f731fb9caa8234ecc6b756acbcc46ff14ca4ec428e63413c0592b90576e2c93c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 18:26

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General

Target

f731fb9caa8234ecc6b756acbcc46ff14ca4ec428e63413c0592b90576e2c93c.dll
Size

496KB
MD5

75a437daf64743e13fa3901d200ca959
SHA1

34b2b88f445e9aad82a5bcb87ee14d4f98ddbe44
SHA256

f731fb9caa8234ecc6b756acbcc46ff14ca4ec428e63413c0592b90576e2c93c
SHA512

e3af9db14ada39eaec20c6f93664e35ed13befe96d9826e345928e1b5b08933aa4a2f300f6cbe63a42cb9bccb5d13a85f6016db006d2eea453d6bbf7d8dbccdb
SSDEEP

6144:4jZFA7n1wlgCoFKJMMZUqiR7PRQ4itQWNY9kXDUVZcl:0Ft4KOM+qiR7PRQ4iWWNYC2Z

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4140-1-0x0000000001610000-0x000000000161B000-memory.dmp	upx
behavioral2/memory/4140-0-0x0000000001610000-0x000000000161B000-memory.dmp	upx
behavioral2/memory/4140-2-0x0000000001610000-0x000000000161B000-memory.dmp	upx
behavioral2/memory/4140-3-0x0000000001610000-0x000000000161B000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 4140	3956	rundll32.exe	84
PID 3956 wrote to memory of 4140	3956	rundll32.exe	84
PID 3956 wrote to memory of 4140	3956	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f731fb9caa8234ecc6b756acbcc46ff14ca4ec428e63413c0592b90576e2c93c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f731fb9caa8234ecc6b756acbcc46ff14ca4ec428e63413c0592b90576e2c93c.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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Downloads

memory/4140-1-0x0000000001610000-0x000000000161B000-memory.dmp

Filesize
44KB

Download
memory/4140-0-0x0000000001610000-0x000000000161B000-memory.dmp

Filesize
44KB

Download
memory/4140-2-0x0000000001610000-0x000000000161B000-memory.dmp

Filesize
44KB

Download
memory/4140-3-0x0000000001610000-0x000000000161B000-memory.dmp

Filesize
44KB

Download