872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6

Analysis

max time kernel
140s
max time network
149s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02/08/2024, 21:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
Size

38KB
MD5

af0e1bf231901c5eb7c8eefec5efaa3e
SHA1

6b7d4379be9ed5343a7213461a6166ff03f81d6c
SHA256

872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6
SHA512

293f8252bac31e064e82a2c9a9be1c3cb11e3ec578680cb89a5be6bfc471f1835e7f8322cd482a98ed2001c9ee587f9dc6936c1e12cac5b8183a3ea1168b1077
SSDEEP

768:kk/wI9Mer9KrSa6nh8+yT53QKFIQGAJb0WVui1KgduuLAnbcuyD7U+:X/wI9r9KOao8ZT5AKFJB+WVui1DAnou8

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Helloworld\Parameters\ServiceDll = "C:\\Windows\\system32\\259492952.txt"	872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	Helloworld.exe

Loads dropped DLL 4 IoCs

pid	Process
2936	872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
1956	svchost.exe
1956	svchost.exe
2900	Helloworld.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2936-0-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral1/memory/2936-9-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259492952.txt	872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
File created	C:\Windows\SysWOW64\Helloworld.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Helloworld.exe	svchost.exe

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	872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Helloworld.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2900	1956	svchost.exe	32
PID 1956 wrote to memory of 2900	1956	svchost.exe	32
PID 1956 wrote to memory of 2900	1956	svchost.exe	32
PID 1956 wrote to memory of 2900	1956	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
"C:\Users\Admin\AppData\Local\Temp\872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2936

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Helloworld"
1⤵
PID:2148

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Helloworld"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\Helloworld.exe
  C:\Windows\system32\Helloworld.exe "c:\windows\system32\259492952.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\259492952.txt

Filesize
72KB

MD5
c06467ed143ddfcbb01f0550cfac99bb

SHA1
8da840a6383a5b152e9ed72c1a1cd8a1ed774264

SHA256
7315035a7e4b361b9dc7f60862aa82544e454fb525f533d4739bf5f48d4e12ca

SHA512
b2e7b029626ad063a5a94607cff953d98b807b3c2ab258ed20fc6ddf8a65932b8c98f6adbe98bddf80d4bc53820e831c3709b66fcb9390579409e1ba99365788

Download Submit
\Windows\SysWOW64\Helloworld.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2936-0-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2936-9-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download