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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	wuauclt.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1972-0-0x0000000000C40000-0x0000000000C68000-memory.dmp	upx
behavioral2/files/0x00080000000234a9-3.dat	upx
behavioral2/memory/3932-5-0x00000000005C0000-0x00000000005E8000-memory.dmp	upx
behavioral2/memory/1972-6-0x0000000000C40000-0x0000000000C68000-memory.dmp	upx
behavioral2/memory/3932-7-0x00000000005C0000-0x00000000005E8000-memory.dmp	upx
behavioral2/memory/1972-8-0x0000000000C40000-0x0000000000C68000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 3932	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	84
PID 1972 wrote to memory of 3932	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	84
PID 1972 wrote to memory of 3932	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	84
PID 1972 wrote to memory of 1684	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	97
PID 1972 wrote to memory of 1684	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	97
PID 1972 wrote to memory of 1684	1972	8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe	97

C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe
"C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1972
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3932
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\8718db6db75b3d30c76dbe0e15dede1702ec0c70bac6951116760716379bf694.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1684

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

Query Registry

1

T1012

System Information Discovery

2

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
2df59334b8007c6b8131faa520f9fb21

SHA1
109b0f701a61dfed08e082d9b691d28ea7ea863c

SHA256
4b0da3296b0644e44adc78492bc510e0c8bc97fa908dadc8e72a5cb676410849

SHA512
9505cc63cba5b89a9b246d2ca098e810dea2b05db50e7f86a0a9f5864c5e5a3a8749974bc792135be0ef1c523b96937926856012a61d2d7fdfbb403ee5ba4dc3

Download Submit
memory/1972-0-0x0000000000C40000-0x0000000000C68000-memory.dmp

Filesize
160KB

Download
memory/1972-6-0x0000000000C40000-0x0000000000C68000-memory.dmp

Filesize
160KB

Download
memory/1972-8-0x0000000000C40000-0x0000000000C68000-memory.dmp

Filesize
160KB

Download
memory/3932-5-0x00000000005C0000-0x00000000005E8000-memory.dmp

Filesize
160KB

Download
memory/3932-7-0x00000000005C0000-0x00000000005E8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads