asyncrat | 314d69dbe6a1acf74ed3ba3586af73c64f1fbd71a42f1f6c67ebb1fdabebc9a4

General

Target
ORDER #07443.doc............exe
Size 642KB
Sample201218-msftfp82f2
SHA256 314d69dbe6a1acf74ed3ba3586af73c64f1fbd71a42f1f6c67ebb1fdabebc9a4
MD5 ca83e99dd2d5db539b2a97dcd06f3abb
SHA1 f67efbcafb47f00c08aefdca789ba38533c65ec7
SHA512 243eee896881db288034b3e2d939267f10eb2668e973e2043b1aa1ee93764b22a96ec31bc0c5a8484ab0e90ab781698aba5f68dc5b24080e6171b37fbc4bbd96
MD5 SHA1 SHA512

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

chongmei33.publicvm.com:49746
chongmei33.publicvm.com:2703
chongmei33.publicvm.com:49714
chongmei33.publicvm.com:49703
185.165.153.116:49746
185.165.153.116:2703
185.165.153.116:49714
185.165.153.116:49703
54.37.36.116:49746
54.37.36.116:2703
54.37.36.116:49714
54.37.36.116:49703
185.244.30.92:49746
185.244.30.92:2703
185.244.30.92:49714
185.244.30.92:49703
dongreg202020.duckdns.org:49746
dongreg202020.duckdns.org:2703
dongreg202020.duckdns.org:49714
dongreg202020.duckdns.org:49703
178.33.222.241:49746
178.33.222.241:2703
178.33.222.241:49714
178.33.222.241:49703
rahim321.duckdns.org:49746
rahim321.duckdns.org:2703
rahim321.duckdns.org:49714
rahim321.duckdns.org:49703
79.134.225.92:49746
79.134.225.92:2703
79.134.225.92:49714
79.134.225.92:49703
37.120.208.36:49746
37.120.208.36:2703
37.120.208.36:49714
37.120.208.36:49703

Mutex

word_6SI86kPnk

Attributes

aes_key
Hz9AIk2iuw31bDO3o1GepDyHZ5vVJkGp
anti_detection
false
autorun
false
bdos
false
delay
SEPT G8
host
chongmei33.publicvm.com,185.165.153.116,54.37.36.116,185.244.30.92,dongreg202020.duckdns.org,178.33.222.241,rahim321.duckdns.org,79.134.225.92,37.120.208.36
hwid
3
install_file
install_folder
%AppData%
mutex
word_6SI86kPnk
pastebin_config
null
port
49746,2703,49714,49703
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

resource	yara_rule
behavioral1/memory/1180-20-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1180-21-0x000000000040C89E-mapping.dmp	asyncrat
behavioral1/memory/1180-22-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1180-23-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

pid	Process
296	adobe.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\adobe.lnk	adobe.exe

Loads dropped DLL 2 IoCs

pid	Process
1520	cmd.exe
296	adobe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 296 set thread context of 1180	296	adobe.exe	34

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
296	adobe.exe
296	adobe.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	ORDER #07443.doc............exe
Token: SeDebugPrivilege	296	adobe.exe
Token: SeDebugPrivilege	1180	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 1664	1684	ORDER #07443.doc............exe	29
PID 1684 wrote to memory of 1664	1684	ORDER #07443.doc............exe	29
PID 1684 wrote to memory of 1664	1684	ORDER #07443.doc............exe	29
PID 1684 wrote to memory of 1664	1684	ORDER #07443.doc............exe	29
PID 1684 wrote to memory of 1520	1684	ORDER #07443.doc............exe	31
PID 1684 wrote to memory of 1520	1684	ORDER #07443.doc............exe	31
PID 1684 wrote to memory of 1520	1684	ORDER #07443.doc............exe	31
PID 1684 wrote to memory of 1520	1684	ORDER #07443.doc............exe	31
PID 1520 wrote to memory of 296	1520	cmd.exe	33
PID 1520 wrote to memory of 296	1520	cmd.exe	33
PID 1520 wrote to memory of 296	1520	cmd.exe	33
PID 1520 wrote to memory of 296	1520	cmd.exe	33
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34
PID 296 wrote to memory of 1180	296	adobe.exe	34

C:\Users\Admin\AppData\Local\Temp\ORDER #07443.doc............exe
"C:\Users\Admin\AppData\Local\Temp\ORDER #07443.doc............exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\ORDER #07443.doc............exe" "C:\Users\Admin\adobe\adobe.exe"
  2⤵
  PID:1664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\adobe\adobe.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1520
- - C:\Users\Admin\adobe\adobe.exe
    "C:\Users\Admin\adobe\adobe.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:296
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1180

Network

MITRE ATT&CK Matrix

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Downloads

memory/296-13-0x0000000074110000-0x00000000747FE000-memory.dmp

Download

memory/296-19-0x0000000001EC0000-0x0000000001ECA000-memory.dmp

Download

memory/296-14-0x0000000000A10000-0x0000000000A11000-memory.dmp

Download

memory/1180-20-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/1180-22-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/1180-23-0x0000000000400000-0x0000000000412000-memory.dmp

Download

memory/1180-24-0x0000000074110000-0x00000000747FE000-memory.dmp

Download

memory/1684-5-0x00000000003C0000-0x00000000003D7000-memory.dmp

Download

memory/1684-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Download

memory/1684-6-0x0000000000430000-0x000000000044F000-memory.dmp

Download

memory/1684-3-0x0000000000950000-0x0000000000951000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads