40439dd21a51cc6dc9f83008d3f5bc527b2dc06abde2b2b4f0ac44cfd95e0549

Analysis

max time kernel
110s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10/12/2024, 07:40

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General

Target

40439dd21a51cc6dc9f83008d3f5bc527b2dc06abde2b2b4f0ac44cfd95e0549.dll
Size

76KB
MD5

21796600495b195a266e079490bac7e1
SHA1

613375f00696977cd04e0f18b1a88735d4aca06e
SHA256

40439dd21a51cc6dc9f83008d3f5bc527b2dc06abde2b2b4f0ac44cfd95e0549
SHA512

50382d8bebb26b5efa66b3f4b854c06e430425c45a52188c2590838e0ae5bf50da6948c0cb44f129b8421fc9a91e038a3e8842a4a1a0f267ec8b21241280ce94
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zz1:c8y93KQjy7G55riF1cMo03z

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 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1768-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1768-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

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 behavior: EnumeratesProcesses 1 IoCs

pid	Process
1768	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30
PID 2348 wrote to memory of 1768	2348	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\40439dd21a51cc6dc9f83008d3f5bc527b2dc06abde2b2b4f0ac44cfd95e0549.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\40439dd21a51cc6dc9f83008d3f5bc527b2dc06abde2b2b4f0ac44cfd95e0549.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1768

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/1768-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/1768-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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