1c12ecb57f113a18084e8034ff757adf3dfecb8e06b954ac08dd3f0ddd533591

General

Target

09f8456cc2de8bb7f2e68268788b8b60N.exe
Size

135KB
MD5

09f8456cc2de8bb7f2e68268788b8b60
SHA1

73b7c211c60b3d61157251e2b52016a3319cba1b
SHA256

1c12ecb57f113a18084e8034ff757adf3dfecb8e06b954ac08dd3f0ddd533591
SHA512

41cb8e80503aac4ac4611ab8addd6f31cf0465d81b2de61d455869ce2b74a9ad66b81c9a7cbe3b91960b87a070b5d059c7107fd5f68dafe5b855af6dc1c30a1a
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOq:YfU/WF6QMauSuiWNi9eNOl0007NZIOq

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2832	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2564	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
588	09f8456cc2de8bb7f2e68268788b8b60N.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/588-0-0x0000000001010000-0x0000000001038000-memory.dmp	upx
behavioral1/files/0x0008000000016ed2-6.dat	upx
behavioral1/memory/2564-7-0x0000000000F30000-0x0000000000F58000-memory.dmp	upx
behavioral1/memory/588-8-0x0000000001010000-0x0000000001038000-memory.dmp	upx
behavioral1/memory/2564-10-0x0000000000F30000-0x0000000000F58000-memory.dmp	upx
behavioral1/memory/588-11-0x0000000001010000-0x0000000001038000-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"	09f8456cc2de8bb7f2e68268788b8b60N.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	09f8456cc2de8bb7f2e68268788b8b60N.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 588 wrote to memory of 2564	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	31
PID 588 wrote to memory of 2564	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	31
PID 588 wrote to memory of 2564	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	31
PID 588 wrote to memory of 2564	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	31
PID 588 wrote to memory of 2832	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	32
PID 588 wrote to memory of 2832	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	32
PID 588 wrote to memory of 2832	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	32
PID 588 wrote to memory of 2832	588	09f8456cc2de8bb7f2e68268788b8b60N.exe	32

C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe
"C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:588
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2564
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2832

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 Information Discovery

1

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
b89c9f44af8b87399d1883717fe25c44

SHA1
a202d4730b8c943e87dfc2c4bcbc1696af9e3f19

SHA256
02d553912588809f9cfc9b7628f3ab96f5737e1b13afce050f990f531db4f2cb

SHA512
0d9da51d49ec4ac84cc7daf8c07d9c5494ffc5a09adbdb7c7d225a3d52229c71569767b533d67cde705c2af781af2e2fdf4e492a0d329e409940a85ba69ef889

Download Submit
memory/588-0-0x0000000001010000-0x0000000001038000-memory.dmp

Filesize
160KB

Download
memory/588-5-0x0000000000F30000-0x0000000000F58000-memory.dmp

Filesize
160KB

Download
memory/588-8-0x0000000001010000-0x0000000001038000-memory.dmp

Filesize
160KB

Download
memory/588-9-0x0000000000F30000-0x0000000000F58000-memory.dmp

Filesize
160KB

Download
memory/588-11-0x0000000001010000-0x0000000001038000-memory.dmp

Filesize
160KB

Download
memory/2564-7-0x0000000000F30000-0x0000000000F58000-memory.dmp

Filesize
160KB

Download
memory/2564-10-0x0000000000F30000-0x0000000000F58000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads