48233756b5944f436a0a9b4e245d6234dc7596b1e40ba1644fb6f035b2169a5a

General

Target

65483353bf8c9791c9c82f8585459160N.exe
Size

135KB
MD5

65483353bf8c9791c9c82f8585459160
SHA1

2dc8cbd14afad5cc5976fcb4053e7363be7950e7
SHA256

48233756b5944f436a0a9b4e245d6234dc7596b1e40ba1644fb6f035b2169a5a
SHA512

31a1735ac89701fa92f8713ce1d7b73e6f22130c3f9f8714050f2e870e65498431b8aab42c54965b9f017015c9893010940ea36233a76658b3c221eb423f900e
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOl:YfU/WF6QMauSuiWNi9eNOl0007NZIOl

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2784	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2732	65483353bf8c9791c9c82f8585459160N.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2732-0-0x0000000000A70000-0x0000000000A98000-memory.dmp	upx
behavioral1/files/0x00070000000177da-2.dat	upx
behavioral1/memory/2824-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp	upx
behavioral1/memory/2732-8-0x0000000000A70000-0x0000000000A98000-memory.dmp	upx
behavioral1/memory/2824-10-0x0000000000B90000-0x0000000000BB8000-memory.dmp	upx
behavioral1/memory/2732-11-0x0000000000A70000-0x0000000000A98000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	65483353bf8c9791c9c82f8585459160N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65483353bf8c9791c9c82f8585459160N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2824	2732	65483353bf8c9791c9c82f8585459160N.exe	30
PID 2732 wrote to memory of 2824	2732	65483353bf8c9791c9c82f8585459160N.exe	30
PID 2732 wrote to memory of 2824	2732	65483353bf8c9791c9c82f8585459160N.exe	30
PID 2732 wrote to memory of 2824	2732	65483353bf8c9791c9c82f8585459160N.exe	30
PID 2732 wrote to memory of 2784	2732	65483353bf8c9791c9c82f8585459160N.exe	31
PID 2732 wrote to memory of 2784	2732	65483353bf8c9791c9c82f8585459160N.exe	31
PID 2732 wrote to memory of 2784	2732	65483353bf8c9791c9c82f8585459160N.exe	31
PID 2732 wrote to memory of 2784	2732	65483353bf8c9791c9c82f8585459160N.exe	31

C:\Users\Admin\AppData\Local\Temp\65483353bf8c9791c9c82f8585459160N.exe
"C:\Users\Admin\AppData\Local\Temp\65483353bf8c9791c9c82f8585459160N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2824
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\65483353bf8c9791c9c82f8585459160N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
facbb0c7e90e649d01a800a2a4e38ca8

SHA1
fa95587e62bae0a07c071237e59f0a7005b3eff6

SHA256
911817622c9239c8661f50f835994f86381a2b8bc817fa3bd8897c4cb65efddc

SHA512
534b2d68c4ce2cded1d1dbaad94d9b939e4895f00255e43e8c4d5d62e3216ef112a3644d95ede5b6db187e1e4b30aefcdef0d149014f8ca5ca6a60838f70e1f2

Download Submit
memory/2732-0-0x0000000000A70000-0x0000000000A98000-memory.dmp

Filesize
160KB

Download
memory/2732-5-0x0000000000120000-0x0000000000148000-memory.dmp

Filesize
160KB

Download
memory/2732-8-0x0000000000A70000-0x0000000000A98000-memory.dmp

Filesize
160KB

Download
memory/2732-9-0x0000000000120000-0x0000000000148000-memory.dmp

Filesize
160KB

Download
memory/2732-11-0x0000000000A70000-0x0000000000A98000-memory.dmp

Filesize
160KB

Download
memory/2824-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp

Filesize
160KB

Download
memory/2824-10-0x0000000000B90000-0x0000000000BB8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads