asyncrat | 42a568aace998ff83db4d410215e6a8ab89c52a0faaa58d7c73841323656b631

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-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 5 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\AsyncClient.exe	asyncrat
C:\Users\Admin\AppData\Roaming\AsyncClient.exe	asyncrat
behavioral2/memory/4544-138-0x0000000000DD0000-0x0000000000DE2000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\win.exe	asyncrat
C:\Users\Admin\AppData\Roaming\win.exe	asyncrat

Warzone RAT Payload 4 IoCs

rat

Processes:

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

Executes dropped EXE 4 IoCs

Processes:

Exemama.exeAsyncClient.exeimages.exewin.exe

pid process

544 Exemama.exe
4544 AsyncClient.exe
4736 images.exe
3596 win.exe

pid	process
544	Exemama.exe
4544	AsyncClient.exe
4736	images.exe
3596	win.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exewscript.exeAsyncClient.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	AsyncClient.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

3180 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

5032 timeout.exe

pid	process
3180	schtasks.exe

pid	process
5032	timeout.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

powershell.exepowershell.exeAsyncClient.exe

pid	process
4496	powershell.exe
4140	powershell.exe
4496	powershell.exe
4140	powershell.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe
4544	AsyncClient.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exepowershell.exeAsyncClient.exewin.exe

description	pid	process
Token: SeDebugPrivilege	4496	powershell.exe
Token: SeDebugPrivilege	4140	powershell.exe
Token: SeDebugPrivilege	4544	AsyncClient.exe
Token: SeDebugPrivilege	3596	win.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

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

description	pid	process	target process
PID 4216 wrote to memory of 3100	4216	wscript.exe	wscript.exe
PID 4216 wrote to memory of 3100	4216	wscript.exe	wscript.exe
PID 4216 wrote to memory of 544	4216	wscript.exe	Exemama.exe
PID 4216 wrote to memory of 544	4216	wscript.exe	Exemama.exe
PID 4216 wrote to memory of 544	4216	wscript.exe	Exemama.exe
PID 3100 wrote to memory of 4544	3100	wscript.exe	AsyncClient.exe
PID 3100 wrote to memory of 4544	3100	wscript.exe	AsyncClient.exe
PID 3100 wrote to memory of 4544	3100	wscript.exe	AsyncClient.exe
PID 544 wrote to memory of 4496	544	Exemama.exe	powershell.exe
PID 544 wrote to memory of 4496	544	Exemama.exe	powershell.exe
PID 544 wrote to memory of 4496	544	Exemama.exe	powershell.exe
PID 544 wrote to memory of 4736	544	Exemama.exe	images.exe
PID 544 wrote to memory of 4736	544	Exemama.exe	images.exe
PID 544 wrote to memory of 4736	544	Exemama.exe	images.exe
PID 4736 wrote to memory of 4140	4736	images.exe	powershell.exe
PID 4736 wrote to memory of 4140	4736	images.exe	powershell.exe
PID 4736 wrote to memory of 4140	4736	images.exe	powershell.exe
PID 4736 wrote to memory of 1148	4736	images.exe	cmd.exe
PID 4736 wrote to memory of 1148	4736	images.exe	cmd.exe
PID 4736 wrote to memory of 1148	4736	images.exe	cmd.exe
PID 4736 wrote to memory of 1148	4736	images.exe	cmd.exe
PID 4736 wrote to memory of 1148	4736	images.exe	cmd.exe
PID 4544 wrote to memory of 4100	4544	AsyncClient.exe	cmd.exe
PID 4544 wrote to memory of 4100	4544	AsyncClient.exe	cmd.exe
PID 4544 wrote to memory of 4100	4544	AsyncClient.exe	cmd.exe
PID 4544 wrote to memory of 3608	4544	AsyncClient.exe	cmd.exe
PID 4544 wrote to memory of 3608	4544	AsyncClient.exe	cmd.exe
PID 4544 wrote to memory of 3608	4544	AsyncClient.exe	cmd.exe
PID 4100 wrote to memory of 3180	4100	cmd.exe	schtasks.exe
PID 4100 wrote to memory of 3180	4100	cmd.exe	schtasks.exe
PID 4100 wrote to memory of 3180	4100	cmd.exe	schtasks.exe
PID 3608 wrote to memory of 5032	3608	cmd.exe	timeout.exe
PID 3608 wrote to memory of 5032	3608	cmd.exe	timeout.exe
PID 3608 wrote to memory of 5032	3608	cmd.exe	timeout.exe
PID 3608 wrote to memory of 3596	3608	cmd.exe	win.exe
PID 3608 wrote to memory of 3596	3608	cmd.exe	win.exe
PID 3608 wrote to memory of 3596	3608	cmd.exe	win.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Shipping Info.pdf.js"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4216

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BHKIZRGxTd.js"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3100

C:\Users\Admin\AppData\Roaming\AsyncClient.exe
"C:\Users\Admin\AppData\Roaming\AsyncClient.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544

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:4100

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:3180

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDBFD.tmp.bat""
4⤵
- Suspicious use of WriteProcessMemory
PID:3608

C:\Windows\SysWOW64\timeout.exe
timeout 3
5⤵
- Delays execution with timeout.exe
PID:5032

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
5⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3596

C:\Users\Admin\AppData\Roaming\Exemama.exe
"C:\Users\Admin\AppData\Roaming\Exemama.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:544

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Add-MpPreference -ExclusionPath C:\
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4496

C:\ProgramData\images.exe
"C:\ProgramData\images.exe"
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4736

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Add-MpPreference -ExclusionPath C:\
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4140

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe"
4⤵
PID:1148

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

Query Registry

T1012

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
88d338d02bf1042d5b64c609cc6f2b1f

SHA1
f7c488c640a879e955b394d78392bce2551f8de7

SHA256
e3671b734da72172177d10daffcecfa8bb0f8275b068ffe3aa0b09482229fe9a

SHA512
b4b3b40406f69df843bae4e18d3cb01de898df788079da3d4b81e90862718e9fb5daf0dab3e099e94aef05f538ca45e97dbea7ff59f2bdf03717cce47cf1f438

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

MD5
93a44a63871dae1b075a5ed835e9a910

SHA1
234895c1e6595786bf6b9e59d2e536a26ab59f61

SHA256
dcc1d7cd1344acbc2b3b8d9e1f7ae18a2a9f616dbe8e34de5834279beaaca64f

SHA512
1d44654ff0584aff1b4107ed571afbac064054fd84da9f821d83145cc2c08d3c49f764d4243980dbd3407f3b768ccc758395d8e06cd08ff29fa01e4710ee2115

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\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
memory/544-132-0x0000000000000000-mapping.dmp

Download
memory/1148-150-0x0000000001080000-0x0000000001081000-memory.dmp

Filesize
4KB

Download
memory/1148-146-0x0000000000000000-mapping.dmp

Download
memory/3100-130-0x0000000000000000-mapping.dmp

Download
memory/3180-156-0x0000000000000000-mapping.dmp

Download
memory/3596-169-0x0000000000000000-mapping.dmp

Download
memory/3608-154-0x0000000000000000-mapping.dmp

Download
memory/4100-153-0x0000000000000000-mapping.dmp

Download
memory/4140-163-0x0000000007250000-0x000000000726A000-memory.dmp

Filesize
104KB

Download
memory/4140-166-0x0000000007480000-0x000000000748E000-memory.dmp

Filesize
56KB

Download
memory/4140-168-0x0000000007570000-0x0000000007578000-memory.dmp

Filesize
32KB

Download
memory/4140-151-0x0000000005F50000-0x0000000005F6E000-memory.dmp

Filesize
120KB

Download
memory/4140-165-0x00000000074D0000-0x0000000007566000-memory.dmp

Filesize
600KB

Download
memory/4140-164-0x00000000072C0000-0x00000000072CA000-memory.dmp

Filesize
40KB

Download
memory/4140-162-0x00000000078A0000-0x0000000007F1A000-memory.dmp

Filesize
6.5MB

Download
memory/4140-145-0x0000000000000000-mapping.dmp

Download
memory/4140-158-0x0000000006520000-0x0000000006552000-memory.dmp

Filesize
200KB

Download
memory/4140-159-0x0000000072680000-0x00000000726CC000-memory.dmp

Filesize
304KB

Download
memory/4140-160-0x0000000006500000-0x000000000651E000-memory.dmp

Filesize
120KB

Download
memory/4496-147-0x00000000055A0000-0x00000000055C2000-memory.dmp

Filesize
136KB

Download
memory/4496-144-0x0000000004F70000-0x0000000005598000-memory.dmp

Filesize
6.2MB

Download
memory/4496-148-0x0000000005740000-0x00000000057A6000-memory.dmp

Filesize
408KB

Download
memory/4496-149-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/4496-167-0x0000000007480000-0x000000000749A000-memory.dmp

Filesize
104KB

Download
memory/4496-143-0x0000000002520000-0x0000000002556000-memory.dmp

Filesize
216KB

Download
memory/4496-161-0x0000000072680000-0x00000000726CC000-memory.dmp

Filesize
304KB

Download
memory/4496-139-0x0000000000000000-mapping.dmp

Download
memory/4544-138-0x0000000000DD0000-0x0000000000DE2000-memory.dmp

Filesize
72KB

Download
memory/4544-135-0x0000000000000000-mapping.dmp

Download
memory/4544-152-0x0000000005940000-0x00000000059DC000-memory.dmp

Filesize
624KB

Download
memory/4736-140-0x0000000000000000-mapping.dmp

Download
memory/5032-157-0x0000000000000000-mapping.dmp

Download