8dc945fb22004202a2135696f071a9f242cc4d1185a6e5652de46d3e00ddb824

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 13:12

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General

Target

20d521c4f349238b69f89b22782aa451.exe
Size

33KB
MD5

20d521c4f349238b69f89b22782aa451
SHA1

c2fd4c7cf07e55e3fde5489e53c67c56ece06bd0
SHA256

8dc945fb22004202a2135696f071a9f242cc4d1185a6e5652de46d3e00ddb824
SHA512

35a4a0b0d02bcee4caf28cd85595bbea4c8dfe21c831ebfc34b3db2bd8fcc3b37cb3e6561829b1ddc8267eeb42ea5971cb279aa24f833bd66c3d8cf087c4ab75
SSDEEP

768:Vcx9urLky4oRaJmnjaad4ATyfBXGvUYGMr2FNbuSK1TLNQKhUJb+M:VnrI6aJYjaa+ATypWsPpud1Hhg+

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1288	taskmngr32.exe

Loads dropped DLL 2 IoCs

pid	Process
2532	20d521c4f349238b69f89b22782aa451.exe
2532	20d521c4f349238b69f89b22782aa451.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1288-12-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/files/0x000c00000001224c-11.dat	upx
behavioral1/memory/2532-4-0x0000000002AA0000-0x0000000002AD3000-memory.dmp	upx
behavioral1/memory/2532-1-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/1288-13-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/1288-14-0x0000000000400000-0x0000000000433000-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\Task Manager Win32 = "C:\\Windows\\SysWOW64\\taskmngr32.exe"	taskmngr32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\taskmngr32.exe	20d521c4f349238b69f89b22782aa451.exe
File opened for modification	C:\Windows\SysWOW64\taskmngr32.exe	20d521c4f349238b69f89b22782aa451.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 1288	2532	20d521c4f349238b69f89b22782aa451.exe	14
PID 2532 wrote to memory of 1288	2532	20d521c4f349238b69f89b22782aa451.exe	14
PID 2532 wrote to memory of 1288	2532	20d521c4f349238b69f89b22782aa451.exe	14
PID 2532 wrote to memory of 1288	2532	20d521c4f349238b69f89b22782aa451.exe	14

C:\Windows\SysWOW64\taskmngr32.exe
"C:\Windows\system32\taskmngr32.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1288

C:\Users\Admin\AppData\Local\Temp\20d521c4f349238b69f89b22782aa451.exe
"C:\Users\Admin\AppData\Local\Temp\20d521c4f349238b69f89b22782aa451.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2532

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

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\taskmngr32.exe

Filesize
33KB

MD5
20d521c4f349238b69f89b22782aa451

SHA1
c2fd4c7cf07e55e3fde5489e53c67c56ece06bd0

SHA256
8dc945fb22004202a2135696f071a9f242cc4d1185a6e5652de46d3e00ddb824

SHA512
35a4a0b0d02bcee4caf28cd85595bbea4c8dfe21c831ebfc34b3db2bd8fcc3b37cb3e6561829b1ddc8267eeb42ea5971cb279aa24f833bd66c3d8cf087c4ab75

Download Submit
memory/1288-12-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1288-13-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1288-14-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2532-4-0x0000000002AA0000-0x0000000002AD3000-memory.dmp

Filesize
204KB

Download
memory/2532-1-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads