392e0fb3d1a2f9fa9f0f495c7433508c103d1149061a8f18e2d3c05ab3fdd76d

Analysis

max time kernel
170s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 22:31

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General

Target

1e8617c474f50fca963bb2927e57515b.exe
Size

155KB
MD5

1e8617c474f50fca963bb2927e57515b
SHA1

c1056691820a1d343798d2a2b15a27ac8e7cd6eb
SHA256

392e0fb3d1a2f9fa9f0f495c7433508c103d1149061a8f18e2d3c05ab3fdd76d
SHA512

4f76236a5bf9bf33ab1d6c07d708a89f9d9ee330f817f838bc0619009bba4c851ae6f5c691ba9f0f205e5b46a5fa36241097f6099075c1d58e0cc81b6367b75c
SSDEEP

3072:H+bnHkQocN6sXuUowZIilfPZ8hFeDy4u47hvQJWVnwRSRvzdtDULTf:Ski1/ZbfwF1ChoJo3RxpU

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3484	server.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4032-0-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral2/files/0x0009000000023137-5.dat	upx
behavioral2/memory/4032-8-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral2/memory/3484-6-0x0000000000400000-0x000000000046A000-memory.dmp	upx
behavioral2/memory/3484-9-0x0000000000400000-0x000000000046A000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\server.exe	1e8617c474f50fca963bb2927e57515b.exe
File created	C:\Windows\SysWOW64\server.exe	1e8617c474f50fca963bb2927e57515b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\appget.ini	1e8617c474f50fca963bb2927e57515b.exe
File created	C:\WINDOWS\appgets.ini	server.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 5032	4032	1e8617c474f50fca963bb2927e57515b.exe	92
PID 4032 wrote to memory of 5032	4032	1e8617c474f50fca963bb2927e57515b.exe	92
PID 4032 wrote to memory of 5032	4032	1e8617c474f50fca963bb2927e57515b.exe	92
PID 5032 wrote to memory of 3484	5032	cmd.exe	94
PID 5032 wrote to memory of 3484	5032	cmd.exe	94
PID 5032 wrote to memory of 3484	5032	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\1e8617c474f50fca963bb2927e57515b.exe
"C:\Users\Admin\AppData\Local\Temp\1e8617c474f50fca963bb2927e57515b.exe"
1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\WINDOWS\system32\server.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5032
- - C:\WINDOWS\SysWOW64\server.exe
    C:\WINDOWS\system32\server.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\WINDOWS\SysWOW64\server.exe

Filesize
155KB

MD5
1e8617c474f50fca963bb2927e57515b

SHA1
c1056691820a1d343798d2a2b15a27ac8e7cd6eb

SHA256
392e0fb3d1a2f9fa9f0f495c7433508c103d1149061a8f18e2d3c05ab3fdd76d

SHA512
4f76236a5bf9bf33ab1d6c07d708a89f9d9ee330f817f838bc0619009bba4c851ae6f5c691ba9f0f205e5b46a5fa36241097f6099075c1d58e0cc81b6367b75c

Download Submit
memory/3484-7-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/3484-6-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3484-9-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4032-0-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4032-1-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/4032-8-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download