37e1d41e8a7c463e721cc294f2c5413ad750a81be4aa4fa982673c596c91f567

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/10/2024, 20:46

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General

Target

Unzipper.dll
Size

11KB
MD5

cfd39c43a7cd8b92fd003a112dd37d0f
SHA1

27a5895045755be9dc88fb9845d3f62a2d883906
SHA256

0d82d5119894ffa028041c07b11a0a6a787612407325b2d7cabb4d58ec5e94f4
SHA512

e2e002d0301e762f342b71fe63e0917dbd320eb388fb323b5881140af1e6b39d6a1a31c2d474c61357286d36a973edc453f9912ec670122c89f719ebeba3da61
SSDEEP

192:Cm+SHL24GgPoby3NRUog/O/gjho2aK3Mlg7Q8epu4NQjHRlVD6:D+uk6omLgjraKsS6uZlVm

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral13/memory/2684-1-0x0000000065E80000-0x0000000065E8F000-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 7 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30
PID 2540 wrote to memory of 2684	2540	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Unzipper.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Unzipper.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684

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/2684-1-0x0000000065E80000-0x0000000065E8F000-memory.dmp

Filesize
60KB

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memory/2684-0-0x0000000065E80000-0x0000000065E8F000-memory.dmp

Filesize
60KB

Download