77ce5526a94a8854774e7964e79614f3c1bf33dd0fe2b1dda73b39a8b3380efc

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/01/2025, 01:14

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General

Target

77ce5526a94a8854774e7964e79614f3c1bf33dd0fe2b1dda73b39a8b3380efcN.dll
Size

76KB
MD5

191949a53a43bc391860ab7534bcfe50
SHA1

257108984150f118715952388f0527040b3149f5
SHA256

77ce5526a94a8854774e7964e79614f3c1bf33dd0fe2b1dda73b39a8b3380efc
SHA512

15f16f6027aa80d255ff697276f1b1fbbe66786cb11b2b97293910a8d4dc8edfea84966cf97f6530dca0676c21912656c3104f8782b19e76e7260a30331d6e90
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZzevsMg:c8y93KQjy7G55riF1cMo03hekMg

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 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2776-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2776-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2776-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2776-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2776-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2780	2776	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	2776	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2716 wrote to memory of 2776	2716	rundll32.exe	30
PID 2776 wrote to memory of 2780	2776	rundll32.exe	31
PID 2776 wrote to memory of 2780	2776	rundll32.exe	31
PID 2776 wrote to memory of 2780	2776	rundll32.exe	31
PID 2776 wrote to memory of 2780	2776	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\77ce5526a94a8854774e7964e79614f3c1bf33dd0fe2b1dda73b39a8b3380efcN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\77ce5526a94a8854774e7964e79614f3c1bf33dd0fe2b1dda73b39a8b3380efcN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 324
    3⤵
    - Program crash
    PID:2780

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/2776-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2776-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2776-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2776-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2776-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download