650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9

General

Target

650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe
Size

135KB
MD5

90d6d463d9e18cbb0a5b429f9b6c3b60
SHA1

66b329e1f420f8c5d323c02de1c9961cab02bede
SHA256

650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9
SHA512

bec47baa1c66c84c3c7bb0252aca9794bcc7fba6fadbc77876a850318aefbdd85a081ccf031a2d10e283068a5aae250d1343a7f6dcf0334f53dcef661ed5e2cb
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOt:YfU/WF6QMauSuiWNi9eNOl0007NZIOt

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2988 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

wuauclt.exe

pid process

2064 wuauclt.exe
Loads dropped DLL 1 IoCs

Processes:

650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe

pid process

2420 650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe

pid	process
2988	cmd.exe

pid	process
2064	wuauclt.exe

pid	process
2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.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

Processes:

resource	yara_rule
behavioral1/memory/2420-1-0x0000000000340000-0x0000000000368000-memory.dmp	upx
C:\ProgramData\Update\wuauclt.exe	upx
behavioral1/memory/2064-7-0x00000000010C0000-0x00000000010E8000-memory.dmp	upx
behavioral1/memory/2064-9-0x00000000010C0000-0x00000000010E8000-memory.dmp	upx
behavioral1/memory/2420-10-0x0000000000340000-0x0000000000368000-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

Processes:

cmd.exe650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exewuauclt.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe

description	pid	process	target process
PID 2420 wrote to memory of 2064	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	wuauclt.exe
PID 2420 wrote to memory of 2064	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	wuauclt.exe
PID 2420 wrote to memory of 2064	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	wuauclt.exe
PID 2420 wrote to memory of 2064	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	wuauclt.exe
PID 2420 wrote to memory of 2988	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	cmd.exe
PID 2420 wrote to memory of 2988	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	cmd.exe
PID 2420 wrote to memory of 2988	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	cmd.exe
PID 2420 wrote to memory of 2988	2420	650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe
"C:\Users\Admin\AppData\Local\Temp\650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\650001cea83a431c682825299faf23e849df7dd8fe66079a57cdad6ea990cad9N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2988

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

C:\ProgramData\Update\wuauclt.exe

Filesize
135KB

MD5
a7829169918c903ec6e5b94e8384d146

SHA1
88c2616881de067e3a9d96b0218acc534b23808a

SHA256
0a58b63ded942f2f720b2053bb5a04919487a1bb718f7ed5db85fabe7997fc2e

SHA512
1da57220785808fde9d302cdf97e0851a274683679b731ebb994e0d2602e6b2fccbec5de8b4c6e49716954024a5ebc015278c9199c833fc6ed9adb503739cf2f

Download Submit
memory/2064-7-0x00000000010C0000-0x00000000010E8000-memory.dmp

Filesize
160KB

Download
memory/2064-9-0x00000000010C0000-0x00000000010E8000-memory.dmp

Filesize
160KB

Download
memory/2420-1-0x0000000000340000-0x0000000000368000-memory.dmp

Filesize
160KB

Download
memory/2420-6-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/2420-8-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/2420-10-0x0000000000340000-0x0000000000368000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads