71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec

General

Target

71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe
Size

310KB
MD5

5a20a059671515fd536a9e86d227dd90
SHA1

8391b4122102d015d0c4adb14f94a6f6f7e6056a
SHA256

71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec
SHA512

2462cb0b9c1d8cfb89c0db9deb840adacbd47b444cb6bdc893e8a09e57ed4855da5d396f277e3da22b2be3e0bd1106e65037558e9d0c3ef7f856a9bd1e3daf3c
SSDEEP

6144:nhjR9isD3WWDXQKaw/Pe/S7Bjjq79aSACMrdU3XfAWngrTw9vYHfQP7IuoST1pcb:7WWzzfSS7RjIARpEAWngrGMQDfoST1e

Score

8^/10

persistence upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Wow6432Node = "C:\\Users\\Admin\\AppData\\Roaming\\ADA3EF\\ADA3EF.exe"	svchost.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4788-132-0x0000000000400000-0x00000000004C8000-memory.dmp	upx
behavioral2/memory/4788-135-0x0000000000400000-0x00000000004C8000-memory.dmp	upx

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4788-135-0x0000000000400000-0x00000000004C8000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4788 set thread context of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82

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 2 IoCs

pid	Process
3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe
3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 4788 wrote to memory of 3980	4788	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	82
PID 3980 wrote to memory of 5072	3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	83
PID 3980 wrote to memory of 5072	3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	83
PID 3980 wrote to memory of 5072	3980	71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe	83

C:\Users\Admin\AppData\Local\Temp\71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe
"C:\Users\Admin\AppData\Local\Temp\71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Temp\71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe
  "C:\Users\Admin\AppData\Local\Temp\71420509f8d93c2c81b45ac63da2e4a4812627831ea8f3aa9a666c08b839e7ec.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3980
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Adds policy Run key to start application
    PID:5072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3980-134-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/3980-136-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/3980-137-0x0000000000A70000-0x0000000001A70000-memory.dmp

Filesize
16.0MB

Download
memory/3980-139-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/4788-132-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/4788-135-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/5072-140-0x0000000000A30000-0x0000000000A41000-memory.dmp

Filesize
68KB

Download
memory/5072-141-0x0000000000BA0000-0x0000000000BAD000-memory.dmp

Filesize
52KB

Download

Analysis

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