asyncrat | c2ec0a1d7984be0fb24004369eca5bed7882ce5fe9e3cad45511f3eb30d4fe24

General

Target

BL_3409876544LDZ.exe
Size

675KB
MD5

728701a50def94c4af432a8a1f1b44ea
SHA1

b7c4429595cb3c7a7490b7d8baafacf44be13120
SHA256

c2ec0a1d7984be0fb24004369eca5bed7882ce5fe9e3cad45511f3eb30d4fe24
SHA512

c097e9f8b87b97bc905051f2b36b418948696e904db66ecc67f8d850d52a55541e030b95d32b1b3cdd0c93db24eeb46cca223fce92aea984df2c023d513726a8

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

185.222.58.154:06275

Mutex

AsyncMutex_6SI8OkPnk

Attributes

anti_vm
false
bsod
false
delay
20
install
false
install_file
invoice.pdf.exe
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/2160-126-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/2160-127-0x000000000040C73E-mapping.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

BL_3409876544LDZ.exe

description pid process target process

PID 776 set thread context of 2160 776 BL_3409876544LDZ.exe RegSvcs.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

1528 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

BL_3409876544LDZ.exe

pid process

776 BL_3409876544LDZ.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

BL_3409876544LDZ.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 776 BL_3409876544LDZ.exe
Token: SeDebugPrivilege 2160 RegSvcs.exe

description	pid	process	target process
PID 776 set thread context of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe

pid	process
1528	schtasks.exe

pid	process
776	BL_3409876544LDZ.exe

description	pid	process
Token: SeDebugPrivilege	776	BL_3409876544LDZ.exe
Token: SeDebugPrivilege	2160	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

BL_3409876544LDZ.exe

description	pid	process	target process
PID 776 wrote to memory of 1528	776	BL_3409876544LDZ.exe	schtasks.exe
PID 776 wrote to memory of 1528	776	BL_3409876544LDZ.exe	schtasks.exe
PID 776 wrote to memory of 1528	776	BL_3409876544LDZ.exe	schtasks.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe
PID 776 wrote to memory of 2160	776	BL_3409876544LDZ.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\BL_3409876544LDZ.exe
"C:\Users\Admin\AppData\Local\Temp\BL_3409876544LDZ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LXjAVgwIFQq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB2E.tmp"
2⤵
- Creates scheduled task(s)
PID:1528

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2160

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\tmpDB2E.tmp
MD5
f5df43dab90da28673a450937222dcb2

SHA1
f7f674177b61ea3e714f2094a703faf8700f6c94

SHA256
f64d297a16300f07a58b1898fc0efcd79f46d63454ce6f91b7a393f5399a728c

SHA512
887394539ed3096e76f0b0b04a2f501443271c302454f536e39f4ba540b9eabf5b83fda31bb5c5a5d03246157aca2c51564600576c143857083de690d8976ec7

Download Submit
memory/776-121-0x0000000002460000-0x000000000246E000-memory.dmp

Filesize
56KB

Download
memory/776-123-0x0000000000AE0000-0x0000000000AED000-memory.dmp

Filesize
52KB

Download
memory/776-118-0x0000000004CB0000-0x0000000004CB1000-memory.dmp

Filesize
4KB

Download
memory/776-119-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/776-120-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

Filesize
4KB

Download
memory/776-114-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/776-122-0x0000000007150000-0x00000000071B0000-memory.dmp

Filesize
384KB

Download
memory/776-117-0x0000000004C10000-0x0000000004C11000-memory.dmp

Filesize
4KB

Download
memory/776-116-0x0000000005110000-0x0000000005111000-memory.dmp

Filesize
4KB

Download
memory/1528-124-0x0000000000000000-mapping.dmp

Download
memory/2160-126-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2160-127-0x000000000040C73E-mapping.dmp

Download
memory/2160-130-0x0000000005300000-0x0000000005301000-memory.dmp

Filesize
4KB

Download
memory/2160-133-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads