6a0f3730fc5f5588aaea8e2a2b6c878405c90d23d8bdc1683262d09a458509e1

General

Target

6e5416a8514789535124d5f245236de0N.exe
Size

134KB
MD5

6e5416a8514789535124d5f245236de0
SHA1

345075bdb62e4e44e6c0a9c96150e2beac14c5a6
SHA256

6a0f3730fc5f5588aaea8e2a2b6c878405c90d23d8bdc1683262d09a458509e1
SHA512

3bf8c5b03db4fecbb0e2f1f1aa0e50159aa3d383e922ef9cacc81b05b50a80d4476649bc7b69058f91e6b02477cefe1546c4b0f39e82264129a8e8587261a9a1
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOz:YfU/WF6QMauSuiWNi9eNOl0007NZIOz

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2272	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2668	6e5416a8514789535124d5f245236de0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2668-0-0x0000000000050000-0x0000000000078000-memory.dmp	upx
behavioral1/files/0x0008000000016dc7-2.dat	upx
behavioral1/memory/2764-7-0x0000000000010000-0x0000000000038000-memory.dmp	upx
behavioral1/memory/2668-8-0x0000000000050000-0x0000000000078000-memory.dmp	upx
behavioral1/memory/2668-10-0x0000000000050000-0x0000000000078000-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"	6e5416a8514789535124d5f245236de0N.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

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	6e5416a8514789535124d5f245236de0N.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 2668 wrote to memory of 2764	2668	6e5416a8514789535124d5f245236de0N.exe	31
PID 2668 wrote to memory of 2764	2668	6e5416a8514789535124d5f245236de0N.exe	31
PID 2668 wrote to memory of 2764	2668	6e5416a8514789535124d5f245236de0N.exe	31
PID 2668 wrote to memory of 2764	2668	6e5416a8514789535124d5f245236de0N.exe	31
PID 2668 wrote to memory of 2272	2668	6e5416a8514789535124d5f245236de0N.exe	32
PID 2668 wrote to memory of 2272	2668	6e5416a8514789535124d5f245236de0N.exe	32
PID 2668 wrote to memory of 2272	2668	6e5416a8514789535124d5f245236de0N.exe	32
PID 2668 wrote to memory of 2272	2668	6e5416a8514789535124d5f245236de0N.exe	32

C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe
"C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6e5416a8514789535124d5f245236de0N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2272

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 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
134KB

MD5
f7d4e6fa3845a996adc734ba87305949

SHA1
8e6d2a1c3a82a36348cb8c34bc1954e5bf3249a2

SHA256
6838f1536068040aab4eb97bcbe0547a1e31b614fb9c941ac46e7a5fc1e85f0c

SHA512
92d282eb7dc5576c6d589a84ff88cee677ca37ff6fdaec0cc79997436d8638391528b49f91c3a06373a8054514b8ee5c09a8ae0528312be4eaeca6c6b35cd5be

Download Submit
memory/2668-0-0x0000000000050000-0x0000000000078000-memory.dmp

Filesize
160KB

Download
memory/2668-5-0x0000000000170000-0x0000000000198000-memory.dmp

Filesize
160KB

Download
memory/2668-8-0x0000000000050000-0x0000000000078000-memory.dmp

Filesize
160KB

Download
memory/2668-9-0x0000000000170000-0x0000000000198000-memory.dmp

Filesize
160KB

Download
memory/2668-10-0x0000000000050000-0x0000000000078000-memory.dmp

Filesize
160KB

Download
memory/2764-7-0x0000000000010000-0x0000000000038000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads