5bdc0f75a9f85a09d9e656d5a9b2ddc21022ca78800545662a46b55a6f3e4200

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 20:12

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General

Target

【GM工具】/fmod.dll
Size

159KB
MD5

b8d0cce2ca1cc850c8c6f25a70d855e6
SHA1

e64409d3677b73c1ecb072f07f4630f50096e013
SHA256

1e08da161cf78746304a834973971ee47a24817ee4e28df74e3f37dbbb383b22
SHA512

a272920c38538e3e080b62bfe9e6c28191fd6d079d1af6861d56aa7197a408dce61609f8f2c280a1092a50a9bc36090ffae5d54bc36d20efb560c485d7123494
SSDEEP

3072:IzyGFME1oz6ZnQoZGSSVtaCJzyQdRubKeuWW6VRjy3vwH5W1UEkV+hGRi0VaR/7n:IzyGH186VVZMtTddYG5X8DEqpsH2srJ

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral9/memory/2300-2-0x0000000010000000-0x0000000010096000-memory.dmp	upx
behavioral9/memory/2300-1-0x0000000010000000-0x0000000010096000-memory.dmp	upx
behavioral9/memory/2300-0-0x0000000010000000-0x0000000010096000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2104	2300	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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2380 wrote to memory of 2300	2380	rundll32.exe	31
PID 2300 wrote to memory of 2104	2300	rundll32.exe	32
PID 2300 wrote to memory of 2104	2300	rundll32.exe	32
PID 2300 wrote to memory of 2104	2300	rundll32.exe	32
PID 2300 wrote to memory of 2104	2300	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\fmod.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\【GM工具】\fmod.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 240
    3⤵
    - Program crash
    PID:2104

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/2300-2-0x0000000010000000-0x0000000010096000-memory.dmp

Filesize
600KB

Download
memory/2300-1-0x0000000010000000-0x0000000010096000-memory.dmp

Filesize
600KB

Download
memory/2300-0-0x0000000010000000-0x0000000010096000-memory.dmp

Filesize
600KB

Download