f3e73ca804d19ae1bebabc157d50f5e6b7818ae27a5c5b0876e3bd5079c601fe

Analysis

max time kernel
94s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/01/2025, 23:55

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General

Target

f3e73ca804d19ae1bebabc157d50f5e6b7818ae27a5c5b0876e3bd5079c601feN.dll
Size

76KB
MD5

684d997b631e6e8ba4358ce092aa61b0
SHA1

c29c2f639339be9547cf8d559cc9aabeed5867fc
SHA256

f3e73ca804d19ae1bebabc157d50f5e6b7818ae27a5c5b0876e3bd5079c601fe
SHA512

cff2c5b4a4c7542bef9c6ccbf70ea163934a0cfe680329f6aa74fe32a542deb9ffce0fed1da58ced0cd3cd57a98460ebee641cbe4f501a21c0924005fb95c743
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZkHeCKEt6C:c8y93KQjy7G55riF1cMo03iOEt6C

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1200-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1200-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1200-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2076	1200	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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 2348 wrote to memory of 1200	2348	rundll32.exe	31
PID 1200 wrote to memory of 2076	1200	rundll32.exe	32
PID 1200 wrote to memory of 2076	1200	rundll32.exe	32
PID 1200 wrote to memory of 2076	1200	rundll32.exe	32
PID 1200 wrote to memory of 2076	1200	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3e73ca804d19ae1bebabc157d50f5e6b7818ae27a5c5b0876e3bd5079c601feN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f3e73ca804d19ae1bebabc157d50f5e6b7818ae27a5c5b0876e3bd5079c601feN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1200
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 304
    3⤵
    - Program crash
    PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/1200-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1200-1-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1200-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1200-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download