9e7a54ceacc92fe46819a48e0e2a5c0fc51c2f5a4d0ce6ce9db8ad992d3b8a48

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:14

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General

Target

zlibwapi.dll
Size

42KB
MD5

e70de782d9957b1fccb47631d82d77aa
SHA1

19e4b4db441f6a9c4e5a936a71b81fc420a29fd9
SHA256

b7f84f70ad85eba699b80b55eca12bffaf9042b5ab3c517ecb507e3d5ffa064b
SHA512

d3649df3b53e41623bb81777f28f1b32cd61b6ffb45c9cd45f30ceec035232b724abaa6c4ccd2c0d61c83741d177831576c16a245d802a0ba2d72dddd533fd63
SSDEEP

768:5j6KtryQh53Y3bbTfz5VQamtVmKPvOWir0oYrycL83t0Bj6s5:5jX5AbB+aSJPUr0R2cQ9+5

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral11/memory/2676-0-0x0000000010000000-0x0000000010018000-memory.dmp	upx
behavioral11/memory/2676-2-0x0000000010000000-0x0000000010018000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2768	2676	WerFault.exe	31

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 11 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2668 wrote to memory of 2676	2668	rundll32.exe	31
PID 2676 wrote to memory of 2768	2676	rundll32.exe	32
PID 2676 wrote to memory of 2768	2676	rundll32.exe	32
PID 2676 wrote to memory of 2768	2676	rundll32.exe	32
PID 2676 wrote to memory of 2768	2676	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlibwapi.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlibwapi.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 224
    3⤵
    - Program crash
    PID:2768

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/2676-0-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/2676-2-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download