asyncrat | fad399ac99b1ef8592fcceff8066146c0afc5be6dde4dfcd2999f565efc2c93a

Resubmissions

26/09/2022, 17:41

220926-v9drzacfdr 10

Analysis

max time kernel
136s
max time network
158s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
26/09/2022, 17:41

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General

Target

FILEV123.exe
Size

300.0MB
MD5

2a3295c758419a6b8477dad43bd02883
SHA1

7403d49621e3d9ca470afdd7f0eebcdbdf6d0b65
SHA256

9a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5
SHA512

5f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89
SSDEEP

6144:ABMZbzgN9y4e3q99rUcupj+awhEGXBuokWy0L50qnVjAv2U:AKZbcNUFm5upLwhBXBuoppNnVct

Score

10^/10

asyncrat venom clients rat

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

venom12345.duckdns.org:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 11 IoCs

rat

resource	yara_rule
behavioral1/memory/2008-59-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2008-60-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2008-61-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2008-62-0x00000000004109BE-mapping.dmp	asyncrat
behavioral1/memory/2008-66-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/2008-64-0x0000000000400000-0x0000000000416000-memory.dmp	asyncrat
behavioral1/memory/1900-83-0x00000000004109BE-mapping.dmp	asyncrat
behavioral1/memory/1900-92-0x0000000000090000-0x00000000000A6000-memory.dmp	asyncrat
behavioral1/memory/1900-89-0x0000000000090000-0x00000000000A6000-memory.dmp	asyncrat
behavioral1/memory/1900-85-0x0000000000090000-0x00000000000A6000-memory.dmp	asyncrat
behavioral1/memory/1064-108-0x00000000004109BE-mapping.dmp	asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1392	msdtc.exe
1180	msdtc.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 2008	1808	FILEV123.exe	27
PID 1392 set thread context of 1900	1392	msdtc.exe	38
PID 1180 set thread context of 1064	1180	msdtc.exe	47

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
632	schtasks.exe
1588	schtasks.exe
1572	schtasks.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1808	FILEV123.exe
Token: SeDebugPrivilege	2008	RegAsm.exe
Token: SeDebugPrivilege	1392	msdtc.exe
Token: SeDebugPrivilege	1900	RegAsm.exe
Token: SeDebugPrivilege	1180	msdtc.exe
Token: SeDebugPrivilege	1064	RegAsm.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 2008	1808	FILEV123.exe	27
PID 1808 wrote to memory of 1360	1808	FILEV123.exe	28
PID 1808 wrote to memory of 1360	1808	FILEV123.exe	28
PID 1808 wrote to memory of 1360	1808	FILEV123.exe	28
PID 1808 wrote to memory of 1360	1808	FILEV123.exe	28
PID 1808 wrote to memory of 1768	1808	FILEV123.exe	30
PID 1808 wrote to memory of 1768	1808	FILEV123.exe	30
PID 1808 wrote to memory of 1768	1808	FILEV123.exe	30
PID 1808 wrote to memory of 1768	1808	FILEV123.exe	30
PID 1808 wrote to memory of 1744	1808	FILEV123.exe	31
PID 1808 wrote to memory of 1744	1808	FILEV123.exe	31
PID 1808 wrote to memory of 1744	1808	FILEV123.exe	31
PID 1808 wrote to memory of 1744	1808	FILEV123.exe	31
PID 1768 wrote to memory of 632	1768	cmd.exe	33
PID 1768 wrote to memory of 632	1768	cmd.exe	33
PID 1768 wrote to memory of 632	1768	cmd.exe	33
PID 1768 wrote to memory of 632	1768	cmd.exe	33
PID 1992 wrote to memory of 1392	1992	taskeng.exe	37
PID 1992 wrote to memory of 1392	1992	taskeng.exe	37
PID 1992 wrote to memory of 1392	1992	taskeng.exe	37
PID 1992 wrote to memory of 1392	1992	taskeng.exe	37
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1900	1392	msdtc.exe	38
PID 1392 wrote to memory of 1460	1392	msdtc.exe	39
PID 1392 wrote to memory of 1460	1392	msdtc.exe	39
PID 1392 wrote to memory of 1460	1392	msdtc.exe	39
PID 1392 wrote to memory of 1460	1392	msdtc.exe	39
PID 1392 wrote to memory of 1612	1392	msdtc.exe	40
PID 1392 wrote to memory of 1612	1392	msdtc.exe	40
PID 1392 wrote to memory of 1612	1392	msdtc.exe	40
PID 1392 wrote to memory of 1612	1392	msdtc.exe	40
PID 1392 wrote to memory of 1120	1392	msdtc.exe	41
PID 1392 wrote to memory of 1120	1392	msdtc.exe	41
PID 1392 wrote to memory of 1120	1392	msdtc.exe	41
PID 1392 wrote to memory of 1120	1392	msdtc.exe	41
PID 1612 wrote to memory of 1588	1612	cmd.exe	45
PID 1612 wrote to memory of 1588	1612	cmd.exe	45
PID 1612 wrote to memory of 1588	1612	cmd.exe	45
PID 1612 wrote to memory of 1588	1612	cmd.exe	45
PID 1992 wrote to memory of 1180	1992	taskeng.exe	46
PID 1992 wrote to memory of 1180	1992	taskeng.exe	46
PID 1992 wrote to memory of 1180	1992	taskeng.exe	46
PID 1992 wrote to memory of 1180	1992	taskeng.exe	46

C:\Users\Admin\AppData\Local\Temp\FILEV123.exe
"C:\Users\Admin\AppData\Local\Temp\FILEV123.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
  2⤵
  PID:1360
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1768
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:632
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\FILEV123.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
  2⤵
  PID:1744

C:\Windows\system32\taskeng.exe
taskeng.exe {540B6182-FE6C-4FBC-AC3F-767DFCA5A26B} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
  C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1392
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1900
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
    3⤵
    PID:1460
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1612
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
      4⤵
      Creates scheduled task(s)
      PID:1588
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
    3⤵
    PID:1120
- C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
  C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  PID:1180
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1064
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
    3⤵
    PID:1092
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe'" /f
      4⤵
      Creates scheduled task(s)
      PID:1572
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\msdtc"
    3⤵
    PID:1552
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe" "C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe"
    3⤵
    PID:2040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\msdtc\msdtc.exe

Filesize
300.0MB

MD5
2a3295c758419a6b8477dad43bd02883

SHA1
7403d49621e3d9ca470afdd7f0eebcdbdf6d0b65

SHA256
9a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5

SHA512
5f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89

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

Filesize
300.0MB

MD5
2a3295c758419a6b8477dad43bd02883

SHA1
7403d49621e3d9ca470afdd7f0eebcdbdf6d0b65

SHA256
9a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5

SHA512
5f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89

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

Filesize
300.0MB

MD5
2a3295c758419a6b8477dad43bd02883

SHA1
7403d49621e3d9ca470afdd7f0eebcdbdf6d0b65

SHA256
9a08dc08a2e7bf39078afd478c3e38718416d6dff45a081cd17daecccca262d5

SHA512
5f2148eb99be6eaea85e4164d6ae72744a7751fec691f382b642da4655c0e463240c981fab9cba5a4d93e25d5549eb9f61dd5ca5267a00c95afdf07d60173d89

Download Submit
memory/1180-100-0x00000000002F0000-0x000000000037C000-memory.dmp

Filesize
560KB

Download
memory/1392-75-0x0000000000C90000-0x0000000000D1C000-memory.dmp

Filesize
560KB

Download
memory/1808-54-0x0000000000DD0000-0x0000000000E5C000-memory.dmp

Filesize
560KB

Download
memory/1808-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1900-89-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download
memory/1900-85-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download
memory/1900-92-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download
memory/2008-61-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-57-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-60-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-64-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-56-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-59-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2008-66-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads