5c3f875b57efbb94e0559da5b5d86a52e21fa05f4cb752dcbe4881b85fe194d6

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 20:16

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General

Target

5c3f875b57efbb94e0559da5b5d86a52e21fa05f4cb752dcbe4881b85fe194d6N.dll
Size

76KB
MD5

d1e44c434f62d163fadabfe85892f040
SHA1

3eb8185c12decb5ad3ee6c82ad28af1fe011d697
SHA256

5c3f875b57efbb94e0559da5b5d86a52e21fa05f4cb752dcbe4881b85fe194d6
SHA512

dab2b6175f3c214d1e92537a4a8d6a9c8c984ff5471fd6929ade37b206336283678fcf3b1a9dd172a502c3598721cc3744c8cc2f9f777f271cc53ccff1e39d13
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZzqPqXER:c8y93KQjy7G55riF1cMo03NS

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/1840-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1840-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1840-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1732	1840	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	1840	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 2692 wrote to memory of 1840	2692	rundll32.exe	30
PID 1840 wrote to memory of 1732	1840	rundll32.exe	31
PID 1840 wrote to memory of 1732	1840	rundll32.exe	31
PID 1840 wrote to memory of 1732	1840	rundll32.exe	31
PID 1840 wrote to memory of 1732	1840	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5c3f875b57efbb94e0559da5b5d86a52e21fa05f4cb752dcbe4881b85fe194d6N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5c3f875b57efbb94e0559da5b5d86a52e21fa05f4cb752dcbe4881b85fe194d6N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 328
    3⤵
    - Program crash
    PID:1732

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/1840-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1840-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1840-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download