asyncrat | d71cdeb52c0e74f3b4c96e4b5dbe70af00814283985036d62b43de0950d77b22

General

Target

FedEx_Label_202218201.exe
Size

28KB
MD5

9fa348df801f0d2cebb02378b3546f6e
SHA1

03a5c5344ad4c92366cb086ad78bb7f4fe4f7a17
SHA256

d71cdeb52c0e74f3b4c96e4b5dbe70af00814283985036d62b43de0950d77b22
SHA512

b48e919554920a4f441401b8f453a09eebf10fced670e1e35d01433a2edb990815894250cab3773104ca05064183be3779d4f6acac3040f5955a05a760476ae7
SSDEEP

384:1iAAKDVj/yf2BGuegE3YCoLY40E6vDOT5kYgH5Oj8A5PPPPPPPPPPPPPPPQPPPPV:0AAGo2eg+YCc/6m5k75RPhNf2

Score

10^/10

asyncrat persistence rat

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

FedEx_Label_202218201.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	FedEx_Label_202218201.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

FedEx_Label_202218201.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Hzezmdk = "\"C:\\Users\\Admin\\AppData\\Roaming\\Pnitzny\\Hzezmdk.exe\""	FedEx_Label_202218201.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

FedEx_Label_202218201.exe

description pid process target process

PID 1944 set thread context of 1584 1944 FedEx_Label_202218201.exe FedEx_Label_202218201.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

4832 powershell.exe
4832 powershell.exe
4352 powershell.exe
4352 powershell.exe

description	pid	process	target process
PID 1944 set thread context of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe

pid	process
4832	powershell.exe
4832	powershell.exe
4352	powershell.exe
4352	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

FedEx_Label_202218201.exepowershell.exepowershell.exeFedEx_Label_202218201.exe

description	pid	process
Token: SeDebugPrivilege	1944	FedEx_Label_202218201.exe
Token: SeDebugPrivilege	4832	powershell.exe
Token: SeDebugPrivilege	4352	powershell.exe
Token: SeDebugPrivilege	1584	FedEx_Label_202218201.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

FedEx_Label_202218201.exe

description	pid	process	target process
PID 1944 wrote to memory of 4832	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 4832	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 4832	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 4352	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 4352	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 4352	1944	FedEx_Label_202218201.exe	powershell.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe
PID 1944 wrote to memory of 1584	1944	FedEx_Label_202218201.exe	FedEx_Label_202218201.exe

C:\Users\Admin\AppData\Local\Temp\FedEx_Label_202218201.exe
"C:\Users\Admin\AppData\Local\Temp\FedEx_Label_202218201.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4832

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwADsAIABTAGUAdAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAJwBDADoAXAAnAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4352

C:\Users\Admin\AppData\Local\Temp\FedEx_Label_202218201.exe
C:\Users\Admin\AppData\Local\Temp\FedEx_Label_202218201.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\FedEx_Label_202218201.exe.log
Filesize
1KB

MD5
e87e48b105757e1c7563d1c719059733

SHA1
28a3f2b2e0672da2b531f4757d2b20b53032dafc

SHA256
0aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461

SHA512
bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
1KB

MD5
6195a91754effb4df74dbc72cdf4f7a6

SHA1
aba262f5726c6d77659fe0d3195e36a85046b427

SHA256
3254495a5513b37a2686a876d0040275414699e7ce760e7b5ee05e41a54b96f5

SHA512
ed723d15de267390dc93263538428e2c881be3494c996a810616b470d6df7d5acfcc8725687d5c50319ebef45caef44f769bfc32e0dc3abd249dacff4a12cc89

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
Filesize
53KB

MD5
06ad34f9739c5159b4d92d702545bd49

SHA1
9152a0d4f153f3f40f7e606be75f81b582ee0c17

SHA256
474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

SHA512
c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
16KB

MD5
4a19932a1c5f1810402905b92d4e4e1d

SHA1
242567211d229afa7c0b40d59d535d3c8fffeb5e

SHA256
14711d1bc9dc21ac2625da85415b1861497a1a5c447489e1ba07df87acae7888

SHA512
8483baf184057fa9d09a41a2e9cbc0ac4b90e29743745d2f456602914fb63f2fae9066b92b9a54b3cfdeb850b00dd5ddfdb745db38990c0d012ddf77a72babf9

Download Submit
memory/1584-158-0x0000000006000000-0x00000000065A4000-memory.dmp

Filesize
5.6MB

Download
memory/1584-157-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/1584-155-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1584-154-0x0000000000000000-mapping.dmp

Download
memory/1944-133-0x0000000005DB0000-0x0000000005DD2000-memory.dmp

Filesize
136KB

Download
memory/1944-132-0x0000000000820000-0x000000000082C000-memory.dmp

Filesize
48KB

Download
memory/4352-150-0x0000000007F70000-0x0000000008006000-memory.dmp

Filesize
600KB

Download
memory/4352-151-0x0000000007E60000-0x0000000007E6E000-memory.dmp

Filesize
56KB

Download
memory/4352-153-0x0000000007EA0000-0x0000000007EA8000-memory.dmp

Filesize
32KB

Download
memory/4352-152-0x0000000007ED0000-0x0000000007EEA000-memory.dmp

Filesize
104KB

Download
memory/4352-146-0x0000000007BA0000-0x0000000007BD2000-memory.dmp

Filesize
200KB

Download
memory/4352-147-0x000000006FB80000-0x000000006FBCC000-memory.dmp

Filesize
304KB

Download
memory/4352-148-0x0000000006F40000-0x0000000006F5E000-memory.dmp

Filesize
120KB

Download
memory/4352-149-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

Filesize
40KB

Download
memory/4352-142-0x0000000000000000-mapping.dmp

Download
memory/4832-139-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

Filesize
120KB

Download
memory/4832-140-0x0000000007720000-0x0000000007D9A000-memory.dmp

Filesize
6.5MB

Download
memory/4832-141-0x0000000006390000-0x00000000063AA000-memory.dmp

Filesize
104KB

Download
memory/4832-138-0x0000000005890000-0x00000000058F6000-memory.dmp

Filesize
408KB

Download
memory/4832-137-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/4832-136-0x0000000005030000-0x0000000005658000-memory.dmp

Filesize
6.2MB

Download
memory/4832-135-0x00000000048E0000-0x0000000004916000-memory.dmp

Filesize
216KB

Download
memory/4832-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads