0899740514338990262feefa8fc6f0ff48825bfd281ede6e1805d9fe54b0bd5b

Analysis

max time kernel
99s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 16:25

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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

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	469ac087ef51c5e04fc205adf7a865f0N.exe

Executes dropped EXE 1 IoCs

pid	Process
1520	wuauclt.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2888-0-0x0000000000470000-0x0000000000498000-memory.dmp	upx
behavioral2/files/0x00070000000234a5-3.dat	upx
behavioral2/memory/1520-4-0x0000000000E90000-0x0000000000EB8000-memory.dmp	upx
behavioral2/memory/2888-6-0x0000000000470000-0x0000000000498000-memory.dmp	upx
behavioral2/memory/1520-7-0x0000000000E90000-0x0000000000EB8000-memory.dmp	upx
behavioral2/memory/2888-8-0x0000000000470000-0x0000000000498000-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
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	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 6 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 1520	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	84
PID 2888 wrote to memory of 1520	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	84
PID 2888 wrote to memory of 1520	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	84
PID 2888 wrote to memory of 2916	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	103
PID 2888 wrote to memory of 2916	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	103
PID 2888 wrote to memory of 2916	2888	469ac087ef51c5e04fc205adf7a865f0N.exe	103

C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe
"C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1520
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\469ac087ef51c5e04fc205adf7a865f0N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
326a1021f305a60597d4736c27f48ee6

SHA1
957e634423c293995019aa4be33a9892da1dd032

SHA256
4bd678396f578bb6db2b095bc92c474ce86aeacce6c7b4468fd3c018a185f718

SHA512
18ddf1c5148b5e66e26c90d916af4d4ff36f47de57bf99c36b6658c1bafd6c64339261e8bafcbbc85f139e93e6b9ce238897cacf6d0a9147191bb5195621a087

Download Submit
memory/1520-4-0x0000000000E90000-0x0000000000EB8000-memory.dmp

Filesize
160KB

Download
memory/1520-7-0x0000000000E90000-0x0000000000EB8000-memory.dmp

Filesize
160KB

Download
memory/2888-0-0x0000000000470000-0x0000000000498000-memory.dmp

Filesize
160KB

Download
memory/2888-6-0x0000000000470000-0x0000000000498000-memory.dmp

Filesize
160KB

Download
memory/2888-8-0x0000000000470000-0x0000000000498000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads