0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cd

General

Target

0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe
Size

135KB
MD5

a250ae6b971bfde739130710a2a41ca0
SHA1

25e5fbbc36ff71c38635cd27b95a0dc902ca1bd4
SHA256

0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cd
SHA512

ffc73e72a52064cc3f1c8695f0bd9dd9713048acc38a5020469f735da9c1c351aa0194e553858935e903a131f1f78199e369b3a2ecd3eec674f87b15991bfb1a
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOIS:YfU/WF6QMauSuiWNi9eNOl0007NZIOj

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3068	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe

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"	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1292-1-0x0000000000310000-0x0000000000338000-memory.dmp	upx
behavioral1/files/0x0008000000016dc7-2.dat	upx
behavioral1/memory/2540-7-0x00000000003C0000-0x00000000003E8000-memory.dmp	upx
behavioral1/memory/2540-9-0x00000000003C0000-0x00000000003E8000-memory.dmp	upx
behavioral1/memory/1292-10-0x0000000000310000-0x0000000000338000-memory.dmp	upx

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	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 2540	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	30
PID 1292 wrote to memory of 2540	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	30
PID 1292 wrote to memory of 2540	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	30
PID 1292 wrote to memory of 2540	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	30
PID 1292 wrote to memory of 3068	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	32
PID 1292 wrote to memory of 3068	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	32
PID 1292 wrote to memory of 3068	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	32
PID 1292 wrote to memory of 3068	1292	0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe	32

C:\Users\Admin\AppData\Local\Temp\0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe
"C:\Users\Admin\AppData\Local\Temp\0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1292
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\0227bd079c9bbd108828bb19b75be7db9c7ebf363d3eb39131949269e46028cdN.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3068

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

Replay Monitor

Loading Replay Monitor...

Downloads

\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
db8cee76d07446b79e8be89699327d6e

SHA1
d2c6dbfb75639e69def6f47e402e94a8b2e2010d

SHA256
4c53ec00b219fcce9e2f83183f1aa0691f64386be0b335c64776dc00f1ac6b5b

SHA512
0ddd7e3863118ea99fe9a2d40f535e61c9195e636885b05093a93eb46ed91c8d250aaeb0614c685022e9a83e6db4e54755afd478bc0b33a13d9f0151928b3178

Download Submit
memory/1292-1-0x0000000000310000-0x0000000000338000-memory.dmp

Filesize
160KB

Download
memory/1292-6-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/1292-8-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/1292-10-0x0000000000310000-0x0000000000338000-memory.dmp

Filesize
160KB

Download
memory/2540-7-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download
memory/2540-9-0x00000000003C0000-0x00000000003E8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads