asyncrat | c306becc8baa90c1d305a2dd9dfb7649ecbc51f356553da16d4300ac728cea3c

General

Target

invoice.exe
Size

688KB
MD5

720b1afcfa57b140329465ecbcdec31e
SHA1

be0387473f50e017a13e3a097ac80cca00bd0350
SHA256

c306becc8baa90c1d305a2dd9dfb7649ecbc51f356553da16d4300ac728cea3c
SHA512

134750da6778a2ce634c579cd2b26344d9a164ec026e737f368dad5d5738472fb4afc10e8310e837c7a896dc94b15b7639ed92d5a71594ebe27376e4603475a3

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

exportmunic007.duckdns.org:6606

exportmunic007.duckdns.org:7707

exportmunic007.duckdns.org:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

anti_vm
false
bsod
false
delay
3
install
false
install_folder
%AppData%
pastebin_config
null

aes.plain

Signatures

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

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/436-127-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/436-225-0x00000000067A0000-0x00000000067C2000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

invoice.exe

description pid process target process

PID 2780 set thread context of 436 2780 invoice.exe invoice.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

Processes:

schtasks.exe

pid process

2840 schtasks.exe

description	pid	process	target process
PID 2780 set thread context of 436	2780	invoice.exe	invoice.exe

pid	process
2840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

invoice.exepowershell.exe

pid	process
2780	invoice.exe
2780	invoice.exe
2780	invoice.exe
2780	invoice.exe
2780	invoice.exe
2780	invoice.exe
2780	invoice.exe
1632	powershell.exe
1632	powershell.exe
1632	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

invoice.exepowershell.exeinvoice.exe

description pid process

Token: SeDebugPrivilege 2780 invoice.exe
Token: SeDebugPrivilege 1632 powershell.exe
Token: SeDebugPrivilege 436 invoice.exe

description	pid	process
Token: SeDebugPrivilege	2780	invoice.exe
Token: SeDebugPrivilege	1632	powershell.exe
Token: SeDebugPrivilege	436	invoice.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

invoice.exe

description	pid	process	target process
PID 2780 wrote to memory of 1632	2780	invoice.exe	powershell.exe
PID 2780 wrote to memory of 1632	2780	invoice.exe	powershell.exe
PID 2780 wrote to memory of 1632	2780	invoice.exe	powershell.exe
PID 2780 wrote to memory of 2840	2780	invoice.exe	schtasks.exe
PID 2780 wrote to memory of 2840	2780	invoice.exe	schtasks.exe
PID 2780 wrote to memory of 2840	2780	invoice.exe	schtasks.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe
PID 2780 wrote to memory of 436	2780	invoice.exe	invoice.exe

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KkFQRCLo.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1632

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KkFQRCLo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5A5C.tmp"
2⤵
- Creates scheduled task(s)
PID:2840

C:\Users\Admin\AppData\Local\Temp\invoice.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:436

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5A5C.tmp
MD5
fbdebd3ab5bc5d79cfc6604245179df6

SHA1
1de3923bc40853a3c090abc3e32badef6af6b1be

SHA256
4a3710b5f4c03b69f1a5775c7bdc19a282003cec5fb2199a17ff1b2919f5789a

SHA512
748f1390881fb03c95d1c46710b2b8163415550aa28ca9dce4a18676de5a8fc80aedbc305452566d1a9e12e8d1fcfcc624ad081646b865d61cc74efdaa15efa4

Download Submit
memory/436-226-0x00000000068A0000-0x00000000068BE000-memory.dmp

Filesize
120KB

Download
memory/436-225-0x00000000067A0000-0x00000000067C2000-memory.dmp

Filesize
136KB

Download
memory/436-139-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

Filesize
4KB

Download
memory/436-127-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1632-133-0x00000000079E0000-0x0000000007A46000-memory.dmp

Filesize
408KB

Download
memory/1632-135-0x0000000007320000-0x000000000733C000-memory.dmp

Filesize
112KB

Download
memory/1632-356-0x00000000095B0000-0x00000000095B8000-memory.dmp

Filesize
32KB

Download
memory/1632-351-0x0000000009660000-0x000000000967A000-memory.dmp

Filesize
104KB

Download
memory/1632-126-0x00000000046D0000-0x0000000004706000-memory.dmp

Filesize
216KB

Download
memory/1632-158-0x0000000006D73000-0x0000000006D74000-memory.dmp

Filesize
4KB

Download
memory/1632-129-0x0000000006D72000-0x0000000006D73000-memory.dmp

Filesize
4KB

Download
memory/1632-128-0x0000000006D70000-0x0000000006D71000-memory.dmp

Filesize
4KB

Download
memory/1632-130-0x00000000073B0000-0x00000000079D8000-memory.dmp

Filesize
6.2MB

Download
memory/1632-131-0x0000000007110000-0x0000000007132000-memory.dmp

Filesize
136KB

Download
memory/1632-132-0x0000000007230000-0x0000000007296000-memory.dmp

Filesize
408KB

Download
memory/1632-155-0x00000000095C0000-0x0000000009654000-memory.dmp

Filesize
592KB

Download
memory/1632-134-0x0000000007B50000-0x0000000007EA0000-memory.dmp

Filesize
3.3MB

Download
memory/1632-154-0x000000007ECF0000-0x000000007ECF1000-memory.dmp

Filesize
4KB

Download
memory/1632-136-0x0000000007360000-0x00000000073AB000-memory.dmp

Filesize
300KB

Download
memory/1632-137-0x00000000081E0000-0x0000000008256000-memory.dmp

Filesize
472KB

Download
memory/1632-153-0x00000000091C0000-0x0000000009265000-memory.dmp

Filesize
660KB

Download
memory/1632-147-0x0000000009080000-0x00000000090B3000-memory.dmp

Filesize
204KB

Download
memory/1632-148-0x0000000009060000-0x000000000907E000-memory.dmp

Filesize
120KB

Download
memory/2780-118-0x0000000004BD0000-0x00000000050CE000-memory.dmp

Filesize
5.0MB

Download
memory/2780-121-0x0000000000AE0000-0x0000000000B7C000-memory.dmp

Filesize
624KB

Download
memory/2780-115-0x0000000000200000-0x00000000002B2000-memory.dmp

Filesize
712KB

Download
memory/2780-119-0x0000000004AF0000-0x0000000004AFA000-memory.dmp

Filesize
40KB

Download
memory/2780-117-0x0000000004B10000-0x0000000004BA2000-memory.dmp

Filesize
584KB

Download
memory/2780-116-0x00000000050D0000-0x00000000055CE000-memory.dmp

Filesize
5.0MB

Download
memory/2780-120-0x0000000004DE0000-0x0000000004DEC000-memory.dmp

Filesize
48KB

Download
memory/2780-122-0x0000000000A40000-0x0000000000A7C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads