae3a4d948a41b8f61c86aa3c518e1ac9c6478869a52bd10

Download Submit
memory/792-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/792-3-0x0000000001060000-0x0000000001061000-memory.dmp

Filesize
4KB

Download
memory/792-5-0x00000000003D0000-0x00000000003E3000-memory.dmp

Filesize
76KB

Download
memory/792-6-0x0000000000CD0000-0x0000000000D18000-memory.dmp

Filesize
288KB

Download
memory/1012-7-0x0000000000000000-mapping.dmp

Download
memory/1876-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1876-10-0x000000000040C70E-mapping.dmp

Download
memory/1876-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1876-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1876-13-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads