862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd

General

Target

862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe
Size

134KB
MD5

f07b59c3cee9c9bc4722d4a64731840b
SHA1

3c3e02f8138f3360089a3ff80673c7d3fd939796
SHA256

862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd
SHA512

5e8edc14f84ee1562724b090f55525643160c9f31c36ae1dc7a939f5f41170ea8a4b238f094b198435bfc97aad424bca8d4053a7a491ba37e3568753551890a2
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOZ:YfU/WF6QMauSuiWNi9eNOl0007NZIOZ

Score

9^/10

persistence upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3008-0-0x0000000000E30000-0x0000000000E58000-memory.dmp	UPX
\ProgramData\Update\wuauclt.exe	UPX
behavioral1/memory/2084-7-0x0000000000870000-0x0000000000898000-memory.dmp	UPX
behavioral1/memory/3008-8-0x0000000000E30000-0x0000000000E58000-memory.dmp	UPX
behavioral1/memory/3008-10-0x0000000000E30000-0x0000000000E58000-memory.dmp	UPX

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2672 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

wuauclt.exe

pid process

2084 wuauclt.exe
Loads dropped DLL 1 IoCs

Processes:

862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

pid process

3008 862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

pid	process
2672	cmd.exe

pid	process
2084	wuauclt.exe

pid	process
3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3008-0-0x0000000000E30000-0x0000000000E58000-memory.dmp	upx
\ProgramData\Update\wuauclt.exe	upx
behavioral1/memory/2084-7-0x0000000000870000-0x0000000000898000-memory.dmp	upx
behavioral1/memory/3008-8-0x0000000000E30000-0x0000000000E58000-memory.dmp	upx
behavioral1/memory/3008-10-0x0000000000E30000-0x0000000000E58000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe

description	pid	process	target process
PID 3008 wrote to memory of 2084	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	wuauclt.exe
PID 3008 wrote to memory of 2084	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	wuauclt.exe
PID 3008 wrote to memory of 2084	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	wuauclt.exe
PID 3008 wrote to memory of 2084	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	wuauclt.exe
PID 3008 wrote to memory of 2672	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	cmd.exe
PID 3008 wrote to memory of 2672	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	cmd.exe
PID 3008 wrote to memory of 2672	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	cmd.exe
PID 3008 wrote to memory of 2672	3008	862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe
"C:\Users\Admin\AppData\Local\Temp\862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3008

C:\ProgramData\Update\wuauclt.exe
"C:\ProgramData\Update\wuauclt.exe" /run
2⤵
- Executes dropped EXE
PID:2084

C:\windows\SysWOW64\cmd.exe
"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\862437f0dbc9e4b511b1573caaf7dff5045232aa9fc0e226258bb0768200b4dd.exe" >> NUL
2⤵
- Deletes itself
PID:2672

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

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
92a7b1af8d4dc7fddba07a51a08eac02

SHA1
6d1d670f7b5b4196f784a8f1623ac215e2e57c84

SHA256
7120680290d88985fbe3b40a4b8fb34bb02077d79dd922b4c8b6e6c4d0707f36

SHA512
fef050992a91766f2976018aeaac27dd69ee58795165b62dbe108892d16e4f6e09c2c08a7e50d6d644d258d99c63f8ce9ffda0800be6b44fe86327ed20b42e90

Download Submit
memory/2084-7-0x0000000000870000-0x0000000000898000-memory.dmp

Filesize
160KB

Download
memory/3008-0-0x0000000000E30000-0x0000000000E58000-memory.dmp

Filesize
160KB

Download
memory/3008-5-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/3008-8-0x0000000000E30000-0x0000000000E58000-memory.dmp

Filesize
160KB

Download
memory/3008-9-0x0000000000140000-0x0000000000168000-memory.dmp

Filesize
160KB

Download
memory/3008-10-0x0000000000E30000-0x0000000000E58000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads