8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694

General

Target

8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe
Size

135KB
MD5

234c42cd600b79f965922e16c5abb110
SHA1

93eaecfe145d6b7d3ec1e93bee606d1f40dd953f
SHA256

8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694
SHA512

51e648032c49349c80e031e6b533bafad42a6587603e31bc102e466c9d7e2030fcfb5252e20b2c5a5620f5e49240a06fdf0c3cace9b4842b2552c8964197d6f3
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOjq:YfU/WF6QMauSuiWNi9eNOl0007NZIOjq

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2636	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1624-0-0x0000000000FB0000-0x0000000000FD8000-memory.dmp	upx
behavioral1/memory/1624-4-0x00000000000F0000-0x0000000000118000-memory.dmp	upx
behavioral1/files/0x0009000000016d60-6.dat	upx
behavioral1/memory/1624-7-0x0000000000FB0000-0x0000000000FD8000-memory.dmp	upx
behavioral1/memory/2320-8-0x0000000001020000-0x0000000001048000-memory.dmp	upx
behavioral1/memory/1624-9-0x0000000000FB0000-0x0000000000FD8000-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"	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.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	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.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 1624 wrote to memory of 2320	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	30
PID 1624 wrote to memory of 2320	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	30
PID 1624 wrote to memory of 2320	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	30
PID 1624 wrote to memory of 2320	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	30
PID 1624 wrote to memory of 2636	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	31
PID 1624 wrote to memory of 2636	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	31
PID 1624 wrote to memory of 2636	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	31
PID 1624 wrote to memory of 2636	1624	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	31

C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe
"C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2636

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

C:\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
a9389bac0c93e5c03be74359372afe4d

SHA1
3ddd01f1a75f9fcc5287278c296081517c71d030

SHA256
335e9498e7391f4823137213c196676c243a55b0552391669b89358d2dcc15db

SHA512
114e120c71b123f49e2195377eca18dc6c89081795cd7508879978ebe64bb5837498df4ade43c4a1442fdd38e6c2f22a5eabdcf81b2847848c77ab5b5f7a9660

Download Submit
memory/1624-0-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/1624-4-0x00000000000F0000-0x0000000000118000-memory.dmp

Filesize
160KB

Download
memory/1624-7-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/1624-9-0x0000000000FB0000-0x0000000000FD8000-memory.dmp

Filesize
160KB

Download
memory/2320-8-0x0000000001020000-0x0000000001048000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads