asyncrat | 42a568aace998ff83db4d410215e6a8ab89c52a0faaa58d7c73841323656b631

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20220414-en
submitted
04-07-2022 07:16

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General

Target

Shipping Info.pdf.js
Size

374KB
MD5

1eb22e2b164c30a555d09c7537d74729
SHA1

db0e1a2b9604a2f70695b5749efcabd6ad0d517c
SHA256

e098dcf14cad6499677cbce1619ebf5ce683f45280ec95f20523319977dc8e61
SHA512

65b1062d62dba8b1e2707b14fd74ef2e46f7cdb494e28bb457167815b098ffd0ba6c13b2e353bf09173490e8ae0af5fc907db46b5b25c139b279d3f6d42bd172

Score

10^/10

asyncrat warzonerat default infostealer persistence rat

Malware Config

Extracted

Family

warzonerat

udooiuyt.dynamic-dns.net:5200

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

franmhort.duia.ro:8153

Mutex

Mutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
win.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

Async RAT payload 7 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\AsyncClient.exe	asyncrat
C:\Users\Admin\AppData\Roaming\AsyncClient.exe	asyncrat
behavioral1/memory/1136-64-0x0000000001150000-0x0000000001162000-memory.dmp	asyncrat
\Users\Admin\AppData\Roaming\win.exe	asyncrat
C:\Users\Admin\AppData\Roaming\win.exe	asyncrat
C:\Users\Admin\AppData\Roaming\win.exe	asyncrat
behavioral1/memory/836-75-0x0000000001350000-0x0000000001362000-memory.dmp	asyncrat

Warzone RAT Payload 6 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Exemama.exe	warzonerat
C:\Users\Admin\AppData\Roaming\Exemama.exe	warzonerat
\ProgramData\images.exe	warzonerat
\ProgramData\images.exe	warzonerat
C:\ProgramData\images.exe	warzonerat
C:\ProgramData\images.exe	warzonerat

Executes dropped EXE 4 IoCs

Processes:

Exemama.exeAsyncClient.exewin.exeimages.exe

pid process

1256 Exemama.exe
1136 AsyncClient.exe
836 win.exe
1940 images.exe
Loads dropped DLL 3 IoCs

Processes:

cmd.exeExemama.exe

pid process

240 cmd.exe
1256 Exemama.exe
1256 Exemama.exe

pid	process
1256	Exemama.exe
1136	AsyncClient.exe
836	win.exe
1940	images.exe

pid	process
240	cmd.exe
1256	Exemama.exe
1256	Exemama.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Exemama.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Images = "C:\\ProgramData\\images.exe"	Exemama.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

816 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1636 timeout.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

AsyncClient.exepowershell.exepowershell.exe

pid process

1136 AsyncClient.exe
1700 powershell.exe
992 powershell.exe

pid	process
816	schtasks.exe

pid	process
1636	timeout.exe

pid	process
1136	AsyncClient.exe
1700	powershell.exe
992	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

AsyncClient.exewin.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1136	AsyncClient.exe
Token: SeDebugPrivilege	836	win.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	992	powershell.exe

Suspicious use of WriteProcessMemory 49 IoCs

Processes:

wscript.exewscript.exeAsyncClient.execmd.execmd.exeExemama.exeimages.exe

description	pid	process	target process
PID 1172 wrote to memory of 1984	1172	wscript.exe	wscript.exe
PID 1172 wrote to memory of 1984	1172	wscript.exe	wscript.exe
PID 1172 wrote to memory of 1984	1172	wscript.exe	wscript.exe
PID 1172 wrote to memory of 1256	1172	wscript.exe	Exemama.exe
PID 1172 wrote to memory of 1256	1172	wscript.exe	Exemama.exe
PID 1172 wrote to memory of 1256	1172	wscript.exe	Exemama.exe
PID 1172 wrote to memory of 1256	1172	wscript.exe	Exemama.exe
PID 1984 wrote to memory of 1136	1984	wscript.exe	AsyncClient.exe
PID 1984 wrote to memory of 1136	1984	wscript.exe	AsyncClient.exe
PID 1984 wrote to memory of 1136	1984	wscript.exe	AsyncClient.exe
PID 1984 wrote to memory of 1136	1984	wscript.exe	AsyncClient.exe
PID 1136 wrote to memory of 764	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 764	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 764	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 764	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 240	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 240	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 240	1136	AsyncClient.exe	cmd.exe
PID 1136 wrote to memory of 240	1136	AsyncClient.exe	cmd.exe
PID 764 wrote to memory of 816	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 816	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 816	764	cmd.exe	schtasks.exe
PID 764 wrote to memory of 816	764	cmd.exe	schtasks.exe
PID 240 wrote to memory of 1636	240	cmd.exe	timeout.exe
PID 240 wrote to memory of 1636	240	cmd.exe	timeout.exe
PID 240 wrote to memory of 1636	240	cmd.exe	timeout.exe
PID 240 wrote to memory of 1636	240	cmd.exe	timeout.exe
PID 240 wrote to memory of 836	240	cmd.exe	win.exe
PID 240 wrote to memory of 836	240	cmd.exe	win.exe
PID 240 wrote to memory of 836	240	cmd.exe	win.exe
PID 240 wrote to memory of 836	240	cmd.exe	win.exe
PID 1256 wrote to memory of 1700	1256	Exemama.exe	powershell.exe
PID 1256 wrote to memory of 1700	1256	Exemama.exe	powershell.exe
PID 1256 wrote to memory of 1700	1256	Exemama.exe	powershell.exe
PID 1256 wrote to memory of 1700	1256	Exemama.exe	powershell.exe
PID 1256 wrote to memory of 1940	1256	Exemama.exe	images.exe
PID 1256 wrote to memory of 1940	1256	Exemama.exe	images.exe
PID 1256 wrote to memory of 1940	1256	Exemama.exe	images.exe
PID 1256 wrote to memory of 1940	1256	Exemama.exe	images.exe
PID 1940 wrote to memory of 992	1940	images.exe	powershell.exe
PID 1940 wrote to memory of 992	1940	images.exe	powershell.exe
PID 1940 wrote to memory of 992	1940	images.exe	powershell.exe
PID 1940 wrote to memory of 992	1940	images.exe	powershell.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe
PID 1940 wrote to memory of 1544	1940	images.exe	cmd.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Shipping Info.pdf.js"
1⤵
- Suspicious use of WriteProcessMemory
PID:1172

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BHKIZRGxTd.js"
2⤵
- Suspicious use of WriteProcessMemory
PID:1984

C:\Users\Admin\AppData\Roaming\AsyncClient.exe
"C:\Users\Admin\AppData\Roaming\AsyncClient.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"' & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:764

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"'
5⤵
- Creates scheduled task(s)
PID:816

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp6FD4.tmp.bat""
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:240

C:\Windows\SysWOW64\timeout.exe
timeout 3
5⤵
- Delays execution with timeout.exe
PID:1636

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
5⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:836

C:\Users\Admin\AppData\Roaming\Exemama.exe
"C:\Users\Admin\AppData\Roaming\Exemama.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1256

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Add-MpPreference -ExclusionPath C:\
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1700

C:\ProgramData\images.exe
"C:\ProgramData\images.exe"
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Add-MpPreference -ExclusionPath C:\
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:992

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe"
4⤵
PID:1544

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\images.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
C:\ProgramData\images.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6FD4.tmp.bat
Filesize
147B

MD5
de13963b61780f39289d8b73f7da712b

SHA1
8c71940efb7cf2a497cc61c28dda666cddc3880e

SHA256
558e40de6138ced3d4feaf3cb594aff55572b73082ec12621d34ebfdd90dc6d9

SHA512
13bdd24b3b790df4ced2582712d221d1a65de4140fc6725dda0cd30d0bec37dd376548f0dcb2c36a66cc0b7e0ef2961210e9308956207208a48dd156b2f0786d

Download Submit
C:\Users\Admin\AppData\Roaming\AsyncClient.exe
Filesize
45KB

MD5
cbdce3b5e2939fe92312004dcb31151f

SHA1
6f11f275c611decd4659f23a4593103f327806a6

SHA256
6ccc49875c2d837f462c4c3bd81f80b3be93f8435e8a22e042b5db025a31a6e3

SHA512
6240f21957016db0607987c81b110e78640d20eeba2dc0274cf6e6741cfd7924ca3b42325405e620f423157c34f355f188dbf60de96421e87f0d53e271fcc2c8

Download Submit
C:\Users\Admin\AppData\Roaming\AsyncClient.exe
Filesize
45KB

MD5
cbdce3b5e2939fe92312004dcb31151f

SHA1
6f11f275c611decd4659f23a4593103f327806a6

SHA256
6ccc49875c2d837f462c4c3bd81f80b3be93f8435e8a22e042b5db025a31a6e3

SHA512
6240f21957016db0607987c81b110e78640d20eeba2dc0274cf6e6741cfd7924ca3b42325405e620f423157c34f355f188dbf60de96421e87f0d53e271fcc2c8

Download Submit
C:\Users\Admin\AppData\Roaming\BHKIZRGxTd.js
Filesize
89KB

MD5
ee1a6922b6661ba75891fa7bf2711cbb

SHA1
b189a0f5aae6163a6157800ae9051a207d72fb0c

SHA256
399dadbfe84b0ecb6c65fcfabf384873be7234ad60b84cbaaf611f6c3ade71e0

SHA512
edd614e4c8c36938ed0e5489cf0bed08645eda8b2cd2fb73f5e328348340922cc0f091dc059b737cf4ec23e0455f7009bc18992ef3330b81b6a847cf6d2cdcf3

Download Submit
C:\Users\Admin\AppData\Roaming\Exemama.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
C:\Users\Admin\AppData\Roaming\Exemama.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
c87dcab4d0b3526fe09b2971493b399d

SHA1
0b73d3c47a0ce4ba58c2565f1d4e1f9e72cece7b

SHA256
39202a0a3919191f5f29fa3324686747ff9056e833fe49cee1075931ec6eb95a

SHA512
d177fa8613fea5ec75409970bc3f78078b82db2926765e0791cb7dd093d32f252f1a0629337f15c6a16fffcd018e5afa7a39cd3e0e97fb5bfce65707698afbfa

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
Filesize
45KB

MD5
cbdce3b5e2939fe92312004dcb31151f

SHA1
6f11f275c611decd4659f23a4593103f327806a6

SHA256
6ccc49875c2d837f462c4c3bd81f80b3be93f8435e8a22e042b5db025a31a6e3

SHA512
6240f21957016db0607987c81b110e78640d20eeba2dc0274cf6e6741cfd7924ca3b42325405e620f423157c34f355f188dbf60de96421e87f0d53e271fcc2c8

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
Filesize
45KB

MD5
cbdce3b5e2939fe92312004dcb31151f

SHA1
6f11f275c611decd4659f23a4593103f327806a6

SHA256
6ccc49875c2d837f462c4c3bd81f80b3be93f8435e8a22e042b5db025a31a6e3

SHA512
6240f21957016db0607987c81b110e78640d20eeba2dc0274cf6e6741cfd7924ca3b42325405e620f423157c34f355f188dbf60de96421e87f0d53e271fcc2c8

Download Submit
\ProgramData\images.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
\ProgramData\images.exe
Filesize
113KB

MD5
2b66b672e8e821b5f31c499679d865f1

SHA1
0a89f829f5d477538e412a929b876f4bf17f21dc

SHA256
2f9ec3d178213d5f97668cc78eca26bdad67afd933ad441db0718fa629a6bbfe

SHA512
60a014cf80a7dc3392e67e51f91530cf418d24c4cfd3c7fa65bb24be928a8f55e41fe68384d1d56790aa9bac7dc7a7745a36abc910877860457fd873d1a5eeb0

Download Submit
\Users\Admin\AppData\Roaming\win.exe
Filesize
45KB

MD5
cbdce3b5e2939fe92312004dcb31151f

SHA1
6f11f275c611decd4659f23a4593103f327806a6

SHA256
6ccc49875c2d837f462c4c3bd81f80b3be93f8435e8a22e042b5db025a31a6e3

SHA512
6240f21957016db0607987c81b110e78640d20eeba2dc0274cf6e6741cfd7924ca3b42325405e620f423157c34f355f188dbf60de96421e87f0d53e271fcc2c8

Download Submit
memory/240-67-0x0000000000000000-mapping.dmp

Download
memory/764-66-0x0000000000000000-mapping.dmp

Download
memory/816-68-0x0000000000000000-mapping.dmp

Download
memory/836-73-0x0000000000000000-mapping.dmp

Download
memory/836-75-0x0000000001350000-0x0000000001362000-memory.dmp

Filesize
72KB

Download
memory/992-92-0x000000006FFB0000-0x000000007055B000-memory.dmp

Filesize
5.7MB

Download
memory/992-88-0x0000000000000000-mapping.dmp

Download
memory/1136-64-0x0000000001150000-0x0000000001162000-memory.dmp

Filesize
72KB

Download
memory/1136-60-0x0000000000000000-mapping.dmp

Download
memory/1172-54-0x000007FEFBBD1000-0x000007FEFBBD3000-memory.dmp

Filesize
8KB

Download
memory/1256-58-0x0000000000000000-mapping.dmp

Download
memory/1256-62-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1544-89-0x0000000000000000-mapping.dmp

Download
memory/1544-93-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/1636-70-0x0000000000000000-mapping.dmp

Download
memory/1700-85-0x0000000070390000-0x000000007093B000-memory.dmp

Filesize
5.7MB

Download
memory/1700-86-0x0000000070390000-0x000000007093B000-memory.dmp

Filesize
5.7MB

Download
memory/1700-78-0x0000000000000000-mapping.dmp

Download
memory/1940-82-0x0000000000000000-mapping.dmp

Download
memory/1984-55-0x0000000000000000-mapping.dmp

Download