bdbefbe7d2fc2291193b22107e2ab30cfea59b700abb497161cdca24458acc16

Analysis

max time kernel
142s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 22:02

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General

Target

145c4f18fca937a1671ba501fac811d3.exe
Size

33KB
MD5

145c4f18fca937a1671ba501fac811d3
SHA1

3c2bda88e40f46266caa5cf3916203f294849fbe
SHA256

bdbefbe7d2fc2291193b22107e2ab30cfea59b700abb497161cdca24458acc16
SHA512

da414d77958d471f0c80f0519f45e3cf235b31bbf20d2bfeb8ef93b135e9db753b1912924f8afc5ae325c2fbe900ddeb626f3257cf6d1cdfd3e8519c66e725d0
SSDEEP

768:VcBxHptDnQLKCbC4Ys5sHCsPMasRCHVMZnDR4P6OIDTkZTv5YIfi:Vmxrb2KCOVZi2MvDR6qTkZrKYi

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3044	taskmngr32.exe

Loads dropped DLL 2 IoCs

pid	Process
2076	145c4f18fca937a1671ba501fac811d3.exe
2076	145c4f18fca937a1671ba501fac811d3.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2076-1-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/2076-4-0x0000000000730000-0x0000000000763000-memory.dmp	upx
behavioral1/files/0x0009000000012262-3.dat	upx
behavioral1/memory/3044-13-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/2076-11-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral1/memory/3044-15-0x0000000000400000-0x0000000000433000-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	145c4f18fca937a1671ba501fac811d3.exe
File opened for modification	C:\Windows\SysWOW64\taskmngr32.exe	145c4f18fca937a1671ba501fac811d3.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 2076 wrote to memory of 3044	2076	145c4f18fca937a1671ba501fac811d3.exe	18
PID 2076 wrote to memory of 3044	2076	145c4f18fca937a1671ba501fac811d3.exe	18
PID 2076 wrote to memory of 3044	2076	145c4f18fca937a1671ba501fac811d3.exe	18
PID 2076 wrote to memory of 3044	2076	145c4f18fca937a1671ba501fac811d3.exe	18

C:\Users\Admin\AppData\Local\Temp\145c4f18fca937a1671ba501fac811d3.exe
"C:\Users\Admin\AppData\Local\Temp\145c4f18fca937a1671ba501fac811d3.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\taskmngr32.exe
  "C:\Windows\system32\taskmngr32.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:3044

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

\Windows\SysWOW64\taskmngr32.exe

Filesize
33KB

MD5
145c4f18fca937a1671ba501fac811d3

SHA1
3c2bda88e40f46266caa5cf3916203f294849fbe

SHA256
bdbefbe7d2fc2291193b22107e2ab30cfea59b700abb497161cdca24458acc16

SHA512
da414d77958d471f0c80f0519f45e3cf235b31bbf20d2bfeb8ef93b135e9db753b1912924f8afc5ae325c2fbe900ddeb626f3257cf6d1cdfd3e8519c66e725d0

Download Submit
memory/2076-1-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2076-4-0x0000000000730000-0x0000000000763000-memory.dmp

Filesize
204KB

Download
memory/2076-12-0x0000000000730000-0x0000000000763000-memory.dmp

Filesize
204KB

Download
memory/2076-11-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2076-16-0x0000000000730000-0x0000000000763000-memory.dmp

Filesize
204KB

Download
memory/3044-13-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/3044-15-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads