asyncrat | 4ecdc9f6ebd035e8738d54d42686d571b2723c3c07b431e9cd551cfe1d09b8d1

General

Target

4661d321d22ead59aa1dcf7805b9680e.exe
Size

156KB
MD5

4661d321d22ead59aa1dcf7805b9680e
SHA1

0e87ec191765cbb62e9103e4cebc754314002e7d
SHA256

4ecdc9f6ebd035e8738d54d42686d571b2723c3c07b431e9cd551cfe1d09b8d1
SHA512

33d35b16524a010dbb08155708a9a6ed217d677ad4121e84131a1e1c59cd5fc0baa1f9dc1289bcc57e63be7dbc271d82008080a9acc8a30ba9fee10a4f511832
SSDEEP

3072:O6HomkMh4smo4GvX9m7+VBe16y71T+w/2FbM44:3+obvtIZIy7Wl

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

C2

xxxprofxxx.dnsdojo.com:5126

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/176-136-0x0000000000400000-0x0000000000414000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

Processes:

EregData.exeEregData.exe

pid process

2820 EregData.exe
2452 EregData.exe

pid	process
2820	EregData.exe
2452	EregData.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

4661d321d22ead59aa1dcf7805b9680e.exeEregData.exe

description	pid	process	target process
PID 4484 set thread context of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 2820 set thread context of 2452	2820	EregData.exe	EregData.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

872 schtasks.exe
1004 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4661d321d22ead59aa1dcf7805b9680e.exe

pid process

176 4661d321d22ead59aa1dcf7805b9680e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4661d321d22ead59aa1dcf7805b9680e.exe

description pid process

Token: SeDebugPrivilege 176 4661d321d22ead59aa1dcf7805b9680e.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4661d321d22ead59aa1dcf7805b9680e.exe

pid process

176 4661d321d22ead59aa1dcf7805b9680e.exe

pid	process
872	schtasks.exe
1004	schtasks.exe

pid	process
176	4661d321d22ead59aa1dcf7805b9680e.exe

description	pid	process
Token: SeDebugPrivilege	176	4661d321d22ead59aa1dcf7805b9680e.exe

pid	process
176	4661d321d22ead59aa1dcf7805b9680e.exe

Suspicious use of WriteProcessMemory 40 IoCs

Processes:

4661d321d22ead59aa1dcf7805b9680e.execmd.exeEregData.execmd.exe

description	pid	process	target process
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 176	4484	4661d321d22ead59aa1dcf7805b9680e.exe	4661d321d22ead59aa1dcf7805b9680e.exe
PID 4484 wrote to memory of 3948	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 3948	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 3948	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 3052	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 3052	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 3052	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 448	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 448	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 4484 wrote to memory of 448	4484	4661d321d22ead59aa1dcf7805b9680e.exe	cmd.exe
PID 3052 wrote to memory of 872	3052	cmd.exe	schtasks.exe
PID 3052 wrote to memory of 872	3052	cmd.exe	schtasks.exe
PID 3052 wrote to memory of 872	3052	cmd.exe	schtasks.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 2452	2820	EregData.exe	EregData.exe
PID 2820 wrote to memory of 4068	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 4068	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 4068	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 4576	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 4576	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 4576	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 2480	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 2480	2820	EregData.exe	cmd.exe
PID 2820 wrote to memory of 2480	2820	EregData.exe	cmd.exe
PID 4576 wrote to memory of 1004	4576	cmd.exe	schtasks.exe
PID 4576 wrote to memory of 1004	4576	cmd.exe	schtasks.exe
PID 4576 wrote to memory of 1004	4576	cmd.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4661d321d22ead59aa1dcf7805b9680e.exe
"C:\Users\Admin\AppData\Local\Temp\4661d321d22ead59aa1dcf7805b9680e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Users\Admin\AppData\Local\Temp\4661d321d22ead59aa1dcf7805b9680e.exe
  "C:\Users\Admin\AppData\Local\Temp\4661d321d22ead59aa1dcf7805b9680e.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:176
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\EregData"
  2⤵
  PID:3948
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\EregData\EregData.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\EregData\EregData.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:872
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\4661d321d22ead59aa1dcf7805b9680e.exe" "C:\Users\Admin\AppData\Roaming\EregData\EregData.exe"
  2⤵
  PID:448

C:\Users\Admin\AppData\Roaming\EregData\EregData.exe
C:\Users\Admin\AppData\Roaming\EregData\EregData.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Users\Admin\AppData\Roaming\EregData\EregData.exe
  "C:\Users\Admin\AppData\Roaming\EregData\EregData.exe"
  2⤵
  - Executes dropped EXE
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\EregData"
  2⤵
  PID:4068
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\EregData\EregData.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\EregData\EregData.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:1004
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\EregData\EregData.exe" "C:\Users\Admin\AppData\Roaming\EregData\EregData.exe"
  2⤵
  PID:2480

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\EregData.exe.log

Filesize
612B

MD5
4bc94363628f46b343c5e8e2da62ca26

SHA1
8a41ac46e24d790e11a407d0e957c4a6be6056c4

SHA256
c8e1d0b306825b2c9a3ed32a461dd191ceb861205425fdfb687a4889684a3e1a

SHA512
cf8ede5b84ba775d8ff89752530fa899d6b2e6424549202ab782a3caa92c0d9a31e9b2f660b51eedc932a68ba25e9ec228bb965cdc183e600ea8aa5a6736f829

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

Filesize
156KB

MD5
4661d321d22ead59aa1dcf7805b9680e

SHA1
0e87ec191765cbb62e9103e4cebc754314002e7d

SHA256
4ecdc9f6ebd035e8738d54d42686d571b2723c3c07b431e9cd551cfe1d09b8d1

SHA512
33d35b16524a010dbb08155708a9a6ed217d677ad4121e84131a1e1c59cd5fc0baa1f9dc1289bcc57e63be7dbc271d82008080a9acc8a30ba9fee10a4f511832

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

Filesize
156KB

MD5
4661d321d22ead59aa1dcf7805b9680e

SHA1
0e87ec191765cbb62e9103e4cebc754314002e7d

SHA256
4ecdc9f6ebd035e8738d54d42686d571b2723c3c07b431e9cd551cfe1d09b8d1

SHA512
33d35b16524a010dbb08155708a9a6ed217d677ad4121e84131a1e1c59cd5fc0baa1f9dc1289bcc57e63be7dbc271d82008080a9acc8a30ba9fee10a4f511832

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

Filesize
156KB

MD5
4661d321d22ead59aa1dcf7805b9680e

SHA1
0e87ec191765cbb62e9103e4cebc754314002e7d

SHA256
4ecdc9f6ebd035e8738d54d42686d571b2723c3c07b431e9cd551cfe1d09b8d1

SHA512
33d35b16524a010dbb08155708a9a6ed217d677ad4121e84131a1e1c59cd5fc0baa1f9dc1289bcc57e63be7dbc271d82008080a9acc8a30ba9fee10a4f511832

Download Submit
memory/176-135-0x0000000000000000-mapping.dmp

Download
memory/176-136-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/176-141-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/176-142-0x0000000005710000-0x000000000571A000-memory.dmp

Filesize
40KB

Download
memory/176-143-0x00000000061D0000-0x000000000626C000-memory.dmp

Filesize
624KB

Download
memory/448-139-0x0000000000000000-mapping.dmp

Download
memory/872-140-0x0000000000000000-mapping.dmp

Download
memory/1004-152-0x0000000000000000-mapping.dmp

Download
memory/2452-147-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2452-146-0x0000000000000000-mapping.dmp

Download
memory/2480-151-0x0000000000000000-mapping.dmp

Download
memory/3052-138-0x0000000000000000-mapping.dmp

Download
memory/3948-137-0x0000000000000000-mapping.dmp

Download
memory/4068-149-0x0000000000000000-mapping.dmp

Download
memory/4484-132-0x0000000000270000-0x000000000029E000-memory.dmp

Filesize
184KB

Download
memory/4484-134-0x0000000004C40000-0x0000000004CA6000-memory.dmp

Filesize
408KB

Download
memory/4484-133-0x0000000005180000-0x0000000005724000-memory.dmp

Filesize
5.6MB

Download
memory/4576-150-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads