bf41fd417847d6f3e520d8c77de31830a319a31b9f89d61461a5807ec8ccfc33

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 23:43

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General

Target

bf41fd417847d6f3e520d8c77de31830a319a31b9f89d61461a5807ec8ccfc33.dll
Size

76KB
MD5

8f68110eb888898e07ad445338c50d3a
SHA1

56d175c41c1492bae37b99f313855064731188ef
SHA256

bf41fd417847d6f3e520d8c77de31830a319a31b9f89d61461a5807ec8ccfc33
SHA512

1af50b6e26a7ce751f9b2773ec85b756597712b18f6b98e6c8e72293f1efb1746d066deb8ce0e02950691e517bdb4a6ed9b628656093f925177b857b632c2e90
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZcNXo:c8y93KQjy7G55riF1cMo03ORo

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/2660-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2660-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	2660	WerFault.exe	30

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	2660	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2340 wrote to memory of 2660	2340	rundll32.exe	30
PID 2660 wrote to memory of 2748	2660	rundll32.exe	31
PID 2660 wrote to memory of 2748	2660	rundll32.exe	31
PID 2660 wrote to memory of 2748	2660	rundll32.exe	31
PID 2660 wrote to memory of 2748	2660	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf41fd417847d6f3e520d8c77de31830a319a31b9f89d61461a5807ec8ccfc33.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bf41fd417847d6f3e520d8c77de31830a319a31b9f89d61461a5807ec8ccfc33.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 308
    3⤵
    - Program crash
    PID:2748

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/2660-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2660-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download