0899740514338990262feefa8fc6f0ff48825bfd281ede6e1805d9fe54b0bd5b

General

Target

469ac087ef51c5e04fc205adf7a865f0N.exe
Size

134KB
MD5

469ac087ef51c5e04fc205adf7a865f0
SHA1

be1f1adab02ce523767050a4d45ba8d63acd21aa
SHA256

0899740514338990262feefa8fc6f0ff48825bfd281ede6e1805d9fe54b0bd5b
SHA512

84091a3847c5e66033ed0af8e06da5c3787ccd2c97c4efab2594cff4d4139445288df10df961067dea2d78308f3ac65c31f4e885db3be1f299b2399feff0a893
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOW:YfU/WF6QMauSuiWNi9eNOl0007NZIOW

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2844	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1692	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	469ac087ef51c5e04fc205adf7a865f0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016b27-2.dat	upx
behavioral1/memory/2112-1-0x0000000001350000-0x0000000001378000-memory.dmp	upx
behavioral1/memory/1692-7-0x0000000000BB0000-0x0000000000BD8000-memory.dmp	upx
behavioral1/memory/1692-9-0x0000000000BB0000-0x0000000000BD8000-memory.dmp	upx
behavioral1/memory/2112-10-0x0000000001350000-0x0000000001378000-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"	469ac087ef51c5e04fc205adf7a865f0N.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	469ac087ef51c5e04fc205adf7a865f0N.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 2112 wrote to memory of 1692	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	30
PID 2112 wrote to memory of 1692	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	30
PID 2112 wrote to memory of 1692	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	30
PID 2112 wrote to memory of 1692	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	30
PID 2112 wrote to memory of 2844	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	32
PID 2112 wrote to memory of 2844	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	32
PID 2112 wrote to memory of 2844	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	32
PID 2112 wrote to memory of 2844	2112	469ac087ef51c5e04fc205adf7a865f0N.exe	32

C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe
"C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2844

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
15251056eedd6a1afd2846ea31082adf

SHA1
39da6acf616cb4ff53b943626f90366a1e40872c

SHA256
876548832ed9612b6cb46f8bdb047b4bd7c2b29468c8d197c16f41ff406eaa7c

SHA512
b489e1130f34ca036ddb13439ad48ae0e50fbdaace3126d468b9590ebdf5163e4c1b1db3eece2b1e574e8f97fee9448a2d6766ebb1b3e3bd6053ab7bd3a305bf

Download Submit
memory/1692-7-0x0000000000BB0000-0x0000000000BD8000-memory.dmp

Filesize
160KB

Download
memory/1692-9-0x0000000000BB0000-0x0000000000BD8000-memory.dmp

Filesize
160KB

Download
memory/2112-1-0x0000000001350000-0x0000000001378000-memory.dmp

Filesize
160KB

Download
memory/2112-6-0x0000000000BB0000-0x0000000000BD8000-memory.dmp

Filesize
160KB

Download
memory/2112-8-0x0000000000BB0000-0x0000000000BD8000-memory.dmp

Filesize
160KB

Download
memory/2112-10-0x0000000001350000-0x0000000001378000-memory.dmp

Filesize
160KB

Download
memory/2112-11-0x0000000000BB0000-0x0000000000BD8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads